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<!--
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Copyright (c) 2016 OpenPOWER Foundation
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Licensed under the GNU Free Documentation License, Version 1.3;
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with no Invariants Sections, with no Front-Cover Texts,
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and with no Back-Cover Texts (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.gnu.org/licenses/fdl-1.3.txt
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-->
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<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:lang="en">
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<title>Object Files</title>
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<section xml:id="dbdoclet.50655241_97607">
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<title>ELF Header</title>
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<para>The file class member of the ELF header identification array,
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e_ident[EI_CLASS], identifies the ELF file as 64-bit encoded by holding the
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value ELFCLASS64.</para>
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<para>For a big-endian encoded ELF file, the data encoding member of the
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ELF header identification array, e_ident[EI_DATA], holds the value 2,
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defined as data encoding ELFDATA2MSB. For a little-endian encoded ELF file,
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it holds the value 1, defined as data encoding ELFDATA2LSB.</para>
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<programlisting>e_ident[EI_CLASS] ELFCLASS64 For all 64-bit implementations.
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e_ident[EI_DATA] ELFDATA2MSB For all big-endian implementations.
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e_ident[EI_DATA] ELFDATA2LSB For all little-endian implementations.</programlisting>
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<para>The ELF header's e_flags member holds bit flags associated with the
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file. The 64-bit PowerPC processor family defines the following
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flags.</para>
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<para>E_flags defining the ABI level:</para>
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<informaltable frame="none" colsep="0" rowsep="0">
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<tgroup cols="2">
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<colspec colname="c1" colwidth="10*" />
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<colspec colname="c2" colwidth="90*" />
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<tbody>
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<row>
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<entry>
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<para>0</para>
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</entry>
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<entry>
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<para>For ELF object files of an unspecified nature.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>1</para>
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</entry>
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<entry>
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<para>For the Power ELF V1 ABI using function descriptors. This
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ABI is currently only used for big-endian PowerPC
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implementations.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>2</para>
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</entry>
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<entry>
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<para>For the OpenPOWER ELF V2 ABI using the facilities described
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here and including function pointers to directly reference
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functions.</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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<para>The ABI version to be used for the ELF header file is specified with
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the .abiversion pseudo-op:</para>
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<programlisting>.abiversion 2</programlisting>
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<para>Processor identification resides in the ELF header's e_machine
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member, and must have the value EM_PPC64, defined as the value 21.</para>
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</section>
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<section>
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<title>Special Sections</title>
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<para>
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<xref linkend="dbdoclet.50655241_64556" /> lists the sections that are used
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in the Power Architecture to hold program and control information. It also
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shows their types and attributes.</para>
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<para> </para>
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<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_64556">
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<title>Special Sections</title>
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<tgroup cols="3">
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<colspec colname="c1" colwidth="15*" />
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<colspec colname="c2" colwidth="35*" />
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<colspec colname="c3" colwidth="50*" />
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<thead>
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<row>
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<entry>
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<para>
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<emphasis role="bold">Section Name</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Type</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Attributes</emphasis>
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</para>
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</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>
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<para>.got</para>
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</entry>
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<entry>
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<para>SHT_PROGBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.toc</para>
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</entry>
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<entry>
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<para>SHT_PROGBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.plt<footnote>
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<para>The type of the OpenPOWER ABI .plt section is
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SHT_NOBITS, not SHT_PROGBITS as on most other processors.</para>
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</footnote></para>
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</entry>
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<entry>
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<para>SHT_NOBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.sdata</para>
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</entry>
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<entry>
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<para>SHT_PROGBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.sbss</para>
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</entry>
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<entry>
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<para>SHT_NOBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.data1</para>
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</entry>
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<entry>
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<para>SHT_PROGBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>.bss1</para>
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</entry>
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<entry>
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<para>SHT_NOBITS</para>
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</entry>
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<entry>
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<para>SHF_ALLOC + SHF_WRITE</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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<para>Suggested uses of these special sections follow:</para>
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<itemizedlist>
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<listitem>
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<para>The .got section may hold the Global Offset Table (GOT). This
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section is not normally present in a relocatable object file because it
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is linker generated. The linker must ensure that .got is aligned to an
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8-byte boundary. In an executable or shared library, it may contain
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part or all of the TOC. For more information, see
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<xref linkend="dbdoclet.50655240___RefHeading___Toc377640591" /> and
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<xref linkend="dbdoclet.50655242_47739" />.</para>
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</listitem>
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<listitem>
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<para>The .toc section may hold the initialized TOC. The .toc section
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must be aligned to an 8-byte boundary. Address elements within .toc
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must be aligned to 8-byte boundaries to support linker optimization of
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the .toc section. In a relocatable object file, .toc may contain
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addresses of objects and functions; in this respect it may be thought
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of as a compiler-managed GOT. It may also contain other constants or
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variables; in this respect it is like .sdata. In an executable or
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shared library, it may contain part or the entirety of the TOC. For
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more information, see
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<xref linkend="dbdoclet.50655241_66700" />,
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<xref linkend="dbdoclet.50655240___RefHeading___Toc377640591" />, and
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<xref linkend="dbdoclet.50655242_47739" />.</para>
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</listitem>
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<listitem>
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<para>The .plt section may hold the procedure linkage table. This
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section is not normally present in a relocatable object file because it
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is linker generated. Each entry within the .plt section is an 8-byte
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address. The linker must ensure that .plt is aligned to an 8-byte
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boundary. For more information, see
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<xref linkend="dbdoclet.50655242_20388" />.</para>
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</listitem>
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<listitem>
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<para>The .sdata section may hold initialized small-sized data. For
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more information, see
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<xref linkend="dbdoclet.50655241_81959" />.</para>
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</listitem>
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<listitem>
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<para>The .sbss section may hold uninitialized small-sized data.</para>
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</listitem>
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<listitem>
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<para>The .data1 section may hold initialized medium-sized data.</para>
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</listitem>
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<listitem>
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<para>The .bss1 section may hold uninitialized medium-sized
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data.</para>
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</listitem>
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</itemizedlist>
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<para>Tools that support this ABI are not required to use these sections.
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However, if a tool uses these sections, it must assign the types and
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attributes specified in
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<xref linkend="dbdoclet.50655241_64556" />. Tools are not required to use
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the sections precisely as suggested. Relocation information and the code
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that refers to it define the actual use of a section.</para>
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</section>
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<section xml:id="dbdoclet.50655241_66700">
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<title>TOC</title>
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<para>The TOC is part of the data segment of an executable program.</para>
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<para>This section describes a common layout of the TOC in an executable
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file or shared object. Particular tools are not required to follow the
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layout specified here.</para>
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<para>The TOC region commonly includes data items within the .got, .toc,
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.sdata, and .sbss sections. In the medium code model, they can be addressed
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with 32-bit signed offsets from the TOC pointer register. The TOC pointer
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register typically points to the beginning of the .got section + 0x8000,
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which permits a 2 GB TOC with the medium and large code models. The .got
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section is typically created by the link editor based on @got relocations.
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The .toc section is typically included from relocatable object files
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referenced during the link phase.</para>
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<para>The TOC may straddle the boundary between initialized and
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uninitialized data in the data segment. The common order of sections in the
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data segment, some of which may be empty, follows:</para>
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<programlisting>.rodata
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.data
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.data1
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.got
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.toc
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.sdata
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.sbss
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.plt
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.bss1
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.bss</programlisting>
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<para>The medium code model is expected to provide a sufficiently large TOC
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to provide all data addressing needs of a module with a single TOC.</para>
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<para>Compilers may generate two-instruction medium code model references
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(or, if selected, short displacement one-instruction references) for all
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data items that are in the TOC for the object file being compiled. Such
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references are relative to the TOC pointer register, r2. (The linker may
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optimize two-instruction forms to one instruction forms, replacing a first
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instruction of the two instruction form with a nop and rewriting the second
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instruction. Consequently, the TOC pointer must be live during the first
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and second instruction of a two-instruction reference.)</para>
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<para> </para>
|
|
|
|
|
|
<bridgehead>Modules Containing Multiple TOCs</bridgehead>
|
|
|
|
|
|
<para>The link editor may create multiple TOCs. In such a case, the
|
|
|
|
|
|
constituent .got, .toc, .sdata, and .sbss sections are conceptually
|
|
|
|
|
|
repeated as necessary, with each TOC typically using a TOC pointer value
|
|
|
|
|
|
of its base plus 0x8000. Any constituent section of type SHT_NOBITS in
|
|
|
|
|
|
any TOC but the last is converted to type SHT_PROGBITS filled with
|
|
|
|
|
|
zeros.</para>
|
|
|
|
|
|
<para>When multiple TOCs are present, linking must take care to save,
|
|
|
|
|
|
initialize, and restore TOC pointers within a single module when calling
|
|
|
|
|
|
from one function to a second function using a different TOC pointer
|
|
|
|
|
|
value. Many of the same issues associated with a cross-module call apply
|
|
|
|
|
|
also to calls within a module but using different TOC pointers.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_73385">
|
|
|
|
|
|
<title>Symbol Table</title>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_95185">
|
|
|
|
|
|
<title>Symbol Values</title>
|
|
|
|
|
|
<para>An executable file that contains a symbol reference that is to be
|
|
|
|
|
|
resolved dynamically by an associated shared object will have a symbol
|
|
|
|
|
|
table entry for that symbol. This entry will identify the symbol as
|
|
|
|
|
|
undefined by setting the st_shndx member to SHN_UNDEF.</para>
|
|
|
|
|
|
<para>The OpenPOWER ABI uses the three most-significant bits in the
|
|
|
|
|
|
symbol st_other field to specify the number of instructions between a
|
|
|
|
|
|
function's global entry point and local entry point. The global entry
|
|
|
|
|
|
point is used when it is necessary to set up the TOC pointer (r2) for the
|
|
|
|
|
|
function. The local entry point is used when r2 is known to already be
|
|
|
|
|
|
valid for the function. A value of zero in these bits asserts that the
|
|
|
|
|
|
function does not use r2.</para>
|
|
|
|
|
|
<para>The values of these three most significant bits of the st_other
|
|
|
|
|
|
field have the following meanings:</para>
|
|
|
|
|
|
<informaltable frame="none" colsep="0" rowsep="0">
|
|
|
|
|
|
<tgroup cols="2">
|
|
|
|
|
|
<colspec colname="c1" colwidth="10*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="90*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local and global entry points are the same, and the
|
|
|
|
|
|
function has a single entry point with no requirement on r12 or
|
|
|
|
|
|
r2. On return, r2 will contain the same value as at
|
|
|
|
|
|
entry.</para>
|
|
|
|
|
|
<para>This value should be used for functions that do not
|
|
|
|
|
|
require the use of a TOC register to access external data. In
|
|
|
|
|
|
particular, functions that do not access data through the TOC
|
|
|
|
|
|
pointer can use a common entry point for the local and global
|
|
|
|
|
|
entry points.</para>
|
|
|
|
|
|
<note>
|
|
|
|
|
|
<para>If the function is not a leaf function, it must
|
|
|
|
|
|
call subroutines using the R_PPC64_REL24_NOTOC relocation
|
|
|
|
|
|
to indicate that the TOC register is not initialized. In
|
|
|
|
|
|
turn, this may lead to more expensive procedure linkage
|
|
|
|
|
|
table (PLT) stub code than would be necessary if a TOC
|
|
|
|
|
|
register were initialized.</para>
|
|
|
|
|
|
</note>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local and global entry points are the same, and r2
|
|
|
|
|
|
should be treated as caller-saved for local and global
|
|
|
|
|
|
callers.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local entry point is at one instruction past the
|
|
|
|
|
|
global entry point.</para>
|
|
|
|
|
|
<para>When called at the global entry point, r12 must be set to
|
|
|
|
|
|
the function entry address. r2 will be set to the TOC base that
|
|
|
|
|
|
this function needs, so it must be preserved and restored by
|
|
|
|
|
|
the caller.</para>
|
|
|
|
|
|
<para>When called at the local entry point, r12 is not used and
|
|
|
|
|
|
r2 must already point to the TOC base that this function needs,
|
|
|
|
|
|
and it will be preserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local entry point is at two instructions past the
|
|
|
|
|
|
global entry point.</para>
|
|
|
|
|
|
<para>When called at the global entry point, r12 must be set to
|
|
|
|
|
|
the function entry address. r2 will be set to the TOC base that
|
|
|
|
|
|
this function needs, so it must be preserved and restored by
|
|
|
|
|
|
the caller.</para>
|
|
|
|
|
|
<para>When called at the local entry point, r12 is not used and
|
|
|
|
|
|
r2 must already point to the TOC base that this function needs,
|
|
|
|
|
|
and it will be preserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>4</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local entry point is at four instructions past the
|
|
|
|
|
|
global entry point.</para>
|
|
|
|
|
|
<para>When called at the global entry point, r12 must be set to
|
|
|
|
|
|
the function entry address. r2 will be set to the TOC base that
|
|
|
|
|
|
this function needs, so it must be preserved and restored by
|
|
|
|
|
|
the caller.</para>
|
|
|
|
|
|
<para>When called at the local entry point, r12 is not used and
|
|
|
|
|
|
r2 must already point to the TOC base that this function needs,
|
|
|
|
|
|
and it will be preserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local entry point is at eight instructions past the
|
|
|
|
|
|
global entry point.</para>
|
|
|
|
|
|
<para>When called at the global entry point, r12 must be set to
|
|
|
|
|
|
the function entry address. r2 will be set to the TOC base that
|
|
|
|
|
|
this function needs, so it must be preserved and restored by
|
|
|
|
|
|
the caller.</para>
|
|
|
|
|
|
<para>When called at the local entry point, r12 is not used and
|
|
|
|
|
|
r2 must already point to the TOC base that this function needs,
|
|
|
|
|
|
and it will be preserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The local entry point is at 16 instructions past the
|
|
|
|
|
|
global entry point.</para>
|
|
|
|
|
|
<para>When called at the global entry point, r12 must be set to
|
|
|
|
|
|
the function entry address. r2 will be set to the TOC base that
|
|
|
|
|
|
this function needs, so it must be preserved and restored by
|
|
|
|
|
|
the caller.</para>
|
|
|
|
|
|
<para>When called at the local entry point, r12 is not used and
|
|
|
|
|
|
r2 must already point to the TOC base that this function needs,
|
|
|
|
|
|
and it will be preserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>7</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Reserved</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>The local-entry-point handling field of st_other is generated with
|
|
|
|
|
|
the .localentry pseudo op:</para>
|
|
|
|
|
|
<programlisting revisionflag="changed"> .globl my_func
|
|
|
|
|
|
.type my_func, @function
|
|
|
|
|
|
my_func:
|
|
|
|
|
|
addis r2, r12, my_sym@ha(.TOC.-my_func)
|
|
|
|
|
|
addi r2, r2, my_sym@l(.TOC.-my_func)
|
|
|
|
|
|
.localentry my_func, .-my_func
|
|
|
|
|
|
... ; function definition
|
|
|
|
|
|
blr</programlisting>
|
|
|
|
|
|
<para>Functions called via symbols with an st_other value of 0 may be
|
|
|
|
|
|
called without a valid TOC pointer in r2. Symbols of functions that
|
|
|
|
|
|
require a local entry with a valid TOC pointer should generate a symbol
|
|
|
|
|
|
with an st_other field value of 2 - 6 and both local and global entry
|
|
|
|
|
|
points, even if the global entry point will not be used. (In such a case,
|
|
|
|
|
|
the instructions of the global entry setup sequence may optionally be
|
|
|
|
|
|
initialized with TRAP instructions.)</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_81959">
|
|
|
|
|
|
<title>Use of the Small Data Area</title>
|
|
|
|
|
|
<para>For a data item in the .sdata or .sbss sections, a compiler may
|
|
|
|
|
|
generate short-form one-instruction references. In an executable file or
|
|
|
|
|
|
shared library, such a reference is relative to the address of the TOC
|
|
|
|
|
|
base symbol (which can be obtained from r2 if a TOC pointer is
|
|
|
|
|
|
initialized). A compiler that generates code using the small data area
|
|
|
|
|
|
should provide an option to select the maximum size of objects placed in
|
|
|
|
|
|
the small data area, and a means of disabling any use of the small data
|
|
|
|
|
|
area. When generating code for ELF shared libraries, the small data area
|
|
|
|
|
|
should not be used for default-visibility global objects. This is to
|
|
|
|
|
|
satisfy ELF shared-library symbol interposition rules. That is, an
|
|
|
|
|
|
ordinary global symbol in a shared library may be overridden by a symbol
|
|
|
|
|
|
of the same name defined in the executable or another shared library.
|
|
|
|
|
|
Supporting interposition when using TOC-pointer relative addressing would
|
|
|
|
|
|
require text relocations.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_18894">
|
|
|
|
|
|
<title>Relocation Types</title>
|
|
|
|
|
|
<para>The relocation entries in a relocatable file are used by the link
|
|
|
|
|
|
editor to transform the contents of that file into an executable file or a
|
|
|
|
|
|
shared object file. The application and result of a relocation are similar
|
|
|
|
|
|
for both. Several relocatable files may be combined into one output file.
|
|
|
|
|
|
The link editor merges the content of the files, sets the value of all
|
|
|
|
|
|
function symbols, and performs relocations.</para>
|
|
|
|
|
|
<para>The 64-bit OpenPOWER Architecture uses Elf64_Rela relocation entries
|
|
|
|
|
|
exclusively. A relocation entry may operate upon a halfword, word, or
|
|
|
|
|
|
doubleword. The r_offset member of the relocation entry designates the
|
|
|
|
|
|
first byte of the address affected by the relocation. The subfield of
|
|
|
|
|
|
r_offset affected by a relocation is implicit in the definition of the
|
|
|
|
|
|
applied relocation type. The r_addend member of the relocation entry serves
|
|
|
|
|
|
as the relocation addend, which is described in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_45722" /> for each relocation type.</para>
|
|
|
|
|
|
<para>A relocation type defines a set of instructions and calculations
|
|
|
|
|
|
necessary to alter the subfield data of a particular relocation
|
|
|
|
|
|
field.</para>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_45722">
|
|
|
|
|
|
<title>Relocation Fields</title>
|
|
|
|
|
|
<para>The following relocation fields identify a subfield of an address
|
|
|
|
|
|
affected by a relocation.</para>
|
|
|
|
|
|
<para>Bit numbers are shown at the bottom of the boxes. (Only big-endian
|
|
|
|
|
|
bit numbers are shown for space considerations.) Byte numbers are shown
|
|
|
|
|
|
in the top of the boxes; big-endian byte numbers are displayed in the
|
|
|
|
|
|
upper left corners and little-endian in the upper right corners. The byte
|
|
|
|
|
|
order specified in a relocatable file’s ELF header applies to all the
|
|
|
|
|
|
elements of a relocation entry, the relocation field definitions, and
|
|
|
|
|
|
relocation type calculations.</para>
|
|
|
|
|
|
<para>In the following figure, doubleword64 specifies a 64-bit field
|
|
|
|
|
|
occupying 8 bytes, the alignment of which is 8 bytes unless otherwise
|
|
|
|
|
|
specified.</para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="8">
|
|
|
|
|
|
<colspec colname="c1" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c5" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c6" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c7" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c8" colwidth="12*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>7</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>4</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c8" namest="c1" align="center">
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row rowsep="1">
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>4</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>7</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c8" namest="c1" align="center">
|
|
|
|
|
|
<para>doubleword64 (continued)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>63</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<para>In the following figure, word32 specifies a 32-bit field taking up
|
|
|
|
|
|
4 bytes and maintaining 4-byte alignment unless otherwise
|
|
|
|
|
|
indicated.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="8">
|
|
|
|
|
|
<colspec colname="c1" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c5" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c6" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c7" colwidth="12*" />
|
|
|
|
|
|
<colspec colname="c8" colwidth="12*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c8" namest="c1" align="center">
|
|
|
|
|
|
<para>word32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>31</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>In the following figure, word30 specifies a 30-bit field taking up
|
|
|
|
|
|
bits 0 - 29 of a word and maintaining 4-byte alignment unless otherwise
|
|
|
|
|
|
indicated.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="32">
|
|
|
|
|
|
<colspec colname="c1" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c5" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c6" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c7" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c8" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c9" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c10" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c11" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c12" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c13" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c14" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c15" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c16" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c17" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c18" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c19" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c20" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c21" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c22" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c23" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c24" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c25" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c26" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c27" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c28" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c29" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c30" colwidth="3*" colsep="1"/>
|
|
|
|
|
|
<colspec colname="c31" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c32" colwidth="3*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c30" namest="c1" align="center" colsep="1">
|
|
|
|
|
|
<para>word30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
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|
|
<row>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
<para> </para>
|
|
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|
|
</entry>
|
|
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<entry>
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<para> </para>
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</entry>
|
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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|
</entry>
|
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|
<entry>
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|
<para> </para>
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|
</entry>
|
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<entry>
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|
<para> </para>
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|
</entry>
|
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|
|
<entry>
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|
|
<para> </para>
|
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|
|
</entry>
|
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|
|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
<para> </para>
|
|
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|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>29</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>31</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>In the following figure, low24 specifies a 24-bit field taking up
|
|
|
|
|
|
bits 6 - 29 of a word and maintaining 4-byte alignment. The other bits
|
|
|
|
|
|
remain unchanged. A call or unconditional branch instruction is an
|
|
|
|
|
|
example of this field.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="32">
|
|
|
|
|
|
<colspec colname="c1" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c5" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c6" colwidth="3*" colsep="1"/>
|
|
|
|
|
|
<colspec colname="c7" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c8" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c9" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c10" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c11" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c12" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c13" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c14" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c15" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c16" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c17" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c18" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c19" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c20" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c21" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c22" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c23" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c24" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c25" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c26" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c27" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c28" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c29" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c30" colwidth="3*" colsep="1"/>
|
|
|
|
|
|
<colspec colname="c31" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c32" colwidth="3*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry colsep="1">
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry nameend="c30" namest="c10" colsep="1" align="center">
|
|
|
|
|
|
<para>low24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
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|
<entry>
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|
<para> </para>
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|
</entry>
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<entry>
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<para> </para>
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|
</entry>
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<entry>
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|
<para> </para>
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|
</entry>
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|
<entry>
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<para> </para>
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</entry>
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<entry>
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|
<para> </para>
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</entry>
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<entry>
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|
<para> </para>
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|
</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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|
<para> </para>
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</entry>
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|
<entry>
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|
<para> </para>
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|
</entry>
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|
<entry>
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|
<para> </para>
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</entry>
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|
<entry>
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|
<para> </para>
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</entry>
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|
<entry>
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|
<para> </para>
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|
</entry>
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|
<entry>
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|
<para> </para>
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|
</entry>
|
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|
<entry>
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|
<para> </para>
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|
</entry>
|
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|
|
<entry>
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|
<para> </para>
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|
</entry>
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|
<entry align="right" colsep="1">
|
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|
|
<para>29</para>
|
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|
|
</entry>
|
|
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|
|
<entry align="left">
|
|
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|
|
<para>30</para>
|
|
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|
|
</entry>
|
|
|
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|
|
<entry align="left">
|
|
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|
|
|
<para>31</para>
|
|
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|
|
|
</entry>
|
|
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|
|
</row>
|
|
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|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>In the following figure, low21 specifies a 21-bit field occupying
|
|
|
|
|
|
the least-significant bits of a word with 4-byte alignment.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="32">
|
|
|
|
|
|
<colspec colname="c1" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c5" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c6" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c7" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c8" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c9" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c10" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c11" colwidth="3*" colsep="1"/>
|
|
|
|
|
|
<colspec colname="c12" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c13" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c14" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c15" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c16" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c17" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c18" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c19" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c20" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c21" colwidth="3*" />
|
|
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|
|
|
<colspec colname="c22" colwidth="3*" />
|
|
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|
|
<colspec colname="c23" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c24" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c25" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c26" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c27" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c28" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c29" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c30" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c31" colwidth="3*" />
|
|
|
|
|
|
<colspec colname="c32" colwidth="3*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry nameend="c32" namest="c12" colsep="1" align="center">
|
|
|
|
|
|
<para>low21</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>10</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>11</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>31</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>In the following figure, low14 specifies a 14-bit field taking up
|
|
|
|
|
|
bits 16 - 29 and possibly bit 10 (the branch prediction bit) of a word
|
|
|
|
|
|
and maintaining 4-byte alignment. The other bits remain unchanged. A
|
|
|
|
|
|
conditional branch instruction is an example usage.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
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|
<tgroup cols="32">
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<colspec colname="c1" colwidth="3*" />
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<colspec colname="c2" colwidth="3*" />
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<colspec colname="c3" colwidth="3*" />
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<colspec colname="c4" colwidth="3*" />
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<colspec colname="c5" colwidth="3*" />
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<colspec colname="c6" colwidth="3*" />
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<colspec colname="c7" colwidth="3*" />
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<colspec colname="c8" colwidth="3*" />
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<colspec colname="c9" colwidth="3*" />
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<colspec colname="c10" colwidth="3*" colsep="1" />
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<colspec colname="c11" colwidth="3*" colsep="1" />
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<colspec colname="c12" colwidth="3*" />
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<colspec colname="c13" colwidth="3*" />
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<colspec colname="c14" colwidth="3*" />
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<colspec colname="c15" colwidth="3*" />
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<colspec colname="c16" colwidth="3*" colsep="1" />
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<colspec colname="c17" colwidth="3*" />
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<colspec colname="c18" colwidth="3*" />
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<colspec colname="c19" colwidth="3*" />
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<colspec colname="c20" colwidth="3*" />
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<colspec colname="c21" colwidth="3*" />
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<colspec colname="c22" colwidth="3*" />
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<colspec colname="c23" colwidth="3*" />
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<colspec colname="c24" colwidth="3*" />
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<colspec colname="c25" colwidth="3*" />
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<colspec colname="c26" colwidth="3*" />
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<colspec colname="c27" colwidth="3*" />
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<colspec colname="c28" colwidth="3*" />
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<colspec colname="c29" colwidth="3*" />
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<colspec colname="c30" colwidth="3*" colsep="1" />
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<colspec colname="c31" colwidth="3*" />
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<colspec colname="c32" colwidth="3*" />
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<tbody>
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<row>
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<entry align="left">
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<para>0</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry align="right" colsep="1">
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<para>3</para>
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</entry>
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<entry align="left">
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<para>1</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
|
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<entry align="right" colsep="1">
|
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<para>2</para>
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</entry>
|
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|
|
<entry align="left">
|
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<para>2</para>
|
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</entry>
|
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
|
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</entry>
|
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<entry>
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<para> </para>
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</entry>
|
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|
<entry align="right" colsep="1">
|
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|
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<para>1</para>
|
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|
|
</entry>
|
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|
|
<entry align="left">
|
|
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|
|
<para>3</para>
|
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</entry>
|
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<entry>
|
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|
<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
|
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</entry>
|
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|
<entry align="right">
|
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|
|
<para>0</para>
|
|
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|
|
</entry>
|
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|
|
</row>
|
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<row>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
|
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
|
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|
<entry>
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|
<para> </para>
|
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</entry>
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|
<entry>
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
|
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<para> </para>
|
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|
|
</entry>
|
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|
<entry>
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<para> </para>
|
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|
</entry>
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|
<entry>
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
|
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
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|
<para> </para>
|
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|
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</entry>
|
|
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|
|
<entry nameend="c30" namest="c17" align="center">
|
|
|
|
|
|
<para>low14</para>
|
|
|
|
|
|
</entry>
|
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|
|
<entry>
|
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|
|
|
<para> </para>
|
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|
</entry>
|
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|
<entry>
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|
<para> </para>
|
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|
</entry>
|
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|
</row>
|
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|
<row>
|
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|
|
<entry>
|
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|
|
<para>0</para>
|
|
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|
|
</entry>
|
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|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
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|
<entry>
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
|
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|
<para> </para>
|
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|
|
</entry>
|
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|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
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|
|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
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|
<entry>
|
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|
|
<para> </para>
|
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|
|
</entry>
|
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|
<entry>
|
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|
<para> </para>
|
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|
</entry>
|
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|
<entry>
|
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|
|
<para> </para>
|
|
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|
|
</entry>
|
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|
|
<entry>
|
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|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>10</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
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|
|
|
</entry>
|
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|
|
<entry>
|
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|
|
<para> </para>
|
|
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|
|
</entry>
|
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|
|
<entry>
|
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|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>15</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>29</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>31</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para>In the following figure, half16 specifies a 16-bit field taking up
|
|
|
|
|
|
two bytes and maintaining 2-byte alignment. The immediate field of an Add
|
|
|
|
|
|
Immediate instruction is an example of this field.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="all" rowsep="0" colsep="0">
|
|
|
|
|
|
<?dbhtml table-width="50%" ?>
|
|
|
|
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<?dbfo table-width="50%" ?>
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<tgroup cols="16">
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<colspec colname="c1" colwidth="6*" />
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<colspec colname="c2" colwidth="6*" />
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<colspec colname="c3" colwidth="6*" />
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<colspec colname="c4" colwidth="6*" />
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<colspec colname="c5" colwidth="6*" />
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<colspec colname="c6" colwidth="6*" />
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<colspec colname="c7" colwidth="6*" />
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<colspec colname="c8" colwidth="6*" />
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<colspec colname="c9" colwidth="6*" />
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<colspec colname="c10" colwidth="6*" />
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<colspec colname="c11" colwidth="6*" />
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<colspec colname="c12" colwidth="6*" />
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<colspec colname="c13" colwidth="6*" />
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<colspec colname="c14" colwidth="6*" />
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<colspec colname="c15" colwidth="6*" />
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<colspec colname="c16" colwidth="6*" />
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<tbody>
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<row>
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<entry align="left">
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<para>0</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry align="right" colsep="1">
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<para>1</para>
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</entry>
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<entry align="left">
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<para>1</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry align="right">
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<para>0</para>
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</entry>
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</row>
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<row>
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<entry nameend="c16" namest="c1" align="center">
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<para>half16</para>
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</entry>
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</row>
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<row>
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<entry align="left">
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<para>0</para>
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</entry>
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<entry>
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<para>1</para>
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</entry>
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<entry>
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<para>2</para>
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</entry>
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<entry>
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<para>3</para>
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</entry>
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<entry>
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<para>4</para>
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</entry>
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<entry>
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<para>5</para>
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</entry>
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<entry>
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<para>6</para>
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</entry>
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<entry>
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<para>7</para>
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</entry>
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<entry>
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<para>8</para>
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</entry>
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<entry>
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<para>9</para>
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</entry>
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<entry>
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<para>10</para>
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</entry>
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<entry>
|
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|
|
<para>11</para>
|
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</entry>
|
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|
<entry>
|
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|
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<para>12</para>
|
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|
</entry>
|
|
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|
<entry>
|
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|
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<para>13</para>
|
|
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|
|
</entry>
|
|
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|
|
<entry>
|
|
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|
|
<para>14</para>
|
|
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|
|
</entry>
|
|
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|
|
|
<entry align="right">
|
|
|
|
|
|
<para>15</para>
|
|
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|
|
</entry>
|
|
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|
|
</row>
|
|
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|
|
|
</tbody>
|
|
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|
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</tgroup>
|
|
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|
|
</informaltable>
|
|
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|
|
<para>In the following figure, half16ds is similar to half16, but is
|
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|
|
|
really just 14 bits because the two least-significant bits must be zero
|
|
|
|
|
|
and are not really part of the field. (Used by, for example, the ldu
|
|
|
|
|
|
instruction.) In addition to the use of this relocation field with the DS
|
|
|
|
|
|
forms, half16ds relocations are also used in conjunction with DQ forms.
|
|
|
|
|
|
In those instances, the linker and assembler collaborate to create valid
|
|
|
|
|
|
DQ forms. They raise an error if the specified offset does not meet the
|
|
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|
|
|
constraints of a valid DQ instruction form displacement.</para>
|
|
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|
|
<informaltable frame="all" rowsep="0" colsep="0">
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|
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<?dbhtml table-width="50%" ?>
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<?dbfo table-width="50%" ?>
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<tgroup cols="16">
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<colspec colname="c1" colwidth="6*" />
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<colspec colname="c2" colwidth="6*" />
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<colspec colname="c3" colwidth="6*" />
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<colspec colname="c4" colwidth="6*" />
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<colspec colname="c5" colwidth="6*" />
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<colspec colname="c6" colwidth="6*" />
|
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|
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<colspec colname="c7" colwidth="6*" />
|
|
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|
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<colspec colname="c8" colwidth="6*" />
|
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|
|
<colspec colname="c9" colwidth="6*" />
|
|
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|
|
<colspec colname="c10" colwidth="6*" />
|
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<colspec colname="c11" colwidth="6*" />
|
|
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|
<colspec colname="c12" colwidth="6*" />
|
|
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|
|
<colspec colname="c13" colwidth="6*" />
|
|
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|
|
<colspec colname="c14" colwidth="6*" colsep="1"/>
|
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|
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<colspec colname="c15" colwidth="6*" />
|
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<colspec colname="c16" colwidth="6*" />
|
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<tbody>
|
|
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|
|
<row>
|
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|
|
<entry align="left">
|
|
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|
|
<para>0</para>
|
|
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|
|
</entry>
|
|
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|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
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|
|
</entry>
|
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|
<entry>
|
|
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|
|
<para> </para>
|
|
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|
|
</entry>
|
|
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|
|
<entry>
|
|
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|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
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|
|
|
</entry>
|
|
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|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right" colsep="1">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
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|
|
</entry>
|
|
|
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|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c14" namest="c1" align="center">
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry align="left">
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>4</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>7</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>8</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>9</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>10</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>11</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>12</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>13</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>14</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry align="right">
|
|
|
|
|
|
<para>15</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_51269">
|
|
|
|
|
|
<title>Relocation Notations</title>
|
|
|
|
|
|
<para>The following notations are used in the relocation table.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="none" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="2">
|
|
|
|
|
|
<colspec colname="c1" colwidth="20*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="80*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the addend used to compute the value of the
|
|
|
|
|
|
relocatable field.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>B</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the base address at which a shared object file
|
|
|
|
|
|
has been loaded into memory during execution. Generally, a
|
|
|
|
|
|
shared object file is built with a 0 base virtual address, but
|
|
|
|
|
|
the execution address will be different. See Program Header in
|
|
|
|
|
|
the System V ABI for more information about the base
|
|
|
|
|
|
address.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>G</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the offset from .TOC. at which the address of
|
|
|
|
|
|
the relocation entry’s symbol resides during execution. This
|
|
|
|
|
|
implies the creation of a .got section. For more information,
|
|
|
|
|
|
see
|
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|
|
<xref linkend="dbdoclet.50655240___RefHeading___Toc377640591" /> and
|
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|
|
|
|
<xref linkend="dbdoclet.50655242_47739" />.</para>
|
|
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|
|
<para>Reference in a calculation to the value G implicitly
|
|
|
|
|
|
creates a GOT entry for the indicated symbol.</para>
|
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|
</entry>
|
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|
</row>
|
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|
|
<row>
|
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|
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<entry>
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<para>L</para>
|
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|
|
</entry>
|
|
|
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|
|
<entry>
|
|
|
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|
|
<para>Represents the section offset or address of the procedure
|
|
|
|
|
|
linkage table entry for the symbol. This implies the creation
|
|
|
|
|
|
of a .plt section if one does not already exist. It also
|
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|
|
|
|
implies the creation of a procedure linkage table (PLT) entry
|
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|
|
|
|
for resolving the symbol. For an unresolved symbol, the PLT
|
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|
|
|
entry points to a PLT resolver stub. For a resolved symbol, a
|
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|
|
procedure linkage table entry holds the final effective address
|
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|
|
of a dynamically resolved symbol (see
|
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|
|
<xref linkend="dbdoclet.50655242_20388" />).</para>
|
|
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|
</entry>
|
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|
</row>
|
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|
|
<row>
|
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<entry>
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|
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<para>M</para>
|
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|
</entry>
|
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|
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<entry>
|
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|
|
<para>Similar to G, except that the address that is stored may
|
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|
|
|
be the address of the procedure linkage table entry for the
|
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|
|
symbol.</para>
|
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</entry>
|
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|
</row>
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|
<row>
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<entry>
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<para>P</para>
|
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|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
<para>Represents the place (section offset or address) of the
|
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|
|
|
|
storage unit being relocated (computed using r_offset).</para>
|
|
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|
|
</entry>
|
|
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|
</row>
|
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|
|
<row>
|
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|
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<entry>
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|
<para>R</para>
|
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|
</entry>
|
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|
|
<entry>
|
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|
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|
|
<para>Represents the offset of the symbol within the section in
|
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|
|
which the symbol is defined (its section-relative
|
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|
|
|
address).</para>
|
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|
|
</entry>
|
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|
</row>
|
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|
|
<row>
|
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|
|
<entry>
|
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|
|
<para>S</para>
|
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|
|
</entry>
|
|
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|
|
<entry>
|
|
|
|
|
|
<para>Represents the value of the symbol whose index resides in
|
|
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|
|
|
the relocation entry.</para>
|
|
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|
|
</entry>
|
|
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|
|
|
</row>
|
|
|
|
|
|
<row>
|
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|
|
|
<entry>
|
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|
|
|
<para>+</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes 64-bit modulus addition.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
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|
|
|
|
<para>-</para>
|
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|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes 64-bit modulus subtraction.</para>
|
|
|
|
|
|
</entry>
|
|
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|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
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|
|
|
<para>>></para>
|
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|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes arithmetic right-shifting.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(value)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes the least-significant 16 bits of the indicated
|
|
|
|
|
|
value. That is:</para>
|
|
|
|
|
|
<para>#lo(x) = (x & 0xffff).</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
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|
|
<para>#hi(value)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes bits 16 - 63 of the indicated value. That
|
|
|
|
|
|
is:</para>
|
|
|
|
|
|
<para>#hi(x) = x >> 16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
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|
|
<entry>
|
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|
|
|
<para>#ha(value)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Denotes the high adjusted value: bits 16 - 63 of the
|
|
|
|
|
|
indicated value, compensating for #lo( ) being treated as a
|
|
|
|
|
|
signed number. That is:</para>
|
|
|
|
|
|
<para>#ha(x) = (x + 0x8000) >> 16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>TP</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The value of the thread pointer in general-purpose
|
|
|
|
|
|
register r13.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>TLS_TP_OFFSET</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The constant value 0x7000, representing the offset (in
|
|
|
|
|
|
bytes) of the location that the thread pointer is initialized
|
|
|
|
|
|
to point to, relative to the start of the thread local storage
|
|
|
|
|
|
for the first initially available module.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>TCB_LENGTH</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>The constant value 0x8, representing the length of the
|
|
|
|
|
|
thread control block (TCB) in bytes.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tcb</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the base address of the TCB.</para>
|
|
|
|
|
|
<para>tcb = (tp - (TLS_TP_OFFSET + TCB_LENGTH))</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>dtv</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the base address of the dynamic thread vector
|
|
|
|
|
|
(DTV).</para>
|
|
|
|
|
|
<para>dtv = tcb[0]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>dtpmod</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the load module index of the load module that
|
|
|
|
|
|
contains the definition of the symbol being relocated and is
|
|
|
|
|
|
used to index the DTV.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the offset of the symbol being relocated
|
|
|
|
|
|
relative to the value of dtv[dtpmod].</para>
|
|
|
|
|
|
<para>dtv[dtpmod] + dtprel = (S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Represents the offset of the symbol being relocated
|
|
|
|
|
|
relative to the TP.</para>
|
|
|
|
|
|
<para>tp + tprel = (S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tlsgd</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Allocates two contiguous entries in the GOT to hold a
|
|
|
|
|
|
tls_index structure, with values dtpmod and dtprel, and
|
|
|
|
|
|
computes the offset from .TOC. of the first entry.</para>
|
|
|
|
|
|
<para>If n is the offset computed:</para>
|
|
|
|
|
|
<para>GOT[n] = dtpmod</para>
|
|
|
|
|
|
<para>GOT[n + 1] = dtprel</para>
|
|
|
|
|
|
<para>The call to __tls_get_addr ( ) happens as:</para>
|
|
|
|
|
|
<para>__tls_get_addr ((tls_index *) &GOT[n])</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tlsld</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Allocates two contiguous entries in the GOT to hold a
|
|
|
|
|
|
tls_index structure, with values dtpmod and zero, and computes
|
|
|
|
|
|
the offset from .TOC. of the first entry.</para>
|
|
|
|
|
|
<para>If n is the offset computed:</para>
|
|
|
|
|
|
<para>GOT[n] = dtpmod</para>
|
|
|
|
|
|
<para>GOT[n + 1] = 0</para>
|
|
|
|
|
|
<para>The call to __tls_get_addr ( ) happens as:</para>
|
|
|
|
|
|
<para>__tls_get_addr ((tls_index *) &GOT[n])</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tprelg</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Allocates an entry in the GOT with value tprel, and
|
|
|
|
|
|
computes the offset from .TOC. of the entry.</para>
|
|
|
|
|
|
<para>If n is the offset computed:</para>
|
|
|
|
|
|
<para>GOT[n] = tprel</para>
|
|
|
|
|
|
<para>The value of tprel is loaded into a register from the
|
|
|
|
|
|
location (GOT + n) to be used in an r2 form instruction.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<note>
|
|
|
|
|
|
<para>Relocations flagged with an asterisk(*) will
|
|
|
|
|
|
trigger a relocation failure if the value computed does
|
|
|
|
|
|
not fit in the field specified.</para>
|
|
|
|
|
|
</note>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Relocation Types Table</title>
|
|
|
|
|
|
<para>The following rules apply to the relocation types defined in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_47572" />:</para>
|
|
|
|
|
|
<itemizedlist>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>For relocation types in which the names contain 14 or 16, the
|
|
|
|
|
|
upper 49 bits of the value computed before shifting must all be the
|
|
|
|
|
|
same. For relocation types in which the names contain 24, the upper
|
|
|
|
|
|
39 bits of the value computed before shifting must all be the same.
|
|
|
|
|
|
For relocation types in which the names contain 14 or 24, the low 2
|
|
|
|
|
|
bits of the value computed before shifting must all be zero.</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>The relocation types whose Field column entry contains an
|
|
|
|
|
|
asterisk (*) are subject to failure if the value computed does not
|
|
|
|
|
|
fit in the allocated bits.</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Relocations that refer to half16ds (56 - 66, 87 - 88, 91 - 92,
|
|
|
|
|
|
95 - 96, and 101 - 102) are to be used to direct the linker to look
|
|
|
|
|
|
at the underlying instruction and treat the field as a DS or DQ
|
|
|
|
|
|
field. ABI-compliant tools should give an error for attempts to
|
|
|
|
|
|
relocate an address to a value that is not divisible by 4.</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_47572">
|
|
|
|
|
|
<title>Relocation Table</title>
|
|
|
|
|
|
<tgroup cols="4">
|
|
|
|
|
|
<colspec colname="c1" colwidth="30*" align="center" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="15*" align="center" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="15*" align="center" />
|
|
|
|
|
|
<colspec colname="c4" colwidth="40*" align="center" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation Name</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Value</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Field</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Expression</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tfoot>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c4" namest="c1" align="left">
|
|
|
|
|
|
<note>
|
|
|
|
|
|
<para>Relocation values 8, 9, 12, 13, 18, 23, 32,
|
|
|
|
|
|
and 247 are not used. This is to maintain a
|
|
|
|
|
|
correspondence to the relocation values used by the
|
|
|
|
|
|
32-bit PowerPC ELF ABI.
|
|
|
|
|
|
</para></note>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
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|
|
|
</tfoot>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_NONE</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>0</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
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|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word32*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>low24*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>4</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>5</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>6</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR14</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>7</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>low14*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>10</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>low24*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A - P) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL14</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>11</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>low14*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A - P) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>14</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>G</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>15</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(G)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(G)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>17</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(G)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_COPY</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>19</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>varies</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>See
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90220" />.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GLOB_DAT</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>20</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_JMP_SLOT</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>21</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>See
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90220" />.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_RELATIVE</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>22</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>B + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_UADDR32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word32*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_UADDR16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>25</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>26</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word32*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A - P</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>27</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word32*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>L</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTREL32</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>28</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word32*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>L - P</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>29</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(L)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(L)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>31</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(L)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>33</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>34</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(R + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>35</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(R + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>36</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(R + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>37</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>word30</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A - P) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>38</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGHER</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>39</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higher(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGHERA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>40</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highera(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGHEST</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>41</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highest(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGHESTA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>42</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highesta(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_UADDR64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>43</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>44</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A - P</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>45</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>L</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>46</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>L - P</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>47</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A - .TOC.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>48</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(S + A - .TOC.)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>49</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(S + A - .TOC.)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>50</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(S + A - .TOC.)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>51</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>.TOC.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>52</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>M</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>53</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(M)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>54</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(M)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>55</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(M)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>56</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>57</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(S + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>58</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>G >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>59</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(G) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLT16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>60</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(L) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>61</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(R + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_SECTOFF_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>62</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(R + A) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>63</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A - .TOC.) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOC16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(S + A - .TOC.) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>65</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>M >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>66</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(M) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>67</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>68</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@dtpmod</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>69</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@tprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>70</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>71</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>72</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>73</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@tprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>74</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>75</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>76</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>77</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>78</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>79</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@got@tlsgd</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>80</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@got@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>81</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@got@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>82</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@got@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>83</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@got@tlsld</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>84</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@got@tlsld)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>85</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@got@tlsld)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>86</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@got@tlsld)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>87</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@got@tprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>88</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@got@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>89</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@got@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>90</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@got@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>91</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@got@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>92</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@got@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>93</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(@got@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>94</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(@got@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>95</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@tprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>96</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGHER</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>97</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higher(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGHERA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>98</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highera(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGHEST</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>99</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highest(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGHESTA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>100</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highesta(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>101</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>102</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16ds</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGHER</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>103</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higher(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGHERA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>104</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highera(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGHEST</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>105</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highest(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGHESTA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>106</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#highesta(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSGD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>107</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSLD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>108</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TOCSAVE</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>109</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>none</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGH</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>110</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#high(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR16_HIGHA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>111</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higha(S + A)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGH</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>112</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#high(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HIGHA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>113</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higha(@tprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGH</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>114</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#high(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HIGHA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>115</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#higha(@dtprel)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24_NOTOC</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>116</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>low24*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>(S + A - P) >> 2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_ADDR64_LOCAL</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>117</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A (See
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90220" />.)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_IRELATIVE</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>248</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>doubleword64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>See
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90220" />.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>249</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>S + A - P</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>250</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#lo(S + A - P)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL16_HI</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>251</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#hi(S + A - P)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>252</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>half16*</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>#ha(S + A - P)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GNU_VTINHERIT</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>253</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GNU_VTENTRY</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>254</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_90220">
|
|
|
|
|
|
<title>Relocation Descriptions</title>
|
|
|
|
|
|
<para>The following list describes relocations that can require special
|
|
|
|
|
|
handling or description.</para>
|
|
|
|
|
|
<para>R_PPC64_GOT16*</para>
|
|
|
|
|
|
<para>These relocation types are similar to the corresponding
|
|
|
|
|
|
R_PPC64_ADDR16* types. However, they refer to the address of the symbol’s
|
|
|
|
|
|
GOT entry and instruct the link editor to build a GOT.</para>
|
|
|
|
|
|
<para>R_PPC64_PLTGOT16*</para>
|
|
|
|
|
|
<para>These relocation types are similar to the corresponding
|
|
|
|
|
|
R_PPC64_GOT16* types. However, if the link editor
|
|
|
|
|
|
<emphasis>cannot</emphasis> determine the actual value of the symbol, the
|
|
|
|
|
|
GOT entry may contain the address of an entry in the procedure linkage
|
|
|
|
|
|
table. The link editor creates that entry in the procedure linkage table
|
|
|
|
|
|
and stores that address in the GOT entry. This permits lazy resolution of
|
|
|
|
|
|
function symbols at run time. If the link editor
|
|
|
|
|
|
<emphasis>can</emphasis> determine the value of the symbol, it stores that
|
|
|
|
|
|
value in the corresponding GOT entry. The link editor may generate an
|
|
|
|
|
|
R_PPC64_GLOB_DAT relocation as usual.</para>
|
|
|
|
|
|
<para>R_PPC64_PLTREL32, R_PPC64_PLTREL64</para>
|
|
|
|
|
|
<para>These relocations indicate that reference to a symbol should be
|
|
|
|
|
|
resolved through a call to the symbol’s procedure linkage table entry.
|
|
|
|
|
|
Additionally, it instructs the link editor to build a procedure linkage
|
|
|
|
|
|
table for the executable or shared object if one is not created.</para>
|
|
|
|
|
|
<para><anchor xml:id="dbdoclet.50655241_R_PPC_COPY" xreflabel="" />R_PPC64_COPY</para>
|
|
|
|
|
|
<para>This relocation type is created by the link editor for dynamic
|
|
|
|
|
|
linking. Its offset member refers to a location in a writable segment.
|
|
|
|
|
|
The symbol table index specifies a symbol that should exist both in the
|
|
|
|
|
|
current relocatable file and in a shared object file. During execution,
|
|
|
|
|
|
the dynamic linker copies data associated with the shared object’s symbol
|
|
|
|
|
|
to the location specified by the offset.</para>
|
|
|
|
|
|
<para>R_PPC64_GLOB_DAT</para>
|
|
|
|
|
|
<para>This relocation type allows determination of the correspondence
|
|
|
|
|
|
between symbols and GOT entries. It is similar to R_PPC64_ADDR64.
|
|
|
|
|
|
However, it sets a GOT entry to the address of the specified
|
|
|
|
|
|
symbol.</para>
|
|
|
|
|
|
<para>R_PPC64_JMP_SLOT</para>
|
|
|
|
|
|
<para>This relocation type is created by the link editor for dynamic
|
|
|
|
|
|
linking. Its offset member gives the location of a procedure linkage
|
|
|
|
|
|
table (PLT) entry. The dynamic linker modifies the PLT entry to transfer
|
|
|
|
|
|
control to the designated symbol’s address (see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655242_20388" />).</para>
|
|
|
|
|
|
<para>R_PPC64_RELATIVE</para>
|
|
|
|
|
|
<para>This relocation type is created by the link editor for dynamic
|
|
|
|
|
|
linking. Its offset member gives a location within a shared object that
|
|
|
|
|
|
contains a value representing a relative address. The corresponding
|
|
|
|
|
|
virtual address is computed by the dynamic linker. It adds the virtual
|
|
|
|
|
|
address at which the shared object was loaded to the relative address.
|
|
|
|
|
|
Relocation entries for this type must specify 0 for the symbol table
|
|
|
|
|
|
index.</para>
|
|
|
|
|
|
<para>R_PPC64_IRELATIVE</para>
|
|
|
|
|
|
<para>The link editor creates this relocation type for dynamic linking.
|
|
|
|
|
|
Its addend member specifies the global entry-point location of a resolver
|
|
|
|
|
|
function returning a function pointer. It is used to implement the
|
|
|
|
|
|
STT_GNU_IFUNC framework. The resolver is called, and the returned pointer
|
|
|
|
|
|
copied into the location specified by the relocation offset
|
|
|
|
|
|
member.</para>
|
|
|
|
|
|
<para>R_PPC64_TLS, R_PPC64_TLSGD, R_PPC64_TLSLD</para>
|
|
|
|
|
|
<para>Used as markers on thread local storage (TLS) code sequences, these
|
|
|
|
|
|
relocations tie the entire sequence with a particular TLS symbol. For
|
|
|
|
|
|
more information, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90241" />.</para>
|
|
|
|
|
|
<para>R_PPC64_TOCSAVE</para>
|
|
|
|
|
|
<para>This relocation type indicates a position where a TOC save may be
|
|
|
|
|
|
inserted in the function to avoid a TOC save as part of the PLT stub
|
|
|
|
|
|
code. A nop can be emitted by a compiler in a function's prologue code. A
|
|
|
|
|
|
link editor can change it to a TOC pointer save instruction. This marker
|
|
|
|
|
|
relocation is placed on the prologue nop and on nops after bl
|
|
|
|
|
|
instructions, with the symbol plus addend pointing to the prologue nop.
|
|
|
|
|
|
If the link editor uses the prologue to save r2, it may omit r2 saves in
|
|
|
|
|
|
the PLT call stub code emitted for calls marked by
|
|
|
|
|
|
R_PPC64_TOCSAVE.</para>
|
|
|
|
|
|
<para>R_PPC64_UADDR*</para>
|
|
|
|
|
|
<para>These relocation types are the same as the corresponding
|
|
|
|
|
|
R_PPC64_ADDR* types, except that the datum to be relocated is allowed to
|
|
|
|
|
|
be unaligned.</para>
|
|
|
|
|
|
<para>R_PPC64_ADDR64_LOCAL</para>
|
|
|
|
|
|
<para>When a separate local entry point exists, this relocation type is
|
|
|
|
|
|
used to initialize a memory location with the address of that local entry
|
|
|
|
|
|
point.</para>
|
|
|
|
|
|
<para>R_PPC64_REL24_NOTOC</para>
|
|
|
|
|
|
<para>This relocation type is used to specify a function call where the
|
|
|
|
|
|
TOC pointer is not initialized. It is similar to R_PPC64_REL24 in that it
|
|
|
|
|
|
specifies a symbol to be resolved. However, if the symbol is resolved by
|
|
|
|
|
|
inserting a call to a PLT stub code, the PLT stub code must not rely on
|
|
|
|
|
|
the presence of a valid TOC base address in TOC register r2 to reference
|
|
|
|
|
|
the PLT function table.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Assembler Syntax</title>
|
|
|
|
|
|
<para>The offset from .TOC. in the GOT where the value of the symbol is
|
|
|
|
|
|
stored is given by the assembly syntax symbol@got. The value of the
|
|
|
|
|
|
symbol alone is the address of the variable named symbol.</para>
|
|
|
|
|
|
<para>For example:</para>
|
|
|
|
|
|
<programlisting>addis r3, r2,x@got@ha
|
|
|
|
|
|
ld r3,x@got@l(r3)</programlisting>
|
|
|
|
|
|
<para>Although the Power ISA only defines 16-bit displacements, many TOCs
|
|
|
|
|
|
(and hence a GOT) are larger then 64 KB but fit within 2 GB, which can be
|
|
|
|
|
|
addressed with 32-bit offsets from r2. Therefore, this ABI defines a
|
|
|
|
|
|
simple syntax for 32-bit offsets to the GOT.</para>
|
|
|
|
|
|
<para>The syntaxes SYMBOL@got@ha, SYMBOL@got@h, and SYMBOL@got@l refer to
|
|
|
|
|
|
the high adjusted, high, and low parts of the GOT offset. (For an
|
|
|
|
|
|
explanation of the meaning of “high adjusted,” see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_18894" />). SYMBOL@got@ha corresponds to
|
|
|
|
|
|
bits 32 - 63 of the offset within the global offset table with adjustment
|
|
|
|
|
|
for the sign extension of the low-order offset bits. SYMBOL@got@l
|
|
|
|
|
|
corresponds to the 16 low-order bits of the offset within the global
|
|
|
|
|
|
offset table.</para>
|
|
|
|
|
|
<para>The syntax SYMBOL@toc refers to the value (SYMBOL - .TOC.), where
|
|
|
|
|
|
.TOC. represents the TOC base for the current object file. This provides
|
|
|
|
|
|
the address of the variable whose name is SYMBOL as an offset from the
|
|
|
|
|
|
TOC base.</para>
|
|
|
|
|
|
<para>As with the GOT, the syntaxes SYMBOL@toc@ha, SYMBOL@toc@h, and
|
|
|
|
|
|
SYMBOL@toc@l refer to the high adjusted, high, and low parts of the TOC
|
|
|
|
|
|
offset.</para>
|
|
|
|
|
|
<para>The syntax SYMBOL@got@plt may be used to refer to the offset in the
|
|
|
|
|
|
TOC of a procedure linkage table entry stored in the global offset table.
|
|
|
|
|
|
The corresponding syntaxes SYMBOL@got@plt@ha, SYMBOL@got@plt@h, and
|
|
|
|
|
|
SYMBOL@got@plt@l are also defined.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<note>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
If X is a variable stored in the TOC,
|
|
|
|
|
|
then X@got is the offset within the TOC of a doubleword whose
|
|
|
|
|
|
value is X@toc.</para>
|
|
|
|
|
|
</note>
|
|
|
|
|
|
<para>The special symbol .TOC. is used to represent the TOC base for the
|
|
|
|
|
|
current object file.</para>
|
|
|
|
|
|
<para>The following code might appear in a PIC code setup sequence to
|
|
|
|
|
|
compute the distance from a function entry point to the TOC base:</para>
|
|
|
|
|
|
<programlisting>addis 2,12,.TOC.-func@ha
|
|
|
|
|
|
addi 2,2,.TOC.-func@l</programlisting>
|
|
|
|
|
|
<para>The syntax
|
|
|
|
|
|
<literal>SYMBOL@localentry</literal> refers to the value of the local
|
|
|
|
|
|
entry point associated with a function symbol. It can be used to
|
|
|
|
|
|
initialize a memory word with the address of the local entry point as
|
|
|
|
|
|
follows:</para>
|
|
|
|
|
|
<programlisting>.quad func@localentry</programlisting>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Assembler- and Linker-Mediated Executable Optimization</title>
|
|
|
|
|
|
<para>To optimize object code, the assembler and linker may rewrite object
|
|
|
|
|
|
code to implement the function call and return conventions and access to
|
|
|
|
|
|
global and thread-local data. It is the responsibility of compilers and
|
|
|
|
|
|
programmers to generate assembly programs and objects that conform to the
|
|
|
|
|
|
requirements as indicated in this section.</para>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_69294">
|
|
|
|
|
|
<title>Function Call</title>
|
|
|
|
|
|
<para>The static linker must modify a nop instruction after a bl function
|
|
|
|
|
|
call to restore the TOC pointer in r2 from 24(r1) when an external symbol
|
|
|
|
|
|
that may use the TOC may be called, as in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655240_88555" />. Object files must contain a
|
|
|
|
|
|
nop slot after a bl instruction to an external symbol.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Reference Optimization</title>
|
|
|
|
|
|
<para>References to the GOT may be optimized by rewriting indirect
|
|
|
|
|
|
reference code to replace the reference by an address computation. This
|
|
|
|
|
|
transformation is only performed by the linker when the symbol is known
|
|
|
|
|
|
to be local to the module.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Displacement Optimization for TOC Pointer Relative
|
|
|
|
|
|
Accesses</title>
|
|
|
|
|
|
<para>Assemblers and linkers
|
|
|
|
|
|
<emphasis>may</emphasis> optimize TOC reference code that consists of two
|
|
|
|
|
|
instructions with equivalent code when offset@ha is 0.</para>
|
|
|
|
|
|
<para>TOC reference code:</para>
|
|
|
|
|
|
<programlisting>addis rt, r2, offset@ha
|
|
|
|
|
|
lwz rt, offset@l(rt)</programlisting>
|
|
|
|
|
|
<para>Equivalent code:</para>
|
|
|
|
|
|
<programlisting>NOP
|
|
|
|
|
|
lwz rt, offset(r2)</programlisting>
|
|
|
|
|
|
<para>Compilers and programmers
|
|
|
|
|
|
<emphasis>must</emphasis> ensure that r2 is live at the actual data access
|
|
|
|
|
|
point associated with extended displacement addressing.</para>
|
|
|
|
|
|
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_19147">
|
|
|
|
|
|
<title>TOC Pointer Usage</title>
|
|
|
|
|
|
<para>To enable linker-based optimizations when global data is accessed,
|
|
|
|
|
|
the TOC pointer needs to be available for dereference at the point of all
|
|
|
|
|
|
uses of values derived from the TOC pointer in conjunction with the @l
|
|
|
|
|
|
operator. This property is used by the linker to optimize TOC pointer
|
|
|
|
|
|
accesses. In addition, all reaching definitions for a TOC-pointer-derived
|
|
|
|
|
|
access must compute the same definition.</para>
|
|
|
|
|
|
<para>In some implementations, non-ABI-compliant code may be processed by
|
|
|
|
|
|
providing additional linker options; for example, linker options
|
|
|
|
|
|
disabling linker optimization. However, this behavior in support of
|
|
|
|
|
|
non-ABI-compliant code is not guaranteed to be portable and supported in
|
|
|
|
|
|
all systems.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<bridgehead>Compliant example</bridgehead>
|
|
|
|
|
|
<programlisting> addis r4, r2, mysym@toc@ha
|
|
|
|
|
|
b target
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
...
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
addis r4, r2, mysym@toc@ha
|
|
|
|
|
|
target:
|
|
|
|
|
|
addi r4, r4, mysym@toc@l
|
|
|
|
|
|
...</programlisting>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<bridgehead>Non-compliant example</bridgehead>
|
|
|
|
|
|
<programlisting> li r4, 0 ; #d1
|
|
|
|
|
|
b target
|
|
|
|
|
|
|
|
|
|
|
|
...
|
|
|
|
|
|
|
|
|
|
|
|
addis r4, r2, mysym@toc@ha ; #d2
|
|
|
|
|
|
target:
|
|
|
|
|
|
addi r4, r4, mysym@toc@l ; incompatible definitions #d1 and #d2 reach this
|
|
|
|
|
|
...</programlisting>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Table Jump Sequences</title>
|
|
|
|
|
|
<para>Some linkers may rewrite jump table sequences, as described in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655240_47036" />. For example, linkers may
|
|
|
|
|
|
rewrite address references created using GOT-indirect loads and bl+4
|
|
|
|
|
|
sequences to use TOC-relative address computation.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Fusion</title>
|
|
|
|
|
|
<para>Code generation in compilers, linkers, and by programmers should
|
|
|
|
|
|
use a destructive sequence of two sequential instructions consisting of
|
|
|
|
|
|
first an addis followed by a second instruction using a D form
|
|
|
|
|
|
instruction to create or load from a 32-bit offset from a register to
|
|
|
|
|
|
enable hardware fusion whenever possible:</para>
|
|
|
|
|
|
<programlisting>addis r4, r3, upper
|
|
|
|
|
|
<lbz,lhz,lwz,ld> r4, lower(r4)
|
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|
|
|
|
|
|
|
|
|
|
addis r4, r3, upper
|
|
|
|
|
|
addi r4, r4, lower</programlisting>
|
|
|
|
|
|
<para>It is encouraged that assemblers provide pseudo-ops to facilitate
|
|
|
|
|
|
such code generation with a single assembler mnemonic.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Thread-Local Linker Optimizations</title>
|
|
|
|
|
|
<para>Additional code rewriting is performed by the linker in conjunction
|
|
|
|
|
|
with the use of thread-local storage described in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_61284" />.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_90241">
|
|
|
|
|
|
<title>Thread Local Storage ABI</title>
|
|
|
|
|
|
<para>The
|
|
|
|
|
|
<citetitle>ELF Handling for Thread-Local Storage</citetitle> document is the
|
|
|
|
|
|
authoritative TLS ABI specification that defines the context in which
|
|
|
|
|
|
information in the TLS section of this Power Architecture 64-bit ELF V2 ABI
|
|
|
|
|
|
must be viewed. For information about how to access this document, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655239___RefHeading___Toc377640569" />. To
|
|
|
|
|
|
maintain congruence with that document, in this section the term module
|
|
|
|
|
|
refers to an executable or shared object since both are treated
|
|
|
|
|
|
similarly.</para>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>TLS Background</title>
|
|
|
|
|
|
<para>Most C/C++ implementations support (as an extension to earlier
|
|
|
|
|
|
versions of the language) the keyword __thread to be used as a
|
|
|
|
|
|
storage-class specifier in variable declarations and definitions of data
|
|
|
|
|
|
objects with thread storage duration. (The 2011 ISO C Standard uses
|
|
|
|
|
|
_Thread_local as the keyword, while the 2011 ISO C++ Standard uses
|
|
|
|
|
|
thread_local.) A variable declared in this manner is automatically
|
|
|
|
|
|
allocated local to each thread. Its lifetime is defined to be the entire
|
|
|
|
|
|
execution of the thread. Any initialization value is assigned once before
|
|
|
|
|
|
thread startup.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_50444">
|
|
|
|
|
|
<title>TLS Runtime Handling</title>
|
|
|
|
|
|
<para>A thread-local variable is completely identified by the module in
|
|
|
|
|
|
which it is defined, along with the offset of the variable relative to
|
|
|
|
|
|
the start of the TLS block for the module. A module is referenced by its
|
|
|
|
|
|
index (an integer starting with 1, which is assigned by the run-time
|
|
|
|
|
|
environment) into the dynamic thread vector (DTV). The offset of the
|
|
|
|
|
|
variable is kept in the st_value field of the TLS variable’s symbol table
|
|
|
|
|
|
entry.</para>
|
|
|
|
|
|
<para>The TLS data structures follow variant I of the ELF TLS ABI. For
|
|
|
|
|
|
the 64-bit PowerPC Architecture, the specific organization of the data
|
|
|
|
|
|
structures is as follows.</para>
|
|
|
|
|
|
<para>The thread control block (TCB) consists of the DTV, which is an
|
|
|
|
|
|
8-byte pointer. An extended TCB may have additional
|
|
|
|
|
|
implementation-specific fields; these fields are located
|
|
|
|
|
|
<emphasis>before</emphasis> the DTV pointer because the addresses are
|
|
|
|
|
|
computed as negative offsets from the TCB address. The fields must never
|
|
|
|
|
|
be rearranged for any reason.</para>
|
|
|
|
|
|
<para>The current glibc extended TCB is:</para>
|
|
|
|
|
|
<programlisting>typedef struct {
|
|
|
|
|
|
/* Reservation for HWCAP data. */
|
|
|
|
|
|
unsigned int hwcap2;
|
|
|
|
|
|
unsigned int hwcap; /* not used in LE ABI */
|
|
|
|
|
|
|
|
|
|
|
|
/* Indicate if HTM capable (ISA 2.07). */
|
|
|
|
|
|
int tm_capable;
|
|
|
|
|
|
int tm_pad;
|
|
|
|
|
|
|
|
|
|
|
|
/* Reservation for dynamic system optimizer ABI. */
|
|
|
|
|
|
uintptr_t dso_slot2;
|
|
|
|
|
|
uintptr_t dso_slot1;
|
|
|
|
|
|
|
|
|
|
|
|
/* Reservation for tar register (ISA 2.07). */
|
|
|
|
|
|
uintptr_t tar_save;
|
|
|
|
|
|
|
|
|
|
|
|
/* GCC split stack support. */
|
|
|
|
|
|
void *__private_ss;
|
|
|
|
|
|
|
|
|
|
|
|
/* Reservation for the event-based branching ABI. */
|
|
|
|
|
|
uintptr_t ebb_handler;
|
|
|
|
|
|
uintptr_t ebb_ctx_pointer;
|
|
|
|
|
|
uintptr_t ebb_reserved1;
|
|
|
|
|
|
uintptr_t ebb_reserved2;
|
|
|
|
|
|
uintptr_t pointer_guard;
|
|
|
|
|
|
|
|
|
|
|
|
/* Reservation for stack guard */
|
|
|
|
|
|
uintptr_t stack_guard;
|
|
|
|
|
|
|
|
|
|
|
|
/* DTV pointer */
|
|
|
|
|
|
dtv_t *dtv;
|
|
|
|
|
|
} tcbhead_t;</programlisting>
|
|
|
|
|
|
<para>Modules that will not be unloaded will be present at startup time;
|
|
|
|
|
|
the TLS blocks for these are created consecutively and immediately follow
|
|
|
|
|
|
the TCB. The offset of the TLS block of an initially available module
|
|
|
|
|
|
from the TCB remains fixed after program start.</para>
|
|
|
|
|
|
<para>The tlsoffset(m) values for a module with index m, where m ranges 1
|
|
|
|
|
|
- M, M being the total number of modules, are computed as follows:</para>
|
|
|
|
|
|
<programlisting>tlsoffset(1) = round(16, align(1))
|
|
|
|
|
|
tlsoffset(m + 1) = round(tlsoffset(m) + tlssize(m), align(m + 1))</programlisting>
|
|
|
|
|
|
<itemizedlist>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>The function round( ) returns its first argument rounded up to
|
|
|
|
|
|
the next multiple of its second argument:</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
<programlisting>round(x, y) = y × ceiling(x / y)</programlisting>
|
|
|
|
|
|
<itemizedlist>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>The function ceiling( ) returns the smallest integer greater
|
|
|
|
|
|
than or equal to its argument, where n is an integer satisfying: n -
|
|
|
|
|
|
1 < x ≤ n:</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
<programlisting>ceiling(x) = n</programlisting>
|
|
|
|
|
|
<para>In the case of dynamic shared objects (DSO), TLS blocks are
|
|
|
|
|
|
allocated on an as-needed basis, with the details of allocation
|
|
|
|
|
|
abstracted away by the __tls_get_addr( ) function, which is used to
|
|
|
|
|
|
retrieve the address of any TLS variable.</para>
|
|
|
|
|
|
<para>The prototype for the __tls_get_addr( ) function, is defined as
|
|
|
|
|
|
follows.</para>
|
|
|
|
|
|
<programlisting>typedef struct
|
|
|
|
|
|
{
|
|
|
|
|
|
unsigned long int ti_module;
|
|
|
|
|
|
unsigned long int ti_offset;
|
|
|
|
|
|
} tls_index;
|
|
|
|
|
|
|
|
|
|
|
|
extern void *__tls_get_addr (tls_index *ti);</programlisting>
|
|
|
|
|
|
<para>The thread pointer (TP) is held in r13 and is used to access the
|
|
|
|
|
|
TCB. The TP is initialized to point 0x7000 bytes past the end of the TCB.
|
|
|
|
|
|
The TP offset allows for efficient addressing of the TCB and up to 4 KB -
|
|
|
|
|
|
8 B of other thread library information (placed before the TCB).</para>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_11666" /> shows the region of memory
|
|
|
|
|
|
before and after the TCB that can be efficiently addressed by the
|
|
|
|
|
|
TP.</para>
|
|
|
|
|
|
<figure pgwide="1" xml:id="dbdoclet.50655241_11666">
|
|
|
|
|
|
<title>Thread Pointer Addressable Memory</title>
|
|
|
|
|
|
<mediaobject>
|
|
|
|
|
|
<imageobject>
|
|
|
|
|
|
<imagedata fileref="figures/fig3-1.png" format="PNG"
|
|
|
|
|
|
scalefit="1" width="100%" />
|
|
|
|
|
|
</imageobject>
|
|
|
|
|
|
</mediaobject>
|
|
|
|
|
|
</figure>
|
|
|
|
|
|
<para>Each DTV pointer points 0x8000 bytes past the start of each TLS
|
|
|
|
|
|
block. (For implementation reasons, the actual value stored in the DTV
|
|
|
|
|
|
may point to the start of a TLS block. However, values returned by
|
|
|
|
|
|
accessor functions will be offset by 0x8000 bytes.) This offset allows
|
|
|
|
|
|
the first 64 KB of each block to be addressed from a DTV pointer using
|
|
|
|
|
|
fewer machine instructions.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<figure pgwide="1" xml:id="dbdoclet.50655241_25002">
|
|
|
|
|
|
<title>TLS Block Diagram</title>
|
|
|
|
|
|
<mediaobject>
|
|
|
|
|
|
<imageobject>
|
|
|
|
|
|
<imagedata fileref="figures/fig3-2.png" format="PNG"
|
|
|
|
|
|
scalefit="1" width="100%" />
|
|
|
|
|
|
</imageobject>
|
|
|
|
|
|
</mediaobject>
|
|
|
|
|
|
</figure>
|
|
|
|
|
|
<para>TLS[m] denotes the TLS block for the module with index m. DTV[m]
|
|
|
|
|
|
denotes the DTV pointer for the module with index m.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>TLS Access Models</title>
|
|
|
|
|
|
<para>TLS data access is categorized into the following models:</para>
|
|
|
|
|
|
<itemizedlist>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>General Dynamic TLS Model</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Local Dynamic TLS Model</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Initial Exec TLS Model</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Local Exec TLS Model</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
<para>Examples for each access model are provided in the following TLS
|
|
|
|
|
|
Model subsections.</para>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>General Dynamic TLS Model</title>
|
|
|
|
|
|
<note>
|
|
|
|
|
|
<para>This specification provides examples based on the medium
|
|
|
|
|
|
code model, which is the default for the ELF V2 ABI.</para>
|
|
|
|
|
|
</note>
|
|
|
|
|
|
<para>Given the following code fragment, to determine the address of a
|
|
|
|
|
|
thread-local variable x, the __tls_get_addr( ) function is called with one
|
|
|
|
|
|
parameter. That parameter is a pointer to a data object of type
|
|
|
|
|
|
tls_index.</para>
|
|
|
|
|
|
<programlisting>extern __thread unsigned int x;
|
|
|
|
|
|
&x;</programlisting>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General Dynamic Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r2, x@got@tlsgd@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, x@got@tlsgd@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry morerows="1">
|
|
|
|
|
|
<para>bl __tls_get_addr(x@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSGD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>__tls_get_addr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General Dynamic GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n+1]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The relocation specifier @got@tlsgd causes the link editor to
|
|
|
|
|
|
create a data object of type tls_index in the GOT. The address of this
|
|
|
|
|
|
data object is loaded into the first argument register with the addis and
|
|
|
|
|
|
addi instruction, and a standard function call is made. Notice that the
|
|
|
|
|
|
bl instruction has two relocations: the R_PPC64_TLSGD tying it to the
|
|
|
|
|
|
argument setup instructions and the R_PPC64_REL24 specifying the call
|
|
|
|
|
|
destination.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Local Dynamic TLS Model</title>
|
|
|
|
|
|
<para>For the Local Dynamic TLS Model, three different relocation
|
|
|
|
|
|
sequences may be used, depending on the size of the thread storage block
|
|
|
|
|
|
offset to the variable. For the following code sequence, a different
|
|
|
|
|
|
relocation sequence is used for each variable.</para>
|
|
|
|
|
|
<programlisting>static __thread unsigned int x1;
|
|
|
|
|
|
static __thread unsigned int x2;
|
|
|
|
|
|
static __thread unsigned int x3;
|
|
|
|
|
|
&x1;
|
|
|
|
|
|
&x2;
|
|
|
|
|
|
&x3;</programlisting>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_45768">
|
|
|
|
|
|
<title>Local Dynamic Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r2, x1@got@tlsld@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, x1@got@tlsld@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>bl __tls_get_addr(x1@tlsld)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSLD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>__tls_get_addr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r3, x1@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r3, x2@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r9, x2@dtprel@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x3@got@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x3@got@dtprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>add r9, r9, r3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Local Dynamic GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n+1]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>0</para>
|
|
|
|
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|
</entry>
|
|
|
|
|
|
<entry>
|
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|
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|
|
<para> </para>
|
|
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|
|
|
</entry>
|
|
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|
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|
</row>
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|
<row>
|
|
|
|
|
|
<entry>
|
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|
|
<para>GOT[m]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The relocation specifier @got@tlsld in the first instruction causes
|
|
|
|
|
|
the link editor to generate a tls_index data object in the GOT with a
|
|
|
|
|
|
fixed 0 offset. The following code assumes that x1 is in the first 64 KB
|
|
|
|
|
|
of the thread storage block. The x2 symbol is not within the first 64 KB
|
|
|
|
|
|
but is within the first 2 GB, and x3 is outside the 2 GB area. To load
|
|
|
|
|
|
the values of x1, x2, and x3 instead of their addresses, replace the
|
|
|
|
|
|
latter part of
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_45768" /> with the following code
|
|
|
|
|
|
sequence.</para>
|
|
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|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_48794">
|
|
|
|
|
|
<title>Local Dynamic Relocations with Values Loaded</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
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|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
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|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
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|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
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|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lwz r0, x1@dtprel(r3)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r3, x2@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lwz r0, x2@dtprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x3@got@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x3@got@dtprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lwzx r0, r3, r9</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Initial Exec TLS Model</title>
|
|
|
|
|
|
<para>Given the following code fragment, the relocation sequence in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_17435" /> is used for the Initial Exec
|
|
|
|
|
|
TLS Model:</para>
|
|
|
|
|
|
<programlisting>extern __thread unsigned int x;
|
|
|
|
|
|
&x;</programlisting>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_17435">
|
|
|
|
|
|
<title>Initial Exec Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x@got@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x@got@tprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>add r9, r9, x@tls</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial Exec GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The relocation specifier @got@tprel in the first instruction causes
|
|
|
|
|
|
the link editor to generate a GOT entry with a relocation that the
|
|
|
|
|
|
dynamic linker will replace with the offset for x relative to the thread
|
|
|
|
|
|
pointer. The relocation specifier x@tls tells the assembler to use an r13
|
|
|
|
|
|
form of the instruction. That is, add r9,r9,r13 in this case, and tag the
|
|
|
|
|
|
instruction with a relocation that indicates it belongs to a TLS
|
|
|
|
|
|
sequence. This relocation specifier can be used later by the link editor
|
|
|
|
|
|
when optimizing TLS code.</para>
|
|
|
|
|
|
<para>To read the contents of the variable instead of calculating its
|
|
|
|
|
|
address, the add r9, r9, x@tls instruction might be replaced with lwzx
|
|
|
|
|
|
r0, r9, x@tls.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Local Exec TLS Model</title>
|
|
|
|
|
|
<para>Given the following code fragment, three different relocation
|
|
|
|
|
|
sequences may be used, depending on the size of the offset to the
|
|
|
|
|
|
variable. The sequence in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_45954" /> handles offsets within 60 KB
|
|
|
|
|
|
relative to the end of the TCB (where r13 points 28 KB past the end of
|
|
|
|
|
|
the TCB, which is immediately before the first TLS block). The sequence
|
|
|
|
|
|
in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_47421" /> handles offsets past 60 KB and
|
|
|
|
|
|
less than 2 GB + 28 KB relative to the end of the TCB. The third sequence
|
|
|
|
|
|
is identical to the Initial Exec sequence shown in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_17435" />.</para>
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|
<programlisting>static __thread unsigned int x;
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|
|
&x;</programlisting>
|
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|
|
<para><xref linkend="dbdoclet.50655241_51121" /> illustrates which sequence is
|
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|
|
used.</para>
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<para> </para>
|
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|
<figure pgwide="1" xml:id="dbdoclet.50655241_51121">
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|
|
<title>Local Exec TLS Model Sequences</title>
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|
<mediaobject>
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<imageobject>
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<imagedata fileref="figures/fig3-3.png" format="PNG"
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|
scalefit="1" width="100%" />
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</imageobject>
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</mediaobject>
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</figure>
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|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_45954">
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|
|
<title>Local Exec Initial Relocations (Sequence 1)</title>
|
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|
|
<tgroup cols="3">
|
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|
<colspec colname="c1" colwidth="33*" />
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<colspec colname="c2" colwidth="33*" />
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<colspec colname="c3" colwidth="33*" />
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<thead>
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<row>
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|
<entry>
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<para>
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|
|
<emphasis role="bold">Code Sequence</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Relocation</emphasis>
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</para>
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</entry>
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<entry>
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<para>
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<emphasis role="bold">Symbol</emphasis>
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</para>
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</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>
|
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<para>addi r9, r13, x1@tprel</para>
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</entry>
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<entry>
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|
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<para>R_PPC_TPREL16</para>
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</entry>
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<entry>
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<para>x</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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|
<para> </para>
|
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|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_47421">
|
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|
|
|
<title>Local Exec Initial Relocations (Sequence 2)</title>
|
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|
|
<tgroup cols="3">
|
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|
|
|
<colspec colname="c1" colwidth="33*" />
|
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|
|
<colspec colname="c2" colwidth="33*" />
|
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|
|
|
<colspec colname="c3" colwidth="33*" />
|
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|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
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|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
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|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
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|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
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|
|
</para>
|
|
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|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
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|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r13, x2@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r9, x2@tprel@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_61284">
|
|
|
|
|
|
<title>TLS Link Editor Optimizations</title>
|
|
|
|
|
|
<para>In some cases, the link editor may be able to optimize TLS code
|
|
|
|
|
|
sequences, provided the compiler emits code sequences as
|
|
|
|
|
|
described.</para>
|
|
|
|
|
|
<para>The following TLS link editor transformations are provided as
|
|
|
|
|
|
optimizations to convert between specific TLS access models:</para>
|
|
|
|
|
|
<itemizedlist>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>General Dynamic to Initial Exec</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>General Dynamic to Local Exec</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Local Dynamic to Local Exec</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
<listitem>
|
|
|
|
|
|
<para>Initial Exec to Local Exec</para>
|
|
|
|
|
|
</listitem>
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>General Dynamic to Initial Exec</title>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Initial-Exec Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r2, x@got@tlsgd@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, x@got@tlsgd@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry morerows="1">
|
|
|
|
|
|
<para>bl __tls_get_addr(x@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSGD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>__tls_get_addr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Initial-Exec GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n+1]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The preceding code and global offset table entries are replaced by
|
|
|
|
|
|
the following code and global offset table entries.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Initial-Exec Replacement Initial
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r2, x@got@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r3, x@got@tprel@l(r3)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>add r3, r3, r13</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Initial-Exec Replacement GOT Entry
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>General Dynamic to Local Exec</title>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Local-Exec Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r2, x@got@tlsgd@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, x@got@tlsgd@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSGD16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry morerows="1">
|
|
|
|
|
|
<para>bl __tls_get_addr(x@tlsgd)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSGD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>__tls_get_addr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_16273">
|
|
|
|
|
|
<title>General-Dynamic-to-Local-Exec GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n+1]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The preceding code and global offset table entries are replaced by
|
|
|
|
|
|
the following code, which makes no reference to GOT entries. The GOT
|
|
|
|
|
|
entries in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_16273" /> can be removed from the GOT by
|
|
|
|
|
|
the linker when performing this code transformation.<footnote xml:id="pgfId-1134055">
|
|
|
|
|
|
<para>To further optimize the code in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_16273" />, a linker may reschedule the
|
|
|
|
|
|
sequence to exploit fusion by generating a sequence that may be fused
|
|
|
|
|
|
by Power processors:</para>
|
|
|
|
|
|
<programlisting>nop
|
|
|
|
|
|
addis r3, r13, x@tprel@ha
|
|
|
|
|
|
addi r3, r3, x@tprel@l
|
|
|
|
|
|
nop</programlisting>
|
|
|
|
|
|
</footnote></para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>General-Dynamic-to-Local-Exec Replacement Initial
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r13, x@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, x@tprel@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Local Dynamic to Local Exec</title>
|
|
|
|
|
|
<para>Under this TLS linker optimization, the function call is replaced
|
|
|
|
|
|
with an equivalent code sequence. However, as shown in the following code
|
|
|
|
|
|
examples, the dtprel sequences are left unchanged.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_56118">
|
|
|
|
|
|
<title>Local-Dynamic-to-Local-Exec Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
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|
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<colspec colname="c2" colwidth="33*" />
|
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|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
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|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
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|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
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|
|
|
</para>
|
|
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|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
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<para>
|
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|
|
|
<emphasis role="bold">Symbol</emphasis>
|
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|
</para>
|
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|
|
</entry>
|
|
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|
|
</row>
|
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</thead>
|
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|
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|
|
<tbody>
|
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|
|
|
<row>
|
|
|
|
|
|
<entry>
|
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|
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<para>addis r3, r2, x1@got@tlsld@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
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|
<para>x1</para>
|
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|
</entry>
|
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|
</row>
|
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|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
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|
|
<para>addi r3, r3, x1@got@tlsld@l</para>
|
|
|
|
|
|
</entry>
|
|
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|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TLSLD16_LO</para>
|
|
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|
|
|
</entry>
|
|
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|
|
<entry>
|
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|
|
|
|
<para>x1</para>
|
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</entry>
|
|
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|
</row>
|
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|
|
<row>
|
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|
|
<entry>
|
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|
|
<para>bl __tls_get_addr(x1@tlsld)</para>
|
|
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|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLSLD</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_REL24</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>__tls_get_addr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r3, x1@dtprel</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r3, x2@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r9, x2@dtprel@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x2</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x3@got@dtprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x3@got@dtprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_DTPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>add r9, r9, r3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Local-Dynamic-to-Local-Exec GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPMOD64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n+1]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>...</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[m]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<para>The preceding code and global offset table entries are replaced by
|
|
|
|
|
|
the following code and global offset table entries.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Local-Dynamic-to-Local-Exec Replacement Initial
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r3, r13, L@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>link editor generated local symbol</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r3, r3, L@tprel@l</para>
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</entry>
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<entry>
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<para>R_PPC64_TPREL16_LO</para>
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</entry>
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<entry>
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<para>link editor generated local symbol
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<emphasis>
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<xref linkend="dbdoclet.50655241_21152"
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xrefstyle="select: nopage" />
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</emphasis></para>
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</entry>
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</row>
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<row>
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<entry>
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<para>..</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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</row>
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<row>
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<entry>
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<para>addi r9, r3, x1@dtprel</para>
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</entry>
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<entry>
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<para>R_PPC64_DTPREL16</para>
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</entry>
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<entry>
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<para>x1</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>..</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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</row>
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<row>
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<entry>
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<para>addis r9, r3, x2@dtprel@ha</para>
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</entry>
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<entry>
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<para>R_PPC64_DTPREL16_HA</para>
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</entry>
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<entry>
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<para>x2</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>addi r9, r9, x2@dtprel@l</para>
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</entry>
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<entry>
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<para>R_PPC64_DTPREL16_LO</para>
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</entry>
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<entry>
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<para>x2</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>...</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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</row>
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<row>
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<entry>
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<para>addis r9, r2, x3@got@dtprel@ha</para>
|
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</entry>
|
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<entry>
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<para>R_PPC64_GOT_DTPREL16_HA</para>
|
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</entry>
|
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<entry>
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<para>x3</para>
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</entry>
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</row>
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<row>
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<entry>
|
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<para>ld r9, x3@got@dtprel@l(r9)</para>
|
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|
</entry>
|
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|
<entry>
|
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|
<para>R_PPC64_GOT_DTPREL16_LO_DS</para>
|
|
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|
|
</entry>
|
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|
<entry>
|
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|
<para>x3</para>
|
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|
</entry>
|
|
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</row>
|
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|
<row>
|
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|
<entry>
|
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|
<para>add r9, r9, r3</para>
|
|
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|
|
</entry>
|
|
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|
|
<entry>
|
|
|
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|
|
<para> </para>
|
|
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|
</entry>
|
|
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|
<entry>
|
|
|
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|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
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|
|
</row>
|
|
|
|
|
|
<row>
|
|
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|
|
<entry nameend="c3" namest="c1">
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<orderedlist>
|
|
|
|
|
|
<listitem xml:id="dbdoclet.50655241_21152">
|
|
|
|
|
|
<para>The linker may prefer to schedule the addis and
|
|
|
|
|
|
addi to be adjacent to take advantage of fusion as a
|
|
|
|
|
|
microarchitecture optimization opportunity.</para>
|
|
|
|
|
|
</listitem>
|
|
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|
|
|
</orderedlist>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The GOT[n] and GOT[n+1] entries can be removed by the linker after
|
|
|
|
|
|
the code transformation as shown in
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_90771" />.</para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_90771">
|
|
|
|
|
|
<title>Local-Dynamic-to-Local-Exec Replacement GOT Entry
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[m]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_DTPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x3</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The local symbol generated by the link editor points to the start
|
|
|
|
|
|
of the thread storage block plus 0x7000 bytes. In practice, a section
|
|
|
|
|
|
symbol with a suitable offset will be used.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Initial Exec to Local Exec</title>
|
|
|
|
|
|
<para>This transformation is only performed by the linker when the symbol
|
|
|
|
|
|
is within 2 GB + 28 KB of the thread pointer.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x@got@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x@got@tprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>add r9, r9, x@tls</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The preceding code and global offset table entries are replaced by
|
|
|
|
|
|
the following code and global offset table entries.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec Replacement Initial
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Code Sequence</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Relocation</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Symbol</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r13, x@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r9, r9, x@tprel@l</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>Other sizes and types of thread-local variables may use any of the
|
|
|
|
|
|
X-form indexed load or store instructions.</para>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_81882" /> shows how to access the
|
|
|
|
|
|
contents of a variable using the X-form indexed load and store
|
|
|
|
|
|
instructions.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1" xml:id="dbdoclet.50655241_81882">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec X-form Initial Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r2, x@got@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>ld r9, x@got@tprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_GOT_TPREL16_LO_DS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lbzx r10, r9, x@tls</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r10, r10, 1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>stbx r10, r9, x@tls</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec X-form GOT Entry Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>GOT[n]</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL64</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<para>The preceding code and global offset table entries are replaced by
|
|
|
|
|
|
the following code and global offset table entries.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<table frame="all" pgwide="1">
|
|
|
|
|
|
<title>Initial-Exec-to-Local-Exec X-form Replacement Initial
|
|
|
|
|
|
Relocations</title>
|
|
|
|
|
|
<tgroup cols="3">
|
|
|
|
|
|
<colspec colname="c1" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="33*" />
|
|
|
|
|
|
<colspec colname="c3" colwidth="33*" />
|
|
|
|
|
|
<thead>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Code Sequence</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Relocation</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<emphasis role="bold">Symbol</emphasis>
|
|
|
|
|
|
</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</thead>
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>nop</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addis r9, r13, x@tprel@ha</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_HA</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lbz r10, x@tprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>addi r10, r10, 1</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>stb r10, x@tprel@l(r9)</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>R_PPC64_TPREL16_LO</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>x</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>ELF TLS Definitions</title>
|
|
|
|
|
|
<para>The result of performing a relocation for a TLS symbol is the
|
|
|
|
|
|
module ID and its offset within the TLS block. These are then stored in
|
|
|
|
|
|
the GOT. Later, they are obtained by the dynamic linker at run-time and
|
|
|
|
|
|
passed to __tls_get_addr( ), which returns the address for the variable
|
|
|
|
|
|
for the current thread.</para>
|
|
|
|
|
|
<para>For more information, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_18894" />. For TLS relocations, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_47572" />.</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<bridgehead>TLS Relocation Descriptions</bridgehead>
|
|
|
|
|
|
<para>The following marker relocations tie together instructions in TLS
|
|
|
|
|
|
code sequences. They allow the link editor to reliably optimize TLS code.
|
|
|
|
|
|
R_PPC64_TLSGD and R_PPC64_TLSLD shall be emitted immediately before their
|
|
|
|
|
|
associated __tls_get_addr call relocation.</para>
|
|
|
|
|
|
<para>R_PPC64_TLS</para>
|
|
|
|
|
|
<para>R_PPC64_TLSGD</para>
|
|
|
|
|
|
<para>R_PPC64_TLSLD</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>System Support Functions and Extensions</title>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Back Chain</title>
|
|
|
|
|
|
<para>Systems must provide a back chain by default, and they must include
|
|
|
|
|
|
compilers allocating a back chain and system libraries allocating a back
|
|
|
|
|
|
chain. Alternate libraries may be supplied in addition to, and beyond,
|
|
|
|
|
|
but never instead of those providing a back chain. Code generating and
|
|
|
|
|
|
using a back chain shall be the default for compilers, linkers, and
|
|
|
|
|
|
library selection.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Nested Functions</title>
|
|
|
|
|
|
<para>Nested functions that access their ancestors’ stack frames are
|
|
|
|
|
|
entered with r11 initialized to an environment pointer. The environment
|
|
|
|
|
|
pointer is typically a copy of the stack pointer for the most recent
|
|
|
|
|
|
instance of the nested function's parent's stack frame. When a function
|
|
|
|
|
|
pointer to a nested function referencing its outer context is created, an
|
|
|
|
|
|
implementation may create a trampoline to load the present environment
|
|
|
|
|
|
pointer to r11, followed by an unconditional branch to the function code
|
|
|
|
|
|
of the nested function contained in the text segment.</para>
|
|
|
|
|
|
<para>When a trampoline is used, a pointer to a nested function is
|
|
|
|
|
|
represented by the code address of the trampoline.</para>
|
|
|
|
|
|
<para>In some environments, the trampoline code may be created by
|
|
|
|
|
|
allocating memory on the data stack, making at least pages containing
|
|
|
|
|
|
trampolines executable. In other environments, executable pages may be
|
|
|
|
|
|
prohibited in the stack area for security reasons.</para>
|
|
|
|
|
|
<para>Alternate implementations, such as creating code stacks for
|
|
|
|
|
|
allocating nested function trampolines, may be used. In garbage-collected
|
|
|
|
|
|
environments, yet other ways for managing trampolines are
|
|
|
|
|
|
available.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section>
|
|
|
|
|
|
<title>Traceback Tables</title>
|
|
|
|
|
|
<para>To support debuggers and exception handlers, the 64-bit
|
|
|
|
|
|
<citetitle>OpenPOWER ELF V2 ABI</citetitle> defines the use of descriptive
|
|
|
|
|
|
debug and unwind information that enables flexible debugging and
|
|
|
|
|
|
unwinding of optimized code (such as, for example, DWARF).</para>
|
|
|
|
|
|
<para>To support legacy tooling, the
|
|
|
|
|
|
<citetitle>OpenPOWER ELF V2 ABI</citetitle> also specifies the use of a
|
|
|
|
|
|
traceback table that may provide additional information about
|
|
|
|
|
|
functions.</para>
|
|
|
|
|
|
<para>
|
|
|
|
|
|
<xref linkend="dbdoclet.50655241_18645" /> describes a minimal set of
|
|
|
|
|
|
fields that may, optionally, specify information about a function.
|
|
|
|
|
|
Additional fields may be present in a traceback table in accordance with
|
|
|
|
|
|
commonly used PowerPC traceback conventions in other environments, but
|
|
|
|
|
|
they are not specified in the current ABI definition.</para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
<section xml:id="dbdoclet.50655241_18645">
|
|
|
|
|
|
<title>Traceback Table Fields</title>
|
|
|
|
|
|
<para>If a traceback table is present, the following fields are
|
|
|
|
|
|
mandatory:</para>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
<informaltable frame="none" rowsep="0" colsep="0">
|
|
|
|
|
|
<tgroup cols="2">
|
|
|
|
|
|
<colspec colname="c1" colwidth="15*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="85*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>version</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Eight-bit field. This defines the type code for the
|
|
|
|
|
|
table. The only currently defined value is zero.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>lang</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Eight-bit field. This defines the source language for the
|
|
|
|
|
|
compiler that generated the code to which this traceback table
|
|
|
|
|
|
applies. The default values are as follows:</para>
|
|
|
|
|
|
<informaltable frame="none" colsep="0" rowsep="0">
|
|
|
|
|
|
<tgroup cols="2">
|
|
|
|
|
|
<colspec colname="c1" colwidth="15*" />
|
|
|
|
|
|
<colspec colname="c2" colwidth="85*" />
|
|
|
|
|
|
<tbody>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>C</para></entry>
|
|
|
|
|
|
<entry><para>0</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Fortran</para></entry>
|
|
|
|
|
|
<entry><para>1</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Pascal</para></entry>
|
|
|
|
|
|
<entry><para>2</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Ada</para></entry>
|
|
|
|
|
|
<entry><para>3</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>PL/1</para></entry>
|
|
|
|
|
|
<entry><para>4</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Basic</para></entry>
|
|
|
|
|
|
<entry><para>5</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>LISP</para></entry>
|
|
|
|
|
|
<entry><para>6</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>COBOL</para></entry>
|
|
|
|
|
|
<entry><para>7</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Modula2</para></entry>
|
|
|
|
|
|
<entry><para>8</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>C++</para></entry>
|
|
|
|
|
|
<entry><para>9</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>RPG</para></entry>
|
|
|
|
|
|
<entry><para>10</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>PL.8, PLIX</para></entry>
|
|
|
|
|
|
<entry><para>11</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Assembly</para></entry>
|
|
|
|
|
|
<entry><para>12</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Java</para></entry>
|
|
|
|
|
|
<entry><para>13</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry><para>Objective C</para></entry>
|
|
|
|
|
|
<entry><para>14</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry nameend="c2" namest="c1">
|
|
|
|
|
|
<para>The codes 0xf - 0xfa are reserved. The codes
|
|
|
|
|
|
0xfb - 0xff are reserved for IBM.</para></entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>globalink</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if this routine is
|
|
|
|
|
|
a special routine used to support the linkage convention: a
|
|
|
|
|
|
linkage function including a procedure linkage table function,
|
|
|
|
|
|
pointer glue code, a trampoline, or other compiler- or
|
|
|
|
|
|
linker-generated functions that stack traceback functions
|
|
|
|
|
|
should skip, other than is_eprol functions. For more
|
|
|
|
|
|
information, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655240_88555" />. These routines have
|
|
|
|
|
|
an unusual register usage and stack format.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>is_eprol</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if this routine is
|
|
|
|
|
|
an out-of-line prologue or epilogue function, including a
|
|
|
|
|
|
register save or restore function. Stack traceback functions
|
|
|
|
|
|
should skip these. For more information, see
|
|
|
|
|
|
<xref linkend="dbdoclet.50655240_12107" />. These routines have
|
|
|
|
|
|
an unusual register usage and stack format.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>has_tboff</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the offset of
|
|
|
|
|
|
the traceback table from the start of the function is stored in
|
|
|
|
|
|
the tb_offset field.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>int_proc</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if this function is
|
|
|
|
|
|
a stackless leaf function that does not have a separate stack
|
|
|
|
|
|
frame.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>has_ctl</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if ctl_info is
|
|
|
|
|
|
provided.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>tocless</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if this function
|
|
|
|
|
|
does not have a TOC. For example, a stackless leaf assembly
|
|
|
|
|
|
language routine with no references to external objects.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>fp_present</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the function
|
|
|
|
|
|
uses floating-point processor instructions.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>log_abort</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. Reserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>int_handl</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. Reserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>name_present</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the name for the
|
|
|
|
|
|
procedure is present following the traceback field, as
|
|
|
|
|
|
determined by the name_len and name fields.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>uses_alloca</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the procedure
|
|
|
|
|
|
performs dynamic stack allocation. To address their local
|
|
|
|
|
|
variables, these procedures require a different register to
|
|
|
|
|
|
hold the stack pointer value. This register may be chosen by
|
|
|
|
|
|
the compiler, and must be indicated by setting the value of the
|
|
|
|
|
|
alloc_reg field.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>cl_dis_inv</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Three-bit field. Reserved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>saves_cr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field indicates whether the CR fields
|
|
|
|
|
|
are saved in the CR save word. If traceback tables are used in
|
|
|
|
|
|
place of DWARF unwind information, at least all volatile CR
|
|
|
|
|
|
fields must be saved in the CR save word.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>saves_lr</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the function
|
|
|
|
|
|
saves the LR in the LR save doubleword.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>stores_bc</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the function
|
|
|
|
|
|
saves the back chain (the SP of its caller) in the stack frame
|
|
|
|
|
|
header.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>fixup</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if the link editor
|
|
|
|
|
|
replaced the original instruction by a branch instruction to a
|
|
|
|
|
|
special fix-up instruction sequence.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>fp_saved</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Six-bit field. This field is set to the number of
|
|
|
|
|
|
nonvolatile floating-point registers that the function saves.
|
|
|
|
|
|
When traceback unwind and debug information is used, the last
|
|
|
|
|
|
register saved is always f31. Therefore, for example, a value
|
|
|
|
|
|
of 2 in this field indicates that f30 and f31 are saved.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
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|
<entry>
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<para>has_vec_info</para>
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</entry>
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|
<entry>
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|
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|
|
<para>One-bit field. This field is set to 1 if the procedure
|
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|
|
|
|
saves nonvolatile vector registers in the Vector Register Save
|
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|
|
|
|
Area, specifies the number of vector parameters, or uses VMX
|
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|
|
instructions.</para>
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</entry>
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|
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|
|
</row>
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|
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|
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|
<row>
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|
|
|
|
<entry>
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|
|
<para>spare4</para>
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|
|
</entry>
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|
|
<entry>
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|
<para>One-bit field. Reserved.</para>
|
|
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|
|
</entry>
|
|
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|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>gpr_saved</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Six-bit field. This field is set to the number of
|
|
|
|
|
|
nonvolatile general registers that the function saves. As with
|
|
|
|
|
|
fp_saved, when traceback unwind and debug information is used,
|
|
|
|
|
|
the last register saved is always r31.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>fixedparms</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Eight-bit field. This field is set to the number of
|
|
|
|
|
|
fixed-point parameters.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>floatparms</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>Seven-bit field. This field is set to the number of
|
|
|
|
|
|
floating-point parameters.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
<row>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>parmsonstk</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
<entry>
|
|
|
|
|
|
<para>One-bit field. This field is set to 1 if all of the
|
|
|
|
|
|
parameters are placed in the Parameter Save Area.</para>
|
|
|
|
|
|
</entry>
|
|
|
|
|
|
</row>
|
|
|
|
|
|
</tbody>
|
|
|
|
|
|
</tgroup>
|
|
|
|
|
|
</informaltable>
|
|
|
|
|
|
<para> </para>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</chapter>
|
