|
|
|
|
---
|
|
|
|
|
title: 64-bit ELF v2 ABI Specification for OpenPOWER Architecture
|
|
|
|
|
publicreview: false
|
|
|
|
|
tags:
|
|
|
|
|
- specifications
|
|
|
|
|
- systemsoftware
|
|
|
|
|
- abi
|
|
|
|
|
group: systemsoftware
|
|
|
|
|
date: 2021-03-15
|
|
|
|
|
draft: false
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
The ABI (application binary interface) specification provides the definitions for the machine interface and
|
|
|
|
|
inter-object interfaces for the little-endian POWER architecture.
|
|
|
|
|
|
|
|
|
|
This specification defines the OpenPOWER ELF v2 ABI which is derived from and represents the first major update to the Power ABI
|
|
|
|
|
since the original release of the IBM® RS/6000® ABI.
|
|
|
|
|
It was developed to make extensive use of new functions available in OpenPOWER-compliant processors.
|
|
|
|
|
It expects an OpenPOWER-compliant processor to implement at least Power ISA v2.07B with all OpenPOWER Architecture instruction categories
|
|
|
|
|
as well as OpenPOWER-defined implementation characteristics for some implementation-specific features.
|
|
|
|
|
|
|
|
|
|
The Executable and Linking Format (ELF) defines a linking interface for executables and shared objects in two parts :
|
|
|
|
|
the first part is the generic System V ABI, the second part is a processor-specific supplement.
|
|
|
|
|
This document, the OpenPOWER ABI for Linux Supplement for the Power Architecture 64-bit ELF V2 ABI,
|
|
|
|
|
is the OpenPOWER-compliant processor-specific supplement for use with ELF V2 on 64-bit IBM Power Architecture® systems.
|
|
|
|
|
This is not a complete System V ABI supplement because it does not define any library interfaces.
|
|
|
|
|
This document establishes both big-endian and little-endian application binary interfaces.
|
|
|
|
|
OpenPOWER-compliant processors in the 64-bit Power Architecture can execute in either big-endian or little-endian mode.
|
|
|
|
|
Executables and executable-generated data (in general) that subscribes to either byte ordering is not portable to a system running in the other mode.
|
|
|
|
|
|
|
|
|
|
Comments, questions, etc. can be submitted to the public mailing list for this document at
|
|
|
|
|
<syssw-elfv2abi@mailinglist.openpowerfoundation.org>.
|
