mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 20:51:11 +00:00
49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
# Definition of features which introduce new libc ABI versions. This
|
|
# file is used to create a header file with definitions for the various
|
|
# versions. The static linker will encode in the EI_ABIVERSION field in
|
|
# the e_ident array in the ELF program header the required ABI version.
|
|
# This is not a bitmask. The maximum ABI version required must be
|
|
# encoded.
|
|
#
|
|
# Adding new features should always happen by appending new lines. Never
|
|
# add entries in the middle or where they seem "logical". Once a version
|
|
# is assigned to a feature it must not change again. Since some features
|
|
# are conditionally added this can only ever be done securely without much
|
|
# risk is by adding at the end.
|
|
#
|
|
# The following lines have one of two formats:
|
|
#
|
|
# SYMBOL
|
|
# With just a symbol on the line this is the name of a feature which
|
|
# is architecture independent.
|
|
#
|
|
# SYMBOL PLATFORM
|
|
# Using this form architecture (and platform) dependent features can be
|
|
# specified. The PLATFORM name can use the wildcards available in
|
|
# the Bourne shell's case expression.
|
|
#
|
|
# Note that the same symbol can be used using different platform triples.
|
|
# They don't have to be in the same order relative to other entries. This
|
|
# can happen if the feature is implemented for different architectures
|
|
# at different times.
|
|
#
|
|
# This file is parsed by a script which produces a header file containing
|
|
# a single enum definition. An extra symbol is added as entry zero to
|
|
# specify the default ABI with number 0 and an artificial last entry is
|
|
# added to allow computing the maximum ABI version for the platform.
|
|
#
|
|
# Feature Name Configuration
|
|
# ------------ -------------
|
|
#
|
|
# Unique symbol definitions for C++.
|
|
# Architecture independent, all ELF targets (== all targets)
|
|
UNIQUE
|
|
#
|
|
# Indirect PLT relocations. Architecture dependent.
|
|
IFUNC x86_64-*-linux*
|
|
IFUNC i?86-*-linux*
|
|
IFUNC powerpc64-*-linux*
|
|
IFUNC powerpc-*-linux*
|
|
IFUNC sparc64-*-linux*
|
|
IFUNC sparc-*-linux*
|