mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-22 06:07:49 +00:00
de76f7cc82
From GCC's standpoint ARC's multilib items are defined by "mcpu" values which we have quite a few and for all of them might be built optimized cross-toolchain. From Glibc's standpoint multilib is just multi-ABI [1] and so very limited versions are supposed to co-exist (e.g. arc700 & archs). Here we force Glibc to install libraries in GCC's multilib folder to create a universal cross-toolchain that has libs optimized for multiple CPU types. But note we only need to mess with installation paths in case of real multilib, otherwise we keep default "lib/" paths so that GCC finds default (the one and only) libs where it expects them to be. Also here we add a sample which allows to build universal Glibc Linux toolchain for ARC. [1] https://sourceware.org/ml/libc-alpha/2019-06/msg00018.html Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
68 lines
1.8 KiB
Bash
68 lines
1.8 KiB
Bash
# Compute ARC-specific values
|
|
|
|
CT_DoArchTupleValues()
|
|
{
|
|
# The architecture part of the tuple:
|
|
CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX:-${target_endian_eb}}"
|
|
}
|
|
|
|
CT_DoArchUClibcConfig()
|
|
{
|
|
local cfg="${1}"
|
|
|
|
CT_DoArchUClibcSelectArch "${cfg}" "arc"
|
|
}
|
|
|
|
CT_DoArchUClibcCflags()
|
|
{
|
|
local cfg="${1}"
|
|
local cflags="${2}"
|
|
local f
|
|
|
|
CT_KconfigDisableOption "CONFIG_ARC_HAS_ATOMICS" "${cfg}"
|
|
|
|
for f in ${cflags}; do
|
|
case "${f}" in
|
|
-matomic)
|
|
CT_KconfigEnableOption "CONFIG_ARC_HAS_ATOMICS" "${cfg}"
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
# Multilib: Adjust configure arguments for GLIBC
|
|
# Usage: CT_DoArchGlibcAdjustConfigure <configure-args-array-name> <cflags>
|
|
#
|
|
# From GCC's standpoint ARC's multilib items are defined by "mcpu" values
|
|
# which we have quite a few and for all of them might be built optimized
|
|
# cross-toolchain.
|
|
#
|
|
# From Glibc's standpoint multilib is multi-ABI and so very limited
|
|
# versions are supposed to co-exist.
|
|
#
|
|
# Here we force Glibc to install libraries in per-multilib folder to create
|
|
# a universal cross-toolchain that has libs optimized for multiple CPU types.
|
|
CT_DoArchGlibcAdjustConfigure() {
|
|
local -a add_args
|
|
local array="${1}"
|
|
local cflags="${2}"
|
|
local opt
|
|
local mcpu
|
|
|
|
# If building for multilib, set proper installation paths
|
|
if [ "${CT_MULTILIB}" = "y" ]; then
|
|
for opt in ${cflags}; do
|
|
case "${opt}" in
|
|
-mcpu=*)
|
|
mcpu="${opt#*=}"
|
|
add_args+=( "libc_cv_rtlddir=/lib/${mcpu}" )
|
|
add_args+=( "libc_cv_slibdir=/lib/${mcpu}" )
|
|
add_args+=( "--libdir=/usr/lib/${mcpu}" )
|
|
;;
|
|
esac
|
|
done
|
|
fi
|
|
|
|
eval "${array}+=( \"\${add_args[@]}\" )"
|
|
}
|