crosstool-ng/scripts/build/companion_libs/140-mpc.sh
Marc Poulhiès cdae8d0559 Enable support for building libgccjit
libgccjit is still under development and, despite its name, may also be used for
ahead-of-time compilation.

Documentation can be found on the gcc website:
https://gcc.gnu.org/onlinedocs/jit/internals/index.html
https://gcc.gnu.org/wiki/JIT

With this change it's possible to enable the building of the libgccjit. It's
enabled as a language (with --enable-languages=jit) even if not a language
frontend at all.

The main changes are related to the requirement of having everything host side
built as Position Independent Code (PIC) with --enable-host-shared. GCC has the
needed logic for building its dependencies (mpc, gmp, mpfr, ...) correctly when
built "in-tree", which is not the case with crosstool-ng (see
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=05048fc29f0)

Signed-off-by: Marc Poulhiès <dkm@kataplop.net>
2022-12-18 21:20:50 +13:00

126 lines
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# This file adds the functions to build the MPC library
# Copyright 2009 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
do_mpc_get() { :; }
do_mpc_extract() { :; }
do_mpc_for_build() { :; }
do_mpc_for_host() { :; }
do_mpc_for_target() { :; }
# Overide functions depending on configuration
if [ "${CT_MPC}" = "y" ]; then
# Download MPC
do_mpc_get() {
CT_Fetch MPC
}
# Extract MPC
do_mpc_extract() {
CT_ExtractPatch MPC
}
# Build MPC for running on build
# - always build statically
# - install in build-tools prefix
do_mpc_for_build() {
local -a mpc_opts
case "${CT_TOOLCHAIN_TYPE}" in
native|cross) return 0;;
esac
CT_DoStep INFO "Installing MPC for build"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-mpc-build-${CT_BUILD}"
mpc_opts+=( "host=${CT_BUILD}" )
mpc_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" )
mpc_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" )
mpc_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" )
if [ "${CT_CC_LANG_JIT}" = "y" ]; then
mpc_opts+=("--with-pic")
fi
do_mpc_backend "${mpc_opts[@]}"
CT_Popd
CT_EndStep
}
# Build MPC for running on host
do_mpc_for_host() {
local -a mpc_opts
CT_DoStep INFO "Installing MPC for host"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-mpc-host-${CT_HOST}"
mpc_opts+=( "host=${CT_HOST}" )
mpc_opts+=( "prefix=${CT_HOST_COMPLIBS_DIR}" )
mpc_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" )
mpc_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" )
do_mpc_backend "${mpc_opts[@]}"
CT_Popd
CT_EndStep
}
# Build MPC
# Parameter : description : type : default
# host : machine to run on : tuple : (none)
# prefix : prefix to install into : dir : (none)
# cflags : cflags to use : string : (empty)
# ldflags : ldflags to use : string : (empty)
do_mpc_backend() {
local host
local prefix
local cflags
local ldflags
local arg
local -a extra_config
for arg in "$@"; do
eval "${arg// /\\ }"
done
if [ "${CT_CC_LANG_JIT}" = "y" ]; then
extra_config+=("--with-pic")
fi
CT_DoLog EXTRA "Configuring MPC"
CT_DoExecLog CFG \
CFLAGS="${cflags}" \
LDFLAGS="${ldflags}" \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/mpc/configure" \
--build=${CT_BUILD} \
--host=${host} \
"${extra_config[@]}" \
--prefix="${prefix}" \
--with-gmp="${prefix}" \
--with-mpfr="${prefix}" \
--disable-shared \
--enable-static
CT_DoLog EXTRA "Building MPC"
CT_DoExecLog ALL make ${CT_JOBSFLAGS}
if [ "${CT_COMPLIBS_CHECK}" = "y" ]; then
if [ "${host}" = "${CT_BUILD}" ]; then
CT_DoLog EXTRA "Checking MPC"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} -s check
else
# Cannot run host binaries on build in a canadian cross
CT_DoLog EXTRA "Skipping check for MPC on the host"
fi
fi
CT_DoLog EXTRA "Installing MPC"
CT_DoExecLog ALL make install
}
fi # CT_MPC