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cc/gcc: add the backend/frontend infra for final gcc

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Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Yann E. MORIN" 2011-07-17 22:46:47 +02:00
parent 35f50ca6c2
commit 40dda92f57
1 changed files with 39 additions and 10 deletions
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49
scripts/build/cc/gcc.sh
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@ -487,16 +487,45 @@ do_cc_core_backend() {
#------------------------------------------------------------------------------
# Build final gcc
do_cc() {
local -a final_opts
final_opts+=( "host=${CT_HOST}" )
final_opts+=( "prefix=${CT_PREFIX_DIR}" )
final_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
final_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" )
do_cc_backend "${final_opts[@]}"
}
#------------------------------------------------------------------------------
# Build final gcc
# Usage: do_cc_backend param=value ...
# and so on for other parameters:
# Parameter : Definition : Type : Default
# host : the host we run onto : tuple : (none)
# prefix : the runtime prefix : dir : (none)
# complibs : the companion libraries prefix : dir : (none)
# cflags : the host CFLAGS : string : (empty)
do_cc_backend() {
local host
local prefix
local complibs
local cflags
local -a host_libstdcxx_flags
local -a extra_config
local -a final_LDFLAGS
local tmp
local arg
# If building for bare metal, nothing to be done here, the static core conpiler is enough!
[ "${CT_BARE_METAL}" = "y" ] && return 0
CT_DoStep INFO "Installing final compiler"
for arg in "$@"; do
eval "${arg// /\\ }"
done
mkdir -p "${CT_BUILD_DIR}/build-cc"
cd "${CT_BUILD_DIR}/build-cc"
@ -592,26 +621,26 @@ do_cc() {
fi
if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
extra_config+=("--with-gmp=${complibs}")
extra_config+=("--with-mpfr=${complibs}")
fi
if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpc=${complibs}")
fi
if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
extra_config+=("--with-ppl=${complibs}")
# With PPL 0.11+, also pull libpwl if needed
if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
host_libstdcxx_flags+=("-L${CT_COMPLIBS_DIR}/lib")
host_libstdcxx_flags+=("-L${complibs}/lib")
host_libstdcxx_flags+=("-lpwl")
fi
extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
extra_config+=("--with-cloog=${complibs}")
elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=no")
extra_config+=("--with-cloog=no")
fi
if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
extra_config+=("--with-libelf=${complibs}")
elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
extra_config+=("--with-libelf=no")
fi
@ -698,16 +727,16 @@ do_cc() {
CT_DoExecLog CFG \
CC_FOR_BUILD="${CT_BUILD}-gcc" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
CFLAGS="${cflags}" \
LDFLAGS="${final_LDFLAGS[*]}" \
CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
"${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
--build=${CT_BUILD} \
--host=${CT_HOST} \
--host=${host} \
--target=${CT_TARGET} \
--prefix="${CT_PREFIX_DIR}" \
--prefix="${prefix}" \
${CC_SYSROOT_ARG} \
"${extra_config[@]}" \
--with-local-prefix="${CT_SYSROOT_DIR}" \