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crosstool-ng/scripts/build/cc/gcc.sh
Yann E. MORIN" 6731142c39 Better handle the second pass core gcc build, differentiating between gcc prior to 4.3 with gcc from 4.3. 
Simplify detecting wether gcc is 4.3 and later, or older than 4.3 (we already know from .config).

 /trunk/scripts/build/cc/gcc.sh |   22    13     9     0 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)
2008-09-30 18:19:18 +00:00

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# This file adds the function to build the gcc C compiler
${extra_config} \
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
do_print_filename() {
[ "${CT_CC}" = "gcc" ] || return 0
echo "gcc-${CT_CC_VERSION}"
}
# Download gcc
do_cc_get() {
# Ah! gcc folks are kind of 'different': they store the tarballs in
# subdirectories of the same name! That's because gcc is such /crap/ that
# it is such /big/ that it needs being splitted for distribution! Sad. :-(
# Arrgghh! Some of those versions does not follow this convention:
# gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
# subdirectory! You bastard!
CT_GetFile "${CT_CC_FILE}" \
{ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/${CT_CC_FILE}}
}
# Extract gcc
do_cc_extract() {
CT_ExtractAndPatch "${CT_CC_FILE}"
}
#------------------------------------------------------------------------------
# Core gcc pass 1
do_cc_core_pass_1() {
# If we're building for bare metal, build the static core gcc,
# with libgcc.
# In case we're not bare metal, and we're NPTL, build the static core gcc.
# In any other case, do nothing.
case "${CT_BARE_METAL},${CT_THREADS}" in
y,*) do_cc_core mode=baremetal build_libgcc=yes;;
,nptl) do_cc_core mode=static build_libgcc=no;;
*) ;;
esac
}
# Core gcc pass 2
do_cc_core_pass_2() {
# In case we're building for bare metal, do nothing, we already have
# our compiler.
# In case we're NPTL, build the shared core gcc and the target libgcc.
# In any other case, build the static core gcc and, if using gcc-4.3+,
# also build the target libgcc.
case "${CT_BARE_METAL},${CT_THREADS}" in
y,*) ;;
,nptl)
do_cc_core mode=shared build_libgcc=yes
;;
*) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
do_cc_core mode=static build_libgcc=yes
else
do_cc_core mode=static build_libgcc=no
fi
;;
esac
}
#------------------------------------------------------------------------------
# Build core gcc
# This function is used to build both the static and the shared core C conpiler,
# with or without the target libgcc. We need to know wether:
# - we're building static, shared or bare metal: mode=[static|shared|baremetal]
# - we need to build libgcc or not : build_libgcc=[yes|no]
# Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
do_cc_core() {
local mode
local build_libgcc
local core_prefix_dir
local extra_config
eval $1
eval $2
CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
# In normal conditions, ( "${mode}" = "shared" ) implies
# ( "${build_libgcc}" = "yes" ), but I won't check for that
mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
CT_DoStep INFO "Installing ${mode} core C compiler"
case "${mode}" in
static)
core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
copy_headers=y
;;
shared)
core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
extra_config="${extra_config} --enable-shared"
copy_headers=y
;;
baremetal)
core_prefix_dir="${CT_PREFIX_DIR}"
extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
copy_headers=n
;;
esac
if [ "${copy_headers}" = "y" ]; then
CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
fi
CT_DoLog EXTRA "Configuring ${mode} core C compiler"
extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
[ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
extra_config="${extra_config} --enable-__cxa_atexit"
else
extra_config="${extra_config} --disable-__cxa_atexit"
fi
CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
# Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
CC_FOR_BUILD="${CT_CC_NATIVE}" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/${CT_CC_FILE}/configure" \
${CT_CANADIAN_OPT} \
--host=${CT_HOST} \
--target=${CT_TARGET} \
--prefix="${core_prefix_dir}" \
--with-local-prefix="${CT_SYSROOT_DIR}" \
--disable-multilib \
${CC_CORE_SYSROOT_ARG} \
${extra_config} \
--disable-nls \
--enable-symvers=gnu \
--enable-languages=c \
--enable-target-optspace \
${CT_CC_CORE_EXTRA_CONFIG}
if [ "${build_libgcc}" = "yes" ]; then
# HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
# gcc/config/t-libunwind so -lc is removed from the link for
# libgcc_s.so, as we do not have a target -lc yet.
# This is not as ugly as it appears to be ;-) All symbols get resolved
# during the glibc build, and we provide a proper libgcc_s.so for the
# cross toolchain during the final gcc build.
#
# As we cannot modify the source tree, nor override SHLIB_LC itself
# during configure or make, we have to edit the resultant
# gcc/libgcc.mk itself to remove -lc from the link.
# This causes us to have to jump through some hoops...
#
# To produce libgcc.mk to edit we firstly require libiberty.a,
# so we configure then build it.
# Next we have to configure gcc, create libgcc.mk then edit it...
# So much easier if we just edit the source tree, but hey...
if [ ! -f "${CT_SRC_DIR}/${CT_CC_FILE}/gcc/BASE-VER" ]; then
CT_DoExecLog ALL make configure-libiberty
CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
CT_DoExecLog ALL make configure-gcc configure-libcpp
CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
else
CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
fi
# HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
if [ -d "${CT_SRC_DIR}/${CT_CC_FILE}/libdecnumber" ]; then
CT_DoExecLog ALL make configure-libdecnumber
CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
fi
# Starting with GCC 4.3, libgcc.mk is no longer built,
# and libgcc.mvars is used instead.
if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
libgcc_rule="libgcc.mvars"
build_rules="all-gcc all-target-libgcc"
install_rules="install-gcc install-target-libgcc"
else
libgcc_rule="libgcc.mk"
build_rules="all-gcc"
install_rules="install-gcc"
fi
CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
else # build_libgcc
build_rules="all-gcc"
install_rules="install-gcc"
fi # ! build libgcc
if [ "${CT_CANADIAN}" = "y" ]; then
CT_DoLog EXTRA "Building libiberty"
CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
fi
CT_DoLog EXTRA "Building ${mode} core C compiler"
CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
CT_DoLog EXTRA "Installing ${mode} core C compiler"
CT_DoExecLog ALL make ${install_rules}
CT_EndStep
}
#------------------------------------------------------------------------------
# Build final gcc
do_cc() {
# If building for bare metal, nothing to be done here, the static core conpiler is enough!
[ "${CT_BARE_METAL}" = "y" ] && return 0
CT_DoStep INFO "Installing final compiler"
mkdir -p "${CT_BUILD_DIR}/build-cc"
cd "${CT_BUILD_DIR}/build-cc"
CT_DoLog EXTRA "Configuring final compiler"
# Enable selected languages
lang_opt="c"
[ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
[ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
[ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
[ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
[ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
[ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
extra_config="--enable-languages=${lang_opt}"
extra_config="${extra_config} --disable-multilib"
extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
[ "${CT_SHARED_LIBS}" = "y" ] || extra_config="${extra_config} --disable-shared"
[ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
[ -n "${CT_CC_PKGVERSION}" ] && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"
[ -n "${CT_CC_BUGURL}" ] && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"
[ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config="${extra_config} --enable-sjlj-exceptions"
[ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config="${extra_config} --disable-sjlj-exceptions"
if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
extra_config="${extra_config} --enable-__cxa_atexit"
else
extra_config="${extra_config} --disable-__cxa_atexit"
fi
CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
# --enable-symvers=gnu really only needed for sh4 to work around a
# detection problem only matters for gcc-3.2.x and later, I think.
# --disable-nls to work around crash bug on ppc405, but also because
# embedded systems don't really need message catalogs...
CC_FOR_BUILD="${CT_CC_NATIVE}" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/${CT_CC_FILE}/configure" \
${CT_CANADIAN_OPT} \
--target=${CT_TARGET} --host=${CT_HOST} \
--prefix="${CT_PREFIX_DIR}" \
${CC_SYSROOT_ARG} \
${extra_config} \
--with-local-prefix="${CT_SYSROOT_DIR}" \
--disable-nls \
--enable-threads=posix \
--enable-symvers=gnu \
--enable-c99 \
--enable-long-long \
--enable-target-optspace \
${CT_CC_EXTRA_CONFIG}
if [ "${CT_CANADIAN}" = "y" ]; then
CT_DoLog EXTRA "Building libiberty"
CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
fi
CT_DoLog EXTRA "Building final compiler"
CT_DoExecLog ALL make ${PARALLELMFLAGS} all
CT_DoLog EXTRA "Installing final compiler"
CT_DoExecLog ALL make install
# Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
# to call the C compiler with the same, somewhat canonical name.
ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-{g,}cc 2>&1 |CT_DoLog ALL
CT_EndStep
}
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