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d2d3c15c14
crosstool-ng/scripts/build/cc/gcc.sh
Titus von Boxberg d2d3c15c14 cc/gcc: Make usage of --enable-target-optspace configurable 
Optionally configure to compile gcc-internal libs with -Os.

yann.morin.1998@anciens.enib.fr:
Rename the config options, it is in the GCC /namespace/.
2010-05-24 16:34:55 +02:00

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# This file adds the function to build the gcc C compiler
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
# 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 "gcc-${CT_CC_VERSION}" \
{ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}} \
ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION} \
ftp://ftp.uvsq.fr/pub/gcc/snapshots/${CT_CC_VERSION}
# Starting with GCC 4.3, ecj is used for Java, and will only be
# built if the configure script finds ecj.jar at the top of the
# GCC source tree, which will not be there unless we get it and
# put it there ourselves
if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java \
ftp://sourceware.org/pub/java
fi
}
# Extract gcc
do_cc_extract() {
CT_Extract "gcc-${CT_CC_VERSION}"
CT_Patch "gcc" "${CT_CC_VERSION}"
# Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" \
-a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar" \
]; then
CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
fi
}
#------------------------------------------------------------------------------
# Core gcc pass 1
do_cc_core_pass_1() {
# If we're building for bare metal, build the static core gcc,
# with libgcc.
# In case we're not bare metal and building a canadian compiler, do nothing
# In case we're not bare metal, and we're NPTL, build the static core gcc.
# In any other case, do nothing.
case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
y,*,*) do_cc_core mode=baremetal build_libgcc=yes;;
,y,*) ;;
,,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 not bare metal and building a canadian compiler, do nothing
# 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_CANADIAN},${CT_THREADS}" in
y,*,*) ;;
,y,*) ;;
,,nptl)
do_cc_core mode=shared build_libgcc=yes
;;
*) if [ "${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 lang_opt
local tmp
local -a extra_config
local core_LDFLAGS
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
CT_DoStep INFO "Installing ${mode} core C compiler"
mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
lang_opt=c
case "${mode}" in
static)
core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
extra_config+=("--with-newlib")
extra_config+=("--enable-threads=no")
extra_config+=("--disable-shared")
copy_headers=y
;;
shared)
core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
extra_config+=("--enable-shared")
copy_headers=y
;;
baremetal)
core_prefix_dir="${CT_PREFIX_DIR}"
extra_config+=("--with-newlib")
extra_config+=("--enable-threads=no")
extra_config+=("--disable-shared")
[ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
copy_headers=n
;;
esac
# Bare metal delivers the core compiler as final compiler, so add version info and bugurl
[ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
[ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
if [ "${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 ${mode} core C compiler"
for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
eval tmp="\${CT_ARCH_WITH_${tmp}}"
if [ -n "${tmp}" ]; then
extra_config+=("${tmp}")
fi
done
if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
extra_config+=("--enable-__cxa_atexit")
else
extra_config+=("--disable-__cxa_atexit")
fi
# When companion libraries are build static (eg !shared),
# the libstdc++ is not pulled automatically, although it
# is needed. Shoe-horn it in our LDFLAGS
if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
core_LDFLAGS='-lstdc++'
fi
if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
extra_config+=("--enable-target-optspace")
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_BUILD}-gcc" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
LDFLAGS="${core_LDFLAGS}" \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
--build=${CT_BUILD} \
--host=${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="${lang_opt}" \
${CT_CC_CORE_EXTRA_CONFIG}
if [ "${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 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/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}/gcc-${CT_CC_VERSION}/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
# On bare metal and canadian build the host-compiler is used when
# actually the build-system compiler is required. Choose the correct
# compilers for canadian build and use the defaults on other
# configurations.
if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
GCC_FOR_TARGET=${CT_TARGET}-gcc"
else
repair_cc=""
fi
CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
${repair_cc}
sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
else # build_libgcc
build_rules="all-gcc"
install_rules="install-gcc"
fi # ! build libgcc
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}
# Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
# to call the C compiler with the same, somewhat canonical name.
# check whether compiler has an extension
file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
[ -z "${file}" ] || ext=".${file##*.}"
CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
CT_EndStep
}
#------------------------------------------------------------------------------
# Build final gcc
do_cc() {
local -a extra_config
local tmp
local final_LDFLAGS
# If building for bare metal, nothing to be done here, the static core conpiler is enough!
[ "${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=${lang_opt}")
extra_config+=("--disable-multilib")
for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
eval tmp="\${CT_ARCH_WITH_${tmp}}"
if [ -n "${tmp}" ]; then
extra_config+=("${tmp}")
fi
done
[ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
[ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
[ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
[ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config+=("--enable-sjlj-exceptions")
[ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config+=("--disable-sjlj-exceptions")
if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
extra_config+=("--enable-__cxa_atexit")
else
extra_config+=("--disable-__cxa_atexit")
fi
if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
fi
# When companion libraries are build static (eg !shared),
# the libstdc++ is not pulled automatically, although it
# is needed. Shoe-horn it in our LDFLAGS
if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
final_LDFLAGS='-lstdc++'
fi
if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
fi
if [ "${CT_THREADS}" = "none" ]; then
extra_config+=("--disable-threads")
if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
extra_config+=("--disable-libgomp")
fi
else
extra_config+=("--enable-threads=posix")
fi
if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
extra_config+=("--enable-target-optspace")
fi
CT_DoLog DEBUG "Extra config passed: '${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="${CT_BUILD}-gcc" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
LDFLAGS="${final_LDFLAGS}" \
CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
--build=${CT_BUILD} \
--host=${CT_HOST} \
--target=${CT_TARGET} \
--prefix="${CT_PREFIX_DIR}" \
${CC_SYSROOT_ARG} \
"${extra_config[@]}" \
--with-local-prefix="${CT_SYSROOT_DIR}" \
--disable-nls \
--enable-symvers=gnu \
--enable-c99 \
--enable-long-long \
${CT_CC_EXTRA_CONFIG}
if [ "${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 ${CT_TARGET}-gcc to always be able
# to call the C compiler with the same, somewhat canonical name.
# check whether compiler has an extension
file="$( ls -1 "${CT_TARGET}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
[ -z "${file}" ] || ext=".${file##*.}"
CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"
CT_EndStep
}
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