# 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_BUILD}-gcc" \ CFLAGS="${CT_CFLAGS_FOR_HOST}" \ CT_DoExecLog ALL \ "${CT_SRC_DIR}/${CT_CC_FILE}/configure" \ --build=${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=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_BUILD}-gcc" \ 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" \ --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-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 ${CT_TARGET}-gcc to always be able # to call the C compiler with the same, somewhat canonical name. CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc CT_EndStep }