# 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=static;; ,y,*) ;; ,,nptl) do_cc_core mode=static;; *) ;; 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},${CT_THREADS}" in y,*,*) do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;; ,y,*) ;; ,,nptl) do_cc_core mode=shared build_libgcc=yes ;; ,,win32) do_cc_core mode=static build_libgcc=yes ;; *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then do_cc_core mode=static build_libgcc=yes else do_cc_core mode=static 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] (default: no) # - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no) # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no] do_cc_core() { local mode local build_libgcc=no local build_libstdcxx=no local core_prefix_dir local lang_opt local tmp local -a extra_config local core_LDFLAGS local -a core_targets while [ $# -ne 0 ]; do eval "${1}" shift done 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 # For baremetal, as there's no headers to copy, # we copy an empty directory. So, who cares? ;; 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 ;; *) CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" ;; esac CT_DoStep INFO "Installing ${mode} core C compiler" mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}" cd "${CT_BUILD_DIR}/build-cc-core-${mode}" # Bare metal delivers the core compiler as final compiler, so add version info and bugurl [ -n "${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 cp -a "${CT_HEADERS_DIR}" "${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 [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then extra_config+=("--enable-__cxa_atexit") else extra_config+=("--disable-__cxa_atexit") fi # When companion libraries are build static (eg !shared), # the libstdc++ is not pulled automatically, although it # is needed. Shoe-horn it in our LDFLAGS # Ditto libm on some Fedora boxen if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then core_LDFLAGS='-lstdc++ -lm' 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_MPC}" = "y" ]; then extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}") fi if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}") extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}") 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=${CT_COMPLIBS_DIR}") extra_config+=("--enable-lto") elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then extra_config+=("--with-libelf=no") extra_config+=("--disable-lto") fi if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then extra_config+=("--enable-target-optspace") fi case "${CT_CC_GCC_LDBL_128}" in Y) extra_config+=("--with-long-double-128");; M) ;; "") extra_config+=("--without-long-double-128");; esac 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 \ --disable-libmudflap \ ${CC_CORE_SYSROOT_ARG} \ "${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" core_targets=( gcc target-libgcc ) else libgcc_rule="libgcc.mk" core_targets=( 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 core_targets=( gcc ) fi # ! build libgcc if [ "${build_libstdcxx}" = "yes" \ -a "${CT_CC_LANG_CXX}" = "y" \ ]; then core_targets+=( target-libstdc++-v3 ) fi CT_DoLog EXTRA "Building ${mode} core C compiler" CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}" CT_DoLog EXTRA "Installing ${mode} core C compiler" CT_DoExecLog ALL make "${core_targets[@]/#/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 "${core_prefix_dir}/bin/${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},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;') # In case we build the C++ compiler, we have to tell gcc where to put the # C++ headers, or else it will try to put it in prefix/tuple/include, # which we make a symlink to sysroot/usr/include during the build, and # that we delete (the symlink!) after the build, but gcc will not look # in sysroot/usr/inlcude for C++ headers by default if [ "${CT_CC_LANG_CXX}" = "y" ]; then extra_config+=("--with-gxx-include-dir=${CT_SYSROOT_DIR}/usr/include") fi 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=${CT_CC_BUGURL}") case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in y) extra_config+=("--enable-sjlj-exceptions");; m) ;; "") extra_config+=("--disable-sjlj-exceptions");; esac 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=${CC_ENABLE_CXX_FLAGS}") fi if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then extra_config+=(--enable-libmudflap) else extra_config+=(--disable-libmudflap) fi if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2 # build script # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++, # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm") elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then # When companion libraries are build static (eg !shared), # the libstdc++ is not pulled automatically, although it # is needed. Shoe-horn it in our LDFLAGS # Ditto libm on some Fedora boxen final_LDFLAGS='-lstdc++ -lm' 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_MPC}" = "y" ]; then extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}") fi if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}") extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}") 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=${CT_COMPLIBS_DIR}") elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then extra_config+=("--with-libelf=no") 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 if [ "${CT_THREADS}" = "win32" ]; then extra_config+=("--enable-threads=win32") extra_config+=("--disable-win32-registry") else extra_config+=("--enable-threads=posix") fi fi if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then extra_config+=("--enable-target-optspace") fi if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then extra_config+=("--disable-libstdcxx-pch") fi case "${CT_CC_GCC_LDBL_128}" in Y) extra_config+=("--with-long-double-128");; M) ;; "") extra_config+=("--without-long-double-128");; esac 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 "${CT_PREFIX_DIR}/bin/${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 }