# 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() { local linaro_version="" local linaro_series="" CT_Fetch GCC # 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 [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then if ! CT_GetFile package=ecj basename=ecj-latest extensions=.jar dir_name=gcc \ mirrors="$(CT_Mirrors sourceware java)"; then # Should be a package, too - but with Java retirement in GCC, # it may not make sense. CT_Abort "Failed to download ecj-latest.jar" fi fi } # Extract gcc do_cc_extract() { CT_ExtractPatch GCC # 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/ecj.jar" ]; then CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc/ecj.jar" fi } #------------------------------------------------------------------------------ # This function builds up the set of languages to enable # No argument expected, returns the comma-separated language list on stdout cc_gcc_lang_list() { local lang_list lang_list="c" [ "${CT_CC_LANG_CXX}" = "y" ] && lang_list+=",c++" [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_list+=",fortran" [ "${CT_CC_LANG_ADA}" = "y" ] && lang_list+=",ada" [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_list+=",java" [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_list+=",objc" [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_list+=",obj-c++" [ "${CT_CC_LANG_GOLANG}" = "y" ] && lang_list+=",go" lang_list+="${CT_CC_LANG_OTHERS:+,${CT_CC_LANG_OTHERS}}" printf "%s" "${lang_list}" } #------------------------------------------------------------------------------ # Report the type of a GCC option cc_gcc_classify_opt() { # Options present in multiple architectures case "${1}" in -march=*) echo "arch"; return;; -mabi=*) echo "abi"; return;; -mcpu=*|-mmcu=*) echo "cpu"; return;; -mtune=*) echo "tune"; return;; -mfpu=*) echo "fpu"; return;; -mhard-float|-msoft-float|-mno-soft-float|-mno-float|-mfloat-abi=*|\ -mfpu|-mno-fpu) echo "float"; return;; -EB|-EL|-mbig-endian|-mlittle-endian|-mbig|-mlittle|-meb|-mel|-mb|-ml) echo "endian"; return;; -mthumb|-marm) echo "mode"; return;; esac # Arch-specific options and aliases case "${CT_ARCH}" in m68k) case "${1}" in -m68881) echo "float"; return;; -m5[234]*|-mcfv4e) echo "cpu"; return;; -m68*|-mc68*) echo "arch"; return;; esac ;; mips) case "${1}" in -mips[1234]|-mips32|-mips32r*|-mips64|-mips64r*) echo "cpu"; return;; esac ;; sh) case "${1}" in -m[12345]*) echo "cpu"; return;; esac esac # All tried and failed echo "unknown" } evaluate_multilib_cflags() { local multi_dir multi_os_dir multi_os_dir_gcc multi_root multi_flags multi_index multi_count local mdir mdir_os dirtop local f for arg in "$@"; do eval "${arg// /\\ }" done mdir="lib/${multi_dir}" mdir_os="lib/${multi_os_dir_gcc}" CT_SanitizeVarDir mdir mdir_os CT_DoLog EXTRA " '${multi_flags}' --> ${mdir} (gcc) ${mdir_os} (os)" for f in ${multi_flags}; do eval ml_`cc_gcc_classify_opt ${f}`=seen done if [ "${CT_DEMULTILIB}" = "y" -a "${CT_USE_SYSROOT}" = "y" ]; then case "${mdir_os}" in lib/*) ;; *) dirtop="${mdir_os%%/*}" if [ ! -e "${multi_root}/${mdir_os}" ]; then CT_DoExecLog ALL ln -sfv lib "${multi_root}/${mdir_os}" fi if [ ! -e "${multi_root}/usr/${mdir_os}" ]; then CT_DoExecLog ALL ln -sfv lib "${multi_root}/usr/${mdir_os}" fi ;; esac fi } #------------------------------------------------------------------------------ # This function lists the multilibs configured in the compiler (even if multilib # is disabled - so that it lists the default GCC/OS directory, which may differ # from the default 'lib'). It then performs a few multilib checks/quirks: # # 1. On MIPS target, gcc (or rather, ld, which it invokes under the hood) chokes # if supplied with two -mabi=* options. I.e., 'gcc -mabi=n32' and 'gcc -mabi=32' both # work, but 'gcc -mabi=32 -mabi=n32' produces an internal error in ld. Thus we do # not supply target's CFLAGS in multilib builds - and after compiling pass-1 gcc, # attempt to determine which CFLAGS need to be filtered out. # # 2. If "demultilibing" is in effect, create top-level directories for any # multilibs not in lib/ as symlinks to lib. cc_gcc_multilib_housekeeping() { local cc host local ml_arch ml_abi ml_cpu ml_tune ml_fpu ml_float ml_endian ml_mode ml_unknown ml local new_cflags for arg in "$@"; do eval "${arg// /\\ }" done if [ \( "${CT_CANADIAN}" = "y" -o "${CT_CROSS_NATIVE}" = "y" \) -a "${host}" = "${CT_HOST}" ]; then CT_DoLog EXTRA "Canadian Cross/Cross-native unable to confirm multilibs configuration "\ "directly; will use build-compiler for housekeeping." # Since we cannot run the desired compiler, substitute build-CC with the assumption # that the host-CC is configured in the same way. cc="${CT_BUILDTOOLS_PREFIX_DIR}/bin/${CT_TARGET}-${CT_CC}" fi CT_IterateMultilibs evaluate_multilib_cflags evaluate_cflags if [ -n "${CT_MULTILIB}" ]; then # Filtering out some of the options provided in CT-NG config. Then *prepend* # them to CT_TARGET_CFLAGS, like scripts/crosstool-NG.sh does. Zero out # the stashed MULTILIB flags so that we don't process them again in the passes # that follow. CT_DoLog DEBUG "Configured target CFLAGS: '${CT_ARCH_TARGET_CFLAGS_MULTILIB}'" ml_unknown= # Pass through anything we don't know about for f in ${CT_ARCH_TARGET_CFLAGS_MULTILIB}; do eval ml=\$ml_`cc_gcc_classify_opt ${f}` if [ "${ml}" != "seen" ]; then new_cflags="${new_cflags} ${f}" fi done CT_DoLog DEBUG "Filtered target CFLAGS: '${new_cflags}'" CT_EnvModify CT_ALL_TARGET_CFLAGS "${new_cflags} ${CT_TARGET_CFLAGS}" CT_EnvModify CT_ARCH_TARGET_CFLAGS_MULTILIB "" # Currently, the only LDFLAGS are endianness-related CT_DoLog DEBUG "Configured target LDFLAGS: '${CT_ARCH_TARGET_LDFLAGS_MULTILIB}'" if [ "${ml_endian}" != "seen" ]; then CT_EnvModify CT_ALL_TARGET_LDFLAGS "${CT_ARCH_TARGET_LDFLAGS_MULTILIB} ${CT_TARGET_LDFLAGS}" CT_EnvModify CT_ARCH_TARGET_LDFLAGS_MULTILIB "" fi CT_DoLog DEBUG "Filtered target LDFLAGS: '${CT_ARCH_TARGET_LDFLAGS_MULTILIB}'" fi } #------------------------------------------------------------------------------ # Core gcc pass 1 do_cc_core_pass_1() { local -a core_opts if [ "${CT_CC_CORE_PASS_1_NEEDED}" != "y" ]; then return 0 fi core_opts+=( "mode=static" ) core_opts+=( "host=${CT_BUILD}" ) core_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" ) core_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" ) core_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" ) core_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" ) core_opts+=( "lang_list=c" ) core_opts+=( "build_step=core1" ) CT_DoStep INFO "Installing pass-1 core C gcc compiler" CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-gcc-core-pass-1" do_gcc_core_backend "${core_opts[@]}" CT_Popd CT_EndStep } # Core gcc pass 2 do_cc_core_pass_2() { local -a core_opts if [ "${CT_CC_CORE_PASS_2_NEEDED}" != "y" ]; then return 0 fi # Common options: core_opts+=( "host=${CT_BUILD}" ) core_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" ) core_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" ) core_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" ) core_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" ) core_opts+=( "lang_list=c" ) core_opts+=( "build_step=core2" ) # Different conditions are at stake here: # - In case the threading model is NPTL, we need a shared-capable core # gcc; in all other cases, we need a static-only core gcc. # - In case the threading model is NPTL or win32, or gcc is 4.3 or # later, we need to build libgcc case "${CT_THREADS}" in nptl) if [ "${CT_SHARED_LIBS}" = "y" ]; then core_opts+=( "mode=shared" ) else core_opts+=( "mode=static" ) fi core_opts+=( "build_libgcc=yes" ) ;; win32) core_opts+=( "mode=static" ) core_opts+=( "build_libgcc=yes" ) ;; *) core_opts+=( "mode=static" ) core_opts+=( "build_libgcc=yes" ) ;; esac CT_DoStep INFO "Installing pass-2 core C gcc compiler" CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-gcc-core-pass-2" do_gcc_core_backend "${core_opts[@]}" CT_Popd CT_EndStep } #------------------------------------------------------------------------------ # Build core gcc # This function is used to build the core C compiler. # Usage: do_gcc_core_backend param=value [...] # Parameter : Definition : Type : Default # mode : build a 'static', 'shared' or 'baremetal' : string : (none) # host : the machine the core will run on : tuple : (none) # prefix : dir prefix to install into : dir : (none) # complibs : dir where complibs are installed : dir : (none) # lang_list : the list of languages to build : string : (empty) # build_libgcc : build libgcc or not : bool : no # build_libstdcxx : build libstdc++ or not : bool : no # build_libgfortran : build libgfortran or not : bool : no # build_staticlinked : build statically linked or not : bool : no # build_manuals : whether to build manuals or not : bool : no # cflags : cflags to use : string : (empty) # ldflags : ldflags to use : string : (empty) # build_step : build step 'core1', 'core2', 'gcc_build' # or 'gcc_host' : string : (none) # Usage: do_gcc_core_backend mode=[static|shared|baremetal] build_libgcc=[yes|no] build_staticlinked=[yes|no] do_gcc_core_backend() { local mode local build_libgcc=no local build_libstdcxx=no local build_libgfortran=no local build_staticlinked=no local build_manuals=no local host local prefix local complibs local lang_list local cflags cflags_for_build cflags_for_target local ldflags local build_step local log_txt local tmp local -a host_libstdcxx_flags local -a extra_config local -a core_LDFLAGS local -a core_targets local -a core_targets_all local -a core_targets_install local -a extra_user_config local arg for arg in "$@"; do eval "${arg// /\\ }" done # This function gets called in case of a bare metal compiler for the final gcc, too. case "${build_step}" in core1|core2) CT_DoLog EXTRA "Configuring core C gcc compiler" log_txt="gcc" extra_config+=( "${CT_CC_CORE_SYSROOT_ARG[@]}" ) extra_user_config=( "${CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY[@]}" ) ;; gcc_build|gcc_host) CT_DoLog EXTRA "Configuring final gcc compiler" extra_config+=( "${CT_CC_SYSROOT_ARG[@]}" ) extra_user_config=( "${CT_CC_GCC_EXTRA_CONFIG_ARRAY[@]}" ) log_txt="final gcc compiler" # to inhibit the libiberty and libgcc tricks later on build_libgcc=no ;; *) CT_Abort "Internal Error: 'build_step' must be one of: 'core1', 'core2', 'gcc_build' or 'gcc_host', not '${build_step:-(empty)}'" ;; esac case "${mode}" in static) extra_config+=("--with-newlib") extra_config+=("--enable-threads=no") extra_config+=("--disable-shared") ;; shared) extra_config+=("--enable-shared") ;; baremetal) extra_config+=("--with-newlib") extra_config+=("--enable-threads=no") extra_config+=("--disable-shared") ;; *) CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" ;; esac for tmp in ARCH ABI CPU TUNE FPU FLOAT ENDIAN; do eval tmp="\${CT_ARCH_WITH_${tmp}}" if [ -n "${tmp}" ]; then extra_config+=("${tmp}") fi done [ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}") [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}") if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then extra_config+=("--enable-__cxa_atexit") else extra_config+=("--disable-__cxa_atexit") fi if [ -n "${CT_CC_GCC_ENABLE_CXX_FLAGS}" \ -a "${mode}" = "baremetal" ]; then extra_config+=("--enable-cxx-flags=${CT_CC_GCC_ENABLE_CXX_FLAGS}") fi extra_config+=(--disable-libgomp) extra_config+=(--disable-libmudflap) extra_config+=(--disable-libmpx) if [ "${CT_CC_GCC_LIBSSP}" = "y" ]; then extra_config+=(--enable-libssp) else extra_config+=(--disable-libssp) fi if [ "${CT_CC_GCC_LIBQUADMATH}" = "y" ]; then extra_config+=(--enable-libquadmath) extra_config+=(--enable-libquadmath-support) else extra_config+=(--disable-libquadmath) extra_config+=(--disable-libquadmath-support) fi core_LDFLAGS+=("${ldflags}") # *** WARNING ! *** # Keep this full if-else-if-elif-fi-fi block in sync # with the same block in do_gcc_backend, below. if [ "${build_staticlinked}" = "yes" ]; then core_LDFLAGS+=("-static") host_libstdcxx_flags+=("-static-libgcc") host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++") host_libstdcxx_flags+=("-lm") # Companion libraries are build static (eg !shared), so # the libstdc++ is not pulled automatically, although it # is needed. Shoe-horn it in our LDFLAGS # Ditto libm on some Fedora boxen core_LDFLAGS+=("-lstdc++") core_LDFLAGS+=("-lm") else if [ "${CT_CC_GCC_STATIC_LIBSTDCXX}" = "y" ]; then # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2 # build script # INFO: 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 host_libstdcxx_flags+=("-static-libgcc") host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic") host_libstdcxx_flags+=("-lm") 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 core_LDFLAGS+=("-lstdc++") core_LDFLAGS+=("-lm") fi extra_config+=("--with-gmp=${complibs}") extra_config+=("--with-mpfr=${complibs}") extra_config+=("--with-mpc=${complibs}") if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then if [ "${CT_ISL}" = "y" ]; then extra_config+=("--with-isl=${complibs}") fi if [ "${CT_CLOOG}" = "y" ]; then extra_config+=("--with-cloog=${complibs}") fi else extra_config+=("--with-isl=no") extra_config+=("--with-cloog=no") fi if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then extra_config+=("--enable-lto") else extra_config+=("--disable-lto") fi if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}") 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 if [ "${CT_LIBC_GLIBC}" = "y" ]; then # Report GLIBC's version to GCC, it affects the defaults on other options. # Pass-2 should be able to get it from the headers, but for some options # (such as --with-long-double-128) we need to get it right even in pass-1. # GCC expects just two numbers separated by a dot. local glibc_version CT_GetPkgVersion GLIBC glibc_version case "${glibc_version}" in new) glibc_version=99.99;; old) glibc_version=1.0;; *) glibc_version=`echo "${glibc_version}" | sed 's/\([1-9][0-9]*\.[1-9][0-9]*\).*/\1/'`;; esac extra_config+=("--with-glibc-version=${glibc_version}") fi case "${CT_CC_GCC_LDBL_128}" in y) extra_config+=("--with-long-double-128");; m) ;; "") extra_config+=("--without-long-double-128");; esac if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then extra_config+=( --enable-linker-build-id ) fi case "${CT_CC_GCC_LNK_HASH_STYLE}" in "") ;; *) extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );; esac case "${CT_CC_GCC_DEC_FLOATS}" in "") ;; *) extra_config+=( "--enable-decimal-float=${CT_CC_GCC_DEC_FLOATS}" );; esac case "${CT_ARCH}" in mips) case "${CT_CC_GCC_mips_llsc}" in y) extra_config+=( --with-llsc );; m) ;; *) extra_config+=( --without-llsc );; esac case "${CT_CC_GCC_mips_synci}" in y) extra_config+=( --with-synci );; m) ;; *) extra_config+=( --without-synci );; esac if [ "${CT_CC_GCC_mips_plt}" ]; then extra_config+=( --with-mips-plt ) fi ;; # ARCH is mips esac if [ "${CT_TOOLCHAIN_ENABLE_NLS}" = "y" ]; then extra_config+=("--with-libintl-prefix=${complibs}") else extra_config+=("--disable-nls") fi if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then extra_config+=("--with-system-zlib") fi case "${CT_CC_GCC_CONFIG_TLS}" in y) extra_config+=("--enable-tls");; m) ;; "") extra_config+=("--disable-tls");; esac # Some versions of gcc have a defective --enable-multilib. # Since that's the default, only pass --disable-multilib. For multilib, # also enable multiarch. Without explicit --enable-multiarch, pass-1 # compiler is configured as multilib/no-multiarch and pass-2/final # are multilib/multiarch (because gcc autodetects multiarch based on # multiple instances of crt*.o in the install directory - which do # not exist in pass-1). if [ "${CT_MULTILIB}" != "y" ]; then extra_config+=("--disable-multilib") else extra_config+=("--enable-multiarch") if [ -n "${CT_CC_GCC_MULTILIB_LIST}" ]; then extra_config+=("--with-multilib-list=${CT_CC_GCC_MULTILIB_LIST}") fi fi CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'" # We may need to modify host/build/target CFLAGS separately below. Note # that ${cflags} may refer either to build or host CFLAGS; they are provided # by the caller. cflags_for_build="${CT_CFLAGS_FOR_BUILD}" cflags_for_target="${CT_TARGET_CFLAGS}" # Clang's default bracket-depth is 256, and building GCC # requires somewhere between 257 and 512. if [ "${host}" = "${CT_BUILD}" ]; then if ${CT_BUILD}-gcc --version 2>&1 | grep clang; then cflags="$cflags -fbracket-depth=512" cflags_for_build="$cflags_for_build -fbracket-depth=512" fi else # FIXME we currently don't support clang as host compiler, only as build if ${CT_BUILD}-gcc --version 2>&1 | grep clang; then cflags_for_build="$cflags_for_build -fbracket-depth=512" fi fi # For non-sysrooted toolchain, GCC doesn't search except at the installation # prefix; in core-1/2 stage we use a temporary installation prefix - but # we may have installed something into the final prefix. This is less than ideal: # in the installation prefix GCC also handles subdirectories for multilibs # (e.g. first trying ${prefix}/include/${arch-triplet}) but # we can only pass the top level directory, so non-sysrooted build with libc # selection that doesn't merge the headers (i.e. musl, uClibc-ng) may not # work. Better suggestions welcome. if [ "${CT_USE_SYSROOT}" != "y" ]; then cflags_for_target="${cflags_for_target} -idirafter ${CT_HEADERS_DIR}" fi # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532). # Pass only user-specified CFLAGS/LDFLAGS in CFLAGS_FOR_TARGET/LDFLAGS_FOR_TARGET: during # the build of, for example, libatomic, GCC tried to compile multiple variants for runtime # selection and passing architecture/CPU selectors, as detemined by crosstool-NG, may # miscompile or outright fail. CT_DoExecLog CFG \ CC_FOR_BUILD="${CT_BUILD}-gcc" \ CFLAGS="${cflags}" \ CFLAGS_FOR_BUILD="${cflags_for_build}" \ CXXFLAGS="${cflags}" \ CXXFLAGS_FOR_BUILD="${cflags_for_build}" \ LDFLAGS="${core_LDFLAGS[*]}" \ CFLAGS_FOR_TARGET="${cflags_for_target}" \ CXXFLAGS_FOR_TARGET="${cflags_for_target}" \ LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \ ${CONFIG_SHELL} \ "${CT_SRC_DIR}/gcc/configure" \ --build=${CT_BUILD} \ --host=${host} \ --target=${CT_TARGET} \ --prefix="${prefix}" \ --with-local-prefix="${CT_SYSROOT_DIR}" \ "${extra_config[@]}" \ --enable-languages="${lang_list}" \ "${extra_user_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/gcc/BASE-VER" ]; then CT_DoExecLog CFG make ${CT_JOBSFLAGS} configure-libiberty CT_DoExecLog ALL make ${CT_JOBSFLAGS} -C libiberty libiberty.a CT_DoExecLog CFG make ${CT_JOBSFLAGS} configure-gcc configure-libcpp CT_DoExecLog ALL make ${CT_JOBSFLAGS} all-libcpp else CT_DoExecLog CFG make ${CT_JOBSFLAGS} configure-gcc configure-libcpp configure-build-libiberty CT_DoExecLog ALL make ${CT_JOBSFLAGS} all-libcpp all-build-libiberty fi # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here. if [ -d "${CT_SRC_DIR}/gcc/libdecnumber" ]; then CT_DoExecLog CFG make ${CT_JOBSFLAGS} configure-libdecnumber CT_DoExecLog ALL make ${CT_JOBSFLAGS} -C libdecnumber libdecnumber.a fi # HACK: gcc-4.8 uses libbacktrace to make libgcc.mvars, so make it here. if [ -d "${CT_SRC_DIR}/gcc/libbacktrace" ]; then CT_DoExecLog CFG make ${CT_JOBSFLAGS} configure-libbacktrace CT_DoExecLog ALL make ${CT_JOBSFLAGS} -C libbacktrace fi libgcc_rule="libgcc.mvars" core_targets=( gcc target-libgcc ) # On bare metal and canadian build the host-compiler is used when # actually the build-system compiler is required. Choose the correct # compilers for canadian build and use the defaults on other # configurations. if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \ CXX_FOR_BUILD=${CT_BUILD}-g++ \ GCC_FOR_TARGET=${CT_TARGET}-${CT_CC}" else repair_cc="" fi CT_DoExecLog ALL make ${CT_JOBSFLAGS} -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 if [ "${build_libgfortran}" = "yes" \ -a "${CT_CC_LANG_FORTRAN}" = "y" \ ]; then core_targets+=( target-libgfortran ) fi core_targets_all="${core_targets[@]/#/all-}" core_targets_install="${core_targets[@]/#/install-}" case "${build_step}" in gcc_build|gcc_host) core_targets_all=all core_targets_install=install ;; esac CT_DoLog EXTRA "Building ${log_txt}" CT_DoExecLog ALL make ${CT_JOBSFLAGS} ${core_targets_all} # Do not pass ${CT_JOBSFLAGS} here: recent GCC builds have been failing # in parallel 'make install' at random locations: libitm, libcilk, # always for the files that are installed more than once to the same # location (such as libitm.info). # The symptom is that the install command fails with "File exists" # error; running the same command manually succeeds. It looks like # attempts to remove the destination and re-create it, but another # install gets in the way. CT_DoLog EXTRA "Installing ${log_txt}" CT_DoExecLog ALL make ${core_targets_install} # Remove the libtool "pseudo-libraries": having them in the installed # tree makes the libtoolized utilities that are built next assume # that, for example, libsupc++ is an "accessory library", and not include # -lsupc++ to the link flags. That breaks ltrace, for example. CT_DoLog EXTRA "Housekeeping for core gcc compiler" CT_Pushd "${prefix}" find . -type f -name "*.la" -exec rm {} \; |CT_DoLog ALL CT_Popd if [ "${build_manuals}" = "yes" ]; then CT_DoLog EXTRA "Building the GCC manuals" CT_DoExecLog ALL make pdf html CT_DoLog EXTRA "Installing the GCC manuals" CT_DoExecLog ALL make install-{pdf,html}-gcc fi # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-${CT_CC} to always be able # to call the C compiler with the same, somewhat canonical name. # check whether compiler has an extension file="$( ls -1 "${prefix}/bin/${CT_TARGET}-${CT_CC}."* 2>/dev/null || true )" [ -z "${file}" ] || ext=".${file##*.}" if [ -f "${prefix}/bin/${CT_TARGET}-${CT_CC}${ext}" ]; then CT_DoExecLog ALL ln -sfv "${CT_TARGET}-${CT_CC}${ext}" "${prefix}/bin/${CT_TARGET}-cc${ext}" fi cc_gcc_multilib_housekeeping cc="${prefix}/bin/${CT_TARGET}-${CT_CC}" \ host="${host}" # If binutils want the LTO plugin, point them to it if [ -d "${CT_PREFIX_DIR}/lib/bfd-plugins" -a "${build_step}" = "gcc_host" ]; then local gcc_version=$(cat "${CT_SRC_DIR}/gcc/gcc/BASE-VER" ) CT_DoExecLog ALL ln -sfv "../../libexec/gcc/${CT_TARGET}/${gcc_version}/liblto_plugin.so" \ "${CT_PREFIX_DIR}/lib/bfd-plugins/liblto_plugin.so" fi } #------------------------------------------------------------------------------ # Build complete gcc to run on build do_cc_for_build() { local -a build_final_opts local build_final_backend # If native or simple cross toolchain is being built, then build==host; # nothing to do. case "${CT_TOOLCHAIN_TYPE}" in native|cross) return 0;; esac build_final_opts+=( "host=${CT_BUILD}" ) build_final_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" ) build_final_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" ) build_final_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" ) build_final_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" ) build_final_opts+=( "lang_list=$( cc_gcc_lang_list )" ) build_final_opts+=( "build_step=gcc_build" ) if [ "${CT_BARE_METAL}" = "y" ]; then # In the tests I've done, bare-metal was not impacted by the # lack of such a compiler, but better safe than sorry... build_final_opts+=( "mode=baremetal" ) build_final_opts+=( "build_libgcc=yes" ) build_final_opts+=( "build_libstdcxx=yes" ) build_final_opts+=( "build_libgfortran=yes" ) if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then build_final_opts+=( "build_staticlinked=yes" ) fi build_final_backend=do_gcc_core_backend else build_final_backend=do_gcc_backend fi CT_DoStep INFO "Installing final gcc compiler for build" CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-gcc-final-build-${CT_BUILD}" "${build_final_backend}" "${build_final_opts[@]}" CT_Popd CT_EndStep } gcc_movelibs() { local multi_flags multi_dir multi_os_dir multi_os_dir_gcc multi_root multi_index multi_count local gcc_dir dst_dir canon_root canon_prefix local rel for arg in "$@"; do eval "${arg// /\\ }" done # GCC prints the sysroot in canonicalized form, which may be different if there # is a symlink in the path. Since we need textual match to obtain a relative # subdirectory path, canonicalize the prefix directory. Since GCC's behavior # is not documented and hence may change at any time, canonicalize it too just # for the good measure. canon_root=$( cd "${multi_root}" && pwd -P ) canon_prefix=$( cd "${CT_PREFIX_DIR}" && pwd -P ) # Move only files, directories are for other multilibs. We're looking inside # GCC's directory structure, thus use unmangled multi_os_dir that GCC reports. gcc_dir="${CT_PREFIX_DIR}/${CT_TARGET}/lib/${multi_os_dir_gcc}" if [ ! -d "${gcc_dir}" ]; then # GCC didn't install anything outside of sysroot return fi # Depending on the selected libc, we may or may not have the ${multi_os_dir_gcc} # created by libc installation. If we do, use it. If we don't, use ${multi_os_dir} # to avoid creating an otherwise empty directory. dst_dir="${canon_root}/lib/${multi_os_dir_gcc}" if [ ! -d "${dst_dir}" ]; then dst_dir="${canon_root}/lib/${multi_os_dir}" fi CT_SanitizeVarDir dst_dir gcc_dir rel=$( echo "${gcc_dir#${CT_PREFIX_DIR}/}" | sed 's#[^/]\{1,\}#..#g' ) ls "${gcc_dir}" | while read f; do case "${f}" in *.ld) # Linker scripts remain in GCC's directory; elf2flt insists on # finding them there. continue ;; esac if [ -f "${gcc_dir}/${f}" ]; then CT_DoExecLog ALL mkdir -p "${dst_dir}" CT_DoExecLog ALL mv "${gcc_dir}/${f}" "${dst_dir}/${f}" CT_DoExecLog ALL ln -sf "${rel}/${dst_dir#${canon_prefix}/}/${f}" "${gcc_dir}/${f}" fi done } #------------------------------------------------------------------------------ # Build final gcc to run on host do_cc_for_host() { local -a final_opts local final_backend final_opts+=( "host=${CT_HOST}" ) final_opts+=( "prefix=${CT_PREFIX_DIR}" ) final_opts+=( "complibs=${CT_HOST_COMPLIBS_DIR}" ) final_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" ) final_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" ) final_opts+=( "lang_list=$( cc_gcc_lang_list )" ) final_opts+=( "build_step=gcc_host" ) if [ "${CT_BUILD_MANUALS}" = "y" ]; then final_opts+=( "build_manuals=yes" ) fi if [ "${CT_BARE_METAL}" = "y" ]; then final_opts+=( "mode=baremetal" ) final_opts+=( "build_libgcc=yes" ) final_opts+=( "build_libstdcxx=yes" ) final_opts+=( "build_libgfortran=yes" ) if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then final_opts+=( "build_staticlinked=yes" ) fi final_backend=do_gcc_core_backend else final_backend=do_gcc_backend fi CT_DoStep INFO "Installing final gcc compiler" CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-gcc-final" "${final_backend}" "${final_opts[@]}" CT_Popd # GCC installs stuff (including libgcc) into its own /lib dir, # outside of sysroot, breaking linking with -static-libgcc. # Fix up by moving the libraries into the sysroot. if [ "${CT_USE_SYSROOT}" = "y" ]; then CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-gcc-final-movelibs" CT_IterateMultilibs gcc_movelibs movelibs CT_Popd fi CT_EndStep } #------------------------------------------------------------------------------ # Build the final gcc # Usage: do_gcc_backend param=value [...] # 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 : cflags to use : string : (empty) # ldflags : ldflags to use : string : (empty) # lang_list : the list of languages to build : string : (empty) # build_manuals : whether to build manuals or not : bool : no do_gcc_backend() { local host local prefix local complibs local lang_list local cflags local cflags_for_build local ldflags local build_manuals local -a host_libstdcxx_flags local -a extra_config local -a final_LDFLAGS local tmp local arg for arg in "$@"; do eval "${arg// /\\ }" done CT_DoLog EXTRA "Configuring final gcc compiler" # Enable selected languages extra_config+=("--enable-languages=${lang_list}") for tmp in ARCH ABI CPU TUNE FPU FLOAT; do eval tmp="\${CT_ARCH_WITH_${tmp}}" if [ -n "${tmp}" ]; then extra_config+=("${tmp}") fi done [ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}") [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}") if [ "${CT_SHARED_LIBS}" != "y" ]; then extra_config+=("--disable-shared") fi case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in y) extra_config+=("--enable-sjlj-exceptions");; m) ;; "") extra_config+=("--disable-sjlj-exceptions");; esac if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then extra_config+=("--enable-__cxa_atexit") else extra_config+=("--disable-__cxa_atexit") fi if [ -n "${CT_CC_GCC_ENABLE_CXX_FLAGS}" ]; then extra_config+=("--enable-cxx-flags=${CT_CC_GCC_ENABLE_CXX_FLAGS}") fi if [ "${CT_THREADS}" = "none" ]; then extra_config+=(--disable-libatomic) fi if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then extra_config+=(--enable-libmudflap) else extra_config+=(--disable-libmudflap) fi if [ "${CT_CC_GCC_LIBGOMP}" = "y" ]; then extra_config+=(--enable-libgomp) else extra_config+=(--disable-libgomp) fi if [ "${CT_CC_GCC_LIBSSP}" = "y" ]; then extra_config+=(--enable-libssp) else extra_config+=(--disable-libssp) fi if [ "${CT_CC_GCC_LIBQUADMATH}" = "y" ]; then extra_config+=(--enable-libquadmath) extra_config+=(--enable-libquadmath-support) else extra_config+=(--disable-libquadmath) extra_config+=(--disable-libquadmath-support) fi if [ "${CT_CC_GCC_LIBSANITIZER}" = "y" ]; then extra_config+=(--enable-libsanitizer) else extra_config+=(--disable-libsanitizer) fi if [ "${CT_CC_GCC_HAS_LIBMPX}" = "y" ]; then if [ "${CT_CC_GCC_LIBMPX}" = "y" ]; then extra_config+=(--enable-libmpx) else extra_config+=(--disable-libmpx) fi fi final_LDFLAGS+=("${ldflags}") # *** WARNING ! *** # Keep this full if-else-if-elif-fi-fi block in sync # with the same block in do_gcc_core_backend, above. if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then final_LDFLAGS+=("-static") host_libstdcxx_flags+=("-static-libgcc") host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++") host_libstdcxx_flags+=("-lm") # Companion libraries are build static (eg !shared), so # the libstdc++ is not pulled automatically, although it # is needed. Shoe-horn it in our LDFLAGS # Ditto libm on some Fedora boxen final_LDFLAGS+=("-lstdc++") final_LDFLAGS+=("-lm") else if [ "${CT_CC_GCC_STATIC_LIBSTDCXX}" = "y" ]; then # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2 # build script # INFO: 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 host_libstdcxx_flags+=("-static-libgcc") host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic") host_libstdcxx_flags+=("-lm") 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 final_LDFLAGS+=("-lstdc++") final_LDFLAGS+=("-lm") fi extra_config+=("--with-gmp=${complibs}") extra_config+=("--with-mpfr=${complibs}") extra_config+=("--with-mpc=${complibs}") if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then if [ "${CT_ISL}" = "y" ]; then extra_config+=("--with-isl=${complibs}") fi if [ "${CT_CLOOG}" = "y" ]; then extra_config+=("--with-cloog=${complibs}") fi else extra_config+=("--with-isl=no") extra_config+=("--with-cloog=no") fi if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then extra_config+=("--enable-lto") else extra_config+=("--disable-lto") fi if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}") fi if [ "${CT_THREADS}" = "none" ]; then extra_config+=("--disable-threads") else if [ "${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 "${CT_CC_GCC_LDBL_128}" in y) extra_config+=("--with-long-double-128");; m) ;; "") extra_config+=("--without-long-double-128");; esac if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then extra_config+=( --enable-linker-build-id ) fi case "${CT_CC_GCC_LNK_HASH_STYLE}" in "") ;; *) extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );; esac case "${CT_CC_GCC_DEC_FLOATS}" in "") ;; *) extra_config+=( "--enable-decimal-float=${CT_CC_GCC_DEC_FLOATS}" );; esac if [ "${CT_CC_GCC_ENABLE_PLUGINS}" = "y" ]; then extra_config+=( --enable-plugin ) else extra_config+=( --disable-plugin ) fi if [ "${CT_CC_GCC_GOLD}" = "y" ]; then extra_config+=( --enable-gold ) fi case "${CT_ARCH}" in mips) case "${CT_CC_GCC_mips_llsc}" in y) extra_config+=( --with-llsc );; m) ;; *) extra_config+=( --without-llsc );; esac case "${CT_CC_GCC_mips_synci}" in y) extra_config+=( --with-synci );; m) ;; *) extra_config+=( --without-synci );; esac if [ "${CT_CC_GCC_mips_plt}" ]; then extra_config+=( --with-mips-plt ) fi ;; # ARCH is mips esac if [ "${CT_TOOLCHAIN_ENABLE_NLS}" = "y" ]; then extra_config+=("--with-libintl-prefix=${complibs}") else extra_config+=("--disable-nls") fi if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then extra_config+=("--with-system-zlib") fi case "${CT_CC_GCC_CONFIG_TLS}" in y) extra_config+=("--enable-tls");; m) ;; "") extra_config+=("--disable-tls");; esac # Some versions of gcc have a defective --enable-multilib. # Since that's the default, only pass --disable-multilib. if [ "${CT_MULTILIB}" != "y" ]; then extra_config+=("--disable-multilib") else extra_config+=("--enable-multiarch") if [ -n "${CT_CC_GCC_MULTILIB_LIST}" ]; then extra_config+=("--with-multilib-list=${CT_CC_GCC_MULTILIB_LIST}") fi fi CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'" # We may need to modify host/build CFLAGS separately below cflags_for_build="${cflags}" # Clang's default bracket-depth is 256, and building GCC # requires somewhere between 257 and 512. if [ "${host}" = "${CT_BUILD}" ]; then if ${CT_BUILD}-gcc --version 2>&1 | grep clang; then cflags="$cflags "-fbracket-depth=512 cflags_for_build="$cflags_for_build "-fbracket-depth=512 fi else # FIXME we currently don't support clang as host compiler, only as build if ${CT_BUILD}-gcc --version 2>&1 | grep clang; then cflags_for_build="$cflags_for_build "-fbracket-depth=512 fi fi # NB: not using CT_ALL_TARGET_CFLAGS/CT_ALL_TARGET_LDFLAGS here! # See do_gcc_core_backend for explanation. CT_DoExecLog CFG \ CC_FOR_BUILD="${CT_BUILD}-gcc" \ CFLAGS="${cflags}" \ CFLAGS_FOR_BUILD="${cflags_for_build}" \ CXXFLAGS="${cflags}" \ CXXFLAGS_FOR_BUILD="${cflags_for_build}" \ LDFLAGS="${final_LDFLAGS[*]}" \ CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \ CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \ LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \ ${CONFIG_SHELL} \ "${CT_SRC_DIR}/gcc/configure" \ --build=${CT_BUILD} \ --host=${host} \ --target=${CT_TARGET} \ --prefix="${prefix}" \ ${CT_CC_SYSROOT_ARG} \ "${extra_config[@]}" \ --with-local-prefix="${CT_SYSROOT_DIR}" \ --enable-long-long \ "${CT_CC_GCC_EXTRA_CONFIG_ARRAY[@]}" if [ "${CT_CANADIAN}" = "y" ]; then CT_DoLog EXTRA "Building libiberty" CT_DoExecLog ALL make ${CT_JOBSFLAGS} all-build-libiberty fi CT_DoLog EXTRA "Building final gcc compiler" CT_DoExecLog ALL make ${CT_JOBSFLAGS} all # See the note on issues with parallel 'make install' in GCC above. CT_DoLog EXTRA "Installing final gcc compiler" if [ "${CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES}" = "y" ]; then CT_DoExecLog ALL make install-strip else CT_DoExecLog ALL make install fi # Remove the libtool "pseudo-libraries": having them in the installed # tree makes the libtoolized utilities that are built next assume # that, for example, libsupc++ is an "accessory library", and not include # -lsupc++ to the link flags. That breaks ltrace, for example. CT_DoLog EXTRA "Housekeeping for final gcc compiler" CT_Pushd "${prefix}" find . -type f -name "*.la" -exec rm {} \; |CT_DoLog ALL CT_Popd if [ "${build_manuals}" = "yes" ]; then CT_DoLog EXTRA "Building the GCC manuals" CT_DoExecLog ALL make pdf html CT_DoLog EXTRA "Installing the GCC manuals" CT_DoExecLog ALL make install-{pdf,html}-gcc fi # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-${CT_CC} 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/${CT_TARGET}-${CT_CC}."* 2>/dev/null || true )" [ -z "${file}" ] || ext=".${file##*.}" if [ -f "${CT_PREFIX_DIR}/bin/${CT_TARGET}-${CT_CC}${ext}" ]; then CT_DoExecLog ALL ln -sfv "${CT_TARGET}-${CT_CC}${ext}" "${prefix}/bin/${CT_TARGET}-cc${ext}" fi cc_gcc_multilib_housekeeping cc="${prefix}/bin/${CT_TARGET}-${CT_CC}" \ host="${host}" # If binutils want the LTO plugin, point them to it if [ -d "${CT_PREFIX_DIR}/lib/bfd-plugins" -a "${build_step}" = "gcc_host" ]; then local gcc_version=$(cat "${CT_SRC_DIR}/gcc/gcc/BASE-VER" ) CT_DoExecLog ALL ln -sfv "../../libexec/gcc/${CT_TARGET}/${gcc_version}/liblto_plugin.so" \ "${CT_PREFIX_DIR}/lib/bfd-plugins/liblto_plugin.so" fi }