yann@2270: # This file contains the functions common to glibc and eglibc yann@850: yann@2270: # Build and install headers and start files yann@850: do_libc_start_files() { yann@2271: local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}" yann@2271: yann@2277: CT_DoStep INFO "Installing C library headers & start files" yann@850: yann@850: mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles" yann@850: cd "${CT_BUILD_DIR}/build-libc-startfiles" yann@850: yann@850: CT_DoLog EXTRA "Configuring C library" yann@850: yann@2271: case "${CT_LIBC}" in yann@2271: eglibc) yann@2271: if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then yann@2271: CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config yann@2271: fi yann@2271: ;; yann@2271: esac avrac@1569: yann@850: cross_cc=$(CT_Which "${CT_TARGET}-gcc") yann@850: cross_cxx=$(CT_Which "${CT_TARGET}-g++") yann@850: cross_ar=$(CT_Which "${CT_TARGET}-ar") yann@850: cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib") yann@2271: yann@850: CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'" yann@850: CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'" yann@850: CT_DoLog DEBUG "Using ar for target: '${cross_ar}'" yann@850: CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'" yann@850: yann@2289: touch config.cache yann@2289: if [ "${CT_LIBC_GLIBC_FORCE_UNWIND}" = "y" ]; then yann@2289: echo "libc_cv_forced_unwind=yes" >>config.cache yann@2289: echo "libc_cv_c_cleanup=yes" >>config.cache yann@2289: fi yann@2289: yann@2289: # Pre-seed the configparms file with values from the config option yann@2289: printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms yann@2289: yann@1123: BUILD_CC="${CT_BUILD}-gcc" \ yann@1123: CC=${cross_cc} \ yann@1123: CXX=${cross_cxx} \ yann@1123: AR=${cross_ar} \ yann@1123: RANLIB=${cross_ranlib} \ anthony@2154: CT_DoExecLog CFG \ yann@2271: "${src_dir}/configure" \ yann@1123: --prefix=/usr \ yann@1123: --with-headers="${CT_HEADERS_DIR}" \ yann@1123: --build="${CT_BUILD}" \ yann@1123: --host="${CT_TARGET}" \ yann@2289: --cache-file="$(pwd)/config.cache" \ yann@1123: --disable-profile \ yann@1123: --without-gd \ yann@1123: --without-cvs \ yann@850: --enable-add-ons yann@850: yann@850: CT_DoLog EXTRA "Installing C library headers" yann@850: yann@850: # use the 'install-headers' makefile target to install the yann@850: # headers yann@2277: CT_DoExecLog ALL make ${JOBSFLAGS} \ yann@2277: install_root=${CT_SYSROOT_DIR} \ yann@2277: install-bootstrap-headers=yes \ yann@2277: install-headers yann@850: yann@2272: # For glibc, a few headers need to be manually installed yann@2272: if [ "${CT_LIBC}" = "glibc" ]; then yann@2272: # Two headers -- stubs.h and features.h -- aren't installed by install-headers, yann@2272: # so do them by hand. We can tolerate an empty stubs.h for the moment. yann@2272: # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html yann@2272: mkdir -p "${CT_HEADERS_DIR}/gnu" yann@2272: CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h" yann@2272: CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h" \ yann@2272: "${CT_HEADERS_DIR}/features.h" yann@2272: yann@2272: # Building the bootstrap gcc requires either setting inhibit_libc, or yann@2272: # having a copy of stdio_lim.h... see yann@2272: # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html yann@2272: CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h" yann@2272: yann@2272: # Following error building gcc-4.0.0's gcj: yann@2272: # error: bits/syscall.h: No such file or directory yann@2272: # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html yann@2272: # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html yann@2272: [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true yann@2272: fi yann@2272: yann@2313: if [ "${CT_THREADS}" = "nptl" ]; then yann@2313: CT_DoLog EXTRA "Installing C library start files" yann@850: yann@2313: # there are a few object files needed to link shared libraries, yann@2313: # which we build and install by hand yann@2313: CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/lib" yann@2313: CT_DoExecLog ALL make ${JOBSFLAGS} csu/subdir_lib yann@2313: CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \ yann@2313: "${CT_SYSROOT_DIR}/usr/lib" yann@850: yann@2313: # Finally, 'libgcc_s.so' requires a 'libc.so' to link against. yann@2313: # However, since we will never actually execute its code, yann@2313: # it doesn't matter what it contains. So, treating '/dev/null' yann@2313: # as a C source file, we produce a dummy 'libc.so' in one step yann@2313: CT_DoExecLog ALL "${cross_cc}" -nostdlib \ yann@2313: -nostartfiles \ yann@2313: -shared \ yann@2313: -x c /dev/null \ yann@2313: -o "${CT_SYSROOT_DIR}/usr/lib/libc.so" yann@2313: fi # threads == nptl yann@850: yann@850: CT_EndStep yann@850: } yann@850: yann@2270: # This function builds and install the full C library yann@850: do_libc() { yann@2271: local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}" yann@2276: local extra_cc_args yann@1478: local -a extra_config yann@2271: local -a extra_make_args yann@2312: local glibc_cflags yann@1478: yann@850: CT_DoStep INFO "Installing C library" yann@850: yann@850: mkdir -p "${CT_BUILD_DIR}/build-libc" yann@850: cd "${CT_BUILD_DIR}/build-libc" yann@850: yann@850: CT_DoLog EXTRA "Configuring C library" yann@850: yann@2271: case "${CT_LIBC}" in yann@2271: eglibc) yann@2271: if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then yann@2271: CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config yann@2271: fi yann@2271: if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then yann@2271: OPTIMIZE=-Os yann@2271: else yann@2271: OPTIMIZE=-O2 yann@2271: fi yann@2271: ;; yann@2276: glibc) yann@2276: # glibc can't be built without -O2 (reference needed!) yann@2276: OPTIMIZE=-O2 yann@2276: # Also, if those two are missing, iconv build breaks yann@2276: extra_config+=( --disable-debug --disable-sanity-checks ) yann@2276: ;; yann@2271: esac richard@1796: yann@850: # Add some default glibc config options if not given by user. yann@850: # We don't need to be conditional on wether the user did set different yann@850: # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config yann@850: yann@2273: extra_config+=("$(do_libc_min_kernel_config)") yann@850: yann@850: case "${CT_THREADS}" in yann@1478: nptl) extra_config+=("--with-__thread" "--with-tls");; yann@1478: linuxthreads) extra_config+=("--with-__thread" "--without-tls" "--without-nptl");; yann@1478: none) extra_config+=("--without-__thread" "--without-nptl") yann@850: case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in yann@850: *-tls*) ;; yann@1478: *) extra_config+=("--without-tls");; yann@850: esac yann@850: ;; yann@850: esac yann@850: yann@850: case "${CT_SHARED_LIBS}" in yann@1478: y) extra_config+=("--enable-shared");; yann@1478: *) extra_config+=("--disable-shared");; yann@850: esac yann@850: yann@850: case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in yann@1478: y,) extra_config+=("--with-fp");; yann@1478: ,y) extra_config+=("--without-fp");; yann@850: esac yann@850: bryanhundven@2180: if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then bryanhundven@2180: extra_config+=("--disable-versioning") bryanhundven@2180: fi bryanhundven@2180: bryanhundven@2181: if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then bryanhundven@2181: extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}") bryanhundven@2181: fi bryanhundven@2181: yann@850: case "$(do_libc_add_ons_list ,)" in yann@850: "") ;; yann@1478: *) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");; yann@850: esac yann@850: yann@850: extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}" yann@850: yann@2289: touch config.cache yann@2289: if [ "${CT_LIBC_GLIBC_FORCE_UNWIND}" = "y" ]; then yann@2289: echo "libc_cv_forced_unwind=yes" >>config.cache yann@2289: echo "libc_cv_c_cleanup=yes" >>config.cache yann@2289: fi yann@2289: yann@2276: # Pre-seed the configparms file with values from the config option yann@2276: printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms yann@2276: yann@850: cross_cc=$(CT_Which "${CT_TARGET}-gcc") yann@850: yann@850: CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'" yann@850: CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'" yann@1478: CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'" yann@850: CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'" yann@850: yann@2312: glibc_cflags="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}" yann@2312: case "${CT_LIBC_ENABLE_FORTIFIED_BUILD}" in yann@2312: y) ;; yann@2312: *) glibc_cflags+=" -U_FORTIFY_SOURCE";; yann@2312: esac yann@2312: bryanhundven@2229: # ./configure is mislead by our tools override wrapper for bash bryanhundven@2229: # so just tell it where the real bash is _on_the_target_! bryanhundven@2229: # Notes: bryanhundven@2229: # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL bryanhundven@2229: # - ${BASH_SHELL} is only used to set BASH bryanhundven@2229: # - ${BASH} is only used to set the shebang bryanhundven@2229: # in two scripts to run on the target bryanhundven@2229: # So we can safely bypass bash detection at compile time. bryanhundven@2229: # Should this change in a future eglibc release, we'd better bryanhundven@2229: # directly mangle the generated scripts _after_ they get built, bryanhundven@2229: # or even after they get installed... eglibc is such a sucker... yann@2289: echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache bryanhundven@2229: yann@2276: # Configure with --prefix the way we want it on the target... yann@2276: # There are a whole lot of settings here. You'll probably want yann@2276: # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG yann@2276: # Compare these options with the ones used when installing the glibc headers above - they're different. yann@2276: # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" yann@2276: # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. yann@2276: # Set BUILD_CC, or we won't be able to build datafiles yann@2276: yann@1041: BUILD_CC="${CT_BUILD}-gcc" \ yann@2312: CFLAGS="${glibc_cflags}" \ yann@850: CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ yann@850: AR=${CT_TARGET}-ar \ yann@850: RANLIB=${CT_TARGET}-ranlib \ anthony@2154: CT_DoExecLog CFG \ yann@2271: "${src_dir}/configure" \ yann@850: --prefix=/usr \ yann@1041: --build=${CT_BUILD} \ yann@850: --host=${CT_TARGET} \ yann@2289: --cache-file="$(pwd)/config.cache" \ yann@2276: --without-cvs \ yann@850: --disable-profile \ yann@850: --without-gd \ yann@2276: --with-headers="${CT_HEADERS_DIR}" \ yann@1478: "${extra_config[@]}" \ yann@850: ${CT_LIBC_GLIBC_EXTRA_CONFIG} yann@850: yann@2276: # build hacks yann@2276: case "${CT_ARCH},${CT_ARCH_CPU}" in yann@2276: powerpc,8??) yann@2276: # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html yann@2276: CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)" yann@2276: extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" ) yann@2271: ;; yann@1328: esac yann@1328: yann@2276: CT_DoLog EXTRA "Building C library" yann@2277: CT_DoExecLog ALL make ${JOBSFLAGS} \ yann@2276: "${extra_make_args[@]}" \ yann@2276: all yann@850: yann@850: CT_DoLog EXTRA "Installing C library" yann@2277: CT_DoExecLog ALL make ${JOBSFLAGS} \ yann@2276: "${extra_make_args[@]}" \ yann@2276: install_root="${CT_SYSROOT_DIR}" \ yann@2276: install yann@850: yann@850: CT_EndStep yann@850: } yann@850: yann@2270: # This function finishes the C library install yann@2270: # This is a no-op yann@850: do_libc_finish() { yann@850: : yann@850: } yann@850: yann@850: # Build up the addons list, separated with $1 yann@850: do_libc_add_ons_list() { yann@850: local sep="$1" yann@2274: local addons_list="$( echo "${CT_LIBC_ADDONS_LIST}" \ yann@2274: |sed -r -e "s/[[:space:],]/${sep}/g;" \ yann@2274: )" yann@850: case "${CT_THREADS}" in yann@850: none) ;; yann@850: *) addons_list="${addons_list}${sep}${CT_THREADS}";; yann@850: esac yann@850: [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports" yann@2274: # Remove duplicate, leading and trailing separators yann@2274: echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;" yann@850: } yann@2273: yann@2273: # Compute up the minimum supported Linux kernel version yann@2273: do_libc_min_kernel_config() { yann@2273: local min_kernel_config yann@2273: yann@2273: case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in yann@2273: *--enable-kernel*) ;; yann@2273: *) if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then yann@2273: # We can't rely on the kernel version from the configuration, yann@2273: # because it might not be available if the user uses pre-installed yann@2273: # headers. On the other hand, both method will have the kernel yann@2279: # version installed in "usr/include/linux/version.h" in the sysroot. yann@2273: # Parse that instead of having two code-paths. yann@2273: version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h" yann@2273: if [ ! -f "${version_code_file}" -o ! -r "${version_code_file}" ]; then yann@2273: CT_Abort "Linux version is unavailable in installed headers files" yann@2273: fi yann@2273: version_code="$( grep -E LINUX_VERSION_CODE "${version_code_file}" \ yann@2273: |cut -d ' ' -f 3 \ yann@2273: )" yann@2273: version=$(((version_code>>16)&0xFF)) yann@2273: patchlevel=$(((version_code>>8)&0xFF)) yann@2273: sublevel=$((version_code&0xFF)) yann@2273: min_kernel_config="${version}.${patchlevel}.${sublevel}" yann@2273: elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then yann@2273: # Trim the fourth part of the linux version, keeping only the first three numbers yann@2276: min_kernel_config="$( echo "${CT_LIBC_GLIBC_MIN_KERNEL_VERSION}" \ yann@2276: |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;' \ yann@2273: )" yann@2273: fi yann@2273: echo "--enable-kernel=${min_kernel_config}" yann@2273: ;; yann@2273: esac yann@2273: }