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Diffstat (limited to 'scripts/build/libc/glibc-eglibc.sh-common')
| -rw-r--r-- | scripts/build/libc/glibc-eglibc.sh-common | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/scripts/build/libc/glibc-eglibc.sh-common b/scripts/build/libc/glibc-eglibc.sh-common new file mode 100644 index 0000000..2301ea8 --- /dev/null +++ b/scripts/build/libc/glibc-eglibc.sh-common @@ -0,0 +1,215 @@ +# This file contains the functions common to glibc and eglibc + +# Build and install headers file +# This is a no-op +do_libc_headers() { + : +} + +# Build and install headers and start files +do_libc_start_files() { + CT_DoStep INFO "Installing C library headers / start files" + + mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles" + cd "${CT_BUILD_DIR}/build-libc-startfiles" + + CT_DoLog EXTRA "Configuring C library" + + if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then + CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config + fi + + cross_cc=$(CT_Which "${CT_TARGET}-gcc") + cross_cxx=$(CT_Which "${CT_TARGET}-g++") + cross_ar=$(CT_Which "${CT_TARGET}-ar") + cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib") + + CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'" + CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'" + CT_DoLog DEBUG "Using ar for target: '${cross_ar}'" + CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'" + + BUILD_CC="${CT_BUILD}-gcc" \ + CC=${cross_cc} \ + CXX=${cross_cxx} \ + AR=${cross_ar} \ + RANLIB=${cross_ranlib} \ + CT_DoExecLog CFG \ + "${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \ + --prefix=/usr \ + --with-headers="${CT_HEADERS_DIR}" \ + --build="${CT_BUILD}" \ + --host="${CT_TARGET}" \ + --disable-profile \ + --without-gd \ + --without-cvs \ + --enable-add-ons + + CT_DoLog EXTRA "Installing C library headers" + + # use the 'install-headers' makefile target to install the + # headers + + CT_DoExecLog ALL \ + make install-headers \ + install_root=${CT_SYSROOT_DIR} \ + install-bootstrap-headers=yes + + CT_DoLog EXTRA "Installing C library start files" + + # there are a few object files needed to link shared libraries, + # which we build and install by hand + + CT_DoExecLog ALL mkdir -p ${CT_SYSROOT_DIR}/usr/lib + CT_DoExecLog ALL make csu/subdir_lib + CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \ + ${CT_SYSROOT_DIR}/usr/lib + + # Finally, 'libgcc_s.so' requires a 'libc.so' to link against. + # However, since we will never actually execute its code, + # it doesn't matter what it contains. So, treating '/dev/null' + # as a C source file, we produce a dummy 'libc.so' in one step + + CT_DoExecLog ALL ${cross_cc} -nostdlib -nostartfiles -shared -x c /dev/null -o ${CT_SYSROOT_DIR}/usr/lib/libc.so + + CT_EndStep +} + +# This function builds and install the full C library +do_libc() { + local -a extra_config + + CT_DoStep INFO "Installing C library" + + mkdir -p "${CT_BUILD_DIR}/build-libc" + cd "${CT_BUILD_DIR}/build-libc" + + CT_DoLog EXTRA "Configuring C library" + + if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then + CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config + fi + + if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then + OPTIMIZE=-Os + else + OPTIMIZE=-O2 + fi + + # Add some default glibc config options if not given by user. + # We don't need to be conditional on wether the user did set different + # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config + + extra_config+=("--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')") + + case "${CT_THREADS}" in + nptl) extra_config+=("--with-__thread" "--with-tls");; + linuxthreads) extra_config+=("--with-__thread" "--without-tls" "--without-nptl");; + none) extra_config+=("--without-__thread" "--without-nptl") + case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in + *-tls*) ;; + *) extra_config+=("--without-tls");; + esac + ;; + esac + + case "${CT_SHARED_LIBS}" in + y) extra_config+=("--enable-shared");; + *) extra_config+=("--disable-shared");; + esac + + case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in + y,) extra_config+=("--with-fp");; + ,y) extra_config+=("--without-fp");; + esac + + if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then + extra_config+=("--disable-versioning") + fi + + if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then + extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}") + fi + + case "$(do_libc_add_ons_list ,)" in + "") ;; + *) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");; + esac + + extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}" + + cross_cc=$(CT_Which "${CT_TARGET}-gcc") + + CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'" + CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'" + CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'" + CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'" + + # ./configure is mislead by our tools override wrapper for bash + # so just tell it where the real bash is _on_the_target_! + # Notes: + # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL + # - ${BASH_SHELL} is only used to set BASH + # - ${BASH} is only used to set the shebang + # in two scripts to run on the target + # So we can safely bypass bash detection at compile time. + # Should this change in a future eglibc release, we'd better + # directly mangle the generated scripts _after_ they get built, + # or even after they get installed... eglibc is such a sucker... + echo "ac_cv_path_BASH_SHELL=/bin/bash" >config.cache + + BUILD_CC="${CT_BUILD}-gcc" \ + CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}" \ + CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ + AR=${CT_TARGET}-ar \ + RANLIB=${CT_TARGET}-ranlib \ + CT_DoExecLog CFG \ + "${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \ + --prefix=/usr \ + --with-headers="${CT_HEADERS_DIR}" \ + --build=${CT_BUILD} \ + --host=${CT_TARGET} \ + --disable-profile \ + --without-gd \ + --without-cvs \ + --cache-file=config.cache \ + "${extra_config[@]}" \ + ${CT_LIBC_GLIBC_EXTRA_CONFIG} + + CT_DoLog EXTRA "Building C library" + + # eglibc build hacks + # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html + case "${CT_ARCH},${CT_ARCH_CPU}" in + powerpc,8??) + CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)" + EGLIBC_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";; + esac + + CT_DoExecLog ALL make ASFLAGS="${EGLIBC_BUILD_ASFLAGS}" + + CT_DoLog EXTRA "Installing C library" + + CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}" + + CT_EndStep +} + +# This function finishes the C library install +# This is a no-op +do_libc_finish() { + : +} + +# Build up the addons list, separated with $1 +do_libc_add_ons_list() { + local sep="$1" + local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,) + case "${CT_THREADS}" in + none) ;; + *) addons_list="${addons_list}${sep}${CT_THREADS}";; + esac + [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports" + addons_list="${addons_list%%${sep}}" + echo "${addons_list##${sep}}" +} |