mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2025-01-09 06:22:42 +00:00
216 lines
8.1 KiB
Plaintext
216 lines
8.1 KiB
Plaintext
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# This file contains the functions common to glibc and eglibc
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# Build and install headers file
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# This is a no-op
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do_libc_headers() {
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:
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}
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# Build and install headers and start files
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do_libc_start_files() {
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CT_DoStep INFO "Installing C library headers / start files"
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mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
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cd "${CT_BUILD_DIR}/build-libc-startfiles"
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CT_DoLog EXTRA "Configuring C library"
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if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
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CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
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fi
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cross_cc=$(CT_Which "${CT_TARGET}-gcc")
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cross_cxx=$(CT_Which "${CT_TARGET}-g++")
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cross_ar=$(CT_Which "${CT_TARGET}-ar")
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cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib")
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CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
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CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'"
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CT_DoLog DEBUG "Using ar for target: '${cross_ar}'"
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CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'"
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BUILD_CC="${CT_BUILD}-gcc" \
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CC=${cross_cc} \
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CXX=${cross_cxx} \
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AR=${cross_ar} \
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RANLIB=${cross_ranlib} \
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CT_DoExecLog CFG \
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"${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \
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--prefix=/usr \
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--with-headers="${CT_HEADERS_DIR}" \
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--build="${CT_BUILD}" \
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--host="${CT_TARGET}" \
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--disable-profile \
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--without-gd \
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--without-cvs \
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--enable-add-ons
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CT_DoLog EXTRA "Installing C library headers"
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# use the 'install-headers' makefile target to install the
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# headers
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CT_DoExecLog ALL \
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make install-headers \
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install_root=${CT_SYSROOT_DIR} \
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install-bootstrap-headers=yes
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CT_DoLog EXTRA "Installing C library start files"
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# there are a few object files needed to link shared libraries,
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# which we build and install by hand
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CT_DoExecLog ALL mkdir -p ${CT_SYSROOT_DIR}/usr/lib
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CT_DoExecLog ALL make csu/subdir_lib
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CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \
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${CT_SYSROOT_DIR}/usr/lib
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# Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
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# However, since we will never actually execute its code,
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# it doesn't matter what it contains. So, treating '/dev/null'
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# as a C source file, we produce a dummy 'libc.so' in one step
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CT_DoExecLog ALL ${cross_cc} -nostdlib -nostartfiles -shared -x c /dev/null -o ${CT_SYSROOT_DIR}/usr/lib/libc.so
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CT_EndStep
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}
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# This function builds and install the full C library
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do_libc() {
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local -a extra_config
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CT_DoStep INFO "Installing C library"
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mkdir -p "${CT_BUILD_DIR}/build-libc"
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cd "${CT_BUILD_DIR}/build-libc"
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CT_DoLog EXTRA "Configuring C library"
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if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
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CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
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fi
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if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then
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OPTIMIZE=-Os
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else
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OPTIMIZE=-O2
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fi
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# Add some default glibc config options if not given by user.
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# We don't need to be conditional on wether the user did set different
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# values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
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extra_config+=("--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')")
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case "${CT_THREADS}" in
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nptl) extra_config+=("--with-__thread" "--with-tls");;
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linuxthreads) extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;
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none) extra_config+=("--without-__thread" "--without-nptl")
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*-tls*) ;;
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*) extra_config+=("--without-tls");;
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esac
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;;
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esac
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case "${CT_SHARED_LIBS}" in
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y) extra_config+=("--enable-shared");;
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*) extra_config+=("--disable-shared");;
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esac
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case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
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y,) extra_config+=("--with-fp");;
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,y) extra_config+=("--without-fp");;
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esac
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if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then
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extra_config+=("--disable-versioning")
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fi
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if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then
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extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")
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fi
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case "$(do_libc_add_ons_list ,)" in
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"") ;;
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*) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
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esac
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extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
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cross_cc=$(CT_Which "${CT_TARGET}-gcc")
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CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
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CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
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CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
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CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'"
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# ./configure is mislead by our tools override wrapper for bash
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# so just tell it where the real bash is _on_the_target_!
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# Notes:
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# - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL
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# - ${BASH_SHELL} is only used to set BASH
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# - ${BASH} is only used to set the shebang
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# in two scripts to run on the target
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# So we can safely bypass bash detection at compile time.
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# Should this change in a future eglibc release, we'd better
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# directly mangle the generated scripts _after_ they get built,
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# or even after they get installed... eglibc is such a sucker...
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echo "ac_cv_path_BASH_SHELL=/bin/bash" >config.cache
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BUILD_CC="${CT_BUILD}-gcc" \
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CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}" \
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CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
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AR=${CT_TARGET}-ar \
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RANLIB=${CT_TARGET}-ranlib \
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CT_DoExecLog CFG \
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"${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \
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--prefix=/usr \
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--with-headers="${CT_HEADERS_DIR}" \
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--build=${CT_BUILD} \
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--host=${CT_TARGET} \
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--disable-profile \
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--without-gd \
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--without-cvs \
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--cache-file=config.cache \
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"${extra_config[@]}" \
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${CT_LIBC_GLIBC_EXTRA_CONFIG}
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CT_DoLog EXTRA "Building C library"
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# eglibc build hacks
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# http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
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case "${CT_ARCH},${CT_ARCH_CPU}" in
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powerpc,8??)
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CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
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EGLIBC_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";;
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esac
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CT_DoExecLog ALL make ASFLAGS="${EGLIBC_BUILD_ASFLAGS}"
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CT_DoLog EXTRA "Installing C library"
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CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}"
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CT_EndStep
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}
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# This function finishes the C library install
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# This is a no-op
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do_libc_finish() {
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}
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# Build up the addons list, separated with $1
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do_libc_add_ons_list() {
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local sep="$1"
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local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,)
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case "${CT_THREADS}" in
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none) ;;
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*) addons_list="${addons_list}${sep}${CT_THREADS}";;
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esac
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[ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
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addons_list="${addons_list%%${sep}}"
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echo "${addons_list##${sep}}"
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}
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