mirror of
https://github.com/crosstool-ng/crosstool-ng.git
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7186e39f32
... as its help message says in menuconfig. Signed-off-by: Alexey Neyman <stilor@att.net>
530 lines
22 KiB
Bash
530 lines
22 KiB
Bash
# This file adds functions to build glibc
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# Copyright 2007 Yann E. MORIN
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# Licensed under the GPL v2. See COPYING in the root of this package
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do_libc_get() {
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local date
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local version
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# Main source
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if [ "${CT_LIBC_GLIBC_CUSTOM}" = "y" ]; then
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CT_GetCustom "glibc" "${CT_LIBC_GLIBC_CUSTOM_VERSION}" \
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"${CT_LIBC_GLIBC_CUSTOM_LOCATION}"
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else
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case "${CT_LIBC_VERSION}" in
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linaro-*)
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CT_GetLinaro "glibc" "${CT_LIBC_VERSION}"
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;;
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*)
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CT_GetFile "glibc-${CT_LIBC_VERSION}" \
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{http,ftp,https}://ftp.gnu.org/gnu/glibc \
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ftp://{sourceware.org,gcc.gnu.org}/pub/glibc/{releases,snapshots}
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;;
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esac
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fi
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return 0
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}
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do_libc_extract() {
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CT_Extract "${CT_LIBC}-${CT_LIBC_VERSION}"
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CT_Pushd "${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
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# Custom glibc won't get patched, because CT_GetCustom
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# marks custom glibc as patched.
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CT_Patch nochdir "${CT_LIBC}" "${CT_LIBC_VERSION}"
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# The configure files may be older than the configure.in files
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# if using a snapshot (or even some tarballs). Fake them being
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# up to date.
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find . -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
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CT_Popd
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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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# Start files and Headers should be configured the same way as the
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# final libc, but built and installed differently.
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do_libc_backend libc_mode=startfiles
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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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do_libc_backend libc_mode=final
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}
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do_libc_post_cc() {
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:
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}
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# This backend builds the C library once for each multilib
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# variant the compiler gives us
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# Usage: do_libc_backend param=value [...]
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# Parameter : Definition : Type : Default
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# libc_mode : 'startfiles' or 'final' : string : (none)
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do_libc_backend() {
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local libc_mode
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local arg
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for arg in "$@"; do
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eval "${arg// /\\ }"
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done
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case "${libc_mode}" in
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startfiles)
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CT_DoStep INFO "Installing C library headers & start files"
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;;
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final)
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CT_DoStep INFO "Installing C library"
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;;
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*)
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CT_Abort "Unsupported (or unset) libc_mode='${libc_mode}'"
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;;
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esac
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc-${libc_mode}"
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CT_IterateMultilibs do_libc_backend_once multilib libc_mode="${libc_mode}"
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CT_Popd
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CT_EndStep
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}
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# This backend builds the C library once
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# Usage: do_libc_backend_once param=value [...]
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# Parameter : Definition : Type
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# libc_mode : 'startfiles' or 'final' : string : (empty)
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# multi_* : as defined in CT_IterateMultilibs : (varies) :
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do_libc_backend_once() {
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local multi_flags multi_dir multi_os_dir multi_root multi_index multi_count
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local build_cflags build_cppflags build_ldflags
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local startfiles_dir
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local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
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local -a extra_config
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local -a extra_make_args
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local glibc_cflags
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local arg opt
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for arg in "$@"; do
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eval "${arg// /\\ }"
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done
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CT_DoStep INFO "Building for multilib ${multi_index}/${multi_count}: '${multi_flags}'"
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# Ensure sysroot (with suffix, if applicable) exists
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CT_DoExecLog ALL mkdir -p "${multi_root}"
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# Adjust target tuple according GLIBC quirks
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CT_DoArchGlibcAdjustTuple multi_target
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# Glibc seems to be smart enough to know about the cases that can coexist
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# in the same root and installs them into proper multilib-os directory; all
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# we need is to point to the right root. We do need to handle multilib-os
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# here, though, for the first pass where we install crt*.o and a dummy
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# libc.so; we therefore install it to the most specific location of
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# <sysroot>/<suffix>/usr/lib/<multilib-os> where it is least likely to clash
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# with other multilib variants. We then remove these temporary files at
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# the beginning of the libc-final step and allow glibc to install them
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# where it thinks is proper.
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startfiles_dir="${multi_root}/usr/lib/${multi_os_dir}"
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CT_SanitizeVarDir startfiles_dir
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if [ "${libc_mode}" = "final" ]; then
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CT_DoLog EXTRA "Cleaning up start files"
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CT_DoExecLog ALL rm -f "${startfiles_dir}/crt1.o" \
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"${startfiles_dir}/crti.o" \
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"${startfiles_dir}/crtn.o" \
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"${startfiles_dir}/libc.so"
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fi
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CT_DoLog EXTRA "Configuring C library"
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# Also, if those two are missing, iconv build breaks
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extra_config+=( --disable-debug --disable-sanity-checks )
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# always include rpc, the user can still override it with TI-RPC
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extra_config+=( --enable-obsolete-rpc )
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# Add some default glibc config options if not given by user.
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# We don't need to be conditional on whether the user did set different
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# values, as they CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY is passed after
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# extra_config
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extra_config+=("$(do_libc_min_kernel_config)")
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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_ARRAY[*]}" 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 "${CT_SHARED_LIBS}" in
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y) extra_config+=("--enable-shared");;
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*) extra_config+=("--disable-shared");;
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esac
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if [ "${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 "$(do_libc_add_ons_list ,)" in
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"") extra_config+=("--enable-add-ons=no");;
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*) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
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esac
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extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
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[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
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touch config.cache
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if [ "${CT_LIBC_GLIBC_FORCE_UNWIND}" = "y" ]; then
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echo "libc_cv_forced_unwind=yes" >>config.cache
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echo "libc_cv_c_cleanup=yes" >>config.cache
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fi
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# Pre-seed the configparms file with values from the config option
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printf "%s\n" "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
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# glibc can't be built without -O2 (reference needed!)
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glibc_cflags+=" -O2"
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case "${CT_LIBC_ENABLE_FORTIFIED_BUILD}" in
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y) ;;
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*) glibc_cflags+=" -U_FORTIFY_SOURCE";;
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esac
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# In the order of increasing precedence. Flags common to compiler and linker.
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glibc_cflags+=" ${CT_TARGET_CFLAGS}"
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glibc_cflags+=" ${CT_LIBC_GLIBC_EXTRA_CFLAGS}"
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glibc_cflags+=" ${multi_flags}"
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# Analyze the resulting options for any extra configure switches to throw in.
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for opt in ${glibc_cflags}; do
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case ${opt} in
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-mhard-float|-mfloat-abi=hard|-mfloat-abi=softfp|-mno-soft-float|-mfpu)
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extra_config+=("--with-fp")
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;;
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-msoft-float|-mfloat-abi=soft|-mno-float|-mno-fpu)
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extra_config+=("--without-fp")
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;;
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esac
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done
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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 glibc 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...
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echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
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# Configure with --prefix the way we want it on the target...
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# There are a whole lot of settings here. You'll probably want
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# to read up on what they all mean, and customize a bit, possibly
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# by setting GLIBC_EXTRA_CONFIG_ARRAY.
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# Compare these options with the ones used when installing
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# the glibc headers above - they're different.
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# Adding "--without-gd" option to avoid error "memusagestat.c:36:16:
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# gd.h: No such file or directory"
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# See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
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# Set BUILD_CC, or we won't be able to build datafiles
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# Run explicitly through CONFIG_SHELL, or the build breaks badly (loop-of-death)
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# when the shell is not bash... Sigh... :-(
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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 : '${extra_config[*]}'"
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CT_DoLog DEBUG "Extra CFLAGS passed : '${glibc_cflags}'"
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CT_DoLog DEBUG "Placing startfiles into : '${startfiles_dir}'"
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CT_DoLog DEBUG "Configuring with --host : '${multi_target}'"
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# CFLAGS are only applied when compiling .c files. .S files are compiled with ASFLAGS,
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# but they are not passed by configure. Thus, pass everything in CC instead.
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CT_DoExecLog CFG \
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BUILD_CC=${CT_BUILD}-gcc \
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CC="${CT_TARGET}-${CT_CC} ${glibc_cflags}" \
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AR=${CT_TARGET}-ar \
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RANLIB=${CT_TARGET}-ranlib \
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"${CONFIG_SHELL}" \
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"${src_dir}/configure" \
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--prefix=/usr \
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--build=${CT_BUILD} \
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--host=${multi_target} \
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--cache-file="$(pwd)/config.cache" \
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--without-cvs \
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--disable-profile \
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--without-gd \
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--with-headers="${CT_HEADERS_DIR}" \
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"${extra_config[@]}" \
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"${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[@]}"
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# build hacks
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case "${CT_ARCH},${CT_ARCH_CPU}" in
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powerpc,8??)
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# http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
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CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
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extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" )
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;;
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esac
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build_cflags="${CT_CFLAGS_FOR_BUILD}"
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build_cppflags=
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build_ldflags="${CT_LDFLAGS_FOR_BUILD}"
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case "$CT_BUILD" in
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*mingw*|*cygwin*|*msys*|*darwin*)
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# When installing headers on Cygwin, Darwin, MSYS2 and MinGW-w64 sunrpc needs
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# gettext for building cross-rpcgen.
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build_cppflags="${build_cppflags} -I${CT_BUILDTOOLS_PREFIX_DIR}/include/"
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build_ldflags="${build_ldflags} -lintl -liconv"
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;;
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esac
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extra_make_args+=( "BUILD_CFLAGS=${build_cflags}" )
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extra_make_args+=( "BUILD_CPPFLAGS=${build_cppflags}" )
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extra_make_args+=( "BUILD_LDFLAGS=${build_ldflags}" )
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if [ "${libc_mode}" = "startfiles" -a ! -r "${multi_root}/.libc_headers_installed" ]; then
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CT_DoLog EXTRA "Installing C library headers"
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CT_DoExecLog ALL touch "${multi_root}/.libc_headers_installed"
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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 make ${JOBSFLAGS} \
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install_root=${multi_root} \
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install-bootstrap-headers=yes \
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"${extra_make_args[@]}" \
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install-headers
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# For glibc, a few headers need to be manually installed
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if [ "${CT_LIBC}" = "glibc" ]; then
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# Two headers -- stubs.h and features.h -- aren't installed by install-headers,
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# so do them by hand. We can tolerate an empty stubs.h for the moment.
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# See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
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mkdir -p "${CT_HEADERS_DIR}/gnu"
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CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
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CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h" \
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"${CT_HEADERS_DIR}/features.h"
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# Building the bootstrap gcc requires either setting inhibit_libc, or
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# having a copy of stdio_lim.h... see
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# http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
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CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
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# Following error building gcc-4.0.0's gcj:
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# error: bits/syscall.h: No such file or directory
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# solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
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# but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
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# Of course, only copy it if it does not already exist
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case "${CT_ARCH}" in
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arm) ;;
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*) if [ -f "${CT_HEADERS_DIR}/bits/syscall.h" ]; then
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CT_DoLog ALL "Not over-writing existing bits/syscall.h"
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elif [ -f "misc/bits/syscall.h" ]; then
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CT_DoExecLog ALL cp -v "misc/bits/syscall.h" \
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"${CT_HEADERS_DIR}/bits/syscall.h"
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else
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# "Old" glibces do not have the above file,
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# but provide this one:
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CT_DoExecLog ALL cp -v "misc/syscall-list.h" \
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"${CT_HEADERS_DIR}/bits/syscall.h"
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fi
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;;
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esac
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fi
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elif [ "${libc_mode}" = "final" -a -r "${multi_root}/.libc_headers_installed" ]; then
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CT_DoExecLog ALL rm -f "${multi_root}/.libc_headers_installed"
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fi # installing headers
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if [ "${libc_mode}" = "startfiles" ]; then
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if [ "${CT_THREADS}" = "nptl" ]; then
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CT_DoLog EXTRA "Installing C library start files"
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# there are a few object files needed to link shared libraries,
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# which we build and install by hand
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CT_DoExecLog ALL mkdir -p "${startfiles_dir}"
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CT_DoExecLog ALL make ${JOBSFLAGS} \
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"${extra_make_args[@]}" \
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csu/subdir_lib
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CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \
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"${startfiles_dir}"
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# Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
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# However, since we will never actually execute its code,
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# it doesn't matter what it contains. So, treating '/dev/null'
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# as a C source file, we produce a dummy 'libc.so' in one step
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CT_DoExecLog ALL "${CT_TARGET}-${CT_CC}" ${multi_flags} \
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-nostdlib \
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-nostartfiles \
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-shared \
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-x c /dev/null \
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-o "${startfiles_dir}/libc.so"
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fi # threads == nptl
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fi # libc_mode = startfiles
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if [ "${libc_mode}" = "final" ]; then
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CT_DoLog EXTRA "Building C library"
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CT_DoExecLog ALL make ${JOBSFLAGS} \
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"${extra_make_args[@]}" \
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all
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CT_DoLog EXTRA "Installing C library"
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CT_DoExecLog ALL make ${JOBSFLAGS} \
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"${extra_make_args[@]}" \
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install_root="${multi_root}" \
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install
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if [ "${CT_BUILD_MANUALS}" = "y" -a "${multi_index}" = "${multi_count}" ]; then
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# We only need to build the manuals once. Only build them on the
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# last multilib target. If it's not multilib, it will happen on the
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# only target.
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CT_DoLog EXTRA "Building and installing the C library manual"
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# Omit JOBSFLAGS as GLIBC has problems building the
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# manuals in parallel
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CT_DoExecLog ALL make pdf html
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CT_DoExecLog ALL mkdir -p ${CT_PREFIX_DIR}/share/doc
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CT_DoExecLog ALL cp -av ${src_dir}/manual/*.pdf \
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${src_dir}/manual/libc \
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${CT_PREFIX_DIR}/share/doc
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fi
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if [ "${CT_LIBC_LOCALES}" = "y" -a "${multi_index}" = "${multi_count}" ]; then
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do_libc_locales
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fi
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fi # libc_mode = final
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CT_EndStep
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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 "${CT_LIBC_ADDONS_LIST}" \
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|sed -r -e "s/[[:space:],]/${sep}/g;" \
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)"
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if [ "${CT_LIBC_GLIBC_2_20_or_later}" != "y" ]; then
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case "${CT_THREADS}" in
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none) ;;
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*) addons_list="${addons_list}${sep}${CT_THREADS}";;
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esac
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fi
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[ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
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# Remove duplicate, leading and trailing separators
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echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"
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}
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# Compute up the minimum supported Linux kernel version
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do_libc_min_kernel_config() {
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local min_kernel_config
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[*]}" in
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*--enable-kernel*) ;;
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*) if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
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# We can't rely on the kernel version from the configuration,
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# because it might not be available if the user uses pre-installed
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# headers. On the other hand, both method will have the kernel
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# version installed in "usr/include/linux/version.h" in the sysroot.
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# Parse that instead of having two code-paths.
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version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"
|
|
if [ ! -f "${version_code_file}" -o ! -r "${version_code_file}" ]; then
|
|
CT_Abort "Linux version is unavailable in installed headers files"
|
|
fi
|
|
version_code="$(grep -E LINUX_VERSION_CODE "${version_code_file}" \
|
|
|cut -d' ' -f 3 \
|
|
)"
|
|
version=$(((version_code>>16)&0xFF))
|
|
patchlevel=$(((version_code>>8)&0xFF))
|
|
sublevel=$((version_code&0xFF))
|
|
min_kernel_config="${version}.${patchlevel}.${sublevel}"
|
|
elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then
|
|
# Trim the fourth part of the linux version, keeping only the first three numbers
|
|
min_kernel_config="$( echo "${CT_LIBC_GLIBC_MIN_KERNEL_VERSION}" \
|
|
|sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;' \
|
|
)"
|
|
fi
|
|
echo "--enable-kernel=${min_kernel_config}"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
# Build and install the libc locales
|
|
do_libc_locales() {
|
|
local src_dir="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}"
|
|
local -a extra_config
|
|
local glibc_cflags
|
|
|
|
mkdir -p "${CT_BUILD_DIR}/build-localedef"
|
|
cd "${CT_BUILD_DIR}/build-localedef"
|
|
|
|
CT_DoLog EXTRA "Configuring C library localedef"
|
|
|
|
# Versions that don't support --with-pkgversion or --with-bugurl will cause
|
|
# a harmless: `configure: WARNING: unrecognized options: --with-bugurl...`
|
|
# If it's set, use it, if is a recognized option.
|
|
if [ ! "${CT_TOOLCHAIN_PKGVERSION}" = "" ]; then
|
|
extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
|
|
fi
|
|
if [ ! "${CT_TOOLCHAIN_BUGURL}" = "" ]; then
|
|
[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
|
|
fi
|
|
|
|
CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
|
|
|
|
glibc_cflags="-O2 -fno-stack-protector"
|
|
case "${CT_LIBC_ENABLE_FORTIFIED_BUILD}" in
|
|
y) ;;
|
|
*) glibc_cflags+=" -U_FORTIFY_SOURCE";;
|
|
esac
|
|
|
|
# ./configure is misled 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
|
|
# - ${BASH} is only used to set the shebang
|
|
# in two scripts to run on the target
|
|
# So we can safely bypass bash detection at compile time.
|
|
# Should this change in a future glibc release, we'd better
|
|
# directly mangle the generated scripts _after_ they get built,
|
|
# or even after they get installed...
|
|
echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
|
|
|
|
# Configure with --prefix the way we want it on the target...
|
|
|
|
CT_DoExecLog CFG \
|
|
CFLAGS="${glibc_cflags}" \
|
|
${CONFIG_SHELL} \
|
|
"${src_dir}/configure" \
|
|
--prefix=/usr \
|
|
--cache-file="$(pwd)/config.cache" \
|
|
--without-cvs \
|
|
--disable-profile \
|
|
--without-gd \
|
|
--disable-debug \
|
|
--disable-sanity-checks \
|
|
"${extra_config[@]}"
|
|
|
|
CT_DoLog EXTRA "Building C library localedef"
|
|
CT_DoExecLog ALL make ${JOBSFLAGS}
|
|
|
|
# The target's endianness and uint32_t alignment should be passed as options
|
|
# to localedef, but glibc's localedef does not support these options, which
|
|
# means that the locale files generated here will be suitable for the target
|
|
# only if it has the same endianness and uint32_t alignment as the host's.
|
|
|
|
CT_DoLog EXTRA "Installing C library locales"
|
|
CT_DoExecLog ALL make ${JOBSFLAGS} \
|
|
install_root="${CT_SYSROOT_DIR}" \
|
|
localedata/install-locales
|
|
}
|
|
|