mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 21:07:54 +00:00
523 lines
22 KiB
Plaintext
523 lines
22 KiB
Plaintext
# This file contains the functions common to glibc and eglibc
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# Extract the C library tarball(s)
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do_libc_extract() {
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local addon
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# Extract the main tarball
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CT_Extract "${CT_LIBC}-${CT_LIBC_VERSION}"
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CT_Pushd "${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
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CT_Patch nochdir "${CT_LIBC}" "${CT_LIBC_VERSION}"
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# Extract the add-opns
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for addon in $(do_libc_add_ons_list " "); do
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# If the addon was bundled with the main archive, we do not
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# need to extract it. Worse, if we were to try to extract
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# it, we'd get an error.
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if [ -d "${addon}" ]; then
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CT_DoLog DEBUG "Add-on already present, spkipping extraction"
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continue
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fi
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CT_Extract nochdir "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
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CT_TestAndAbort "Error in add-on '${addon}': both short and long names in tarball" \
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-d "${addon}" -a -d "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
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# Some addons have the 'long' name, while others have the
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# 'short' name, but patches are non-uniformly built with
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# either the 'long' or 'short' name, whatever the addons name
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# but we prefer the 'short' name and avoid duplicates.
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if [ -d "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" ]; then
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CT_DoExecLog FILE mv "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" "${addon}"
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fi
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CT_DoExecLog FILE ln -s "${addon}" "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
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CT_Patch nochdir "${CT_LIBC}" "${addon}-${CT_LIBC_VERSION}"
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# Remove the long name since it can confuse configure scripts to run
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# the same source twice.
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rm "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
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done
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# The configure files may be older than the configure.in files
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# if using a snapshot (or even some tarballs). Fake them being
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# up to date.
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find . -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
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CT_Popd
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if [ "${CT_LIBC_LOCALES}" = "y" ]; then
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do_libc_locales_extract
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fi
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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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# 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 -a multilibs
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local multilib
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local multi_dir
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local multi_flags
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local extra_dir
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local libc_headers libc_startfiles libc_full
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local hdr
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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 "${libc_mode}" in
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startfiles)
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CT_DoStep INFO "Installing C library headers & start files"
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hdr=y
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libc_startfiles=y
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libc_full=
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;;
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final)
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CT_DoStep INFO "Installing C library"
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hdr=
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libc_startfiles=
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libc_full=y
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;;
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*) CT_Abort "Unsupported (or unset) libc_mode='${libc_mode}'";;
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esac
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# If gcc is not configured for multilib, it still prints
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# a single line for the default settings
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multilibs=( $("${CT_TARGET}-gcc" -print-multi-lib 2>/dev/null) )
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for multilib in "${multilibs[@]}"; do
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multi_dir="${multilib%%;*}"
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if [ "${multi_dir}" != "." ]; then
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CT_DoStep INFO "Building for multilib subdir='${multi_dir}'"
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extra_flags="$( echo "${multilib#*;}" \
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|${sed} -r -e 's/@/ -/g;' \
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)"
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extra_dir="/${multi_dir}"
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# glibc install its files in ${extra_dir}/{usr/,}lib
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# while gcc expects them in {,usr/}lib/${extra_dir}.
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# Prepare some symlinks so glibc installs in fact in
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# the proper place
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# We do it in the start-files step, so it is not needed
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# to do it in the final step, as the symlinks will
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# already exist
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if [ "${libc_mode}" = "startfiles" ]; then
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CT_Pushd "${CT_SYSROOT_DIR}"
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CT_DoExecLog ALL mkdir -p "lib/${multi_dir}" \
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"usr/lib/${multi_dir}" \
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"${multi_dir}" \
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"${multi_dir}/usr"
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CT_DoExecLog ALL ln -sf "../lib/${multi_dir}" "${multi_dir}/lib"
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CT_DoExecLog ALL ln -sf "../../usr/lib/${multi_dir}" "${multi_dir}/usr/lib"
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CT_Popd
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fi
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libc_headers=
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else
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extra_dir=
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extra_flags=
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libc_headers="${hdr}"
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fi
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc-${libc_mode}${extra_dir//\//_}"
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do_libc_backend_once extra_dir="${extra_dir}" \
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extra_flags="${extra_flags}" \
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libc_headers="${libc_headers}" \
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libc_startfiles="${libc_startfiles}" \
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libc_full="${libc_full}"
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CT_Popd
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if [ "${multi_dir}" != "." ]; then
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if [ "${libc_mode}" = "final" ]; then
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CT_DoLog EXTRA "Fixing up multilib location"
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# rewrite the library multiplexers
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for d in "lib/${multi_dir}" "usr/lib/${multi_dir}"; do
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for l in libc libpthread libgcc_s; do
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if [ -f "${CT_SYSROOT_DIR}/${d}/${l}.so" \
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-a ! -L ${CT_SYSROOT_DIR}/${d}/${l}.so ]
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then
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CT_DoExecLog DEBUG ${sed} -r -i \
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-e "s:/lib/:/lib/${multi_dir}/:g;" \
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"${CT_SYSROOT_DIR}/${d}/${l}.so"
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fi
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done
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done
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# Remove the multi_dir now it is no longer useful
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CT_DoExecLog DEBUG rm -rf "${CT_SYSROOT_DIR}/${multi_dir}"
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fi # libc_mode == final
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CT_EndStep
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fi
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done
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CT_EndStep
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}
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# This backend builds the C library once
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# Usage: do_libc_backend_once param=value [...]
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# Parameter : Definition : Type : Default
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# libc_headers : Build libc headers : bool : n
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# libc_startfiles : Build libc start-files : bool : n
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# libc_full : Build full libc : bool : n
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# extra_flags : Extra CFLAGS to use (for multilib) : string : (empty)
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# extra_dir : Extra subdir for multilib : string : (empty)
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do_libc_backend_once() {
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local libc_headers
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local libc_startfiles
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local libc_full
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local extra_flags
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local extra_dir
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local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
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local extra_cc_args
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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 float_extra
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local endian_extra
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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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CT_DoLog EXTRA "Configuring C library"
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case "${CT_LIBC}" in
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eglibc)
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if [ "${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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;;
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glibc)
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# glibc can't be built without -O2 (reference needed!)
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OPTIMIZE=-O2
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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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;;
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esac
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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_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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float_extra="$( echo "${extra_flags}" \
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|${sed} -r -e '/^(.*[[:space:]])?-m(hard|soft)-float([[:space:]].*)?$/!d;' \
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-e 's//\2/;' \
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)"
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case "${float_extra}" in
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hard) extra_config+=("--with-fp");;
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soft) extra_config+=("--without-fp");;
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"")
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case "${CT_ARCH_FLOAT}" in
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hard|softfp) extra_config+=("--with-fp");;
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soft) extra_config+=("--without-fp");;
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esac
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;;
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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=$(do_libc_add_ons_list ,)");;
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esac
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if [ "${CT_LIBC_EGLIBC_HAS_PKGVERSION_BUGURL}" = "y" ]; then
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extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
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[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
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fi
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# Extract the endianness options if any
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# This should cover all possible endianness options
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# in gcc, but it is prone to bit-rot... :-(
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endian_extra="$( echo "${extra_flags}" \
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|${sed} -r -e '/^(.*[[:space:]])?-(E[BL]|m((big|little)(-endian)?|e?[bl]))([[:space:]].*)?$/!d;' \
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-e 's//\2/;' \
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)"
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case "${endian_extra}" in
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EB|mbig-endian|mbig|meb|mb)
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extra_cc_args="${extra_cc_args} ${endian_extra}"
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;;
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EL|mlittle-endian|mlittle|mel|ml)
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extra_cc_args="${extra_cc_args} ${endian_extra}"
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;;
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"") extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
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;;
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esac
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touch config.cache
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if [ "${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 "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms
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cross_cc=$(CT_Which "${CT_TARGET}-gcc")
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extra_cc_args+=" ${extra_flags}"
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case "${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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glibc_cflags+=" ${CT_TARGET_CFLAGS} ${OPTIMIZE} ${CT_LIBC_GLIBC_EXTRA_CFLAGS}"
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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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# - ${BASH} is only used to set the shebang
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# in two scripts to run on the target
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# So we can safely bypass bash detection at compile time.
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# Should this change in a future eglibc release, we'd better
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# directly mangle the generated scripts _after_ they get built,
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# or even after they get installed... eglibc is such a sucker...
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echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
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# Configure with --prefix the way we want it on the target...
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# There are a whole lot of settings here. You'll probably want
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# to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG_ARRAY
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# Compare these options with the ones used when installing the glibc headers above - they're different.
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# Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
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# See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
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# Set BUILD_CC, or we won't be able to build datafiles
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# Run explicitly through CONFIG_SHELL, or the build breaks badly (loop-of-death)
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# when the shell is not bash... Sigh... :-(
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CT_DoLog DEBUG "Using gcc for target : '${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 : '${glibc_cflags}'"
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CT_DoLog DEBUG "Extra flags (multilib) : '${extra_flags}'"
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CT_DoExecLog CFG \
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BUILD_CC="${CT_BUILD}-gcc" \
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CFLAGS="${glibc_cflags}" \
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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=${CT_TARGET}-ranlib \
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"${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=${CT_TARGET} \
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--cache-file="$(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},${CT_ARCH_CPU}" in
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powerpc,8??)
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# http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
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CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
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extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" )
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;;
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esac
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if [ "${libc_headers}" = "y" ]; then
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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 make ${JOBSFLAGS} \
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install_root=${CT_SYSROOT_DIR}${extra_dir} \
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install-bootstrap-headers=yes \
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"${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 "${CT_HEADERS_DIR}/bits/stdio_lim.h"
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# Following error building gcc-4.0.0's gcj:
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# error: bits/syscall.h: No such file or directory
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# solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
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# but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
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case "${CT_ARCH}" in
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arm) ;;
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*) CT_DoExecLog ALL cp -v "misc/syscall-list.h" \
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"${CT_HEADERS_DIR}/bits/syscall.h"
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;;
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esac
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fi
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fi # libc_headers == y
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if [ "${libc_startfiles}" = "y" ]; then
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if [ "${CT_THREADS}" = "nptl" ]; then
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CT_DoLog EXTRA "Installing C library start files"
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# there are a few object files needed to link shared libraries,
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# which we build and install by hand
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CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}${extra_dir}/usr/lib"
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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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"${CT_SYSROOT_DIR}${extra_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 "${cross_cc}" -nostdlib \
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-nostartfiles \
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-shared \
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-x c /dev/null \
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-o "${CT_SYSROOT_DIR}${extra_dir}/usr/lib/libc.so"
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fi # threads == nptl
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fi # libc_headers == y
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if [ "${libc_full}" = "y" ]; 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="${CT_SYSROOT_DIR}${extra_dir}" \
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install
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|
if [ "${CT_BUILD_MANUALS}" = "y" ]; then
|
|
CT_DoLog EXTRA "Building and installing the C library manual"
|
|
# Omit JOBSFLAGS as GLIBC has problems building the
|
|
# manuals in parallel
|
|
CT_DoExecLog ALL make pdf html
|
|
# EGLIBC doesn't have a install-{pdf.html} and leaves the manuals
|
|
# in the source directory
|
|
CT_DoExecLog ALL mkdir -p ${CT_PREFIX_DIR}/share/doc
|
|
CT_DoExecLog ALL cp -av ${src_dir}/manual/*.pdf ${src_dir}/manual/libc \
|
|
${CT_PREFIX_DIR}/share/doc
|
|
fi
|
|
|
|
if [ "${CT_LIBC_LOCALES}" = "y" ]; then
|
|
do_libc_locales
|
|
fi
|
|
fi # libc_full == y
|
|
}
|
|
|
|
# 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 "${CT_LIBC_ADDONS_LIST}" \
|
|
|sed -r -e "s/[[:space:],]/${sep}/g;" \
|
|
)"
|
|
case "${CT_THREADS}" in
|
|
none) ;;
|
|
*) addons_list="${addons_list}${sep}${CT_THREADS}";;
|
|
esac
|
|
[ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
|
|
# Remove duplicate, leading and trailing separators
|
|
echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"
|
|
}
|
|
|
|
# Compute up the minimum supported Linux kernel version
|
|
do_libc_min_kernel_config() {
|
|
local min_kernel_config
|
|
|
|
case "${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[*]}" in
|
|
*--enable-kernel*) ;;
|
|
*) if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
|
|
# We can't rely on the kernel version from the configuration,
|
|
# because it might not be available if the user uses pre-installed
|
|
# headers. On the other hand, both method will have the kernel
|
|
# version installed in "usr/include/linux/version.h" in the sysroot.
|
|
# Parse that instead of having two code-paths.
|
|
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
|
|
}
|