mirror of
https://github.com/crosstool-ng/crosstool-ng.git
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6d5227b63b
glibc 2.12.1 was marked as obsolete. Now that the 1.25.0 release is out this version can be removed completely. As glibc 2.12.1 was the last remaining version supported by glibc-ports support for glibc-ports is also removed. Signed-off-by: Chris Packham <judge.packham@gmail.com>
423 lines
17 KiB
Bash
423 lines
17 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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glibc_get()
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{
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local date
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local version
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CT_Fetch GLIBC
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return 0
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}
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glibc_extract()
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{
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CT_ExtractPatch GLIBC
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}
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# This function builds and install the full C library
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glibc_main()
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{
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local arg
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CT_DoStep INFO "Installing C library"
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc"
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CT_IterateMultilibs glibc_backend_once multilib
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CT_Popd
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CT_EndStep
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}
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# This backend builds the C library once
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# Usage: glibc_backend_once param=value [...]
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# Parameter : Definition : Type
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# multi_* : as defined in CT_IterateMultilibs : (varies) :
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glibc_backend_once()
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{
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# Glibc seems to be smart enough to know about the cases that can coexist
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# in the same root and installs them into proper multilib-os directory; all
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# we need is to point to the right root.
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local multi_flags multi_dir multi_os_dir multi_root multi_index multi_count multi_target
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local build_cflags build_cppflags build_ldflags
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local src_dir="${CT_SRC_DIR}/glibc"
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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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CT_DoLog EXTRA "Configuring C library"
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# If those two are missing, iconv build breaks
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extra_config+=( --disable-debug --disable-sanity-checks )
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if [ "${CT_GLIBC_ENABLE_OBSOLETE_RPC}" = "y" ]; then
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extra_config+=( --enable-obsolete-rpc )
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fi
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# Add some default glibc config options if not given by user.
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# We don't need to be conditional on whether the user did set different
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# values, as they CT_GLIBC_EXTRA_CONFIG_ARRAY is passed after
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# extra_config
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extra_config+=("$(glibc_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_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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# FIXME static version of glibc seems to be broken:
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# build tries to use libc-modules.h which is generated from
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# soversions.i, which is only created for builds with shared libs.
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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_GLIBC_DISABLE_VERSIONING}" = "y" ]; then
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extra_config+=("--disable-versioning")
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fi
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if [ "${CT_GLIBC_OLDEST_ABI}" != "" ]; then
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extra_config+=("--enable-oldest-abi=${CT_GLIBC_OLDEST_ABI}")
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fi
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case "$(glibc_add_ons_list ,)" in
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"") extra_config+=("--enable-add-ons=no");;
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*) extra_config+=("--enable-add-ons=$(glibc_add_ons_list ,)");;
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esac
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[ "${CT_GLIBC_ENABLE_WERROR}" != "y" ] && extra_config+=("--disable-werror")
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[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
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[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
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if [ -n "${CT_GLIBC_SSP}" ]; then
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extra_config+=("--enable-stack-protector=${CT_GLIBC_SSP}")
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fi
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touch config.cache
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# Until it became explicitly controllable with --enable-stack-protector=...,
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# configure detected GCC support for -fstack-protector{,-strong} and
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# tried to enable it in some parts of glibc - which then failed to build.
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if [ -z "${CT_GLIBC_BUILD_SSP}" ]; then
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echo "libc_cv_ssp=no" >>config.cache
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echo "libc_cv_ssp_strong=no" >>config.cache
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fi
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if [ "${CT_GLIBC_FORCE_UNWIND}" = "y" ]; then
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echo "libc_cv_forced_unwind=yes" >>config.cache
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echo "libc_cv_c_cleanup=yes" >>config.cache
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fi
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# Pre-seed the configparms file with values from the config option
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printf "%s\n" "${CT_GLIBC_CONFIGPARMS}" > configparms
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# glibc can't be built without -O2 (reference needed!)
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glibc_cflags+=" -g -O2"
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if [ "${CT_GLIBC_ENABLE_COMMON_FLAG}" = "y" ]; then
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glibc_cflags+=" -fcommon"
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fi
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case "${CT_GLIBC_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_ALL_TARGET_CFLAGS}"
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glibc_cflags+=" ${CT_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 ${opt} in
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-mhard-float|-mfloat-abi=hard|-mfloat-abi=softfp|-mno-soft-float|-mfpu)
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extra_config+=("--with-fp")
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;;
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-msoft-float|-mfloat-abi=soft|-mno-float|-mno-fpu)
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extra_config+=("--without-fp")
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;;
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esac
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done
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CT_DoArchGlibcAdjustConfigure extra_config "${glibc_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 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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CT_SymlinkToolsMultilib
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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 : '$(glibc_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 "Configuring with --host : '${multi_target}'"
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# CFLAGS are only applied when compiling .c files. .S files are compiled with ASFLAGS,
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# but they are not passed by configure. Thus, pass everything in CC instead.
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# The CFLAGS variable needs to be cleared, else the default "-g -O2"
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# would override previous flags.
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CT_DoExecLog CFG \
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BUILD_CC=${CT_BUILD}-gcc \
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CC="${CT_TARGET}-${CT_CC} ${glibc_cflags}" \
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CFLAGS="" \
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AR=${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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"${CT_GLIBC_EXTRA_CONFIG_ARRAY[@]}"
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# build hacks
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# Mask C++ compiler. Glibc 2.29+ attempts to build some tests using gcc++, but
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# we haven't built libstdc++ yet. Should really implement #808 after 1.24.0...
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extra_make_args+=( CXX= )
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case "${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*|*freebsd*)
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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="${build_ldflags} -lintl -liconv"
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case "$CT_BUILD" in
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*cygwin*|*freebsd*)
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# Additionally, stat in FreeBSD, Cygwin, and possibly others
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# is always 64bit, so replace struct stat64 with stat.
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build_cppflags="${build_cppflags} -Dstat64=stat"
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;;
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esac
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;;
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esac
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# Make sure glibc build system respects our provided CFLAGS.
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extra_make_args+=( default_cflags= )
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extra_make_args+=( "BUILD_CFLAGS=${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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CT_DoLog EXTRA "Building C library"
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CT_DoExecLog ALL make ${CT_JOBSFLAGS} \
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"${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 ${CT_JOBSFLAGS} \
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"${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 CT_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 ${CT_PREFIX_DIR}/share/doc
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CT_DoExecLog ALL cp -av manual/*.pdf \
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manual/libc \
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${CT_PREFIX_DIR}/share/doc
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fi
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if [ "${CT_GLIBC_LOCALES}" = "y" -a "${multi_index}" = "${multi_count}" ]; then
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glibc_locales
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fi
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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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glibc_add_ons_list()
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{
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local sep="$1"
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local addons_list
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if [ "${CT_GLIBC_USE_NPTL_ADDON}" = "y" ]; then
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addons_list="${addons_list}${sep}nptl"
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fi
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if [ "${CT_GLIBC_USE_LIBIDN_ADDON}" = "y" ]; then
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addons_list="${addons_list}${sep}libidn"
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fi
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echo "${addons_list#${sep}}" # Remove leading separator if any
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}
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# Compute up the minimum supported Linux kernel version
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glibc_min_kernel_config()
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{
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local min_kernel_config
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case "${CT_GLIBC_EXTRA_CONFIG_ARRAY[*]}" in
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*--enable-kernel*) ;;
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*) if [ "${CT_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
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# TBD do we support that currently? We always seem to install kernel headers
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# We can't rely on the kernel version from the configuration,
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# because it might not be available if the user uses pre-installed
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# headers. On the other hand, both method will have the kernel
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# version installed in "usr/include/linux/version.h" in the sysroot.
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# Parse that instead of having two code-paths.
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version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"
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if [ ! -f "${version_code_file}" -o ! -r "${version_code_file}" ]; then
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CT_Abort "Linux version is unavailable in installed headers files"
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fi
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version_code="$(grep -E LINUX_VERSION_CODE "${version_code_file}" \
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|cut -d' ' -f 3 \
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)"
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version=$(((version_code>>16)&0xFF))
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patchlevel=$(((version_code>>8)&0xFF))
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sublevel=$((version_code&0xFF))
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min_kernel_config="${version}.${patchlevel}.${sublevel}"
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elif [ "${CT_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then
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# Trim the fourth part of the linux version, keeping only the first three numbers
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min_kernel_config="$( echo "${CT_GLIBC_MIN_KERNEL_VERSION}" \
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|sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;' \
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)"
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fi
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echo "--enable-kernel=${min_kernel_config}"
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;;
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esac
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}
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# Build and install the libc locales
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glibc_locales()
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{
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local src_dir="${CT_SRC_DIR}/glibc"
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local -a extra_config
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local glibc_cflags
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# To build locales, we'd need to build glibc for the build machine.
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# Bail out if the host is not supported.
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case "${CT_BUILD}" in
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*-cygwin|*-darwin*)
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CT_DoLog EXTRA "Skipping GNU libc locales: incompatible build machine"
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return
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;;
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esac
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mkdir -p "${CT_BUILD_DIR}/build-localedef"
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cd "${CT_BUILD_DIR}/build-localedef"
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CT_DoLog EXTRA "Configuring C library localedef"
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# Versions that don't support --with-pkgversion or --with-bugurl will cause
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# a harmless: `configure: WARNING: unrecognized options: --with-bugurl...`
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# If it's set, use it, if is a recognized option.
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if [ ! "${CT_TOOLCHAIN_PKGVERSION}" = "" ]; then
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[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
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fi
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if [ ! "${CT_TOOLCHAIN_BUGURL}" = "" ]; then
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[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
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fi
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CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
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glibc_cflags="-O2 -fno-stack-protector"
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case "${CT_GLIBC_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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# ./configure is misled 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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# - ${BASH} is only used to set the shebang
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# in two scripts to run on the target
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# So we can safely bypass bash detection at compile time.
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# Should this change in a future glibc release, we'd better
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# directly mangle the generated scripts _after_ they get built,
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# or even after they get installed...
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echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
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# Configure with --prefix the way we want it on the target...
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CT_DoExecLog CFG \
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CFLAGS="${glibc_cflags}" \
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${CONFIG_SHELL} \
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"${src_dir}/configure" \
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--prefix=/usr \
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--cache-file="$(pwd)/config.cache" \
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--without-cvs \
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--disable-profile \
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--without-gd \
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--disable-debug \
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--disable-sanity-checks \
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"${extra_config[@]}"
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CT_DoLog EXTRA "Building C library localedef"
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CT_DoExecLog ALL make ${CT_JOBSFLAGS}
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# The target's endianness and uint32_t alignment should be passed as options
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# to localedef, but glibc's localedef does not support these options, which
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# means that the locale files generated here will be suitable for the target
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# only if it has the same endianness and uint32_t alignment as the host's.
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CT_DoLog EXTRA "Installing C library locales"
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CT_DoExecLog ALL make ${CT_JOBSFLAGS} \
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install_root="${CT_SYSROOT_DIR}" \
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localedata/install-locales
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}
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