yann@850: # This file adds functions to build glibc
yann@850: # Copyright 2007 Yann E. MORIN
yann@850: # Licensed under the GPL v2. See COPYING in the root of this package
yann@850: 
yann@2272: # Add the definitions common to glibc and eglibc
yann@2272: #   do_libc_headers
yann@2272: #   do_libc_start_files
yann@2272: . "${CT_LIB_DIR}/scripts/build/libc/glibc-eglibc.sh-common"
yann@2272: 
yann@850: # Download glibc
yann@850: do_libc_get() {
yann@1260:     local date
yann@1260:     local version
yann@1482:     local -a addons_list
yann@1482: 
yann@1482:     addons_list=($(do_libc_add_ons_list " "))
yann@1114: 
yann@1759:     # Main source
yann@1759:     CT_GetFile "glibc-${CT_LIBC_VERSION}"               \
yann@1759:                {ftp,http}://ftp.gnu.org/gnu/glibc       \
yann@1759:                ftp://gcc.gnu.org/pub/glibc/releases     \
yann@1759:                ftp://gcc.gnu.org/pub/glibc/snapshots
yann@1759: 
yann@1759:     # C library addons
yann@1759:     for addon in "${addons_list[@]}"; do
yann@1759:         # NPTL addon is not to be downloaded, in any case
yann@1759:         [ "${addon}" = "nptl" ] && continue || true
yann@1759:         CT_GetFile "glibc-${addon}-${CT_LIBC_VERSION}"      \
yann@850:                    {ftp,http}://ftp.gnu.org/gnu/glibc       \
yann@850:                    ftp://gcc.gnu.org/pub/glibc/releases     \
yann@850:                    ftp://gcc.gnu.org/pub/glibc/snapshots
yann@1759:     done
yann@850: 
yann@850:     return 0
yann@850: }
yann@850: 
yann@850: # Extract glibc
yann@850: do_libc_extract() {
yann@1482:     local -a addons_list
yann@1482: 
yann@1482:     addons_list=($(do_libc_add_ons_list " "))
yann@1260: 
yann@1759:     CT_Extract "glibc-${CT_LIBC_VERSION}"
yann@1260: 
yann@1759:     CT_Pushd "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}"
yann@1901:     CT_Patch nochdir "glibc" "${CT_LIBC_VERSION}"
yann@850: 
yann@850:     # C library addons
yann@1482:     for addon in "${addons_list[@]}"; do
yann@850:         # NPTL addon is not to be extracted, in any case
yann@850:         [ "${addon}" = "nptl" ] && continue || true
yann@1761:         CT_Extract nochdir "glibc-${addon}-${CT_LIBC_VERSION}"
yann@1260: 
yann@1126:         # Some addons have the 'long' name, while others have the
yann@1126:         # 'short' name, but patches are non-uniformly built with
yann@1126:         # either the 'long' or 'short' name, whatever the addons name
yann@1126:         # so we have to make symlinks from the existing to the missing
yann@1126:         # Fortunately for us, [ -d foo ], when foo is a symlink to a
yann@1126:         # directory, returns true!
yann@1759:         [ -d "${addon}" ] || CT_DoExecLog ALL ln -s "glibc-${addon}-${CT_LIBC_VERSION}" "${addon}"
yann@1759:         [ -d "glibc-${addon}-${CT_LIBC_VERSION}" ] || CT_DoExecLog ALL ln -s "${addon}" "glibc-${addon}-${CT_LIBC_VERSION}"
yann@1901:         CT_Patch nochdir "glibc" "${addon}-${CT_LIBC_VERSION}"
yann@850:     done
yann@850: 
yann@884:     # The configure files may be older than the configure.in files
yann@884:     # if using a snapshot (or even some tarballs). Fake them being
yann@884:     # up to date.
yann@1482:     sleep 2
yann@1260:     find . -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
yann@1260: 
yann@1260:     CT_Popd
yann@884: 
yann@850:     return 0
yann@850: }
yann@850: 
yann@850: # There is nothing to do for glibc check config
yann@850: do_libc_check_config() {
yann@850:     :
yann@850: }
yann@850: 
yann@850: # This function builds and install the full glibc
yann@850: do_libc() {
yann@1482:     local -a extra_config
yann@1260: 
yann@850:     CT_DoStep INFO "Installing C library"
yann@850: 
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-libc"
yann@850:     cd "${CT_BUILD_DIR}/build-libc"
yann@850: 
yann@850:     CT_DoLog EXTRA "Configuring C library"
yann@850: 
yann@850:     # Add some default glibc config options if not given by user.
yann@850:     # We don't need to be conditional on wether the user did set different
yann@850:     # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
yann@850: 
yann@850:     case "${CT_THREADS}" in
yann@1482:         nptl)           extra_config+=("--with-__thread" "--with-tls");;
yann@1482:         linuxthreads)   extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;
yann@1482:         none)           extra_config+=("--without-__thread" "--without-nptl")
yann@850:                         case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
yann@850:                             *-tls*) ;;
yann@1482:                             *) extra_config+=("--without-tls");;
yann@850:                         esac
yann@850:                         ;;
yann@850:     esac
yann@850: 
yann@850:     case "${CT_SHARED_LIBS}" in
yann@1482:         y) extra_config+=("--enable-shared");;
yann@1482:         *) extra_config+=("--disable-shared");;
yann@850:     esac
yann@850: 
yann@850:     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
jimfriel@1486:         y,) extra_config+=("--with-fp");;
jimfriel@1486:         ,y) extra_config+=("--without-fp");;
yann@850:     esac
yann@850: 
bryanhundven@2180:     if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then
bryanhundven@2180:         extra_config+=("--disable-versioning")
bryanhundven@2180:     fi
bryanhundven@2180: 
bryanhundven@2181:     if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then
bryanhundven@2181:         extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")
bryanhundven@2181:     fi
bryanhundven@2181: 
yann@850:     case "$(do_libc_add_ons_list ,)" in
yann@850:         "") ;;
yann@1482:         *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
yann@850:     esac
yann@850: 
yann@1482:     extra_config+=("$(do_libc_min_kernel_config)")
yann@950: 
yann@850:     # Add some default CC args
yann@1764:     glibc_version="$( grep -E '\<VERSION\>' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/version.h"  \
yann@1764:                       |cut -d '"' -f 2
yann@1764:                     )"
yann@1764:     glibc_version_major=$(echo ${glibc_version} |sed -r -e 's/^([[:digit:]]+).*/\1/')
yann@1764:     glibc_version_minor=$(echo ${glibc_version} |sed -r -e 's/^[[:digit:]]+[\.-_]([[:digit:]]+).*/\1/')
yann@850:     if [    ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6    \
yann@850:          -o ${glibc_version_major} -gt 2                                    ]; then
yann@850:         # Don't use -pipe: configure chokes on it for glibc >= 2.6.
yann@850:         CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
yann@850:         extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
yann@850:     else
yann@850:         extra_cc_args="${CT_CFLAGS_FOR_HOST}"
yann@850:     fi
yann@850:     extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
yann@850: 
yann@850:     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
yann@850:     CT_DoLog DEBUG "Using gcc for target    : '${cross_cc}'"
yann@850:     CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
yann@850:     CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
yann@850:     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
yann@850: 
yann@1232:     # Pre-seed the configparms file with values from the config option
yann@1627:     printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms
yann@850: 
yann@850:     # For glibc 2.3.4 and later we need to set some autoconf cache
yann@850:     # variables, because nptl/sysdeps/pthread/configure.in does not
yann@850:     # work when cross-compiling.
yann@850:     if [ "${CT_THREADS}" = "nptl" ]; then
yann@850:         echo libc_cv_forced_unwind=yes
yann@850:         echo libc_cv_c_cleanup=yes
yann@850:     fi >config.cache
yann@850: 
yann@2002:     # ./configure is mislead by our tools override wrapper for bash
yann@2002:     # so just tell it where the real bash is _on_the_target_!
yann@2002:     # Notes:
yann@2002:     # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL
yann@2002:     # - ${BASH_SHELL}            is only used to set BASH
yann@2002:     # - ${BASH}                  is only used to set the shebang
yann@2002:     #                            in two scripts to run on the target
yann@2002:     # So we can safely bypass bash detection at compile time.
yann@2002:     # Should this change in a future glibc release, we'd better
yann@2002:     # directly mangle the generated scripts _after_ they get built,
yann@2002:     # or even after they get installed... glibc is such a sucker...
yann@2002:     echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
yann@2002: 
yann@850:     # Configure with --prefix the way we want it on the target...
yann@850:     # There are a whole lot of settings here.  You'll probably want
yann@850:     # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
yann@850:     # Compare these options with the ones used when installing the glibc headers above - they're different.
yann@850:     # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" 
yann@850:     # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. 
yann@850:     # Set BUILD_CC, or you won't be able to build datafiles
yann@850:     # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
yann@850: 
yann@850:     # OK. I'm fed up with those folks telling me what I should do.
yann@850:     # I don't configure nptl? Well, maybe that's purposedly because
yann@850:     # I don't want nptl! --disable-sanity-checks will shut up those
yann@850:     # silly messages. GNU folks again, he?
yann@850: 
yann@1041:     BUILD_CC="${CT_BUILD}-gcc"                                      \
yann@1551:     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O2"  \
yann@850:     CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
yann@850:     AR=${CT_TARGET}-ar                                              \
yann@850:     RANLIB=${CT_TARGET}-ranlib                                      \
anthony@2154:     CT_DoExecLog CFG                                                \
yann@1759:     "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure"              \
yann@850:         --prefix=/usr                                               \
yann@1041:         --build=${CT_BUILD}                                         \
yann@850:         --host=${CT_TARGET}                                         \
yann@850:         --without-cvs                                               \
yann@850:         --disable-profile                                           \
yann@850:         --disable-debug                                             \
yann@850:         --without-gd                                                \
yann@850:         --disable-sanity-checks                                     \
yann@850:         --cache-file=config.cache                                   \
yann@850:         --with-headers="${CT_HEADERS_DIR}"                          \
yann@1482:         "${extra_config[@]}"                                        \
yann@850:         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
yann@850: 
yann@1016:     # glibc initial build hacks
yann@1016:     # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
yann@1016:     case "${CT_ARCH},${CT_ARCH_CPU}" in
yann@1016: 	powerpc,8??)
yann@1016: 	    CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
yann@1016: 	    GLIBC_INITIAL_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";;
yann@1016:     esac
yann@1016: 
yann@850:     # If this fails with an error like this:
yann@850:     # ...  linux/autoconf.h: No such file or directory 
yann@850:     # then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
yann@850:     # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
yann@850:     # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
yann@850:     CT_DoLog EXTRA "Building C library"
yann@850:     CT_DoExecLog ALL make LD=${CT_TARGET}-ld                        \
yann@1395:                           RANLIB=${CT_TARGET}-ranlib                \
yann@1395:                           OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
yann@1395:                           ASFLAGS="${GLIBC_INITIAL_BUILD_ASFLAGS}"  \
yann@2267:                           all
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library"
yann@850:     CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}"          \
yann@850:                           ${LIBC_SYSROOT_ARG}                       \
yann@850:                           OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
yann@2267:                           install
yann@850: 
yann@850:     # This doesn't seem to work when building a crosscompiler,
yann@850:     # as it tries to execute localedef using the just-built ld.so!?
yann@850:     #CT_DoLog EXTRA "Installing locales"
yann@850:     #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL
yann@850: 
yann@850:     # Fix problems in linker scripts.
yann@850:     #
yann@872:     # Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
yann@850:     # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
yann@1037:     # No need to look into the lib64/ dirs here and there, they point to the
yann@1037:     # corresponding lib/ directories.
yann@850:     #
yann@850:     # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
yann@850:     CT_DoLog EXTRA "Fixing C library linker scripts"
yann@850:     for file in libc.so libpthread.so libgcc_s.so; do
yann@1037:         for dir in lib usr/lib; do
yann@850:             if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
yann@850:                 CT_DoExecLog ALL cp -v "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
yann@850:                 CT_DoLog DEBUG "Fixing '${CT_SYS_ROOT_DIR}/${dir}/${file}'"
yann@872:                 CT_DoExecLog ALL sed -i -r -e '/BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}"
yann@850:             fi
yann@850:         done
yann@850:     done
yann@850: 
yann@850:     CT_EndStep
yann@850: }