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@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@1761:     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@1761:         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 installs the glibc headers needed to build the core compiler
yann@850: do_libc_headers() {
yann@1482:     local -a extra_config
yann@1719:     local arch4hdrs
yann@1260: 
yann@850:     CT_DoStep INFO "Installing C library headers"
yann@850: 
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
yann@850:     cd "${CT_BUILD_DIR}/build-libc-headers"
yann@850: 
yann@850:     CT_DoLog EXTRA "Configuring C library"
yann@850: 
yann@1719:     # The x86 arch needs special care... Bizarelly enough... :-(
yann@1747:     case "${CT_ARCH}:${CT_ARCH_BITNESS}" in
yann@1719:         x86:32) arch4hdrs="i386";;
yann@1719:         x86:64) arch4hdrs="x86_64";;
yann@1747:         *)      arch4hdrs="${CT_ARCH}";;
yann@1719:     esac
yann@1719: 
yann@850:     # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
yann@850:     # 1. override CC to keep glibc's configure from using $TARGET-gcc. 
yann@850:     # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
yann@850:     # 3. build with gcc 3.2 or later
yann@850:     # Compare these options with the ones used when building glibc for real below - they're different.
yann@850:     # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
yann@850:     # so when configure checks to make sure gcc has access to the assembler you just built...
yann@850:     # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
yann@850:     # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
yann@850:     # Note: the warning
yann@850:     # "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
yann@850:     # *** add-on?"
yann@850:     # is ok here, since all we want are the basic headers at this point.
yann@850:     # Override libc_cv_ppc_machine so glibc-cvs doesn't complain
yann@850:     # 'a version of binutils that supports .machine "altivec" is needed'.
yann@850: 
yann@850:     # We need to remove any threading addon when installing headers
yann@1482:     addons_list="$(do_libc_add_ons_list " "                     \
yann@1482:                    |sed -r -e 's/\<(nptl|linuxthreads)\>/ /g;'  \
yann@1482:                            -e 's/ +/,/g; s/^,+//; s/,+$//;'     \
yann@1482:                   )"
yann@850: 
yann@1482:     extra_config+=("--enable-add-ons=${addons_list}")
yann@1482: 
yann@1482:     extra_config+=("${addons_config}")
yann@1482:     extra_config+=("$(do_libc_min_kernel_config)")
yann@852: 
yann@1232:     # Pre-seed the configparms file with values from the config option
yann@1627:     printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms
yann@1232: 
yann@850:     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
yann@850:     CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
yann@1482:     CT_DoLog DEBUG "Extra config passed : '${extra_config[*]}'"
yann@850: 
yann@1260:     libc_cv_ppc_machine=yes                                     \
yann@1641:     libc_cv_mlong_double_128=yes                                \
yann@1641:     libc_cv_mlong_double_128ibm=yes                             \
yann@1260:     CC=${cross_cc}                                              \
yann@1260:     CT_DoExecLog ALL                                            \
yann@1759:     "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure"          \
yann@1260:         --build="${CT_BUILD}"                                   \
yann@1260:         --host="${CT_TARGET}"                                   \
yann@1260:         --prefix=/usr                                           \
yann@1260:         --with-headers="${CT_HEADERS_DIR}"                      \
yann@1260:         --without-cvs                                           \
yann@1260:         --disable-sanity-checks                                 \
yann@1260:         --enable-hacker-mode                                    \
yann@1482:         "${extra_config[@]}"                                    \
yann@850:         --without-nptl
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library headers"
yann@850: 
yann@1759:     if grep -q GLIBC_2.3 "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/ChangeLog"; then
yann@850:         # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
yann@850:         # which fails without a real cross-compiler.
yann@850:         # Fortunately, we don't need errlist-compat.c, since we just need .h
yann@850:         # files, so work around this by creating a fake errlist-compat.c and
yann@850:         # satisfying its dependencies.
yann@850:         # Another workaround might be to tell configure to not use any cross
yann@850:         # options to $(CC).
yann@850:         # The real fix would be to get install-headers to not generate
yann@850:         # errlist-compat.c.
yann@850:         # Note: BOOTSTRAP_GCC is used by:
yann@850:         # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
yann@850: 
yann@850:         libc_cv_ppc_machine=yes                         \
yann@850:         CT_DoExecLog ALL                                \
yann@1551:         make CFLAGS="-O2 -DBOOTSTRAP_GCC"               \
yann@850:              OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"    \
yann@1395:              PARALLELMFLAGS="${PARALLELMFLAGS}"         \
yann@850:              sysdeps/gnu/errlist.c
yann@850:         mkdir -p stdio-common
yann@850: 
yann@850:         # sleep for 2 seconds for benefit of filesystems with lousy time
yann@850:         # resolution, like FAT, so make knows for sure errlist-compat.c doesn't
yann@850:         # need generating
yann@850:         sleep 2
yann@850:         CT_DoExecLog ALL touch stdio-common/errlist-compat.c
yann@850:     fi
yann@850:     # Note: BOOTSTRAP_GCC (see above)
yann@850:     libc_cv_ppc_machine=yes                         \
yann@850:     CT_DoExecLog ALL                                \
yann@850:     make cross-compiling=yes                        \
yann@850:          install_root=${CT_SYSROOT_DIR}             \
yann@1551:          CFLAGS="-O2 -DBOOTSTRAP_GCC"               \
yann@850:          ${LIBC_SYSROOT_ARG}                        \
yann@850:          OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"    \
yann@1395:          PARALLELMFLAGS="${PARALLELMFLAGS}"         \
yann@850:          install-headers
yann@850: 
yann@850:     # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
yann@850:     # so do them by hand.  We can tolerate an empty stubs.h for the moment.
yann@850:     # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
yann@850:     mkdir -p "${CT_HEADERS_DIR}/gnu"
yann@850:     CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
yann@1759:     CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h"  \
yann@850:                            "${CT_HEADERS_DIR}/features.h"
yann@850: 
yann@850:     # Building the bootstrap gcc requires either setting inhibit_libc, or
yann@850:     # having a copy of stdio_lim.h... see
yann@850:     # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
yann@850:     CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
yann@850: 
yann@850:     # Following error building gcc-4.0.0's gcj:
yann@850:     #  error: bits/syscall.h: No such file or directory
yann@850:     # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
yann@850:     # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
yann@850:     [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
yann@850: 
yann@850:     # Those headers are to be manually copied so gcc can build properly
yann@1759:     pthread_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/${CT_THREADS}/sysdeps/pthread/pthread.h"
yann@850:     pthreadtypes_h=
yann@850:     case "${CT_THREADS}" in
yann@850:         nptl)
yann@850:             # NOTE: for some archs, the pathes are different, but they are not
yann@850:             # supported by crosstool-NG right now. See original crosstool when they are.
yann@1759:             pthread_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/${CT_THREADS}/sysdeps/pthread/pthread.h"
yann@1759:             pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/nptl/sysdeps/unix/sysv/linux/${arch4hdrs}/bits/pthreadtypes.h"
yann@850:             if [ ! -f "${pthreadtypes_h}" ]; then
yann@1759:                 pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/ports/sysdeps/unix/sysv/linux/${arch4hdrs}/nptl/bits/pthreadtypes.h"
yann@850:             fi
yann@850:             ;;
yann@850:         linuxthreads)
yann@1759:             pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h"
yann@850:             ;;
yann@850:         *)
yann@850:             pthread_h=
yann@850:             pthreadtypes_h=
yann@850:             ;;
yann@850:     esac
yann@850:     if [ -n "${pthread_h}" ]; then
yann@850:         CT_DoExecLog ALL cp -v "${pthread_h}" "${CT_HEADERS_DIR}/pthread.h"
yann@850:     fi
yann@850:     if [ -n "${pthreadtypes_h}" ]; then
yann@850:         CT_DoExecLog ALL cp -v "${pthreadtypes_h}" "${CT_HEADERS_DIR}/bits/pthreadtypes.h"
yann@850:     fi
yann@850: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@850: # Build and install start files
yann@850: do_libc_start_files() {
yann@1482:     local -a extra_config
yann@1260: 
yann@850:     # Needed only in the NPTL case. Otherwise, return.
yann@850:     [ "${CT_THREADS}" = "nptl" ] || return 0
yann@850: 
yann@850:     CT_DoStep INFO "Installing C library start files"
yann@850: 
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
yann@850:     cd "${CT_BUILD_DIR}/build-libc-startfiles"
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:     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
yann@850:         *-tls*) ;;
yann@1482:         *) extra_config+=("--with-tls")
yann@850:     esac
yann@850:     case "${CT_SHARED_LIBS}" in
yann@1482:         y) extra_config+=("--enable-shared");;
yann@1482:         *) extra_config+=("--disable-shared");;
yann@850:     esac
yann@850:     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
yann@1482:         y,) extra_config+=("--with-fp");;
yann@1482:         ,y) extra_config+=("--without-fp");;
yann@850:     esac
yann@850:     # Obviously, we want threads, as we come here only for NPTL
yann@1482:     extra_config+=("--with-__thread")
yann@850: 
yann@850:     addons_config="--enable-add-ons=$(do_libc_add_ons_list ,)"
yann@1482:     extra_config+=("${addons_config}")
yann@850: 
yann@1482:     extra_config+=("$(do_libc_min_kernel_config)")
yann@950: 
yann@850:     # Add some default CC args
yann@1762:     glibc_version="$( grep -E '\<VERSION\>' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/version.h"  \
yann@1762:                       |cut -d '"' -f 2
yann@1762:                     )"
yann@1762:     glibc_version_major=$(echo ${glibc_version} |sed -r -e 's/^([[:digit:]]+).*/\1/')
yann@1762:     glibc_version_minor=$(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 : '$(do_libc_add_ons_list ,)'"
yann@1482:     CT_DoLog DEBUG "Extra config args passed: '${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:     echo "libc_cv_forced_unwind=yes" > config.cache
yann@850:     echo "libc_cv_c_cleanup=yes" >> config.cache
yann@850: 
yann@850:     # Please see the comment for the configure step in do_libc().
yann@850: 
yann@1041:     BUILD_CC="${CT_BUILD}-gcc"                                      \
yann@1551:     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O2"  \
yann@850:     CC="${cross_cc} ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}"      \
yann@850:     AR=${CT_TARGET}-ar                                              \
yann@850:     RANLIB=${CT_TARGET}-ranlib                                      \
yann@850:     CT_DoExecLog ALL                                                \
yann@1759:     "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure"              \
yann@850:         --prefix=/usr                                               \
yann@1041:         --build="${CT_BUILD}"                                       \
yann@850:         --host=${CT_TARGET}                                         \
yann@850:         --without-cvs                                               \
yann@850:         --disable-profile                                           \
yann@850:         --disable-debug                                             \
yann@850:         --without-gd                                                \
yann@850:         --with-headers="${CT_HEADERS_DIR}"                          \
yann@850:         --cache-file=config.cache                                   \
yann@1482:         "${extra_config[@]}"                                        \
yann@850:         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
yann@850: 
yann@850:     #TODO: should check whether slibdir has been set in configparms to */lib64
yann@850:     #      and copy the startfiles into the appropriate libdir.
yann@850:     CT_DoLog EXTRA "Building C library start files"
yann@1395:     CT_DoExecLog ALL make OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
yann@1395:                           PARALLELMFLAGS="${PARALLELMFLAGS}"        \
yann@1395:                           csu/subdir_lib
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library start files"
yann@850:     if [ "${CT_USE_SYSROOT}" = "y" ]; then
yann@850:         CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/usr/lib/"
yann@850:     else
yann@850:         CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/lib/"
yann@850:     fi
yann@850: 
yann@850:     CT_EndStep
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},${CT_ARCH_FLOAT_SW}" in
jimfriel@1486:         y,) extra_config+=("--with-fp");;
jimfriel@1486:         ,y) extra_config+=("--without-fp");;
yann@850:     esac
yann@850: 
yann@850:     case "$(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@1150:     glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([[:digit:]]+).*/\1/')
yann@1150:     glibc_version_minor=$(echo ${CT_LIBC_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 [ "${CT_THREADS}" = "nptl" ]; then
yann@850:         echo libc_cv_forced_unwind=yes
yann@850:         echo libc_cv_c_cleanup=yes
yann@850:     fi >config.cache
yann@850: 
yann@850:     # Configure with --prefix the way we want it on the target...
yann@850:     # There are a whole lot of settings here.  You'll probably want
yann@850:     # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
yann@850:     # Compare these options with the ones used when installing the glibc headers above - they're different.
yann@850:     # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" 
yann@850:     # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. 
yann@850:     # Set BUILD_CC, or you won't be able to build datafiles
yann@850:     # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
yann@850: 
yann@850:     # OK. I'm fed up with those folks telling me what I should do.
yann@850:     # I don't configure nptl? Well, maybe that's purposedly because
yann@850:     # I don't want nptl! --disable-sanity-checks will shut up those
yann@850:     # silly messages. GNU folks again, he?
yann@850: 
yann@1041:     BUILD_CC="${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=${CT_TARGET}-ranlib                                      \
yann@850:     CT_DoExecLog ALL                                                \
yann@1759:     "${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:         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
yann@850: 
yann@1759:     if grep -l '^install-lib-all:' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/Makerules" > /dev/null; then
yann@850:         # nptl-era glibc.
yann@850:         # If the install-lib-all target (which is added by our make-install-lib-all.patch)
yann@850:         # is present, it means we're building glibc-2.3.3 or later, and we can't
yann@850:         # build programs yet, as they require libeh, which won't be installed
yann@850:         # until full build of gcc
yann@850:         # YEM-FIXME: This comment is misleading: latest glibc-s do not have the
yann@850:         #            make-install-lib-all.patch applied, so do not pass through this
yann@850:         #            part of the if statement; nonetheless, they do build, and
yann@850:         #            the result is useable (maybe the dual-pass core gcc is
yann@850:         #            responsible for this).
yann@850:         GLIBC_INITIAL_BUILD_RULE=lib
yann@850:         GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
yann@850:         GLIBC_INSTALL_APPS_LATER=yes
yann@850:     else
yann@850:         # classic glibc.  
yann@850:         # We can build and install everything with the bootstrap compiler.
yann@850:         # YEM-FIXME: See the above FIXME as well.
yann@850:         GLIBC_INITIAL_BUILD_RULE=all
yann@850:         GLIBC_INITIAL_INSTALL_RULE=install
yann@850:         GLIBC_INSTALL_APPS_LATER=no
yann@850:     fi
yann@850: 
yann@1016:     # glibc initial build hacks
yann@1016:     # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
yann@1016:     case "${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="${GLIBC_INITIAL_BUILD_ASFLAGS}"  \
yann@1395:                           PARALLELMFLAGS="${PARALLELMFLAGS}"        \
yann@1395:                           ${GLIBC_INITIAL_BUILD_RULE}
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library"
yann@850:     CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}"          \
yann@850:                           ${LIBC_SYSROOT_ARG}                       \
yann@850:                           OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
yann@1395:                           PARALLELMFLAGS="${PARALLELMFLAGS}"        \
yann@850:                           ${GLIBC_INITIAL_INSTALL_RULE}
yann@850: 
yann@850:     # This doesn't seem to work when building a crosscompiler,
yann@850:     # as it tries to execute localedef using the just-built ld.so!?
yann@850:     #CT_DoLog EXTRA "Installing locales"
yann@850:     #make localedata/install-locales install_root=${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}/${file}"
yann@850:             fi
yann@850:         done
yann@850:     done
yann@850: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@850: # This function finishes the glibc install
yann@850: do_libc_finish() {
yann@850:     # Finally, build and install glibc programs, now that libeh (if any) is installed
yann@850:     # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
yann@850:     # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
yann@850:     # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
yann@850:     [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
yann@850: 
yann@850:     CT_DoStep INFO "Finishing C library"
yann@850: 
yann@850:     cd "${CT_BUILD_DIR}/build-libc"
yann@850: 
yann@850:     CT_DoLog EXTRA "Re-building C library"
yann@1395:     CT_DoExecLog ALL make LD=${CT_TARGET}-ld                        \
yann@1395:                           RANLIB=${CT_TARGET}-ranlib                \
yann@1395:                           OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
yann@1395:                           ASFLAGS="${GLIBC_INITIAL_BUILD_ASFLAGS}"  \
yann@1395:                           PARALLELMFLAGS="${PARALLELMFLAGS}"
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing missing C library components"
yann@850:     # note: should do full install and then fix linker scripts, but this is faster
yann@850:     for t in bin rootsbin sbin data others; do
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@1395:                               PARALLELMFLAGS="${PARALLELMFLAGS}"        \
yann@850:                               install-${t}
yann@850:     done
yann@850: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@850: # Build up the addons list, separated with $1
yann@850: do_libc_add_ons_list() {
yann@850:     local sep="$1"
yann@950:     local addons_list=$(echo "${CT_LIBC_ADDONS_LIST}" |sed -r -e "s/[ ,]/${sep}/g;")
yann@850:     case "${CT_THREADS}" in
yann@850:         none)   ;;
yann@850:         *)      addons_list="${addons_list}${sep}${CT_THREADS}";;
yann@850:     esac
yann@850:     [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
yann@950:     # Remove duplicate, leading and trailing separators
yann@950:     echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"
yann@850: }
yann@850: 
yann@950: # Builds up the minimum supported Linux kernel version
yann@950: do_libc_min_kernel_config() {
yann@950:     local min_kernel_config=
yann@950:     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
yann@950:         *enable-kernel*) ;;
yann@950:         *)  if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
yann@950:                 # We can't rely on the kernel version from the configuration,
yann@950:                 # because it might not be available if the user uses pre-installed
yann@950:                 # headers. On the other hand, both method will have the kernel
yann@950:                 # version installed in "usr/include/linux/version.h" in the sys-root.
yann@950:                 # Parse that instead of having two code-paths.
yann@950:                 version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"
yann@950:                 CT_TestOrAbort "Linux version is unavailable in installed headers files" -f "${version_code_file}" -a -r "${version_code_file}"
yann@950:                 version_code=$(grep -E LINUX_VERSION_CODE "${version_code_file}" |cut -d ' ' -f 3)
yann@950:                 version=$(((version_code>>16)&0xFF))
yann@950:                 patchlevel=$(((version_code>>8)&0xFF))
yann@950:                 sublevel=$((version_code&0xFF))
yann@950:                 min_kernel_config="--enable-kernel=${version}.${patchlevel}.${sublevel}"
yann@950:             elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then
yann@950:                 # Trim the fourth part of the linux version, keeping only the first three numbers
yann@950:                 min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
yann@950:             fi
yann@950:             ;;
yann@950:     esac
yann@950:     echo "${min_kernel_config}"
yann@950: }