# This file adds functions to build glibc # Copyright 2007 Yann E. MORIN # Licensed under the GPL v2. See COPYING in the root of this package # Download glibc do_libc_get() { local date local version local -a addons_list addons_list=($(do_libc_add_ons_list " ")) # Main source CT_GetFile "glibc-${CT_LIBC_VERSION}" \ {ftp,http}://ftp.gnu.org/gnu/glibc \ ftp://gcc.gnu.org/pub/glibc/releases \ ftp://gcc.gnu.org/pub/glibc/snapshots # C library addons for addon in "${addons_list[@]}"; do # NPTL addon is not to be downloaded, in any case [ "${addon}" = "nptl" ] && continue || true CT_GetFile "glibc-${addon}-${CT_LIBC_VERSION}" \ {ftp,http}://ftp.gnu.org/gnu/glibc \ ftp://gcc.gnu.org/pub/glibc/releases \ ftp://gcc.gnu.org/pub/glibc/snapshots done return 0 } # Extract glibc do_libc_extract() { local -a addons_list addons_list=($(do_libc_add_ons_list " ")) CT_Extract "glibc-${CT_LIBC_VERSION}" CT_Pushd "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}" CT_Patch nochdir "glibc" "${CT_LIBC_VERSION}" # C library addons for addon in "${addons_list[@]}"; do # NPTL addon is not to be extracted, in any case [ "${addon}" = "nptl" ] && continue || true CT_Extract nochdir "glibc-${addon}-${CT_LIBC_VERSION}" # Some addons have the 'long' name, while others have the # 'short' name, but patches are non-uniformly built with # either the 'long' or 'short' name, whatever the addons name # so we have to make symlinks from the existing to the missing # Fortunately for us, [ -d foo ], when foo is a symlink to a # directory, returns true! [ -d "${addon}" ] || CT_DoExecLog ALL ln -s "glibc-${addon}-${CT_LIBC_VERSION}" "${addon}" [ -d "glibc-${addon}-${CT_LIBC_VERSION}" ] || CT_DoExecLog ALL ln -s "${addon}" "glibc-${addon}-${CT_LIBC_VERSION}" CT_Patch nochdir "glibc" "${addon}-${CT_LIBC_VERSION}" done # The configure files may be older than the configure.in files # if using a snapshot (or even some tarballs). Fake them being # up to date. sleep 2 find . -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL CT_Popd return 0 } # There is nothing to do for glibc check config do_libc_check_config() { : } # This function installs the glibc headers needed to build the core compiler do_libc_headers() { local -a extra_config local arch4hdrs CT_DoStep INFO "Installing C library headers" mkdir -p "${CT_BUILD_DIR}/build-libc-headers" cd "${CT_BUILD_DIR}/build-libc-headers" CT_DoLog EXTRA "Configuring C library" # The x86 arch needs special care... Bizarelly enough... :-( case "${CT_ARCH}:${CT_ARCH_BITNESS}" in x86:32) arch4hdrs="i386";; x86:64) arch4hdrs="x86_64";; *) arch4hdrs="${CT_ARCH}";; esac # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions. # 1. override CC to keep glibc's configure from using $TARGET-gcc. # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly # 3. build with gcc 3.2 or later # Compare these options with the ones used when building glibc for real below - they're different. # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode # so when configure checks to make sure gcc has access to the assembler you just built... # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path. # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet) # Note: the warning # "*** WARNING: Are you sure you do not want to use the `linuxthreads'" # *** add-on?" # is ok here, since all we want are the basic headers at this point. # Override libc_cv_ppc_machine so glibc-cvs doesn't complain # 'a version of binutils that supports .machine "altivec" is needed'. # We need to remove any threading addon when installing headers addons_list="$(do_libc_add_ons_list " " \ |sed -r -e 's/\<(nptl|linuxthreads)\>/ /g;' \ -e 's/ +/,/g; s/^,+//; s/,+$//;' \ )" extra_config+=("--enable-add-ons=${addons_list}") extra_config+=("${addons_config}") extra_config+=("$(do_libc_min_kernel_config)") # Pre-seed the configparms file with values from the config option printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms cross_cc=$(CT_Which "${CT_TARGET}-gcc") CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'" CT_DoLog DEBUG "Extra config passed : '${extra_config[*]}'" libc_cv_ppc_machine=yes \ libc_cv_mlong_double_128=yes \ libc_cv_mlong_double_128ibm=yes \ CC=${cross_cc} \ CT_DoExecLog CFG \ "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure" \ --build="${CT_BUILD}" \ --host="${CT_TARGET}" \ --prefix=/usr \ --with-headers="${CT_HEADERS_DIR}" \ --without-cvs \ --disable-sanity-checks \ --enable-hacker-mode \ "${extra_config[@]}" \ --without-nptl CT_DoLog EXTRA "Installing C library headers" if grep -q GLIBC_2.3 "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/ChangeLog"; then # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c, # which fails without a real cross-compiler. # Fortunately, we don't need errlist-compat.c, since we just need .h # files, so work around this by creating a fake errlist-compat.c and # satisfying its dependencies. # Another workaround might be to tell configure to not use any cross # options to $(CC). # The real fix would be to get install-headers to not generate # errlist-compat.c. # Note: BOOTSTRAP_GCC is used by: # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch libc_cv_ppc_machine=yes \ CT_DoExecLog ALL \ make CFLAGS="-O2 -DBOOTSTRAP_GCC" \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ sysdeps/gnu/errlist.c mkdir -p stdio-common # sleep for 2 seconds for benefit of filesystems with lousy time # resolution, like FAT, so make knows for sure errlist-compat.c doesn't # need generating sleep 2 CT_DoExecLog ALL touch stdio-common/errlist-compat.c fi # Note: BOOTSTRAP_GCC (see above) libc_cv_ppc_machine=yes \ CT_DoExecLog ALL \ make cross-compiling=yes \ install_root=${CT_SYSROOT_DIR} \ CFLAGS="-O2 -DBOOTSTRAP_GCC" \ ${LIBC_SYSROOT_ARG} \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ install-headers # Two headers -- stubs.h and features.h -- aren't installed by install-headers, # so do them by hand. We can tolerate an empty stubs.h for the moment. # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html mkdir -p "${CT_HEADERS_DIR}/gnu" CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h" CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h" \ "${CT_HEADERS_DIR}/features.h" # Building the bootstrap gcc requires either setting inhibit_libc, or # having a copy of stdio_lim.h... see # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h" # Following error building gcc-4.0.0's gcj: # error: bits/syscall.h: No such file or directory # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true # Those headers are to be manually copied so gcc can build properly pthread_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/${CT_THREADS}/sysdeps/pthread/pthread.h" pthreadtypes_h= case "${CT_THREADS}" in nptl) # NOTE: for some archs, the pathes are different, but they are not # supported by crosstool-NG right now. See original crosstool when they are. pthread_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/${CT_THREADS}/sysdeps/pthread/pthread.h" pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/nptl/sysdeps/unix/sysv/linux/${arch4hdrs}/bits/pthreadtypes.h" if [ ! -f "${pthreadtypes_h}" ]; then pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/ports/sysdeps/unix/sysv/linux/${arch4hdrs}/nptl/bits/pthreadtypes.h" fi ;; linuxthreads) pthreadtypes_h="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h" ;; *) pthread_h= pthreadtypes_h= ;; esac if [ -n "${pthread_h}" ]; then CT_DoExecLog ALL cp -v "${pthread_h}" "${CT_HEADERS_DIR}/pthread.h" fi if [ -n "${pthreadtypes_h}" ]; then CT_DoExecLog ALL cp -v "${pthreadtypes_h}" "${CT_HEADERS_DIR}/bits/pthreadtypes.h" fi CT_EndStep } # Build and install start files do_libc_start_files() { local -a extra_config # Needed only in the NPTL case. Otherwise, return. [ "${CT_THREADS}" = "nptl" ] || return 0 CT_DoStep INFO "Installing C library start files" mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles" cd "${CT_BUILD_DIR}/build-libc-startfiles" CT_DoLog EXTRA "Configuring C library" # Add some default glibc config options if not given by user. case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *-tls*) ;; *) extra_config+=("--with-tls") esac case "${CT_SHARED_LIBS}" in y) extra_config+=("--enable-shared");; *) extra_config+=("--disable-shared");; esac case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in y,) extra_config+=("--with-fp");; ,y) extra_config+=("--without-fp");; esac # Obviously, we want threads, as we come here only for NPTL extra_config+=("--with-__thread") addons_config="--enable-add-ons=$(do_libc_add_ons_list ,)" extra_config+=("${addons_config}") extra_config+=("$(do_libc_min_kernel_config)") # Add some default CC args glibc_version="$( grep -E '\' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/version.h" \ |cut -d '"' -f 2 )" glibc_version_major=$(echo ${glibc_version} |sed -r -e 's/^([[:digit:]]+).*/\1/') glibc_version_minor=$(echo ${glibc_version} |sed -r -e 's/^[[:digit:]]+[\.-_]([[:digit:]]+).*/\1/') if [ ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6 \ -o ${glibc_version_major} -gt 2 ]; then # Don't use -pipe: configure chokes on it for glibc >= 2.6. CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y" extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}" else extra_cc_args="${CT_CFLAGS_FOR_HOST}" fi extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}" cross_cc=$(CT_Which "${CT_TARGET}-gcc") CT_DoLog DEBUG "Using gcc for target : '${cross_cc}'" CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'" CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'" CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'" # Pre-seed the configparms file with values from the config option printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms echo "libc_cv_forced_unwind=yes" > config.cache echo "libc_cv_c_cleanup=yes" >> config.cache # Please see the comment for the configure step in do_libc(). BUILD_CC="${CT_BUILD}-gcc" \ CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O2" \ CC="${cross_cc} ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ AR=${CT_TARGET}-ar \ RANLIB=${CT_TARGET}-ranlib \ CT_DoExecLog CFG \ "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure" \ --prefix=/usr \ --build="${CT_BUILD}" \ --host=${CT_TARGET} \ --without-cvs \ --disable-profile \ --disable-debug \ --without-gd \ --with-headers="${CT_HEADERS_DIR}" \ --cache-file=config.cache \ "${extra_config[@]}" \ ${CT_LIBC_GLIBC_EXTRA_CONFIG} #TODO: should check whether slibdir has been set in configparms to */lib64 # and copy the startfiles into the appropriate libdir. CT_DoLog EXTRA "Building C library start files" CT_DoExecLog ALL make OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ csu/subdir_lib CT_DoLog EXTRA "Installing C library start files" if [ "${CT_USE_SYSROOT}" = "y" ]; then CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/usr/lib/" else CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/lib/" fi CT_EndStep } # This function builds and install the full glibc do_libc() { local -a extra_config CT_DoStep INFO "Installing C library" mkdir -p "${CT_BUILD_DIR}/build-libc" cd "${CT_BUILD_DIR}/build-libc" CT_DoLog EXTRA "Configuring C library" # Add some default glibc config options if not given by user. # We don't need to be conditional on wether the user did set different # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config case "${CT_THREADS}" in nptl) extra_config+=("--with-__thread" "--with-tls");; linuxthreads) extra_config+=("--with-__thread" "--without-tls" "--without-nptl");; none) extra_config+=("--without-__thread" "--without-nptl") case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *-tls*) ;; *) extra_config+=("--without-tls");; esac ;; esac case "${CT_SHARED_LIBS}" in y) extra_config+=("--enable-shared");; *) extra_config+=("--disable-shared");; esac case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in y,) extra_config+=("--with-fp");; ,y) extra_config+=("--without-fp");; esac case "$(do_libc_add_ons_list ,)" in "") ;; *) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");; esac extra_config+=("$(do_libc_min_kernel_config)") # Add some default CC args glibc_version="$( grep -E '\' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/version.h" \ |cut -d '"' -f 2 )" glibc_version_major=$(echo ${glibc_version} |sed -r -e 's/^([[:digit:]]+).*/\1/') glibc_version_minor=$(echo ${glibc_version} |sed -r -e 's/^[[:digit:]]+[\.-_]([[:digit:]]+).*/\1/') if [ ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6 \ -o ${glibc_version_major} -gt 2 ]; then # Don't use -pipe: configure chokes on it for glibc >= 2.6. CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y" extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}" else extra_cc_args="${CT_CFLAGS_FOR_HOST}" fi extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}" cross_cc=$(CT_Which "${CT_TARGET}-gcc") CT_DoLog DEBUG "Using gcc for target : '${cross_cc}'" CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'" CT_DoLog DEBUG "Extra config args passed: '${extra_config}'" CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'" # Pre-seed the configparms file with values from the config option printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms # For glibc 2.3.4 and later we need to set some autoconf cache # variables, because nptl/sysdeps/pthread/configure.in does not # work when cross-compiling. if [ "${CT_THREADS}" = "nptl" ]; then echo libc_cv_forced_unwind=yes echo libc_cv_c_cleanup=yes fi >config.cache # ./configure is mislead by our tools override wrapper for bash # so just tell it where the real bash is _on_the_target_! # Notes: # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL # - ${BASH_SHELL} is only used to set BASH # - ${BASH} is only used to set the shebang # in two scripts to run on the target # So we can safely bypass bash detection at compile time. # Should this change in a future glibc release, we'd better # directly mangle the generated scripts _after_ they get built, # or even after they get installed... glibc is such a sucker... echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache # Configure with --prefix the way we want it on the target... # There are a whole lot of settings here. You'll probably want # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG # Compare these options with the ones used when installing the glibc headers above - they're different. # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. # Set BUILD_CC, or you won't be able to build datafiles # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs # OK. I'm fed up with those folks telling me what I should do. # I don't configure nptl? Well, maybe that's purposedly because # I don't want nptl! --disable-sanity-checks will shut up those # silly messages. GNU folks again, he? BUILD_CC="${CT_BUILD}-gcc" \ CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O2" \ CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ AR=${CT_TARGET}-ar \ RANLIB=${CT_TARGET}-ranlib \ CT_DoExecLog CFG \ "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/configure" \ --prefix=/usr \ --build=${CT_BUILD} \ --host=${CT_TARGET} \ --without-cvs \ --disable-profile \ --disable-debug \ --without-gd \ --disable-sanity-checks \ --cache-file=config.cache \ --with-headers="${CT_HEADERS_DIR}" \ "${extra_config[@]}" \ ${CT_LIBC_GLIBC_EXTRA_CONFIG} if grep -l '^install-lib-all:' "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/Makerules" > /dev/null; then # nptl-era glibc. # If the install-lib-all target (which is added by our make-install-lib-all.patch) # is present, it means we're building glibc-2.3.3 or later, and we can't # build programs yet, as they require libeh, which won't be installed # until full build of gcc # YEM-FIXME: This comment is misleading: latest glibc-s do not have the # make-install-lib-all.patch applied, so do not pass through this # part of the if statement; nonetheless, they do build, and # the result is useable (maybe the dual-pass core gcc is # responsible for this). GLIBC_INITIAL_BUILD_RULE=lib GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers" GLIBC_INSTALL_APPS_LATER=yes else # classic glibc. # We can build and install everything with the bootstrap compiler. # YEM-FIXME: See the above FIXME as well. GLIBC_INITIAL_BUILD_RULE=all GLIBC_INITIAL_INSTALL_RULE=install GLIBC_INSTALL_APPS_LATER=no fi # glibc initial build hacks # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html case "${CT_ARCH},${CT_ARCH_CPU}" in powerpc,8??) CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)" GLIBC_INITIAL_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";; esac # If this fails with an error like this: # ... linux/autoconf.h: No such file or directory # then you need to set the KERNELCONFIG variable to point to a .config file for this arch. # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx CT_DoLog EXTRA "Building C library" CT_DoExecLog ALL make LD=${CT_TARGET}-ld \ RANLIB=${CT_TARGET}-ranlib \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ ASFLAGS="${GLIBC_INITIAL_BUILD_ASFLAGS}" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ ${GLIBC_INITIAL_BUILD_RULE} CT_DoLog EXTRA "Installing C library" CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}" \ ${LIBC_SYSROOT_ARG} \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ ${GLIBC_INITIAL_INSTALL_RULE} # This doesn't seem to work when building a crosscompiler, # as it tries to execute localedef using the just-built ld.so!? #CT_DoLog EXTRA "Installing locales" #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL # Fix problems in linker scripts. # # Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html, # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm # No need to look into the lib64/ dirs here and there, they point to the # corresponding lib/ directories. # # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig CT_DoLog EXTRA "Fixing C library linker scripts" for file in libc.so libpthread.so libgcc_s.so; do for dir in lib usr/lib; do if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then CT_DoExecLog ALL cp -v "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig" CT_DoLog DEBUG "Fixing '${CT_SYS_ROOT_DIR}/${dir}/${file}'" CT_DoExecLog ALL sed -i -r -e '/BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}" fi done done CT_EndStep } # This function finishes the glibc install do_libc_finish() { # Finally, build and install glibc programs, now that libeh (if any) is installed # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info' # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info' [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0 CT_DoStep INFO "Finishing C library" cd "${CT_BUILD_DIR}/build-libc" CT_DoLog EXTRA "Re-building C library" CT_DoExecLog ALL make LD=${CT_TARGET}-ld \ RANLIB=${CT_TARGET}-ranlib \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ ASFLAGS="${GLIBC_INITIAL_BUILD_ASFLAGS}" \ PARALLELMFLAGS="${PARALLELMFLAGS}" CT_DoLog EXTRA "Installing missing C library components" # note: should do full install and then fix linker scripts, but this is faster for t in bin rootsbin sbin data others; do CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}" \ ${LIBC_SYSROOT_ARG} \ OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \ PARALLELMFLAGS="${PARALLELMFLAGS}" \ install-${t} done CT_EndStep } # Build up the addons list, separated with $1 do_libc_add_ons_list() { local sep="$1" local addons_list=$(echo "${CT_LIBC_ADDONS_LIST}" |sed -r -e "s/[ ,]/${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}\$//;" } # Builds up the minimum supported Linux kernel version do_libc_min_kernel_config() { local min_kernel_config= case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *enable-kernel*) ;; *) if [ "${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 sys-root. # 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="--enable-kernel=${version}.${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="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')" fi ;; esac echo "${min_kernel_config}" }