yann@2270: # This file contains the functions common to glibc and eglibc
yann@850: 
yann@2270: # Build and install headers file
yann@2270: # This is a no-op
yann@850: do_libc_headers() {
yann@850:     :
yann@850: }
yann@850: 
yann@2270: # Build and install headers and start files
yann@850: do_libc_start_files() {
yann@2271:     local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
yann@2271: 
yann@850:     CT_DoStep INFO "Installing C library headers / start files"
yann@850: 
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
yann@850:     cd "${CT_BUILD_DIR}/build-libc-startfiles"
yann@850: 
yann@850:     CT_DoLog EXTRA "Configuring C library"
yann@850: 
yann@2271:     case "${CT_LIBC}" in
yann@2271:         eglibc)
yann@2271:             if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
yann@2271:                 CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
yann@2271:             fi
yann@2271:             ;;
yann@2271:     esac
avrac@1569: 
yann@850:     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
yann@850:     cross_cxx=$(CT_Which "${CT_TARGET}-g++")
yann@850:     cross_ar=$(CT_Which "${CT_TARGET}-ar")
yann@850:     cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib")
yann@2271: 
yann@850:     CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
yann@850:     CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'"
yann@850:     CT_DoLog DEBUG "Using ar for target: '${cross_ar}'"
yann@850:     CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'"
yann@850: 
yann@1123:     BUILD_CC="${CT_BUILD}-gcc"                          \
yann@1123:     CC=${cross_cc}                                      \
yann@1123:     CXX=${cross_cxx}                                    \
yann@1123:     AR=${cross_ar}                                      \
yann@1123:     RANLIB=${cross_ranlib}                              \
anthony@2154:     CT_DoExecLog CFG                                    \
yann@2271:     "${src_dir}/configure"                              \
yann@1123:         --prefix=/usr                                   \
yann@1123:         --with-headers="${CT_HEADERS_DIR}"              \
yann@1123:         --build="${CT_BUILD}"                           \
yann@1123:         --host="${CT_TARGET}"                           \
yann@1123:         --disable-profile                               \
yann@1123:         --without-gd                                    \
yann@1123:         --without-cvs                                   \
yann@850:         --enable-add-ons
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library headers"
yann@850: 
yann@850:     # use the 'install-headers' makefile target to install the
yann@850:     # headers
yann@850:     CT_DoExecLog ALL                    \
yann@850:     make install-headers                \
yann@850:          install_root=${CT_SYSROOT_DIR} \
yann@850:          install-bootstrap-headers=yes
yann@850: 
yann@2272:     # For glibc, a few headers need to be manually installed
yann@2272:     if [ "${CT_LIBC}" = "glibc" ]; then
yann@2272:         # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
yann@2272:         # so do them by hand.  We can tolerate an empty stubs.h for the moment.
yann@2272:         # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
yann@2272:         mkdir -p "${CT_HEADERS_DIR}/gnu"
yann@2272:         CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
yann@2272:         CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h"  \
yann@2272:                                "${CT_HEADERS_DIR}/features.h"
yann@2272: 
yann@2272:         # Building the bootstrap gcc requires either setting inhibit_libc, or
yann@2272:         # having a copy of stdio_lim.h... see
yann@2272:         # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
yann@2272:         CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
yann@2272: 
yann@2272:         # Following error building gcc-4.0.0's gcj:
yann@2272:         #  error: bits/syscall.h: No such file or directory
yann@2272:         # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
yann@2272:         # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
yann@2272:         [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
yann@2272:     fi
yann@2272: 
yann@850:     CT_DoLog EXTRA "Installing C library start files"
yann@850: 
yann@850:     # there are a few object files needed to link shared libraries,
yann@850:     # which we build and install by hand
yann@2271:     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
yann@850:     CT_DoExecLog ALL make csu/subdir_lib
yann@850:     CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \
yann@2271:                         "${CT_SYSROOT_DIR}/usr/lib"
yann@850: 
yann@2271:     # Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
yann@2271:     # However, since we will never actually execute its code,
yann@2271:     # it doesn't matter what it contains.  So, treating '/dev/null'
yann@850:     # as a C source file, we produce a dummy 'libc.so' in one step
yann@2271:     CT_DoExecLog ALL "${cross_cc}" -nostdlib        \
yann@2271:                                    -nostartfiles    \
yann@2271:                                    -shared          \
yann@2271:                                    -x c /dev/null   \
yann@2271:                                    -o "${CT_SYSROOT_DIR}/usr/lib/libc.so"
yann@850: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@2270: # This function builds and install the full C library
yann@850: do_libc() {
yann@2271:     local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
yann@1478:     local -a extra_config
yann@2271:     local -a extra_make_args
yann@1478: 
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@2271:     case "${CT_LIBC}" in
yann@2271:         eglibc)
yann@2271:             if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
yann@2271:                 CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
yann@2271:             fi
yann@2271:             if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then
yann@2271:                 OPTIMIZE=-Os
yann@2271:             else
yann@2271:                 OPTIMIZE=-O2
yann@2271:             fi
yann@2271:             ;;
yann@2271:     esac
richard@1796: 
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@1478:     extra_config+=("--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')")
yann@850: 
yann@850:     case "${CT_THREADS}" in
yann@1478:         nptl)           extra_config+=("--with-__thread" "--with-tls");;
yann@1478:         linuxthreads)   extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;
yann@1478:         none)           extra_config+=("--without-__thread" "--without-nptl")
yann@850:                         case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
yann@850:                             *-tls*) ;;
yann@1478:                             *) extra_config+=("--without-tls");;
yann@850:                         esac
yann@850:                         ;;
yann@850:     esac
yann@850: 
yann@850:     case "${CT_SHARED_LIBS}" in
yann@1478:         y) extra_config+=("--enable-shared");;
yann@1478:         *) extra_config+=("--disable-shared");;
yann@850:     esac
yann@850: 
yann@850:     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
yann@1478:         y,) extra_config+=("--with-fp");;
yann@1478:         ,y) extra_config+=("--without-fp");;
yann@850:     esac
yann@850: 
bryanhundven@2180:     if [ "${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 "$(do_libc_add_ons_list ,)" in
yann@850:         "") ;;
yann@1478:         *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
yann@850:     esac
yann@850: 
yann@850:     extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
yann@850: 
yann@850:     cross_cc=$(CT_Which "${CT_TARGET}-gcc")    
yann@850: 
yann@850:     CT_DoLog DEBUG "Using gcc for target:     '${cross_cc}'"
yann@850:     CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
yann@1478:     CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
yann@850:     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
yann@850: 
bryanhundven@2229:     # ./configure is mislead by our tools override wrapper for bash
bryanhundven@2229:     # so just tell it where the real bash is _on_the_target_!
bryanhundven@2229:     # Notes:
bryanhundven@2229:     # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL
bryanhundven@2229:     # - ${BASH_SHELL}            is only used to set BASH
bryanhundven@2229:     # - ${BASH}                  is only used to set the shebang
bryanhundven@2229:     #                            in two scripts to run on the target
bryanhundven@2229:     # So we can safely bypass bash detection at compile time.
bryanhundven@2229:     # Should this change in a future eglibc release, we'd better
bryanhundven@2229:     # directly mangle the generated scripts _after_ they get built,
bryanhundven@2229:     # or even after they get installed... eglibc is such a sucker...
bryanhundven@2229:     echo "ac_cv_path_BASH_SHELL=/bin/bash" >config.cache
bryanhundven@2229: 
yann@1041:     BUILD_CC="${CT_BUILD}-gcc"                                      \
richard@1796:     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}"  \
yann@850:     CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
yann@850:     AR=${CT_TARGET}-ar                                              \
yann@850:     RANLIB=${CT_TARGET}-ranlib                                      \
anthony@2154:     CT_DoExecLog CFG                                                \
yann@2271:     "${src_dir}/configure"                                          \
yann@850:         --prefix=/usr                                               \
yann@850:         --with-headers="${CT_HEADERS_DIR}"                          \
yann@1041:         --build=${CT_BUILD}                                         \
yann@850:         --host=${CT_TARGET}                                         \
yann@850:         --disable-profile                                           \
yann@850:         --without-gd                                                \
yann@850:         --without-cvs                                               \
bryanhundven@2229:         --cache-file=config.cache                                   \
yann@1478:         "${extra_config[@]}"                                        \
yann@850:         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
yann@850:     
yann@850:     CT_DoLog EXTRA "Building C library"
yann@850: 
yann@1328:     # eglibc build hacks
yann@2271:     case "${CT_LIBC}" in
yann@2271:         eglibc)
yann@2271:             case "${CT_ARCH},${CT_ARCH_CPU}" in
yann@2271:                 powerpc,8??)
yann@2271:                     # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
yann@2271:                     CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
yann@2271:                     extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" )
yann@2271:                     ;;
yann@2271:             esac
yann@2271:             ;;
yann@1328:     esac
yann@1328: 
yann@2271:     CT_DoExecLog ALL make -j${CT_PARALLEL_JOBS} "${extra_make_args[@]}"
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing C library"
yann@850: 
yann@2271:     CT_DoExecLog ALL make install "${extra_make_args[@]}" install_root="${CT_SYSROOT_DIR}"
yann@850: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@2270: # This function finishes the C library install
yann@2270: # This is a no-op
yann@850: do_libc_finish() {
yann@850:     :
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="$1"
yann@850:     local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,)
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}${sep}ports"
yann@850:     addons_list="${addons_list%%${sep}}"
yann@850:     echo "${addons_list##${sep}}"
yann@850: }