crosstool-ng: scripts/build/libc/glibc-eglibc.sh-common@71803c9f6de0

     1 # This file contains the functions common to glibc and eglibc

     3 # Build and install headers file

     4 # This is a no-op

     5 do_libc_headers() {

     6     :

7 }

     9 # Build and install headers and start files

    10 do_libc_start_files() {

    11     local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"

    13     CT_DoStep INFO "Installing C library headers & start files"

    15     mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"

    16     cd "${CT_BUILD_DIR}/build-libc-startfiles"

    18     CT_DoLog EXTRA "Configuring C library"

    20     case "${CT_LIBC}" in

    21         eglibc)

    22             if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then

    23                 CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config

    24             fi

    25             ;;

    26     esac

    28     cross_cc=$(CT_Which "${CT_TARGET}-gcc")

    29     cross_cxx=$(CT_Which "${CT_TARGET}-g++")

    30     cross_ar=$(CT_Which "${CT_TARGET}-ar")

    31     cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib")

    33     CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"

    34     CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'"

    35     CT_DoLog DEBUG "Using ar for target: '${cross_ar}'"

    36     CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'"

    38     BUILD_CC="${CT_BUILD}-gcc"                          \

    39     CC=${cross_cc}                                      \

    40     CXX=${cross_cxx}                                    \

    41     AR=${cross_ar}                                      \

    42     RANLIB=${cross_ranlib}                              \

    43     CT_DoExecLog CFG                                    \

    44     "${src_dir}/configure"                              \

    45         --prefix=/usr                                   \

    46         --with-headers="${CT_HEADERS_DIR}"              \

    47         --build="${CT_BUILD}"                           \

    48         --host="${CT_TARGET}"                           \

    49         --disable-profile                               \

    50         --without-gd                                    \

    51         --without-cvs                                   \

    52         --enable-add-ons

    54     CT_DoLog EXTRA "Installing C library headers"

    56     # use the 'install-headers' makefile target to install the

    57     # headers

    58     CT_DoExecLog ALL make ${JOBSFLAGS}              \

    59                      install_root=${CT_SYSROOT_DIR} \

    60                      install-bootstrap-headers=yes  \

    61                      install-headers

    63     # For glibc, a few headers need to be manually installed

    64     if [ "${CT_LIBC}" = "glibc" ]; then

    65         # Two headers -- stubs.h and features.h -- aren't installed by install-headers,

    66         # so do them by hand.  We can tolerate an empty stubs.h for the moment.

    67         # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html

    68         mkdir -p "${CT_HEADERS_DIR}/gnu"

    69         CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"

    70         CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h"  \

    71                                "${CT_HEADERS_DIR}/features.h"

    73         # Building the bootstrap gcc requires either setting inhibit_libc, or

    74         # having a copy of stdio_lim.h... see

    75         # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html

    76         CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"

    78         # Following error building gcc-4.0.0's gcj:

    79         #  error: bits/syscall.h: No such file or directory

    80         # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html

    81         # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html

    82         [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true

    83     fi

    85     CT_DoLog EXTRA "Installing C library start files"

    87     # there are a few object files needed to link shared libraries,

    88     # which we build and install by hand

    89     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/lib"

    90     CT_DoExecLog ALL make ${JOBSFLAGS} csu/subdir_lib

    91     CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \

    92                         "${CT_SYSROOT_DIR}/usr/lib"

    94     # Finally, 'libgcc_s.so' requires a 'libc.so' to link against.

    95     # However, since we will never actually execute its code,

    96     # it doesn't matter what it contains.  So, treating '/dev/null'

    97     # as a C source file, we produce a dummy 'libc.so' in one step

    98     CT_DoExecLog ALL "${cross_cc}" -nostdlib        \

    99                                    -nostartfiles    \

   100                                    -shared          \

   101                                    -x c /dev/null   \

   102                                    -o "${CT_SYSROOT_DIR}/usr/lib/libc.so"

   104     CT_EndStep

   105 }

   107 # This function builds and install the full C library

   108 do_libc() {

   109     local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"

   110     local extra_cc_args

   111     local -a extra_config

   112     local -a extra_make_args

   114     CT_DoStep INFO "Installing C library"

   116     mkdir -p "${CT_BUILD_DIR}/build-libc"

   117     cd "${CT_BUILD_DIR}/build-libc"

   119     CT_DoLog EXTRA "Configuring C library"

   121     case "${CT_LIBC}" in

   122         eglibc)

   123             if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then

   124                 CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config

   125             fi

   126             if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then

   127                 OPTIMIZE=-Os

   128             else

   129                 OPTIMIZE=-O2

   130             fi

   131             ;;

   132         glibc)

   133             # glibc can't be built without -O2 (reference needed!)

   134             OPTIMIZE=-O2

   135             # Also, if those two are missing, iconv build breaks

   136             extra_config+=( --disable-debug --disable-sanity-checks )

   137             ;;

   138     esac

   140     # Add some default glibc config options if not given by user.

   141     # We don't need to be conditional on wether the user did set different

   142     # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config

   144     extra_config+=("$(do_libc_min_kernel_config)")

   146     case "${CT_THREADS}" in

   147         nptl)           extra_config+=("--with-__thread" "--with-tls");;

   148         linuxthreads)   extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;

   149         none)           extra_config+=("--without-__thread" "--without-nptl")

   150                         case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in

   151                             *-tls*) ;;

   152                             *) extra_config+=("--without-tls");;

   153                         esac

   154                         ;;

   155     esac

   157     case "${CT_SHARED_LIBS}" in

   158         y) extra_config+=("--enable-shared");;

   159         *) extra_config+=("--disable-shared");;

   160     esac

   162     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in

   163         y,) extra_config+=("--with-fp");;

   164         ,y) extra_config+=("--without-fp");;

   165     esac

   167     if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then

   168         extra_config+=("--disable-versioning")

   169     fi

   171     if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then

   172         extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")

   173     fi

   175     case "$(do_libc_add_ons_list ,)" in

   176         "") ;;

   177         *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;

   178     esac

   180     extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"

   182     # Pre-seed the configparms file with values from the config option

   183     printf "${CT_LIBC_GLIBC_CONFIGPARMS}\n" > configparms

   185     cross_cc=$(CT_Which "${CT_TARGET}-gcc")

   187     CT_DoLog DEBUG "Using gcc for target:     '${cross_cc}'"

   188     CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"

   189     CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"

   190     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"

   192     # ./configure is mislead by our tools override wrapper for bash

   193     # so just tell it where the real bash is _on_the_target_!

   194     # Notes:

   195     # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL

   196     # - ${BASH_SHELL}            is only used to set BASH

   197     # - ${BASH}                  is only used to set the shebang

   198     #                            in two scripts to run on the target

   199     # So we can safely bypass bash detection at compile time.

   200     # Should this change in a future eglibc release, we'd better

   201     # directly mangle the generated scripts _after_ they get built,

   202     # or even after they get installed... eglibc is such a sucker...

   203     echo "ac_cv_path_BASH_SHELL=/bin/bash" >config.cache

   205     # Configure with --prefix the way we want it on the target...

   206     # There are a whole lot of settings here.  You'll probably want

   207     # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG

   208     # Compare these options with the ones used when installing the glibc headers above - they're different.

   209     # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"

   210     # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.

   211     # Set BUILD_CC, or we won't be able to build datafiles

   213     BUILD_CC="${CT_BUILD}-gcc"                                      \

   214     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}"  \

   215     CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \

   216     AR=${CT_TARGET}-ar                                              \

   217     RANLIB=${CT_TARGET}-ranlib                                      \

   218     CT_DoExecLog CFG                                                \

   219     "${src_dir}/configure"                                          \

   220         --prefix=/usr                                               \

   221         --build=${CT_BUILD}                                         \

   222         --host=${CT_TARGET}                                         \

   223         --without-cvs                                               \

   224         --disable-profile                                           \

   225         --without-gd                                                \

   226         --cache-file=config.cache                                   \

   227         --with-headers="${CT_HEADERS_DIR}"                          \

   228         "${extra_config[@]}"                                        \

   229         ${CT_LIBC_GLIBC_EXTRA_CONFIG}

   231     # build hacks

   232     case "${CT_ARCH},${CT_ARCH_CPU}" in

   233         powerpc,8??)

   234             # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html

   235             CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"

   236             extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" )

   237             ;;

   238     esac

   240     CT_DoLog EXTRA "Building C library"

   241     CT_DoExecLog ALL make ${JOBSFLAGS}                      \

   242                           "${extra_make_args[@]}"           \

   243                           all

   245     CT_DoLog EXTRA "Installing C library"

   246     CT_DoExecLog ALL make ${JOBSFLAGS}                      \

   247                           "${extra_make_args[@]}"           \

   248                           install_root="${CT_SYSROOT_DIR}"  \

   249                           install

   251     CT_EndStep

   252 }

   254 # This function finishes the C library install

   255 # This is a no-op

   256 do_libc_finish() {

   257     :

   258 }

   260 # Build up the addons list, separated with $1

   261 do_libc_add_ons_list() {

   262     local sep="$1"

   263     local addons_list="$( echo "${CT_LIBC_ADDONS_LIST}"         \

   264                           |sed -r -e "s/[[:space:],]/${sep}/g;" \

   265                         )"

   266     case "${CT_THREADS}" in

   267         none)   ;;

   268         *)      addons_list="${addons_list}${sep}${CT_THREADS}";;

   269     esac

   270     [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"

   271     # Remove duplicate, leading and trailing separators

   272     echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"

   273 }

   275 # Compute up the minimum supported Linux kernel version

   276 do_libc_min_kernel_config() {

   277     local min_kernel_config

   279     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in

   280         *--enable-kernel*) ;;

   281         *)  if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then

   282                 # We can't rely on the kernel version from the configuration,

   283                 # because it might not be available if the user uses pre-installed

   284                 # headers. On the other hand, both method will have the kernel

   285                 # version installed in "usr/include/linux/version.h" in the sys-root.

   286                 # Parse that instead of having two code-paths.

   287                 version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"

   288                 if [ ! -f "${version_code_file}" -o ! -r "${version_code_file}" ]; then

   289                     CT_Abort "Linux version is unavailable in installed headers files"

   290                 fi

   291                 version_code="$( grep -E LINUX_VERSION_CODE "${version_code_file}"  \

   292                                  |cut -d ' ' -f 3                                   \

   293                                )"

   294                 version=$(((version_code>>16)&0xFF))

   295                 patchlevel=$(((version_code>>8)&0xFF))

   296                 sublevel=$((version_code&0xFF))

   297                 min_kernel_config="${version}.${patchlevel}.${sublevel}"

   298             elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then

   299                 # Trim the fourth part of the linux version, keeping only the first three numbers

   300                 min_kernel_config="$( echo "${CT_LIBC_GLIBC_MIN_KERNEL_VERSION}"            \

   301                                       |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;' \

   302                                     )"

   303             fi

   304             echo "--enable-kernel=${min_kernel_config}"

   305             ;;

   306     esac

   307 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Thu Jan 20 00:27:36 2011 +0100 (2011-01-20)
changeset 2277	71803c9f6de0
parent 2276	ac021d186cd6
child 2278	e86826b8621a
permissions	-rw-r--r--