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scripts/build/companion_libs/libelf.sh
author Johannes Stezenbach <js@sig21.net>
Thu Jul 29 19:47:16 2010 +0200 (2010-07-29)
changeset 2045 fdaa6c7f6dea
parent 1917 7a489a7b5d55
child 2154 250cdcc86441
permissions -rw-r--r--
cc/gcc: add option to compile against static libstdc++, for gcc-4.4 and newer

Idea and know-how taken from CodeSourcery build script.

Normal build:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb77f3000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb76e8000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb75a1000)
libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb757a000)
/lib/ld-linux.so.2 (0xb77f4000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb755c000)

CC_STATIC_LIBSTDCXX=y:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb7843000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb76e6000)
/lib/ld-linux.so.2 (0xb7844000)

I made CC_STATIC_LIBSTDCXX default=y since I think
it is always desirable.

Signed-off-by: Johannes Stezenbach <js@sig21.net> 
     1 # Build script for libelf

     2 

     3 do_libelf_get() { :; }

     4 do_libelf_extract() { :; }

     5 do_libelf() { :; }

     6 do_libelf_target() { :; }

     7 

     8 if [ "${CT_LIBELF}" = "y" -o "${CT_LIBELF_TARGET}" = "y" ]; then

     9 

    10 do_libelf_get() {

    11     # The server hosting libelf will return an "HTTP 300 : Multiple Choices"

    12     # error code if we try to download a file that does not exists there.

    13     # So we have to request the file with an explicit extension.

    14     CT_GetFile "libelf-${CT_LIBELF_VERSION}" .tar.gz http://www.mr511.de/software/

    15 }

    16 

    17 do_libelf_extract() {

    18     CT_Extract "libelf-${CT_LIBELF_VERSION}"

    19     CT_Patch "libelf" "${CT_LIBELF_VERSION}"

    20 }

    21 

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

    23 

    24 do_libelf() {

    25     local -a libelf_opts

    26 

    27     CT_DoStep INFO "Installing libelf"

    28     mkdir -p "${CT_BUILD_DIR}/build-libelf"

    29     CT_Pushd "${CT_BUILD_DIR}/build-libelf"

    30 

    31     CT_DoLog EXTRA "Configuring libelf"

    32 

    33     if [ "${CT_COMPLIBS_SHARED}" = "y" ]; then

    34         libelf_opts+=( --enable-shared --disable-static )

    35     else

    36         libelf_opts+=( --disable-shared --enable-static )

    37     fi

    38 

    39     CT_DoExecLog ALL                                        \

    40     "${CT_SRC_DIR}/libelf-${CT_LIBELF_VERSION}/configure"   \

    41         --build=${CT_BUILD}                                 \

    42         --host=${CT_HOST}                                   \

    43         --target=${CT_TARGET}                               \

    44         --prefix="${CT_COMPLIBS_DIR}"                       \

    45         --enable-compat                                     \

    46         --enable-elf64                                      \

    47         --enable-extended-format                            \

    48         "${libelf_opts[@]}"

    49 

    50     CT_DoLog EXTRA "Building libelf"

    51     CT_DoExecLog ALL make

    52 

    53     CT_DoLog EXTRA "Installing libelf"

    54     CT_DoExecLog ALL make install

    55 

    56     CT_Popd

    57     CT_EndStep

    58 }

    59 

    60 fi # CT_LIBELF

    61 

    62 if [ "${CT_LIBELF_TARGET}" = "y" ]; then

    63 

    64 do_libelf_target() {

    65     CT_DoStep INFO "Installing libelf for the target"

    66     mkdir -p "${CT_BUILD_DIR}/build-libelf-for-target"

    67     CT_Pushd "${CT_BUILD_DIR}/build-libelf-for-target"

    68 

    69     CT_DoLog EXTRA "Configuring libelf"

    70     CC="${CT_TARGET}-gcc"                                   \

    71     CT_DoExecLog ALL                                        \

    72     "${CT_SRC_DIR}/libelf-${CT_LIBELF_VERSION}/configure"   \

    73         --build=${CT_BUILD}                                 \

    74         --host=${CT_TARGET}                                 \

    75         --target=${CT_TARGET}                               \

    76         --prefix=/usr                                       \

    77         --enable-compat                                     \

    78         --enable-elf64                                      \

    79         --enable-shared                                     \

    80         --enable-extended-format                            \

    81         --enable-static

    82 

    83     CT_DoLog EXTRA "Building libelf"

    84     CT_DoExecLog ALL make

    85 

    86     CT_DoLog EXTRA "Installing libelf"

    87     CT_DoExecLog ALL make instroot="${CT_SYSROOT_DIR}" install

    88 

    89     CT_Popd

    90     CT_EndStep

    91 }

    92 

    93 fi # CT_LIBELF_TARGET

    94 

    95 fi # CT_LIBELF || CT_LIBELF_TARGET
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