crosstool-ng: scripts/build/cc/gcc.sh@6a077c345cfe

     1 # This file adds the function to build the gcc C compiler

     2 # Copyright 2007 Yann E. MORIN

     3 # Licensed under the GPL v2. See COPYING in the root of this package

     5 do_print_filename() {

     6     [ "${CT_CC}" = "gcc" ] || return 0

     7     echo "gcc-${CT_CC_VERSION}"

8 }

    10 # Download gcc

    11 do_cc_get() {

    12     # Ah! gcc folks are kind of 'different': they store the tarballs in

    13     # subdirectories of the same name! That's because gcc is such /crap/ that

    14     # it is such /big/ that it needs being splitted for distribution! Sad. :-(

    15     # Arrgghh! Some of those versions does not follow this convention:

    16     # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a

    17     # subdirectory! You bastard!

    18     CT_GetFile "${CT_CC_FILE}"  \

    19                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/${CT_CC_FILE}}

    20 }

    22 # Extract gcc

    23 do_cc_extract() {

    24     CT_ExtractAndPatch "${CT_CC_FILE}"

    25 }

    27 #------------------------------------------------------------------------------

    28 # Core gcc pass 1

    29 do_cc_core_pass_1() {

    30     # If we're building for bare metal, build the static core gcc,

    31     # with libgcc.

    32     # In case we're not bare metal, and we're NPTL, build the static core gcc.

    33     # In any other case, do nothing.

    34     case "${CT_BARE_METAL},${CT_THREADS}" in

    35         y,*)    do_cc_core mode=baremetal build_libgcc=yes;;

    36         ,nptl)  do_cc_core mode=static build_libgcc=no;;

    37         *)      ;;

    38     esac

    39 }

    41 # Core gcc pass 2

    42 do_cc_core_pass_2() {

    43     # In case we're building for bare metal, do nothing, we already have

    44     # our compiler.

    45     # In case we're NPTL, build the shared core gcc and the target libgcc.

    46     # In any other case, build the static core gcc and, if using gcc-4.3+,

    47     # also build the target libgcc.

    48     case "${CT_BARE_METAL},${CT_THREADS}" in

    49         y,*)    ;;

    50         ,nptl)

    51             do_cc_core mode=shared build_libgcc=yes

    52             ;;

    53         *)  if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then

    54                 do_cc_core mode=static build_libgcc=yes

    55             else

    56                 do_cc_core mode=static build_libgcc=no

    57             fi

    58             ;;

    59     esac

    60 }

    62 #------------------------------------------------------------------------------

    63 # Build core gcc

    64 # This function is used to build both the static and the shared core C conpiler,

    65 # with or without the target libgcc. We need to know wether:

    66 #  - we're building static, shared or bare metal: mode=[static|shared|baremetal]

    67 #  - we need to build libgcc or not             : build_libgcc=[yes|no]

    68 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]

    69 do_cc_core() {

    70     local mode

    71     local build_libgcc

    72     local core_prefix_dir

    73     local extra_config

    74     local lang_opt

    76     eval $1

    77     eval $2

    78     CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"

    79     CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"

    80     # In normal conditions, ( "${mode}" = "shared" ) implies

    81     # ( "${build_libgcc}" = "yes" ), but I won't check for that

    83     CT_DoStep INFO "Installing ${mode} core C compiler"

    84     mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"

    85     cd "${CT_BUILD_DIR}/build-cc-core-${mode}"

    87     lang_opt=c

    88     case "${mode}" in

    89         static)

    90             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

    91             extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"

    92             copy_headers=y

    93             ;;

    94         shared)

    95             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

    96             extra_config="${extra_config} --enable-shared"

    97             copy_headers=y

    98             ;;

    99         baremetal)

   100             core_prefix_dir="${CT_PREFIX_DIR}"

   101             extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"

   102             [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"

   103             copy_headers=n

   104             ;;

   105     esac

   107     if [ "${copy_headers}" = "y" ]; then

   108         CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"

   109         CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"

   110         CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"

   111     fi

   113     CT_DoLog EXTRA "Configuring ${mode} core C compiler"

   115     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   116     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   117     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   118     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   119     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   120     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

   121     [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"

   122     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then

   123         extra_config="${extra_config} --enable-__cxa_atexit"

   124     else

   125         extra_config="${extra_config} --disable-__cxa_atexit"

   126     fi

   128     CT_DoLog DEBUG "Extra config passed: '${extra_config}'"

   130     # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)

   131     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \

   132     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   133     CT_DoExecLog ALL                                \

   134     "${CT_SRC_DIR}/${CT_CC_FILE}/configure"         \

   135         --build=${CT_BUILD}                         \

   136         --host=${CT_HOST}                           \

   137         --target=${CT_TARGET}                       \

   138         --prefix="${core_prefix_dir}"               \

   139         --with-local-prefix="${CT_SYSROOT_DIR}"     \

   140         --disable-multilib                          \

   141         ${CC_CORE_SYSROOT_ARG}                      \

   142         ${extra_config}                             \

   143         --disable-nls                               \

   144         --enable-symvers=gnu                        \

   145         --enable-languages="${lang_opt}"            \

   146         --enable-target-optspace                    \

   147         ${CT_CC_CORE_EXTRA_CONFIG}

   149     if [ "${build_libgcc}" = "yes" ]; then

   150         # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or

   151         # gcc/config/t-libunwind so -lc is removed from the link for

   152         # libgcc_s.so, as we do not have a target -lc yet.

   153         # This is not as ugly as it appears to be ;-) All symbols get resolved

   154         # during the glibc build, and we provide a proper libgcc_s.so for the

   155         # cross toolchain during the final gcc build.

   156         #

   157         # As we cannot modify the source tree, nor override SHLIB_LC itself

   158         # during configure or make, we have to edit the resultant

   159         # gcc/libgcc.mk itself to remove -lc from the link.

   160         # This causes us to have to jump through some hoops...

   161         #

   162         # To produce libgcc.mk to edit we firstly require libiberty.a,

   163         # so we configure then build it.

   164         # Next we have to configure gcc, create libgcc.mk then edit it...

   165         # So much easier if we just edit the source tree, but hey...

   166         if [ ! -f "${CT_SRC_DIR}/${CT_CC_FILE}/gcc/BASE-VER" ]; then

   167             CT_DoExecLog ALL make configure-libiberty

   168             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a

   169             CT_DoExecLog ALL make configure-gcc configure-libcpp

   170             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   171         else

   172             CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty

   173             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty

   174         fi

   175         # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.

   176         if [ -d "${CT_SRC_DIR}/${CT_CC_FILE}/libdecnumber" ]; then

   177             CT_DoExecLog ALL make configure-libdecnumber

   178             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a

   179         fi

   181         # Starting with GCC 4.3, libgcc.mk is no longer built,

   182         # and libgcc.mvars is used instead.

   184         if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then

   185             libgcc_rule="libgcc.mvars"

   186             build_rules="all-gcc all-target-libgcc"

   187             install_rules="install-gcc install-target-libgcc"

   188         else

   189             libgcc_rule="libgcc.mk"

   190             build_rules="all-gcc"

   191             install_rules="install-gcc"

   192         fi

   194         CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}

   195         sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}

   196     else # build_libgcc

   197             build_rules="all-gcc"

   198             install_rules="install-gcc"

   199     fi   # ! build libgcc

   201     if [ "${CT_CANADIAN}" = "y" ]; then

   202         CT_DoLog EXTRA "Building libiberty"

   203         CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty

   204     fi

   206     CT_DoLog EXTRA "Building ${mode} core C compiler"

   207     CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}

   209     CT_DoLog EXTRA "Installing ${mode} core C compiler"

   210     CT_DoExecLog ALL make ${install_rules}

   212     CT_EndStep

   213 }

   215 #------------------------------------------------------------------------------

   216 # Build final gcc

   217 do_cc() {

   218     # If building for bare metal, nothing to be done here, the static core conpiler is enough!

   219     [ "${CT_BARE_METAL}" = "y" ] && return 0

   221     CT_DoStep INFO "Installing final compiler"

   223     mkdir -p "${CT_BUILD_DIR}/build-cc"

   224     cd "${CT_BUILD_DIR}/build-cc"

   226     CT_DoLog EXTRA "Configuring final compiler"

   228     # Enable selected languages

   229     lang_opt="c"

   230     [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"

   231     [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"

   232     [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"

   233     [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"

   234     [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"

   235     [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"

   236     CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"

   237     CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"

   238     CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"

   239     CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"

   240     lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')

   242     extra_config="--enable-languages=${lang_opt}"

   243     extra_config="${extra_config} --disable-multilib"

   244     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   245     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   246     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   247     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   248     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   249     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

   250     [ "${CT_SHARED_LIBS}" = "y" ]                   || extra_config="${extra_config} --disable-shared"

   251     [ "${CT_GMP_MPFR}" = "y" ]                      && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"

   252     [ -n "${CT_CC_PKGVERSION}" ]                    && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"

   253     [ -n "${CT_CC_BUGURL}" ]                        && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"

   254     [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ]        && extra_config="${extra_config} --enable-sjlj-exceptions"

   255     [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ]   && extra_config="${extra_config} --disable-sjlj-exceptions"

   256     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then

   257         extra_config="${extra_config} --enable-__cxa_atexit"

   258     else

   259         extra_config="${extra_config} --disable-__cxa_atexit"

   260     fi

   262     CT_DoLog DEBUG "Extra config passed: '${extra_config}'"

   264     # --enable-symvers=gnu really only needed for sh4 to work around a

   265     # detection problem only matters for gcc-3.2.x and later, I think.

   266     # --disable-nls to work around crash bug on ppc405, but also because

   267     # embedded systems don't really need message catalogs...

   268     CC_FOR_BUILD="${CT_BUILD}-gcc"              \

   269     CFLAGS="${CT_CFLAGS_FOR_HOST}"              \

   270     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"     \

   271     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"   \

   272     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"   \

   273     CT_DoExecLog ALL                            \

   274     "${CT_SRC_DIR}/${CT_CC_FILE}/configure"     \

   275         --build=${CT_BUILD}                     \

   276         --host=${CT_HOST}                       \

   277         --target=${CT_TARGET}                   \

   278         --prefix="${CT_PREFIX_DIR}"             \

   279         ${CC_SYSROOT_ARG}                       \

   280         ${extra_config}                         \

   281         --with-local-prefix="${CT_SYSROOT_DIR}" \

   282         --disable-nls                           \

   283         --enable-threads=posix                  \

   284         --enable-symvers=gnu                    \

   285         --enable-c99                            \

   286         --enable-long-long                      \

   287         --enable-target-optspace                \

   288         ${CT_CC_EXTRA_CONFIG}

   290     if [ "${CT_CANADIAN}" = "y" ]; then

   291         CT_DoLog EXTRA "Building libiberty"

   292         CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty

   293     fi

   295     CT_DoLog EXTRA "Building final compiler"

   296     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   298     CT_DoLog EXTRA "Installing final compiler"

   299     CT_DoExecLog ALL make install

   301     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able

   302     # to call the C compiler with the same, somewhat canonical name.

   303     CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc

   305     CT_EndStep

   306 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sat Jan 03 20:53:19 2009 +0000 (2009-01-03)
changeset 1111	6a077c345cfe
parent 1107	80c00c7d8734
child 1112	c72aecd1a9ef
permissions	-rw-r--r--