crosstool-ng: scripts/build/cc/gcc.sh@877d3d97f806

     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 # Download gcc

     6 do_cc_get() {

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

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

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

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

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

    12     # subdirectory! You bastard!

    13     CT_GetFile "gcc-${CT_CC_VERSION}"   \

    14                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}}     \

    15                ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION}

    16     # Starting with GCC 4.3, ecj is used for Java, and will only be

    17     # built if the configure script finds ecj.jar at the top of the

    18     # GCC source tree, which will not be there unless we get it and

    19     # put it there ourselves

    20     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then

    21         CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java   \

    22                                    ftp://sourceware.org/pub/java

    23     fi

    24 }

    26 # Extract gcc

    27 do_cc_extract() {

    28     CT_Extract "gcc-${CT_CC_VERSION}"

    29     CT_Patch "gcc-${CT_CC_VERSION}"

    30     # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree

    31     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y"                     \

    32          -a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"   \

    33        ]; then

    34         CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"

    35     fi

    36 }

    38 #------------------------------------------------------------------------------

    39 # Core gcc pass 1

    40 do_cc_core_pass_1() {

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

    42     # with libgcc.

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

    44     # In any other case, do nothing.

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

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

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

    48         *)      ;;

    49     esac

    50 }

    52 # Core gcc pass 2

    53 do_cc_core_pass_2() {

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

    55     # our compiler.

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

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

    58     # also build the target libgcc.

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

    60         y,*)    ;;

    61         ,nptl)

    62             do_cc_core mode=shared build_libgcc=yes

    63             ;;

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

    65                 do_cc_core mode=static build_libgcc=yes

    66             else

    67                 do_cc_core mode=static build_libgcc=no

    68             fi

    69             ;;

    70     esac

    71 }

    73 #------------------------------------------------------------------------------

    74 # Build core gcc

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

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

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

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

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

    80 do_cc_core() {

    81     local mode

    82     local build_libgcc

    83     local core_prefix_dir

    84     local extra_config

    85     local lang_opt

    87     eval $1

    88     eval $2

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

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

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

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

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

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

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

    98     lang_opt=c

    99     case "${mode}" in

   100         static)

   101             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

   103             copy_headers=y

   104             ;;

   105         shared)

   106             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   108             copy_headers=y

   109             ;;

   110         baremetal)

   111             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

   114             copy_headers=n

   115             ;;

   116     esac

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

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

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

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

   122     fi

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

   126     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   127     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   128     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   129     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   130     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   131     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

   135     else

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

   137     fi

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

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

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

   143     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   144     CT_DoExecLog ALL                                \

   145     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \

   146         --build=${CT_BUILD}                         \

   147         --host=${CT_HOST}                           \

   148         --target=${CT_TARGET}                       \

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

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

   151         --disable-multilib                          \

   152         ${CC_CORE_SYSROOT_ARG}                      \

   153         ${extra_config}                             \

   154         --disable-nls                               \

   155         --enable-symvers=gnu                        \

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

   157         --enable-target-optspace                    \

   158         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   166         # cross toolchain during the final gcc build.

   167         #

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

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

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

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

   172         #

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

   174         # so we configure then build it.

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

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

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

   178             CT_DoExecLog ALL make configure-libiberty

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

   180             CT_DoExecLog ALL make configure-gcc configure-libcpp

   181             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   182         else

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

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

   185         fi

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

   187         if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then

   188             CT_DoExecLog ALL make configure-libdecnumber

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

   190         fi

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

   193         # and libgcc.mvars is used instead.

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

   196             libgcc_rule="libgcc.mvars"

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

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

   199         else

   200             libgcc_rule="libgcc.mk"

   201             build_rules="all-gcc"

   202             install_rules="install-gcc"

   203         fi

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

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

   207     else # build_libgcc

   208             build_rules="all-gcc"

   209             install_rules="install-gcc"

   210     fi   # ! build libgcc

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

   213         CT_DoLog EXTRA "Building libiberty"

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

   215     fi

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

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

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

   221     CT_DoExecLog ALL make ${install_rules}

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

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

   225     CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${core_prefix_dir}/bin/${CT_TARGET}"-cc

   227     CT_EndStep

   228 }

   230 #------------------------------------------------------------------------------

   231 # Build final gcc

   232 do_cc() {

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

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

   236     CT_DoStep INFO "Installing final compiler"

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

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

   241     CT_DoLog EXTRA "Configuring final compiler"

   243     # Enable selected languages

   244     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

   259     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   260     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   261     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   262     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   263     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   264     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

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

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

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

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

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

   273     else

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

   275     fi

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

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

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

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

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

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

   284     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   285     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   286     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   287     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   288     CT_DoExecLog ALL                                \

   289     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \

   290         --build=${CT_BUILD}                         \

   291         --host=${CT_HOST}                           \

   292         --target=${CT_TARGET}                       \

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

   294         ${CC_SYSROOT_ARG}                           \

   295         ${extra_config}                             \

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

   297         --disable-nls                               \

   298         --enable-threads=posix                      \

   299         --enable-symvers=gnu                        \

   300         --enable-c99                                \

   301         --enable-long-long                          \

   302         --enable-target-optspace                    \

   303         ${CT_CC_EXTRA_CONFIG}

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

   306         CT_DoLog EXTRA "Building libiberty"

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

   308     fi

   310     CT_DoLog EXTRA "Building final compiler"

   311     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   313     CT_DoLog EXTRA "Installing final compiler"

   314     CT_DoExecLog ALL make install

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

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

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

   320     CT_EndStep

   321 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Mar 22 22:46:35 2009 +0000 (2009-03-22)
branch	newlib
changeset 1359	877d3d97f806
parent 1259	9a567f354599
child 1365	c4d124ed9f8e
permissions	-rw-r--r--