crosstool-ng: scripts/build/cc/gcc.sh@17e37102a037

     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     local version="${CT_CC_VERSION}${CT_CC_GCC_4_4_snapshot_date}"

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

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

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

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

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

    14     # subdirectory! You bastard!

    15     CT_GetFile "gcc-${version}"                                                         \

    16                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${version}}           \

    17                ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${version}   \

    18                ftp://ftp.uvsq.fr/pub/gcc/snapshots/${version}

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

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

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

    23     # put it there ourselves

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

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

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

    27     fi

    28 }

    30 # Extract gcc

    31 do_cc_extract() {

    32     local version="${CT_CC_VERSION}${CT_CC_GCC_4_4_snapshot_date}"

    34     CT_Extract "gcc-${version}"

    35     CT_Patch "gcc-${version}"

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

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

    39          -a ! -f "${CT_SRC_DIR}/gcc-${version}/ecj.jar" \

    40        ]; then

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

    42     fi

    43 }

    45 #------------------------------------------------------------------------------

    46 # Core gcc pass 1

    47 do_cc_core_pass_1() {

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

    49     # with libgcc.

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

    51     # In any other case, do nothing.

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

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

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

    55         *)      ;;

    56     esac

    57 }

    59 # Core gcc pass 2

    60 do_cc_core_pass_2() {

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

    62     # our compiler.

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

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

    65     # also build the target libgcc.

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

    67         y,*)    ;;

    68         ,nptl)

    69             do_cc_core mode=shared build_libgcc=yes

    70             ;;

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

    72                 do_cc_core mode=static build_libgcc=yes

    73             else

    74                 do_cc_core mode=static build_libgcc=no

    75             fi

    76             ;;

    77     esac

    78 }

    80 #------------------------------------------------------------------------------

    81 # Build core gcc

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

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

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

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

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

    87 do_cc_core() {

    88     local mode

    89     local build_libgcc

    90     local core_prefix_dir

    91     local extra_config

    92     local lang_opt

    93     local version="${CT_CC_VERSION}${CT_CC_GCC_4_4_snapshot_date}"

    95     eval $1

    96     eval $2

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

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

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

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

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

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

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

   106     lang_opt=c

   107     case "${mode}" in

   108         static)

   109             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

   111             copy_headers=y

   112             ;;

   113         shared)

   114             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   116             copy_headers=y

   117             ;;

   118         baremetal)

   119             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

   122             copy_headers=n

   123             ;;

   124     esac

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

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

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

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

   130     fi

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

   134     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   135     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   136     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   137     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   138     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   139     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

   143     else

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

   145     fi

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

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

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

   151     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   152     CT_DoExecLog ALL                                \

   153     "${CT_SRC_DIR}/gcc-${version}/configure"        \

   154         --build=${CT_BUILD}                         \

   155         --host=${CT_HOST}                           \

   156         --target=${CT_TARGET}                       \

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

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

   159         --disable-multilib                          \

   160         ${CC_CORE_SYSROOT_ARG}                      \

   161         ${extra_config}                             \

   162         --disable-nls                               \

   163         --enable-symvers=gnu                        \

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

   165         --enable-target-optspace                    \

   166         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   174         # cross toolchain during the final gcc build.

   175         #

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

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

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

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

   180         #

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

   182         # so we configure then build it.

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

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

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

   186             CT_DoExecLog ALL make configure-libiberty

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

   188             CT_DoExecLog ALL make configure-gcc configure-libcpp

   189             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   190         else

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

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

   193         fi

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

   195         if [ -d "${CT_SRC_DIR}/gcc-${version}/libdecnumber" ]; then

   196             CT_DoExecLog ALL make configure-libdecnumber

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

   198         fi

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

   201         # and libgcc.mvars is used instead.

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

   204             libgcc_rule="libgcc.mvars"

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

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

   207         else

   208             libgcc_rule="libgcc.mk"

   209             build_rules="all-gcc"

   210             install_rules="install-gcc"

   211         fi

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

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

   215     else # build_libgcc

   216             build_rules="all-gcc"

   217             install_rules="install-gcc"

   218     fi   # ! build libgcc

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

   221         CT_DoLog EXTRA "Building libiberty"

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

   223     fi

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

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

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

   229     CT_DoExecLog ALL make ${install_rules}

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

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

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

   235     CT_EndStep

   236 }

   238 #------------------------------------------------------------------------------

   239 # Build final gcc

   240 do_cc() {

   241     local version="${CT_CC_VERSION}${CT_CC_GCC_4_4_snapshot_date}"

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

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

   246     CT_DoStep INFO "Installing final compiler"

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

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

   251     CT_DoLog EXTRA "Configuring final compiler"

   253     # Enable selected languages

   254     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

   269     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   270     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   271     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   272     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   273     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   274     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

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

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

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

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

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

   283     else

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

   285     fi

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

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

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

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

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

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

   294     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   295     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   296     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   297     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   298     CT_DoExecLog ALL                                \

   299     "${CT_SRC_DIR}/gcc-${version}/configure"        \

   300         --build=${CT_BUILD}                         \

   301         --host=${CT_HOST}                           \

   302         --target=${CT_TARGET}                       \

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

   304         ${CC_SYSROOT_ARG}                           \

   305         ${extra_config}                             \

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

   307         --disable-nls                               \

   308         --enable-threads=posix                      \

   309         --enable-symvers=gnu                        \

   310         --enable-c99                                \

   311         --enable-long-long                          \

   312         --enable-target-optspace                    \

   313         ${CT_CC_EXTRA_CONFIG}

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

   316         CT_DoLog EXTRA "Building libiberty"

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

   318     fi

   320     CT_DoLog EXTRA "Building final compiler"

   321     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   323     CT_DoLog EXTRA "Installing final compiler"

   324     CT_DoExecLog ALL make install

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

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

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

   330     CT_EndStep

   331 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Thu Mar 26 18:58:13 2009 +0000 (2009-03-26)
changeset 1269	17e37102a037
parent 1268	5594b05bc2d8
child 1389	fbaee258bfea
permissions	-rw-r--r--