crosstool-ng: scripts/build/cc/gcc.sh@55f53eb0c33e

     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" ]; then

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

    33     fi

    34 }

    36 #------------------------------------------------------------------------------

    37 # Core gcc pass 1

    38 do_cc_core_pass_1() {

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

    40     # with libgcc.

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

    42     # In any other case, do nothing.

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

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

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

    46         *)      ;;

    47     esac

    48 }

    50 # Core gcc pass 2

    51 do_cc_core_pass_2() {

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

    53     # our compiler.

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

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

    56     # also build the target libgcc.

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

    58         y,*)    ;;

    59         ,nptl)

    60             do_cc_core mode=shared build_libgcc=yes

    61             ;;

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

    63                 do_cc_core mode=static build_libgcc=yes

    64             else

    65                 do_cc_core mode=static build_libgcc=no

    66             fi

    67             ;;

    68     esac

    69 }

    71 #------------------------------------------------------------------------------

    72 # Build core gcc

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

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

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

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

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

    78 do_cc_core() {

    79     local mode

    80     local build_libgcc

    81     local core_prefix_dir

    82     local extra_config

    83     local lang_opt

    85     eval $1

    86     eval $2

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

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

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

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

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

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

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

    96     lang_opt=c

    97     case "${mode}" in

    98         static)

    99             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

   101             copy_headers=y

   102             ;;

   103         shared)

   104             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   106             copy_headers=y

   107             ;;

   108         baremetal)

   109             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

   112             copy_headers=n

   113             ;;

   114     esac

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

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

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

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

   120     fi

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

   124     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   125     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   126     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   127     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   128     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   129     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

   133     else

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

   135     fi

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

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

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

   141     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   142     CT_DoExecLog ALL                                \

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

   144         --build=${CT_BUILD}                         \

   145         --host=${CT_HOST}                           \

   146         --target=${CT_TARGET}                       \

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

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

   149         --disable-multilib                          \

   150         ${CC_CORE_SYSROOT_ARG}                      \

   151         ${extra_config}                             \

   152         --disable-nls                               \

   153         --enable-symvers=gnu                        \

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

   155         --enable-target-optspace                    \

   156         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   164         # cross toolchain during the final gcc build.

   165         #

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

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

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

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

   170         #

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

   172         # so we configure then build it.

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

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

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

   176             CT_DoExecLog ALL make configure-libiberty

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

   178             CT_DoExecLog ALL make configure-gcc configure-libcpp

   179             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   180         else

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

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

   183         fi

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

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

   186             CT_DoExecLog ALL make configure-libdecnumber

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

   188         fi

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

   191         # and libgcc.mvars is used instead.

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

   194             libgcc_rule="libgcc.mvars"

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

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

   197         else

   198             libgcc_rule="libgcc.mk"

   199             build_rules="all-gcc"

   200             install_rules="install-gcc"

   201         fi

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

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

   205     else # build_libgcc

   206             build_rules="all-gcc"

   207             install_rules="install-gcc"

   208     fi   # ! build libgcc

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

   211         CT_DoLog EXTRA "Building libiberty"

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

   213     fi

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

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

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

   219     CT_DoExecLog ALL make ${install_rules}

   221     CT_EndStep

   222 }

   224 #------------------------------------------------------------------------------

   225 # Build final gcc

   226 do_cc() {

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

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

   230     CT_DoStep INFO "Installing final compiler"

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

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

   235     CT_DoLog EXTRA "Configuring final compiler"

   237     # Enable selected languages

   238     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

   253     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   254     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   255     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   256     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   257     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   258     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

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

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

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

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

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

   267     else

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

   269     fi

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

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

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

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

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

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

   278     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   279     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   280     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   281     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   282     CT_DoExecLog ALL                                \

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

   284         --build=${CT_BUILD}                         \

   285         --host=${CT_HOST}                           \

   286         --target=${CT_TARGET}                       \

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

   288         ${CC_SYSROOT_ARG}                           \

   289         ${extra_config}                             \

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

   291         --disable-nls                               \

   292         --enable-threads=posix                      \

   293         --enable-symvers=gnu                        \

   294         --enable-c99                                \

   295         --enable-long-long                          \

   296         --enable-target-optspace                    \

   297         ${CT_CC_EXTRA_CONFIG}

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

   300         CT_DoLog EXTRA "Building libiberty"

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

   302     fi

   304     CT_DoLog EXTRA "Building final compiler"

   305     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   307     CT_DoLog EXTRA "Installing final compiler"

   308     CT_DoExecLog ALL make install

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

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

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

   314     CT_EndStep

   315 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Wed Jan 28 22:36:44 2009 +0000 (2009-01-28)
changeset 1172	55f53eb0c33e
parent 1161	12926229102b
child 1259	9a567f354599
permissions	-rw-r--r--