crosstool-ng: scripts/build/cc/gcc.sh@cf598d70f6ea

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

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

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

    18     # put it there ourselves

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

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

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

    22     fi

    23 }

    25 # Extract gcc

    26 do_cc_extract() {

    27     CT_Extract "gcc-${CT_CC_VERSION}"

    28     CT_Patch "gcc-${CT_CC_VERSION}"

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

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

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

    32     fi

    33 }

    35 #------------------------------------------------------------------------------

    36 # Core gcc pass 1

    37 do_cc_core_pass_1() {

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

    39     # with libgcc.

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

    41     # In any other case, do nothing.

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

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

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

    45         *)      ;;

    46     esac

    47 }

    49 # Core gcc pass 2

    50 do_cc_core_pass_2() {

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

    52     # our compiler.

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

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

    55     # also build the target libgcc.

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

    57         y,*)    ;;

    58         ,nptl)

    59             do_cc_core mode=shared build_libgcc=yes

    60             ;;

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

    62                 do_cc_core mode=static build_libgcc=yes

    63             else

    64                 do_cc_core mode=static build_libgcc=no

    65             fi

    66             ;;

    67     esac

    68 }

    70 #------------------------------------------------------------------------------

    71 # Build core gcc

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

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

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

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

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

    77 do_cc_core() {

    78     local mode

    79     local build_libgcc

    80     local core_prefix_dir

    81     local extra_config

    82     local lang_opt

    84     eval $1

    85     eval $2

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

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

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

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

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

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

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

    95     lang_opt=c

    96     case "${mode}" in

    97         static)

    98             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

   100             copy_headers=y

   101             ;;

   102         shared)

   103             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   105             copy_headers=y

   106             ;;

   107         baremetal)

   108             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

   111             copy_headers=n

   112             ;;

   113     esac

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

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

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

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

   119     fi

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

   123     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   124     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   125     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   126     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   127     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   128     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

   132     else

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

   134     fi

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

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

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

   140     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   141     CT_DoExecLog ALL                                \

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

   143         --build=${CT_BUILD}                         \

   144         --host=${CT_HOST}                           \

   145         --target=${CT_TARGET}                       \

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

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

   148         --disable-multilib                          \

   149         ${CC_CORE_SYSROOT_ARG}                      \

   150         ${extra_config}                             \

   151         --disable-nls                               \

   152         --enable-symvers=gnu                        \

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

   154         --enable-target-optspace                    \

   155         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   163         # cross toolchain during the final gcc build.

   164         #

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

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

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

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

   169         #

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

   171         # so we configure then build it.

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

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

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

   175             CT_DoExecLog ALL make configure-libiberty

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

   177             CT_DoExecLog ALL make configure-gcc configure-libcpp

   178             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   179         else

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

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

   182         fi

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

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

   185             CT_DoExecLog ALL make configure-libdecnumber

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

   187         fi

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

   190         # and libgcc.mvars is used instead.

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

   193             libgcc_rule="libgcc.mvars"

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

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

   196         else

   197             libgcc_rule="libgcc.mk"

   198             build_rules="all-gcc"

   199             install_rules="install-gcc"

   200         fi

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

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

   204     else # build_libgcc

   205             build_rules="all-gcc"

   206             install_rules="install-gcc"

   207     fi   # ! build libgcc

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

   210         CT_DoLog EXTRA "Building libiberty"

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

   212     fi

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

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

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

   218     CT_DoExecLog ALL make ${install_rules}

   220     CT_EndStep

   221 }

   223 #------------------------------------------------------------------------------

   224 # Build final gcc

   225 do_cc() {

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

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

   229     CT_DoStep INFO "Installing final compiler"

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

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

   234     CT_DoLog EXTRA "Configuring final compiler"

   236     # Enable selected languages

   237     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

   252     extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"

   253     extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"

   254     extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"

   255     extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"

   256     extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"

   257     extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"

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

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

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

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

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

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

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

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

   266     else

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

   268     fi

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

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

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

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

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

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

   277     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   278     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   279     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   280     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   281     CT_DoExecLog ALL                                \

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

   283         --build=${CT_BUILD}                         \

   284         --host=${CT_HOST}                           \

   285         --target=${CT_TARGET}                       \

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

   287         ${CC_SYSROOT_ARG}                           \

   288         ${extra_config}                             \

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

   290         --disable-nls                               \

   291         --enable-threads=posix                      \

   292         --enable-symvers=gnu                        \

   293         --enable-c99                                \

   294         --enable-long-long                          \

   295         --enable-target-optspace                    \

   296         ${CT_CC_EXTRA_CONFIG}

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

   299         CT_DoLog EXTRA "Building libiberty"

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

   301     fi

   303     CT_DoLog EXTRA "Building final compiler"

   304     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   306     CT_DoLog EXTRA "Installing final compiler"

   307     CT_DoExecLog ALL make install

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

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

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

   313     CT_EndStep

   314 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Jan 06 22:10:17 2009 +0000 (2009-01-06)
changeset 1129	cf598d70f6ea
parent 1126	1ab3d2e08c8b
child 1161	12926229102b
permissions	-rw-r--r--