crosstool-ng: scripts/build/cc/gcc.sh@2542421e3321

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

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

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

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

    21     # put it there ourselves

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

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

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

    25     fi

    26 }

    28 # Extract gcc

    29 do_cc_extract() {

    30     CT_Extract "gcc-${CT_CC_VERSION}"

    31     CT_Patch "gcc-${CT_CC_VERSION}"

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

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

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

    36        ]; then

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

    38     fi

    39 }

    41 #------------------------------------------------------------------------------

    42 # Core gcc pass 1

    43 do_cc_core_pass_1() {

    44     # If we're building a canadian compiler no use to build the CC

    45     # core compiler, we're not using it

    46     [ -n "${CT_CANADIAN}" ] && return 0

    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     # If we're building a canadian compiler no use to build the CC

    62     # core compiler, we're not using it

    63     [ -n "${CT_CANADIAN}" ] && return 0

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

    66     # our compiler.

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

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

    69     # also build the target libgcc.

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

    71         y,*)    ;;

    72         ,nptl)

    73             do_cc_core mode=shared build_libgcc=yes

    74             ;;

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

    76                 do_cc_core mode=static build_libgcc=yes

    77             else

    78                 do_cc_core mode=static build_libgcc=no

    79             fi

    80             ;;

    81     esac

    82 }

    84 #------------------------------------------------------------------------------

    85 # Build core gcc

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

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

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

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

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

    91 do_cc_core() {

    92     local mode

    93     local build_libgcc

    94     local core_prefix_dir

    95     local lang_opt

    96     local tmp

    97     local -a extra_config

    99     eval $1

   100     eval $2

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

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

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

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

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

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

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

   110     lang_opt=c

   111     case "${mode}" in

   112         static)

   113             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

   114             extra_config+=("--with-newlib")

   115             extra_config+=("--enable-threads=no")

   116             extra_config+=("--disable-shared")

   117             copy_headers=y

   118             ;;

   119         shared)

   120             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

   121             extra_config+=("--enable-shared")

   122             copy_headers=y

   123             ;;

   124         baremetal)

   125             core_prefix_dir="${CT_PREFIX_DIR}"

   126             extra_config+=("--with-newlib")

   127             extra_config+=("--enable-threads=no")

   128             extra_config+=("--disable-shared")

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

   130             copy_headers=n

   131             ;;

   132     esac

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

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

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

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

   138     fi

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

   142     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do

   143         eval tmp="\${CT_ARCH_WITH_${tmp}}"

   144         if [ -n "${tmp}" ]; then

   145             extra_config+=("${tmp}")

   146         fi

   147     done

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

   149         extra_config+=("--enable-__cxa_atexit")

   150     else

   151         extra_config+=("--disable-__cxa_atexit")

   152     fi

   153     if [ "${CT_GMP_MPFR}" = "y" ]; then

   154         extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   155         extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   156     fi

   157     if [ "${CT_PPL_CLOOG_MPC}" = "y" ]; then

   158         extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   159         extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   160         extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

   161     fi

   163     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"

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

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

   167     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   168     CT_DoExecLog ALL                                \

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

   170         --build=${CT_BUILD}                         \

   171         --host=${CT_HOST}                           \

   172         --target=${CT_TARGET}                       \

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

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

   175         --disable-multilib                          \

   176         ${CC_CORE_SYSROOT_ARG}                      \

   177         "${extra_config[@]}"                        \

   178         --disable-nls                               \

   179         --enable-symvers=gnu                        \

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

   181         --enable-target-optspace                    \

   182         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   190         # cross toolchain during the final gcc build.

   191         #

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

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

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

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

   196         #

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

   198         # so we configure then build it.

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

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

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

   202             CT_DoExecLog ALL make configure-libiberty

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

   204             CT_DoExecLog ALL make configure-gcc configure-libcpp

   205             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   206         else

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

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

   209         fi

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

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

   212             CT_DoExecLog ALL make configure-libdecnumber

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

   214         fi

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

   217         # and libgcc.mvars is used instead.

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

   220             libgcc_rule="libgcc.mvars"

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

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

   223         else

   224             libgcc_rule="libgcc.mk"

   225             build_rules="all-gcc"

   226             install_rules="install-gcc"

   227         fi

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

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

   231     else # build_libgcc

   232             build_rules="all-gcc"

   233             install_rules="install-gcc"

   234     fi   # ! build libgcc

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

   237         CT_DoLog EXTRA "Building libiberty"

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

   239     fi

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

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

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

   245     CT_DoExecLog ALL make ${install_rules}

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

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

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

   251     CT_EndStep

   252 }

   254 #------------------------------------------------------------------------------

   255 # Build final gcc

   256 do_cc() {

   257     local -a extra_config

   258     local tmp

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

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

   263     CT_DoStep INFO "Installing final compiler"

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

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

   268     CT_DoLog EXTRA "Configuring final compiler"

   270     # Enable selected languages

   271     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

   284     extra_config+=("--enable-languages=${lang_opt}")

   285     extra_config+=("--disable-multilib")

   286     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do

   287         eval tmp="\${CT_ARCH_WITH_${tmp}}"

   288         if [ -n "${tmp}" ]; then

   289             extra_config+=("${tmp}")

   290         fi

   291     done

   293     [ "${CT_SHARED_LIBS}" = "y" ]                   || extra_config+=("--disable-shared")

   294     [ -n "${CT_CC_PKGVERSION}" ]                    && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")

   295     [ -n "${CT_CC_BUGURL}" ]                        && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")

   296     [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ]        && extra_config+=("--enable-sjlj-exceptions")

   297     [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ]   && extra_config+=("--disable-sjlj-exceptions")

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

   299         extra_config+=("--enable-__cxa_atexit")

   300     else

   301         extra_config+=("--disable-__cxa_atexit")

   302     fi

   303     if [ "${CT_GMP_MPFR}" = "y" ]; then

   304         extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   305         extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   306     fi

   307     if [ "${CT_PPL_CLOOG_MPC}" = "y" ]; then

   308         extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   309         extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   310         extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

   311     fi

   312     if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then

   313         extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")

   314     fi

   316     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"

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

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

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

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

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

   323     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   324     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   325     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   326     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   327     CT_DoExecLog ALL                                \

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

   329         --build=${CT_BUILD}                         \

   330         --host=${CT_HOST}                           \

   331         --target=${CT_TARGET}                       \

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

   333         ${CC_SYSROOT_ARG}                           \

   334         "${extra_config[@]}"                        \

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

   336         --disable-nls                               \

   337         --enable-threads=posix                      \

   338         --enable-symvers=gnu                        \

   339         --enable-c99                                \

   340         --enable-long-long                          \

   341         --enable-target-optspace                    \

   342         ${CT_CC_EXTRA_CONFIG}

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

   345         CT_DoLog EXTRA "Building libiberty"

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

   347     fi

   349     CT_DoLog EXTRA "Building final compiler"

   350     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   352     CT_DoLog EXTRA "Installing final compiler"

   353     CT_DoExecLog ALL make install

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

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

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

   359     CT_EndStep

   360 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Aug 30 00:57:40 2009 +0200 (2009-08-30)
changeset 1495	2542421e3321
parent 1479	70a68892831e
child 1808	a1370757e6a1
child 1931	875abab986ac
permissions	-rw-r--r--