crosstool-ng: scripts/build/cc/gcc.sh@6df2d4f78948

     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

    98     local core_LDFLAGS

   100     eval $1

   101     eval $2

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

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

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

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

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

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

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

   111     lang_opt=c

   112     case "${mode}" in

   113         static)

   114             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   118             copy_headers=y

   119             ;;

   120         shared)

   121             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   123             copy_headers=y

   124             ;;

   125         baremetal)

   126             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   131             copy_headers=n

   132             ;;

   133     esac

   135     # Bare metal delivers the core compiler as final compiler, so add version info and bugurl

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

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

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

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

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

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

   143     fi

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

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

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

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

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

   151         fi

   152     done

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

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

   155     else

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

   157     fi

   159     # When companion libraries are build static (eg !shared),

   160     # the libstdc++ is not pulled automatically, although it

   161     # is needed. Shoe-horn it in our LDFLAGS

   162     if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then

   163         core_LDFLAGS='-lstdc++'

   164     fi

   165     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then

   166         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")

   167         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")

   168     fi

   169     if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then

   170         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")

   171         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")

   172         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")

   173     fi

   174     if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then

   175         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")

   176     fi

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

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

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

   182     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   183     LDFLAGS="${core_LDFLAGS}"                       \

   184     CT_DoExecLog ALL                                \

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

   186         --build=${CT_BUILD}                         \

   187         --host=${CT_HOST}                           \

   188         --target=${CT_TARGET}                       \

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

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

   191         --disable-multilib                          \

   192         ${CC_CORE_SYSROOT_ARG}                      \

   193         "${extra_config[@]}"                        \

   194         --disable-nls                               \

   195         --enable-symvers=gnu                        \

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

   197         --enable-target-optspace                    \

   198         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   206         # cross toolchain during the final gcc build.

   207         #

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

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

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

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

   212         #

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

   214         # so we configure then build it.

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

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

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

   218             CT_DoExecLog ALL make configure-libiberty

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

   220             CT_DoExecLog ALL make configure-gcc configure-libcpp

   221             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   222         else

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

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

   225         fi

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

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

   228             CT_DoExecLog ALL make configure-libdecnumber

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

   230         fi

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

   233         # and libgcc.mvars is used instead.

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

   236             libgcc_rule="libgcc.mvars"

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

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

   239         else

   240             libgcc_rule="libgcc.mk"

   241             build_rules="all-gcc"

   242             install_rules="install-gcc"

   243         fi

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

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

   247     else # build_libgcc

   248             build_rules="all-gcc"

   249             install_rules="install-gcc"

   250     fi   # ! build libgcc

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

   253         CT_DoLog EXTRA "Building libiberty"

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

   255     fi

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

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

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

   261     CT_DoExecLog ALL make ${install_rules}

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

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

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

   267     CT_EndStep

   268 }

   270 #------------------------------------------------------------------------------

   271 # Build final gcc

   272 do_cc() {

   273     local -a extra_config

   274     local tmp

   275     local final_LDFLAGS

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

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

   280     CT_DoStep INFO "Installing final compiler"

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

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

   285     CT_DoLog EXTRA "Configuring final compiler"

   287     # Enable selected languages

   288     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   307         fi

   308     done

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

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

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

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

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

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

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

   317     else

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

   319     fi

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

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

   322     fi

   324     # When companion libraries are build static (eg !shared),

   325     # the libstdc++ is not pulled automatically, although it

   326     # is needed. Shoe-horn it in our LDFLAGS

   327     if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then

   328         final_LDFLAGS='-lstdc++'

   329     fi

   330     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then

   331         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")

   332         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")

   333     fi

   334     if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then

   335         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")

   336         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")

   337         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")

   338     fi

   339     if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then

   340         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")

   341     fi

   343     if [ "${CT_THREADS}" = "none" ]; then

   344         extra_config+=("--disable-threads")

   345         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then

   346             extra_config+=("--disable-libgomp")

   347         fi

   348     else

   349         extra_config+=("--enable-threads=posix")

   350     fi

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

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

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

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

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

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

   359     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   360     LDFLAGS="${final_LDFLAGS}"                      \

   361     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   362     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   363     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   364     CT_DoExecLog ALL                                \

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

   366         --build=${CT_BUILD}                         \

   367         --host=${CT_HOST}                           \

   368         --target=${CT_TARGET}                       \

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

   370         ${CC_SYSROOT_ARG}                           \

   371         "${extra_config[@]}"                        \

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

   373         --disable-nls                               \

   374         --enable-symvers=gnu                        \

   375         --enable-c99                                \

   376         --enable-long-long                          \

   377         --enable-target-optspace                    \

   378         ${CT_CC_EXTRA_CONFIG}

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

   381         CT_DoLog EXTRA "Building libiberty"

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

   383     fi

   385     CT_DoLog EXTRA "Building final compiler"

   386     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   388     CT_DoLog EXTRA "Installing final compiler"

   389     CT_DoExecLog ALL make install

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

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

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

   395     CT_EndStep

   396 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Thu Apr 15 22:35:18 2010 +0200 (2010-04-15)
changeset 1920	6df2d4f78948
parent 1901	bdb3a98e064b
child 1924	214c64ba8b21
permissions	-rw-r--r--