crosstool-ng: scripts/build/cc/gcc.sh@198a5a6e5239

     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 for bare metal, build the static core gcc,

    45     # with libgcc.

    46     # In case we're not bare metal and building a canadian compiler, do nothing

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

    48     # In any other case, do nothing.

    49     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in

    50         y,*,*)  do_cc_core mode=static;;

    51         ,y,*)   ;;

    52         ,,nptl) do_cc_core mode=static;;

    53         *)      ;;

    54     esac

    55 }

    57 # Core gcc pass 2

    58 do_cc_core_pass_2() {

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

    60     # our compiler.

    61     # In case we're not bare metal and building a canadian compiler, do nothing

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

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

    64     # also build the target libgcc.

    65     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in

    66         y,*,*)  do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;

    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

    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]     (default: no)

    86 #  - we need to build libstdc++ or not          : build_libstdcxx=[yes|no]  (default: no)

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

    88 do_cc_core() {

    89     local mode

    90     local build_libgcc=no

    91     local build_libstdcxx=no

    92     local core_prefix_dir

    93     local lang_opt

    94     local tmp

    95     local -a extra_config

    96     local core_LDFLAGS

    97     local -a core_targets

    99     while [ $# -ne 0 ]; do

   100         eval "${1}"

   101         shift

   102     done

   104     lang_opt=c

   105     case "${mode}" in

   106         static)

   107             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   111             copy_headers=y  # For baremetal, as there's no headers to copy,

   112                             # we copy an empty directory. So, who cares?

   113             ;;

   114         shared)

   115             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   117             copy_headers=y

   118             ;;

   119         baremetal)

   120             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   125             copy_headers=n

   126             ;;

   127         *)

   128             CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"

   129             ;;

   130     esac

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

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

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

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

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

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

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

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

   142         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${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     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then

   179         extra_config+=("--enable-target-optspace")

   180     fi

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

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

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

   186     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   187     LDFLAGS="${core_LDFLAGS}"                       \

   188     CT_DoExecLog ALL                                \

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

   190         --build=${CT_BUILD}                         \

   191         --host=${CT_HOST}                           \

   192         --target=${CT_TARGET}                       \

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

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

   195         --disable-multilib                          \

   196         ${CC_CORE_SYSROOT_ARG}                      \

   197         "${extra_config[@]}"                        \

   198         --disable-nls                               \

   199         --enable-symvers=gnu                        \

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

   201         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   209         # cross toolchain during the final gcc build.

   210         #

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

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

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

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

   215         #

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

   217         # so we configure then build it.

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

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

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

   221             CT_DoExecLog ALL make configure-libiberty

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

   223             CT_DoExecLog ALL make configure-gcc configure-libcpp

   224             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   225         else

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

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

   228         fi

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

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

   231             CT_DoExecLog ALL make configure-libdecnumber

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

   233         fi

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

   236         # and libgcc.mvars is used instead.

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

   239             libgcc_rule="libgcc.mvars"

   240             core_targets=( gcc target-libgcc )

   241         else

   242             libgcc_rule="libgcc.mk"

   243             core_targets=( gcc )

   244         fi

   246         # On bare metal and canadian build the host-compiler is used when

   247         # actually the build-system compiler is required. Choose the correct

   248         # compilers for canadian build and use the defaults on other

   249         # configurations.

   250         if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then

   251             repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \

   252                        GCC_FOR_TARGET=${CT_TARGET}-gcc"

   253         else

   254             repair_cc=""

   255         fi

   257         CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \

   258                               ${repair_cc}

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

   260     else # build_libgcc

   261         core_targets=( gcc )

   262     fi   # ! build libgcc

   263     if [    "${build_libstdcxx}" = "yes"    \

   264          -a "${CT_CC_LANG_CXX}"  = "y"      \

   265        ]; then

   266         core_targets+=( target-libstdc++-v3 )

   267     fi

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

   270     CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"

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

   273     CT_DoExecLog ALL make "${core_targets[@]/#/install-}"

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

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

   277     # check whether compiler has an extension

   278     file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"

   279     [ -z "${file}" ] || ext=".${file##*.}"

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

   282     CT_EndStep

   283 }

   285 #------------------------------------------------------------------------------

   286 # Build final gcc

   287 do_cc() {

   288     local -a extra_config

   289     local tmp

   290     local final_LDFLAGS

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

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

   295     CT_DoStep INFO "Installing final compiler"

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

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

   300     CT_DoLog EXTRA "Configuring final compiler"

   302     # Enable selected languages

   303     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   322         fi

   323     done

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

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

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

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

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

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

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

   332     else

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

   334     fi

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

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

   337     fi

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

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

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

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

   343         final_LDFLAGS='-lstdc++'

   344     fi

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

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

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

   348     fi

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

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

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

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

   353     fi

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

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

   356     fi

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

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

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

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

   362         fi

   363     else

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

   365     fi

   367     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then

   368         extra_config+=("--enable-target-optspace")

   369     fi

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

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

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

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

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

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

   378     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   379     LDFLAGS="${final_LDFLAGS}"                      \

   380     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   381     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   382     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   383     CT_DoExecLog ALL                                \

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

   385         --build=${CT_BUILD}                         \

   386         --host=${CT_HOST}                           \

   387         --target=${CT_TARGET}                       \

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

   389         ${CC_SYSROOT_ARG}                           \

   390         "${extra_config[@]}"                        \

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

   392         --disable-nls                               \

   393         --enable-symvers=gnu                        \

   394         --enable-c99                                \

   395         --enable-long-long                          \

   396         ${CT_CC_EXTRA_CONFIG}

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

   399         CT_DoLog EXTRA "Building libiberty"

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

   401     fi

   403     CT_DoLog EXTRA "Building final compiler"

   404     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   406     CT_DoLog EXTRA "Installing final compiler"

   407     CT_DoExecLog ALL make install

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

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

   411     # check whether compiler has an extension

   412     file="$( ls -1 "${CT_TARGET}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"

   413     [ -z "${file}" ] || ext=".${file##*.}"

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

   416     CT_EndStep

   417 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jun 13 23:38:37 2010 +0200 (2010-06-13)
changeset 1983	198a5a6e5239
parent 1981	7130357d712b
child 1991	1974075aa641
permissions	-rw-r--r--