crosstool-ng: scripts/build/cc/gcc.sh@4a3ef29eadcd

     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=baremetal build_libgcc=yes;;

    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,*,*)   ;;

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

    87 do_cc_core() {

    88     local mode

    89     local build_libgcc=no

    90     local core_prefix_dir

    91     local lang_opt

    92     local tmp

    93     local -a extra_config

    94     local core_LDFLAGS

    96     while [ $# -ne 0 ]; do

    97         eval "${1}"

    98         shift

    99     done

   101     lang_opt=c

   102     case "${mode}" in

   103         static)

   104             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   108             copy_headers=y

   109             ;;

   110         shared)

   111             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   113             copy_headers=y

   114             ;;

   115         baremetal)

   116             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   121             copy_headers=n

   122             ;;

   123         *)

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

   125             ;;

   126     esac

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

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

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

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

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

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

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

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

   138         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"

   139     fi

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

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

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

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

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

   147         fi

   148     done

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

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

   151     else

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

   153     fi

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

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

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

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

   159         core_LDFLAGS='-lstdc++'

   160     fi

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

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

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

   164     fi

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

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

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

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

   169     fi

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

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

   172     fi

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

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

   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         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   205         # cross toolchain during the final gcc build.

   206         #

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

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

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

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

   211         #

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

   213         # so we configure then build it.

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

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

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

   217             CT_DoExecLog ALL make configure-libiberty

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

   219             CT_DoExecLog ALL make configure-gcc configure-libcpp

   220             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   221         else

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

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

   224         fi

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

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

   227             CT_DoExecLog ALL make configure-libdecnumber

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

   229         fi

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

   232         # and libgcc.mvars is used instead.

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

   235             libgcc_rule="libgcc.mvars"

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

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

   238         else

   239             libgcc_rule="libgcc.mk"

   240             build_rules="all-gcc"

   241             install_rules="install-gcc"

   242         fi

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

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

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

   247         # configurations.

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

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

   250                        GCC_FOR_TARGET=${CT_TARGET}-gcc"

   251         else

   252             repair_cc=""

   253         fi

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

   256                               ${repair_cc}

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

   258     else # build_libgcc

   259             build_rules="all-gcc"

   260             install_rules="install-gcc"

   261     fi   # ! build libgcc

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

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

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

   267     CT_DoExecLog ALL make ${install_rules}

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

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

   271     # check whether compiler has an extension

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

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

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

   276     CT_EndStep

   277 }

   279 #------------------------------------------------------------------------------

   280 # Build final gcc

   281 do_cc() {

   282     local -a extra_config

   283     local tmp

   284     local final_LDFLAGS

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

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

   289     CT_DoStep INFO "Installing final compiler"

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

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

   294     CT_DoLog EXTRA "Configuring final compiler"

   296     # Enable selected languages

   297     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   316         fi

   317     done

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

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

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

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

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

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

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

   326     else

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

   328     fi

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

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

   331     fi

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

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

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

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

   337         final_LDFLAGS='-lstdc++'

   338     fi

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

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

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

   342     fi

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

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

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

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

   347     fi

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

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

   350     fi

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

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

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

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

   356         fi

   357     else

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

   359     fi

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

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

   363     fi

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

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

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

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

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

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

   372     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   373     LDFLAGS="${final_LDFLAGS}"                      \

   374     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   375     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   376     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   377     CT_DoExecLog ALL                                \

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

   379         --build=${CT_BUILD}                         \

   380         --host=${CT_HOST}                           \

   381         --target=${CT_TARGET}                       \

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

   383         ${CC_SYSROOT_ARG}                           \

   384         "${extra_config[@]}"                        \

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

   386         --disable-nls                               \

   387         --enable-symvers=gnu                        \

   388         --enable-c99                                \

   389         --enable-long-long                          \

   390         ${CT_CC_EXTRA_CONFIG}

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

   393         CT_DoLog EXTRA "Building libiberty"

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

   395     fi

   397     CT_DoLog EXTRA "Building final compiler"

   398     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   400     CT_DoLog EXTRA "Installing final compiler"

   401     CT_DoExecLog ALL make install

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

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

   405     # check whether compiler has an extension

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

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

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

   410     CT_EndStep

   411 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jun 13 20:31:42 2010 +0200 (2010-06-13)
changeset 1980	4a3ef29eadcd
parent 1979	22ce0c19f06a
child 1981	7130357d712b
permissions	-rw-r--r--