crosstool-ng: scripts/build/cc/gcc.sh@22ce0c19f06a

     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 build_libgcc=no;;

    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 build_libgcc=no

    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]

    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

    90     local core_prefix_dir

    91     local lang_opt

    92     local tmp

    93     local -a extra_config

    94     local core_LDFLAGS

    96     eval $1

    97     eval $2

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

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

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

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

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

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

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

   107     lang_opt=c

   108     case "${mode}" in

   109         static)

   110             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   114             copy_headers=y

   115             ;;

   116         shared)

   117             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   119             copy_headers=y

   120             ;;

   121         baremetal)

   122             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   127             copy_headers=n

   128             ;;

   129     esac

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

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

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

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

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

   137         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${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

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

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

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

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

   158         core_LDFLAGS='-lstdc++'

   159     fi

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

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

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

   163     fi

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

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

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

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

   168     fi

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

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

   171     fi

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

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

   175     fi

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

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

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

   181     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   182     LDFLAGS="${core_LDFLAGS}"                       \

   183     CT_DoExecLog ALL                                \

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

   185         --build=${CT_BUILD}                         \

   186         --host=${CT_HOST}                           \

   187         --target=${CT_TARGET}                       \

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

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

   190         --disable-multilib                          \

   191         ${CC_CORE_SYSROOT_ARG}                      \

   192         "${extra_config[@]}"                        \

   193         --disable-nls                               \

   194         --enable-symvers=gnu                        \

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

   196         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   204         # cross toolchain during the final gcc build.

   205         #

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

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

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

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

   210         #

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

   212         # so we configure then build it.

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

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

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

   216             CT_DoExecLog ALL make configure-libiberty

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

   218             CT_DoExecLog ALL make configure-gcc configure-libcpp

   219             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   220         else

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

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

   223         fi

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

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

   226             CT_DoExecLog ALL make configure-libdecnumber

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

   228         fi

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

   231         # and libgcc.mvars is used instead.

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

   234             libgcc_rule="libgcc.mvars"

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

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

   237         else

   238             libgcc_rule="libgcc.mk"

   239             build_rules="all-gcc"

   240             install_rules="install-gcc"

   241         fi

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

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

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

   246         # configurations.

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

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

   249                        GCC_FOR_TARGET=${CT_TARGET}-gcc"

   250         else

   251             repair_cc=""

   252         fi

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

   255                               ${repair_cc}

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

   257     else # build_libgcc

   258             build_rules="all-gcc"

   259             install_rules="install-gcc"

   260     fi   # ! build libgcc

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

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

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

   266     CT_DoExecLog ALL make ${install_rules}

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

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

   270     # check whether compiler has an extension

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

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

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

   275     CT_EndStep

   276 }

   278 #------------------------------------------------------------------------------

   279 # Build final gcc

   280 do_cc() {

   281     local -a extra_config

   282     local tmp

   283     local final_LDFLAGS

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

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

   288     CT_DoStep INFO "Installing final compiler"

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

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

   293     CT_DoLog EXTRA "Configuring final compiler"

   295     # Enable selected languages

   296     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   315         fi

   316     done

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

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

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

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

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

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

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

   325     else

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

   327     fi

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

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

   330     fi

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

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

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

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

   336         final_LDFLAGS='-lstdc++'

   337     fi

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

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

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

   341     fi

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

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

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

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

   346     fi

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

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

   349     fi

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

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

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

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

   355         fi

   356     else

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

   358     fi

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

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

   362     fi

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

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

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

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

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

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

   371     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   372     LDFLAGS="${final_LDFLAGS}"                      \

   373     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   374     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   375     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   376     CT_DoExecLog ALL                                \

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

   378         --build=${CT_BUILD}                         \

   379         --host=${CT_HOST}                           \

   380         --target=${CT_TARGET}                       \

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

   382         ${CC_SYSROOT_ARG}                           \

   383         "${extra_config[@]}"                        \

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

   385         --disable-nls                               \

   386         --enable-symvers=gnu                        \

   387         --enable-c99                                \

   388         --enable-long-long                          \

   389         ${CT_CC_EXTRA_CONFIG}

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

   392         CT_DoLog EXTRA "Building libiberty"

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

   394     fi

   396     CT_DoLog EXTRA "Building final compiler"

   397     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   399     CT_DoLog EXTRA "Installing final compiler"

   400     CT_DoExecLog ALL make install

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

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

   404     # check whether compiler has an extension

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

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

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

   409     CT_EndStep

   410 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jun 13 20:25:00 2010 +0200 (2010-06-13)
changeset 1979	22ce0c19f06a
parent 1972	7939e7e0573d
child 1980	4a3ef29eadcd
permissions	-rw-r--r--