crosstool-ng: scripts/build/cc/gcc.sh@51e4597b07fc

     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         ,,win32) do_cc_core mode=static build_libgcc=yes

    72             ;;

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

    74                 do_cc_core mode=static build_libgcc=yes

    75             else

    76                 do_cc_core mode=static

    77             fi

    78             ;;

    79     esac

    80 }

    82 #------------------------------------------------------------------------------

    83 # Build core gcc

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

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

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

    87 #  - we need to build libgcc or not             : build_libgcc=[yes|no]     (default: no)

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

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

    90 do_cc_core() {

    91     local mode

    92     local build_libgcc=no

    93     local build_libstdcxx=no

    94     local core_prefix_dir

    95     local lang_opt

    96     local tmp

    97     local -a extra_config

    98     local core_LDFLAGS

    99     local -a core_targets

   101     while [ $# -ne 0 ]; do

   102         eval "${1}"

   103         shift

   104     done

   106     lang_opt=c

   107     case "${mode}" in

   108         static)

   109             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

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

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

   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         *)

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

   131             ;;

   132     esac

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

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

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

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

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

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

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

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

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

   145     fi

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

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

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

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

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

   153         fi

   154     done

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

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

   157     else

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

   159     fi

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

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

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

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

   165         core_LDFLAGS='-lstdc++'

   166     fi

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

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

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

   170     fi

   171     if [ "${CT_CC_GCC_USE_PPL_CLOOG}" = "y" ]; then

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

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

   174     fi

   175     if [ "${CT_CC_GCC_USE_MPC_LIBELF}" = "y" ]; then

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

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

   178     fi

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

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

   182     fi

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

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

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

   188     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   189     LDFLAGS="${core_LDFLAGS}"                       \

   190     CT_DoExecLog ALL                                \

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

   192         --build=${CT_BUILD}                         \

   193         --host=${CT_HOST}                           \

   194         --target=${CT_TARGET}                       \

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

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

   197         --disable-multilib                          \

   198         --disable-libmudflap                        \

   199         ${CC_CORE_SYSROOT_ARG}                      \

   200         "${extra_config[@]}"                        \

   201         --disable-nls                               \

   202         --enable-symvers=gnu                        \

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

   204         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   212         # cross toolchain during the final gcc build.

   213         #

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

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

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

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

   218         #

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

   220         # so we configure then build it.

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

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

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

   224             CT_DoExecLog ALL make configure-libiberty

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

   226             CT_DoExecLog ALL make configure-gcc configure-libcpp

   227             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   228         else

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

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

   231         fi

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

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

   234             CT_DoExecLog ALL make configure-libdecnumber

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

   236         fi

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

   239         # and libgcc.mvars is used instead.

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

   242             libgcc_rule="libgcc.mvars"

   243             core_targets=( gcc target-libgcc )

   244         else

   245             libgcc_rule="libgcc.mk"

   246             core_targets=( gcc )

   247         fi

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

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

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

   252         # configurations.

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

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

   255                        GCC_FOR_TARGET=${CT_TARGET}-gcc"

   256         else

   257             repair_cc=""

   258         fi

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

   261                               ${repair_cc}

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

   263     else # build_libgcc

   264         core_targets=( gcc )

   265     fi   # ! build libgcc

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

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

   268        ]; then

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

   270     fi

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

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

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

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

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

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

   280     # check whether compiler has an extension

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

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

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

   285     CT_EndStep

   286 }

   288 #------------------------------------------------------------------------------

   289 # Build final gcc

   290 do_cc() {

   291     local -a extra_config

   292     local tmp

   293     local final_LDFLAGS

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

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

   298     CT_DoStep INFO "Installing final compiler"

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

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

   303     CT_DoLog EXTRA "Configuring final compiler"

   305     # Enable selected languages

   306     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   325         fi

   326     done

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

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

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

   331     case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in

   332         y)  extra_config+=("--enable-sjlj-exceptions");;

   333         m)  ;;

   334         "") extra_config+=("--disable-sjlj-exceptions");;

   335     esac

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

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

   338     else

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

   340     fi

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

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

   343     fi

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

   345         extra_config+=(--enable-libmudflap)

   346     else

   347         extra_config+=(--disable-libmudflap)

   348     fi

   350     if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then

   351         # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2

   352         # build script

   353         # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,

   354         # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html

   355         extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")

   356     elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then

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

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

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

   360         final_LDFLAGS='-lstdc++'

   361     fi

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

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

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

   365     fi

   366     if [ "${CT_CC_GCC_USE_PPL_CLOOG}" = "y" ]; then

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

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

   369     fi

   370     if [ "${CT_CC_GCC_USE_MPC_LIBELF}" = "y" ]; then

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

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

   373     fi

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

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

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

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

   379         fi

   380     else

   381         if [ "${CT_THREADS}" = "win32" ]; then

   382             extra_config+=("--enable-threads=win32")

   383             extra_config+=("--disable-win32-registry")

   384         else

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

   386         fi

   387     fi

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

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

   391     fi

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

   393         extra_config+=("--disable-libstdcxx-pch")

   394     fi

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

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

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

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

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

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

   403     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   404     LDFLAGS="${final_LDFLAGS}"                      \

   405     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   406     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   407     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   408     CT_DoExecLog ALL                                \

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

   410         --build=${CT_BUILD}                         \

   411         --host=${CT_HOST}                           \

   412         --target=${CT_TARGET}                       \

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

   414         ${CC_SYSROOT_ARG}                           \

   415         "${extra_config[@]}"                        \

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

   417         --disable-nls                               \

   418         --enable-symvers=gnu                        \

   419         --enable-c99                                \

   420         --enable-long-long                          \

   421         ${CT_CC_EXTRA_CONFIG}

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

   424         CT_DoLog EXTRA "Building libiberty"

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

   426     fi

   428     CT_DoLog EXTRA "Building final compiler"

   429     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   431     CT_DoLog EXTRA "Installing final compiler"

   432     CT_DoExecLog ALL make install

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

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

   436     # check whether compiler has an extension

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

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

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

   441     CT_EndStep

   442 }

author	Remy Bohmer <linux@bohmer.net>
	Thu May 27 23:18:19 2010 +0200 (2010-05-27)
changeset 2060	51e4597b07fc
parent 2043	efb1058baa31
child 2070	bcd33fce4db9
permissions	-rw-r--r--