crosstool-ng: scripts/build/cc/gcc.sh@eb837be50f8f

     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     # Ditto libm on some Fedora boxen

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

   166         core_LDFLAGS='-lstdc++ -lm'

   167     fi

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

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

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

   171     fi

   172     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then

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

   174     fi

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

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

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

   178     fi

   179     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then

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

   181     fi

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

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

   185     fi

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

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

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

   191     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   192     LDFLAGS="${core_LDFLAGS}"                       \

   193     CT_DoExecLog ALL                                \

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

   195         --build=${CT_BUILD}                         \

   196         --host=${CT_HOST}                           \

   197         --target=${CT_TARGET}                       \

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

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

   200         --disable-multilib                          \

   201         --disable-libmudflap                        \

   202         ${CC_CORE_SYSROOT_ARG}                      \

   203         "${extra_config[@]}"                        \

   204         --disable-nls                               \

   205         --enable-symvers=gnu                        \

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

   207         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   215         # cross toolchain during the final gcc build.

   216         #

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

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

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

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

   221         #

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

   223         # so we configure then build it.

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

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

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

   227             CT_DoExecLog ALL make configure-libiberty

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

   229             CT_DoExecLog ALL make configure-gcc configure-libcpp

   230             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   231         else

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

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

   234         fi

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

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

   237             CT_DoExecLog ALL make configure-libdecnumber

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

   239         fi

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

   242         # and libgcc.mvars is used instead.

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

   245             libgcc_rule="libgcc.mvars"

   246             core_targets=( gcc target-libgcc )

   247         else

   248             libgcc_rule="libgcc.mk"

   249             core_targets=( gcc )

   250         fi

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

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

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

   255         # configurations.

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

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

   258                        GCC_FOR_TARGET=${CT_TARGET}-gcc"

   259         else

   260             repair_cc=""

   261         fi

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

   264                               ${repair_cc}

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

   266     else # build_libgcc

   267         core_targets=( gcc )

   268     fi   # ! build libgcc

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

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

   271        ]; then

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

   273     fi

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

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

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

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

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

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

   283     # check whether compiler has an extension

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

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

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

   288     CT_EndStep

   289 }

   291 #------------------------------------------------------------------------------

   292 # Build final gcc

   293 do_cc() {

   294     local -a extra_config

   295     local tmp

   296     local final_LDFLAGS

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

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

   301     CT_DoStep INFO "Installing final compiler"

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

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

   306     CT_DoLog EXTRA "Configuring final compiler"

   308     # Enable selected languages

   309     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   328         fi

   329     done

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

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

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

   334     case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in

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

   336         m)  ;;

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

   338     esac

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

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

   341     else

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

   343     fi

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

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

   346     fi

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

   348         extra_config+=(--enable-libmudflap)

   349     else

   350         extra_config+=(--disable-libmudflap)

   351     fi

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

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

   355         # build script

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

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

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

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

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

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

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

   363         # Ditto libm on some Fedora boxen

   364         final_LDFLAGS='-lstdc++ -lm'

   365     fi

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

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

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

   369     fi

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

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

   372     fi

   373     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then

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

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

   376     fi

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

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

   379     fi

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

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

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

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

   385         fi

   386     else

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

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

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

   390         else

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

   392         fi

   393     fi

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

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

   397     fi

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

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

   400     fi

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

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

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

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

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

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

   409     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   410     LDFLAGS="${final_LDFLAGS}"                      \

   411     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   412     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   413     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   414     CT_DoExecLog ALL                                \

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

   416         --build=${CT_BUILD}                         \

   417         --host=${CT_HOST}                           \

   418         --target=${CT_TARGET}                       \

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

   420         ${CC_SYSROOT_ARG}                           \

   421         "${extra_config[@]}"                        \

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

   423         --disable-nls                               \

   424         --enable-symvers=gnu                        \

   425         --enable-c99                                \

   426         --enable-long-long                          \

   427         ${CT_CC_EXTRA_CONFIG}

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

   430         CT_DoLog EXTRA "Building libiberty"

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

   432     fi

   434     CT_DoLog EXTRA "Building final compiler"

   435     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   437     CT_DoLog EXTRA "Installing final compiler"

   438     CT_DoExecLog ALL make install

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

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

   442     # check whether compiler has an extension

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

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

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

   447     CT_EndStep

   448 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Sep 12 20:54:54 2010 +0200 (2010-09-12)
changeset 2122	eb837be50f8f
parent 2070	bcd33fce4db9
child 2123	ff2181adbd28
permissions	-rw-r--r--