crosstool-ng: scripts/build/cc/gcc.sh@af092b4bf65c

     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 a canadian compiler no use to build the CC

    45     # core compiler, we're not using it

    46     [ -n "${CT_CANADIAN}" ] && return 0

    48     # If we're building for bare metal, build the static core gcc,

    49     # with libgcc.

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

    51     # In any other case, do nothing.

    52     case "${CT_BARE_METAL},${CT_THREADS}" in

    53         y,*)    do_cc_core mode=baremetal build_libgcc=yes;;

    54         ,nptl)  do_cc_core mode=static build_libgcc=no;;

    55         *)      ;;

    56     esac

    57 }

    59 # Core gcc pass 2

    60 do_cc_core_pass_2() {

    61     # If we're building a canadian compiler no use to build the CC

    62     # core compiler, we're not using it

    63     [ -n "${CT_CANADIAN}" ] && return 0

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

    66     # our compiler.

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

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

    69     # also build the target libgcc.

    70     case "${CT_BARE_METAL},${CT_THREADS}" in

    71         y,*)    ;;

    72         ,nptl)

    73             do_cc_core mode=shared build_libgcc=yes

    74             ;;

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

    76                 do_cc_core mode=static build_libgcc=yes

    77             else

    78                 do_cc_core mode=static build_libgcc=no

    79             fi

    80             ;;

    81     esac

    82 }

    84 #------------------------------------------------------------------------------

    85 # Build core gcc

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

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

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

    89 #  - we need to build libgcc or not             : build_libgcc=[yes|no]

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

    91 do_cc_core() {

    92     local mode

    93     local build_libgcc

    94     local core_prefix_dir

    95     local lang_opt

    96     local tmp

    97     local -a extra_config

    98     local core_LDFLAGS

   100     eval $1

   101     eval $2

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

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

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

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

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

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

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

   111     lang_opt=c

   112     case "${mode}" in

   113         static)

   114             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   118             copy_headers=y

   119             ;;

   120         shared)

   121             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   123             copy_headers=y

   124             ;;

   125         baremetal)

   126             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   131             copy_headers=n

   132             ;;

   133     esac

   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 mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"

   138         CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${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

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

   155         extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   156         extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   157     fi

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

   159         extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   160         extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   161         extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

   162     fi

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

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

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

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

   169     if [ -z "${CT_COMPLIBS_SHARED}" ]; then

   170         core_LDFLAGS='-lstdc++'

   171     fi

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

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

   175     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   176     LDFLAGS="${core_LDFLAGS}"                       \

   177     CT_DoExecLog ALL                                \

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

   179         --build=${CT_BUILD}                         \

   180         --host=${CT_HOST}                           \

   181         --target=${CT_TARGET}                       \

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

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

   184         --disable-multilib                          \

   185         ${CC_CORE_SYSROOT_ARG}                      \

   186         "${extra_config[@]}"                        \

   187         --disable-nls                               \

   188         --enable-symvers=gnu                        \

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

   190         --enable-target-optspace                    \

   191         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   199         # cross toolchain during the final gcc build.

   200         #

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

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

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

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

   205         #

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

   207         # so we configure then build it.

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

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

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

   211             CT_DoExecLog ALL make configure-libiberty

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

   213             CT_DoExecLog ALL make configure-gcc configure-libcpp

   214             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   215         else

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

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

   218         fi

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

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

   221             CT_DoExecLog ALL make configure-libdecnumber

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

   223         fi

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

   226         # and libgcc.mvars is used instead.

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

   229             libgcc_rule="libgcc.mvars"

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

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

   232         else

   233             libgcc_rule="libgcc.mk"

   234             build_rules="all-gcc"

   235             install_rules="install-gcc"

   236         fi

   238         CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}

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

   240     else # build_libgcc

   241             build_rules="all-gcc"

   242             install_rules="install-gcc"

   243     fi   # ! build libgcc

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

   246         CT_DoLog EXTRA "Building libiberty"

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

   248     fi

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

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

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

   254     CT_DoExecLog ALL make ${install_rules}

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

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

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

   260     CT_EndStep

   261 }

   263 #------------------------------------------------------------------------------

   264 # Build final gcc

   265 do_cc() {

   266     local -a extra_config

   267     local tmp

   268     local final_LDFLAGS

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

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

   273     CT_DoStep INFO "Installing final compiler"

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

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

   278     CT_DoLog EXTRA "Configuring final compiler"

   280     # Enable selected languages

   281     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   300         fi

   301     done

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

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

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

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

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

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

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

   310     else

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

   312     fi

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

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

   315     fi

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

   317         extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   318         extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   319     fi

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

   321         extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   322         extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   323         extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

   324     fi

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

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

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

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

   330         fi

   331     else

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

   333     fi

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

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

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

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

   340     if [ -z "${CT_COMPLIBS_SHARED}" ]; then

   341         final_LDFLAGS='-lstdc++'

   342     fi

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

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

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

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

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

   349     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   350     LDFLAGS="${final_LDFLAGS}"                      \

   351     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   352     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   353     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   354     CT_DoExecLog ALL                                \

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

   356         --build=${CT_BUILD}                         \

   357         --host=${CT_HOST}                           \

   358         --target=${CT_TARGET}                       \

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

   360         ${CC_SYSROOT_ARG}                           \

   361         "${extra_config[@]}"                        \

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

   363         --disable-nls                               \

   364         --enable-symvers=gnu                        \

   365         --enable-c99                                \

   366         --enable-long-long                          \

   367         --enable-target-optspace                    \

   368         ${CT_CC_EXTRA_CONFIG}

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

   371         CT_DoLog EXTRA "Building libiberty"

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

   373     fi

   375     CT_DoLog EXTRA "Building final compiler"

   376     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   378     CT_DoLog EXTRA "Installing final compiler"

   379     CT_DoExecLog ALL make install

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

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

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

   385     CT_EndStep

   386 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Apr 11 00:47:23 2010 +0200 (2010-04-11)
changeset 1892	af092b4bf65c
parent 1891	2f0de10c058d
child 1893	f5dab3c43abf
permissions	-rw-r--r--