crosstool-ng: scripts/build/cc/gcc.sh@e44f67656c5f

     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

    99     eval $1

   100     eval $2

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

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

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

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

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

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

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

   110     lang_opt=c

   111     case "${mode}" in

   112         static)

   113             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"

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

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

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

   117             copy_headers=y

   118             ;;

   119         shared)

   120             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"

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

   122             copy_headers=y

   123             ;;

   124         baremetal)

   125             core_prefix_dir="${CT_PREFIX_DIR}"

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

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

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

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

   130             copy_headers=n

   131             ;;

   132     esac

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

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

   136         CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"

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

   153     [ -z "${CT_GMP}"    ] || extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   154     [ -z "${CT_MPFR}"   ] || extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   155     [ -z "${CT_PPL}"    ] || extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   156     [ -z "${CT_CLOOG}"  ] || extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   157     [ -z "${CT_MPC}"    ] || extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

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

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

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

   163     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   164     CT_DoExecLog ALL                                \

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

   166         --build=${CT_BUILD}                         \

   167         --host=${CT_HOST}                           \

   168         --target=${CT_TARGET}                       \

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

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

   171         --disable-multilib                          \

   172         ${CC_CORE_SYSROOT_ARG}                      \

   173         "${extra_config[@]}"                        \

   174         --disable-nls                               \

   175         --enable-symvers=gnu                        \

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

   177         --enable-target-optspace                    \

   178         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   186         # cross toolchain during the final gcc build.

   187         #

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

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

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

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

   192         #

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

   194         # so we configure then build it.

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

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

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

   198             CT_DoExecLog ALL make configure-libiberty

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

   200             CT_DoExecLog ALL make configure-gcc configure-libcpp

   201             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   202         else

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

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

   205         fi

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

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

   208             CT_DoExecLog ALL make configure-libdecnumber

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

   210         fi

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

   213         # and libgcc.mvars is used instead.

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

   216             libgcc_rule="libgcc.mvars"

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

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

   219         else

   220             libgcc_rule="libgcc.mk"

   221             build_rules="all-gcc"

   222             install_rules="install-gcc"

   223         fi

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

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

   227     else # build_libgcc

   228             build_rules="all-gcc"

   229             install_rules="install-gcc"

   230     fi   # ! build libgcc

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

   233         CT_DoLog EXTRA "Building libiberty"

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

   235     fi

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

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

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

   241     CT_DoExecLog ALL make ${install_rules}

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

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

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

   247     CT_EndStep

   248 }

   250 #------------------------------------------------------------------------------

   251 # Build final gcc

   252 do_cc() {

   253     local -a extra_config

   254     local tmp

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

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

   259     CT_DoStep INFO "Installing final compiler"

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

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

   264     CT_DoLog EXTRA "Configuring final compiler"

   266     # Enable selected languages

   267     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   286         fi

   287     done

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

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

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

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

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

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

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

   296     else

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

   298     fi

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

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

   301     fi

   302     [ -z "${CT_GMP}"    ] || extra_config+=("--with-gmp=${CT_PREFIX_DIR}")

   303     [ -z "${CT_MPFR}"   ] || extra_config+=("--with-mpfr=${CT_PREFIX_DIR}")

   304     [ -z "${CT_PPL}"    ] || extra_config+=("--with-ppl=${CT_PREFIX_DIR}")

   305     [ -z "${CT_CLOOG}"  ] || extra_config+=("--with-cloog=${CT_PREFIX_DIR}")

   306     [ -z "${CT_MPC}"    ] || extra_config+=("--with-mpc=${CT_PREFIX_DIR}")

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

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

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

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

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

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

   315     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   316     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   317     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   318     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   319     CT_DoExecLog ALL                                \

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

   321         --build=${CT_BUILD}                         \

   322         --host=${CT_HOST}                           \

   323         --target=${CT_TARGET}                       \

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

   325         ${CC_SYSROOT_ARG}                           \

   326         "${extra_config[@]}"                        \

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

   328         --disable-nls                               \

   329         --enable-threads=posix                      \

   330         --enable-symvers=gnu                        \

   331         --enable-c99                                \

   332         --enable-long-long                          \

   333         --enable-target-optspace                    \

   334         ${CT_CC_EXTRA_CONFIG}

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

   337         CT_DoLog EXTRA "Building libiberty"

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

   339     fi

   341     CT_DoLog EXTRA "Building final compiler"

   342     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   344     CT_DoLog EXTRA "Installing final compiler"

   345     CT_DoExecLog ALL make install

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

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

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

   351     CT_EndStep

   352 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Wed Feb 17 23:50:49 2010 +0100 (2010-02-17)
changeset 1810	e44f67656c5f
parent 1484	c5451809efdb
child 1848	3f54c8d7f3f9
permissions	-rw-r--r--