crosstool-ng: scripts/build/cc/gcc.sh@21907956ad16

     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 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

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

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

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

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

   159         core_LDFLAGS='-lstdc++'

   160     fi

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

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

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

   164     fi

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

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

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

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

   169     fi

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

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

   172     fi

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

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

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

   178     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   179     LDFLAGS="${core_LDFLAGS}"                       \

   180     CT_DoExecLog ALL                                \

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

   182         --build=${CT_BUILD}                         \

   183         --host=${CT_HOST}                           \

   184         --target=${CT_TARGET}                       \

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

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

   187         --disable-multilib                          \

   188         ${CC_CORE_SYSROOT_ARG}                      \

   189         "${extra_config[@]}"                        \

   190         --disable-nls                               \

   191         --enable-symvers=gnu                        \

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

   193         --enable-target-optspace                    \

   194         ${CT_CC_CORE_EXTRA_CONFIG}

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

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

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

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

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

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

   202         # cross toolchain during the final gcc build.

   203         #

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

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

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

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

   208         #

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

   210         # so we configure then build it.

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

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

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

   214             CT_DoExecLog ALL make configure-libiberty

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

   216             CT_DoExecLog ALL make configure-gcc configure-libcpp

   217             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp

   218         else

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

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

   221         fi

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

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

   224             CT_DoExecLog ALL make configure-libdecnumber

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

   226         fi

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

   229         # and libgcc.mvars is used instead.

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

   232             libgcc_rule="libgcc.mvars"

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

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

   235         else

   236             libgcc_rule="libgcc.mk"

   237             build_rules="all-gcc"

   238             install_rules="install-gcc"

   239         fi

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

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

   243     else # build_libgcc

   244             build_rules="all-gcc"

   245             install_rules="install-gcc"

   246     fi   # ! build libgcc

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

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

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

   252     CT_DoExecLog ALL make ${install_rules}

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

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

   256     # check whether compiler has an extension

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

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

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

   261     CT_EndStep

   262 }

   264 #------------------------------------------------------------------------------

   265 # Build final gcc

   266 do_cc() {

   267     local -a extra_config

   268     local tmp

   269     local final_LDFLAGS

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

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

   274     CT_DoStep INFO "Installing final compiler"

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

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

   279     CT_DoLog EXTRA "Configuring final compiler"

   281     # Enable selected languages

   282     lang_opt="c"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   301         fi

   302     done

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

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

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

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

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

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

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

   311     else

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

   313     fi

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

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

   316     fi

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

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

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

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

   322         final_LDFLAGS='-lstdc++'

   323     fi

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

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

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

   327     fi

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

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

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

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

   332     fi

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

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

   335     fi

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

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

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

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

   341         fi

   342     else

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

   344     fi

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

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

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

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

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

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

   353     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \

   354     LDFLAGS="${final_LDFLAGS}"                      \

   355     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \

   356     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \

   357     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \

   358     CT_DoExecLog ALL                                \

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

   360         --build=${CT_BUILD}                         \

   361         --host=${CT_HOST}                           \

   362         --target=${CT_TARGET}                       \

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

   364         ${CC_SYSROOT_ARG}                           \

   365         "${extra_config[@]}"                        \

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

   367         --disable-nls                               \

   368         --enable-symvers=gnu                        \

   369         --enable-c99                                \

   370         --enable-long-long                          \

   371         --enable-target-optspace                    \

   372         ${CT_CC_EXTRA_CONFIG}

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

   375         CT_DoLog EXTRA "Building libiberty"

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

   377     fi

   379     CT_DoLog EXTRA "Building final compiler"

   380     CT_DoExecLog ALL make ${PARALLELMFLAGS} all

   382     CT_DoLog EXTRA "Installing final compiler"

   383     CT_DoExecLog ALL make install

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

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

   387     # check whether compiler has an extension

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

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

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

   392     CT_EndStep

   393 }

author	Remy Bohmer <linux@bohmer.net>
	Tue Apr 20 10:06:04 2010 +0200 (2010-04-20)
changeset 1925	21907956ad16
parent 1924	214c64ba8b21
child 1926	e6a9a4f36645
permissions	-rw-r--r--