scripts/build/cc/gcc.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Jun 27 18:04:50 2011 +0200 (2011-06-27)
changeset 2523 b1bf9ca6db1a
parent 2522 ff2481a6e60f
child 2532 288e460c3656
permissions -rw-r--r--
cc/gcc: add MIPS spercific configure options

Add the following MIPS specific options when configuring gcc:
--with(out)-llsc
--with(out)-synci
--with(out)-mips-plt
--with-divide=type

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     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
     4 
     5 # Download gcc
     6 do_cc_get() {
     7     local linaro_version
     8     local linaro_series
     9     local linaro_base_url="http://launchpad.net/gcc-linaro"
    10 
    11 
    12     # Account for the Linaro versioning
    13     linaro_version="$( echo "${CT_CC_VERSION}"      \
    14                        |sed -r -e 's/^linaro-//;'   \
    15                      )"
    16     linaro_series="$( echo "${linaro_version}"      \
    17                       |sed -r -e 's/-.*//;'         \
    18                     )"
    19 
    20     # Ah! gcc folks are kind of 'different': they store the tarballs in
    21     # subdirectories of the same name! That's because gcc is such /crap/ that
    22     # it is such /big/ that it needs being splitted for distribution! Sad. :-(
    23     # Arrgghh! Some of those versions does not follow this convention:
    24     # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
    25     # subdirectory! You bastard!
    26     CT_GetFile "gcc-${CT_CC_VERSION}"                                                       \
    27                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}}         \
    28                ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION} \
    29                ftp://ftp.uvsq.fr/pub/gcc/snapshots/${CT_CC_VERSION}                         \
    30                "${linaro_base_url}/${linaro_series}/${linaro_version}/+download"
    31 
    32     # Starting with GCC 4.3, ecj is used for Java, and will only be
    33     # built if the configure script finds ecj.jar at the top of the
    34     # GCC source tree, which will not be there unless we get it and
    35     # put it there ourselves
    36     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
    37         CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java   \
    38                                    ftp://sourceware.org/pub/java
    39     fi
    40 }
    41 
    42 # Extract gcc
    43 do_cc_extract() {
    44     CT_Extract "gcc-${CT_CC_VERSION}"
    45     CT_Patch "gcc" "${CT_CC_VERSION}"
    46 
    47     # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
    48     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y"                     \
    49          -a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"   \
    50        ]; then
    51         CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
    52     fi
    53 }
    54 
    55 #------------------------------------------------------------------------------
    56 # Core gcc pass 1
    57 do_cc_core_pass_1() {
    58     # If we're building for bare metal, build the static core gcc,
    59     # with libgcc.
    60     # In case we're not bare metal and building a canadian compiler, do nothing
    61     # In case we're not bare metal, and we're NPTL, build the static core gcc.
    62     # In any other case, do nothing.
    63     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
    64         y,*,*)  do_cc_core mode=static;;
    65         ,y,*)   ;;
    66         ,,nptl) do_cc_core mode=static;;
    67         *)      ;;
    68     esac
    69 }
    70 
    71 # Core gcc pass 2
    72 do_cc_core_pass_2() {
    73     # In case we're building for bare metal, do nothing, we already have
    74     # our compiler.
    75     # In case we're not bare metal and building a canadian compiler, do nothing
    76     # In case we're NPTL, build the shared core gcc and the target libgcc.
    77     # In any other case, build the static core gcc and, if using gcc-4.3+,
    78     # also build the target libgcc.
    79     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
    80         y,*,*)
    81             if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
    82                 do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes build_staticlinked=yes
    83             else
    84                 do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes
    85             fi
    86             ;;
    87         ,y,*)   ;;
    88         ,,nptl)
    89             do_cc_core mode=shared build_libgcc=yes
    90             ;;
    91         ,,win32)
    92             do_cc_core mode=static build_libgcc=yes
    93             ;;
    94         *)  if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
    95                 do_cc_core mode=static build_libgcc=yes
    96             else
    97                 do_cc_core mode=static
    98             fi
    99             ;;
   100     esac
   101 }
   102 
   103 #------------------------------------------------------------------------------
   104 # Build core gcc
   105 # This function is used to build both the static and the shared core C conpiler,
   106 # with or without the target libgcc. We need to know wether:
   107 #  - we're building static, shared or bare metal: mode=[static|shared|baremetal]
   108 #  - we need to build libgcc or not             : build_libgcc=[yes|no]       (default: no)
   109 #  - we need to build libstdc++ or not          : build_libstdcxx=[yes|no]    (default: no)
   110 #  - we need to build statically linked or not  : build_staticlinked=[yes|no] (default: no)
   111 # Usage: do_cc_core mode=[static|shared|baremetal] build_libgcc=[yes|no] build_staticlinked=[yes|no]
   112 do_cc_core() {
   113     local mode
   114     local build_libgcc=no
   115     local build_libstdcxx=no
   116     local build_staticlinked=no
   117     local core_prefix_dir
   118     local lang_opt
   119     local tmp
   120     local -a host_libstdcxx_flags
   121     local -a extra_config
   122     local -a core_LDFLAGS
   123     local -a core_targets
   124 
   125     while [ $# -ne 0 ]; do
   126         eval "${1}"
   127         shift
   128     done
   129 
   130     lang_opt=c
   131     case "${mode}" in
   132         static)
   133             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
   134             extra_config+=("--with-newlib")
   135             extra_config+=("--enable-threads=no")
   136             extra_config+=("--disable-shared")
   137             copy_headers=y  # For baremetal, as there's no headers to copy,
   138                             # we copy an empty directory. So, who cares?
   139             ;;
   140         shared)
   141             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
   142             extra_config+=("--enable-shared")
   143             copy_headers=y
   144             ;;
   145         baremetal)
   146             core_prefix_dir="${CT_PREFIX_DIR}"
   147             extra_config+=("--with-newlib")
   148             extra_config+=("--enable-threads=no")
   149             extra_config+=("--disable-shared")
   150             [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
   151             copy_headers=n
   152             ;;
   153         *)
   154             CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
   155             ;;
   156     esac
   157 
   158     CT_DoStep INFO "Installing ${mode} core C compiler"
   159     mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
   160     cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
   161 
   162     if [ "${CT_CC_GCC_HAS_PKGVERSION_BUGURL}" = "y" ]; then
   163         # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
   164         extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
   165         [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
   166     fi
   167 
   168     if [ "${copy_headers}" = "y" ]; then
   169         CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
   170         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
   171     fi
   172 
   173     CT_DoLog EXTRA "Configuring ${mode} core C compiler"
   174 
   175     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   176         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   177         if [ -n "${tmp}" ]; then
   178             extra_config+=("${tmp}")
   179         fi
   180     done
   181     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   182         extra_config+=("--enable-__cxa_atexit")
   183     else
   184         extra_config+=("--disable-__cxa_atexit")
   185     fi
   186 
   187     # *** WARNING ! ***
   188     # Keep this full if-else-if-elif-fi-fi block in sync
   189     # with the same block in do_cc, below.
   190     if [ "${build_staticlinked}" = "yes" ]; then
   191         core_LDFLAGS+=("-static")
   192         host_libstdcxx_flags+=("-static-libgcc")
   193         host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++")
   194         host_libstdcxx_flags+=("-lm")
   195         # Companion libraries are build static (eg !shared), so
   196         # the libstdc++ is not pulled automatically, although it
   197         # is needed. Shoe-horn it in our LDFLAGS
   198         # Ditto libm on some Fedora boxen
   199         core_LDFLAGS+=("-lstdc++")
   200         core_LDFLAGS+=("-lm")
   201     else
   202         if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
   203             # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
   204             # build script
   205             # INFO: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
   206             #       see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
   207             host_libstdcxx_flags+=("-static-libgcc")
   208             host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic")
   209             host_libstdcxx_flags+=("-lm")
   210         elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   211             # When companion libraries are build static (eg !shared),
   212             # the libstdc++ is not pulled automatically, although it
   213             # is needed. Shoe-horn it in our LDFLAGS
   214             # Ditto libm on some Fedora boxen
   215             core_LDFLAGS+=("-lstdc++")
   216             core_LDFLAGS+=("-lm")
   217         fi
   218     fi
   219 
   220     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   221         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
   222         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
   223     fi
   224     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   225         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
   226     fi
   227     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   228         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
   229         # With PPL 0.11+, also pull libpwl if needed
   230         if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
   231             host_libstdcxx_flags+=("-L${CT_COMPLIBS_DIR}/lib")
   232             host_libstdcxx_flags+=("-lpwl")
   233         fi
   234         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
   235     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   236         extra_config+=("--with-ppl=no")
   237         extra_config+=("--with-cloog=no")
   238     fi
   239     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   240         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
   241         extra_config+=("--enable-lto")
   242     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   243         extra_config+=("--with-libelf=no")
   244         extra_config+=("--disable-lto")
   245     fi
   246 
   247     if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then
   248         extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}")
   249     fi
   250 
   251     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   252         extra_config+=("--enable-target-optspace")
   253     fi
   254 
   255     case "${CT_CC_GCC_LDBL_128}" in
   256         y)  extra_config+=("--with-long-double-128");;
   257         m)  ;;
   258         "") extra_config+=("--without-long-double-128");;
   259     esac
   260 
   261     if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then
   262         extra_config+=( --enable-linker-build-id )
   263     fi
   264 
   265     case "${CT_CC_GCC_LNK_HASH_STYLE}" in
   266         "") ;;
   267         *)  extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );;
   268     esac
   269 
   270     case "${CT_CC_GCC_mips_llsc}" in
   271         y)  extra_config+=( --with-llsc );;
   272         m)  ;;
   273         *)  extra_config+=( --without-llsc );;
   274     esac
   275 
   276     case "${CT_CC_GCC_mips_synci}" in
   277         y)  extra_config+=( --with-synci );;
   278         m)  ;;
   279         *)  extra_config+=( --without-synci );;
   280     esac
   281 
   282     if [ "${CT_CC_GCC_mips_plt}" ]; then
   283         extra_config+=( --with-mips-plt )
   284     fi
   285 
   286     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   287 
   288     # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
   289     CT_DoExecLog CFG                                \
   290     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   291     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   292     LDFLAGS="${core_LDFLAGS[*]}"                    \
   293     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   294         --build=${CT_BUILD}                         \
   295         --host=${CT_HOST}                           \
   296         --target=${CT_TARGET}                       \
   297         --prefix="${core_prefix_dir}"               \
   298         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   299         --disable-multilib                          \
   300         --disable-libmudflap                        \
   301         ${CC_CORE_SYSROOT_ARG}                      \
   302         "${extra_config[@]}"                        \
   303         --disable-nls                               \
   304         --enable-languages="${lang_opt}"            \
   305         "${CT_CC_CORE_EXTRA_CONFIG_ARRAY[@]}"
   306 
   307     if [ "${build_libgcc}" = "yes" ]; then
   308         # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
   309         # gcc/config/t-libunwind so -lc is removed from the link for
   310         # libgcc_s.so, as we do not have a target -lc yet.
   311         # This is not as ugly as it appears to be ;-) All symbols get resolved
   312         # during the glibc build, and we provide a proper libgcc_s.so for the
   313         # cross toolchain during the final gcc build.
   314         #
   315         # As we cannot modify the source tree, nor override SHLIB_LC itself
   316         # during configure or make, we have to edit the resultant
   317         # gcc/libgcc.mk itself to remove -lc from the link.
   318         # This causes us to have to jump through some hoops...
   319         #
   320         # To produce libgcc.mk to edit we firstly require libiberty.a,
   321         # so we configure then build it.
   322         # Next we have to configure gcc, create libgcc.mk then edit it...
   323         # So much easier if we just edit the source tree, but hey...
   324         if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
   325             CT_DoExecLog CFG make configure-libiberty
   326             CT_DoExecLog ALL make ${JOBSFLAGS} -C libiberty libiberty.a
   327             CT_DoExecLog CFG make configure-gcc configure-libcpp
   328             CT_DoExecLog ALL make ${JOBSFLAGS} all-libcpp
   329         else
   330             CT_DoExecLog CFG make configure-gcc configure-libcpp configure-build-libiberty
   331             CT_DoExecLog ALL make ${JOBSFLAGS} all-libcpp all-build-libiberty
   332         fi
   333         # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
   334         if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
   335             CT_DoExecLog CFG make configure-libdecnumber
   336             CT_DoExecLog ALL make ${JOBSFLAGS} -C libdecnumber libdecnumber.a
   337         fi
   338 
   339         # Starting with GCC 4.3, libgcc.mk is no longer built,
   340         # and libgcc.mvars is used instead.
   341 
   342         if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
   343             libgcc_rule="libgcc.mvars"
   344             core_targets=( gcc target-libgcc )
   345         else
   346             libgcc_rule="libgcc.mk"
   347             core_targets=( gcc )
   348         fi
   349 
   350         # On bare metal and canadian build the host-compiler is used when
   351         # actually the build-system compiler is required. Choose the correct
   352         # compilers for canadian build and use the defaults on other
   353         # configurations.
   354         if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
   355             repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
   356                        GCC_FOR_TARGET=${CT_TARGET}-gcc"
   357         else
   358             repair_cc=""
   359         fi
   360 
   361         CT_DoExecLog ALL make ${JOBSFLAGS} -C gcc ${libgcc_rule} \
   362                               ${repair_cc}
   363         sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
   364     else # build_libgcc
   365         core_targets=( gcc )
   366     fi   # ! build libgcc
   367     if [    "${build_libstdcxx}" = "yes"    \
   368          -a "${CT_CC_LANG_CXX}"  = "y"      \
   369        ]; then
   370         core_targets+=( target-libstdc++-v3 )
   371     fi
   372 
   373     CT_DoLog EXTRA "Building ${mode} core C compiler"
   374     CT_DoExecLog ALL make ${JOBSFLAGS} "${core_targets[@]/#/all-}"
   375 
   376     CT_DoLog EXTRA "Installing ${mode} core C compiler"
   377     CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
   378 
   379     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   380     # to call the C compiler with the same, somewhat canonical name.
   381     # check whether compiler has an extension
   382     file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   383     [ -z "${file}" ] || ext=".${file##*.}"
   384     CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
   385 
   386     CT_EndStep
   387 }
   388 
   389 #------------------------------------------------------------------------------
   390 # Build final gcc
   391 do_cc() {
   392     local -a host_libstdcxx_flags
   393     local -a extra_config
   394     local -a final_LDFLAGS
   395     local tmp
   396 
   397     # If building for bare metal, nothing to be done here, the static core conpiler is enough!
   398     [ "${CT_BARE_METAL}" = "y" ] && return 0
   399 
   400     CT_DoStep INFO "Installing final compiler"
   401 
   402     mkdir -p "${CT_BUILD_DIR}/build-cc"
   403     cd "${CT_BUILD_DIR}/build-cc"
   404 
   405     CT_DoLog EXTRA "Configuring final compiler"
   406 
   407     # Enable selected languages
   408     lang_opt="c"
   409     [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"
   410     [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"
   411     [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"
   412     [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"
   413     [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"
   414     [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"
   415     CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
   416     CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
   417     CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
   418     CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
   419     lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
   420 
   421     extra_config+=("--enable-languages=${lang_opt}")
   422     extra_config+=("--disable-multilib")
   423     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   424         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   425         if [ -n "${tmp}" ]; then
   426             extra_config+=("${tmp}")
   427         fi
   428     done
   429 
   430     [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
   431     if [ "${CT_CC_GCC_HAS_PKGVERSION_BUGURL}" = "y" ]; then
   432         extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
   433         [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
   434     fi
   435     case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
   436         y)  extra_config+=("--enable-sjlj-exceptions");;
   437         m)  ;;
   438         "") extra_config+=("--disable-sjlj-exceptions");;
   439     esac
   440     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   441         extra_config+=("--enable-__cxa_atexit")
   442     else
   443         extra_config+=("--disable-__cxa_atexit")
   444     fi
   445     if [ -n "${CT_CC_ENABLE_CXX_FLAGS}" ]; then
   446         extra_config+=("--enable-cxx-flags=${CT_CC_ENABLE_CXX_FLAGS}")
   447     fi
   448     if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
   449         extra_config+=(--enable-libmudflap)
   450     else
   451         extra_config+=(--disable-libmudflap)
   452     fi
   453     if [ "${CT_CC_GCC_LIBGOMP}" = "y" ]; then
   454         extra_config+=(--enable-libgomp)
   455     else
   456         extra_config+=(--disable-libgomp)
   457     fi
   458     if [ "${CT_CC_GCC_LIBSSP}" = "y" ]; then
   459         extra_config+=(--enable-libssp)
   460     else
   461         extra_config+=(--disable-libssp)
   462     fi
   463 
   464     # *** WARNING ! ***
   465     # Keep this full if-else-if-elif-fi-fi block in sync
   466     # with the same block in do_cc_core, above.
   467     if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
   468         final_LDFLAGS+=("-static")
   469         host_libstdcxx_flags+=("-static-libgcc")
   470         host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++")
   471         host_libstdcxx_flags+=("-lm")
   472         # Companion libraries are build static (eg !shared), so
   473         # the libstdc++ is not pulled automatically, although it
   474         # is needed. Shoe-horn it in our LDFLAGS
   475         # Ditto libm on some Fedora boxen
   476         final_LDFLAGS+=("-lstdc++")
   477         final_LDFLAGS+=("-lm")
   478     else
   479         if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
   480             # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
   481             # build script
   482             # INFO: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
   483             #       see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
   484             host_libstdcxx_flags+=("-static-libgcc")
   485             host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic")
   486             host_libstdcxx_flags+=("-lm")
   487         elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   488             # When companion libraries are build static (eg !shared),
   489             # the libstdc++ is not pulled automatically, although it
   490             # is needed. Shoe-horn it in our LDFLAGS
   491             # Ditto libm on some Fedora boxen
   492             final_LDFLAGS+=("-lstdc++")
   493             final_LDFLAGS+=("-lm")
   494         fi
   495     fi
   496 
   497     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   498         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
   499         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
   500     fi
   501     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   502         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
   503     fi
   504     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   505         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
   506         # With PPL 0.11+, also pull libpwl if needed
   507         if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
   508             host_libstdcxx_flags+=("-L${CT_COMPLIBS_DIR}/lib")
   509             host_libstdcxx_flags+=("-lpwl")
   510         fi
   511         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
   512     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   513         extra_config+=("--with-ppl=no")
   514         extra_config+=("--with-cloog=no")
   515     fi
   516     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   517         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
   518     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   519         extra_config+=("--with-libelf=no")
   520     fi
   521 
   522     if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then
   523         extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}")
   524     fi
   525 
   526     if [ "${CT_THREADS}" = "none" ]; then
   527         extra_config+=("--disable-threads")
   528         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
   529             CT_Test "Disabling libgomp for no-thread gcc>=4.2" "${CT_CC_GCC_LIBGOMP}" = "Y"
   530             extra_config+=("--disable-libgomp")
   531         fi
   532     else
   533         if [ "${CT_THREADS}" = "win32" ]; then
   534             extra_config+=("--enable-threads=win32")
   535             extra_config+=("--disable-win32-registry")
   536         else
   537             extra_config+=("--enable-threads=posix")
   538         fi
   539     fi
   540 
   541     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   542         extra_config+=("--enable-target-optspace")
   543     fi
   544     if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
   545         extra_config+=("--disable-libstdcxx-pch")
   546     fi
   547 
   548     case "${CT_CC_GCC_LDBL_128}" in
   549         y)  extra_config+=("--with-long-double-128");;
   550         m)  ;;
   551         "") extra_config+=("--without-long-double-128");;
   552     esac
   553 
   554     if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then
   555         extra_config+=( --enable-linker-build-id )
   556     fi
   557 
   558     case "${CT_CC_GCC_LNK_HASH_STYLE}" in
   559         "") ;;
   560         *)  extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );;
   561     esac
   562 
   563     case "${CT_CC_GCC_mips_llsc}" in
   564         y)  extra_config+=( --with-llsc );;
   565         m)  ;;
   566         *)  extra_config+=( --without-llsc );;
   567     esac
   568 
   569     case "${CT_CC_GCC_mips_synci}" in
   570         y)  extra_config+=( --with-synci );;
   571         m)  ;;
   572         *)  extra_config+=( --without-synci );;
   573     esac
   574 
   575     if [ "${CT_CC_GCC_mips_plt}" ]; then
   576         extra_config+=( --with-mips-plt )
   577     fi
   578 
   579     if [ "${CT_CC_GCC_ENABLE_PLUGINS}" = "y" ]; then
   580         extra_config+=( --enable-plugin )
   581     fi
   582     if [ "${CT_CC_GCC_GOLD}" = "y" ]; then
   583         extra_config+=( --enable-gold )
   584     fi
   585 
   586     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   587 
   588     # --disable-nls to work around crash bug on ppc405, but also because
   589     # embedded systems don't really need message catalogs...
   590     CT_DoExecLog CFG                                \
   591     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   592     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   593     LDFLAGS="${final_LDFLAGS[*]}"                   \
   594     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \
   595     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \
   596     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \
   597     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   598         --build=${CT_BUILD}                         \
   599         --host=${CT_HOST}                           \
   600         --target=${CT_TARGET}                       \
   601         --prefix="${CT_PREFIX_DIR}"                 \
   602         ${CC_SYSROOT_ARG}                           \
   603         "${extra_config[@]}"                        \
   604         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   605         --disable-nls                               \
   606         --enable-c99                                \
   607         --enable-long-long                          \
   608         "${CT_CC_EXTRA_CONFIG_ARRAY[@]}"
   609 
   610     if [ "${CT_CANADIAN}" = "y" ]; then
   611         CT_DoLog EXTRA "Building libiberty"
   612         CT_DoExecLog ALL make ${JOBSFLAGS} all-build-libiberty
   613     fi
   614 
   615     CT_DoLog EXTRA "Building final compiler"
   616     CT_DoExecLog ALL make ${JOBSFLAGS} all
   617 
   618     CT_DoLog EXTRA "Installing final compiler"
   619     CT_DoExecLog ALL make install
   620 
   621     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   622     # to call the C compiler with the same, somewhat canonical name.
   623     # check whether compiler has an extension
   624     file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   625     [ -z "${file}" ] || ext=".${file##*.}"
   626     CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"
   627 
   628     CT_EndStep
   629 }