scripts/build/cc/gcc.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 18:10:53 2011 +0200 (2011-07-17)
changeset 2890 a59712c236df
parent 2889 f3b2199620f1
child 2891 f176fee535a0
permissions -rw-r--r--
cc/gcc: add host parameter to core compiler build process

Tell the core compiler what host it should run on (instead of
hard-coding runing on CT_HOST).

No functional change so far, switching between CT_HOST and CT_BUILD
will come in a following patch.

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     local -a core_opts
    59     local do_core
    60 
    61     # If we're building for bare metal, build the static core gcc,
    62     # with libgcc.
    63     # In case we're not bare metal and building a canadian compiler, do nothing
    64     # In case we're not bare metal, and we're NPTL, build the static core gcc.
    65     # In any other case, do nothing.
    66     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
    67         y,*,*)
    68             do_core=y
    69             core_opts+=( "mode=static" )
    70             core_opts+=( "host=${CT_HOST}" )
    71             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
    72             core_opts+=( "prefix=${CT_CC_CORE_STATIC_PREFIX_DIR}" )
    73             ;;
    74         ,y,*)
    75             ;;
    76         ,,nptl)
    77             do_core=y
    78             core_opts+=( "mode=static" )
    79             core_opts+=( "host=${CT_HOST}" )
    80             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
    81             core_opts+=( "prefix=${CT_CC_CORE_STATIC_PREFIX_DIR}" )
    82             ;;
    83         *)
    84             ;;
    85     esac
    86 
    87     if [ "${do_core}" = "y" ]; then
    88         do_cc_core_backend "${core_opts[@]}"
    89     fi
    90 }
    91 
    92 # Core gcc pass 2
    93 do_cc_core_pass_2() {
    94     local -a core_opts
    95     local do_core
    96 
    97     # In case we're building for bare metal, do nothing, we already have
    98     # our compiler.
    99     # In case we're not bare metal and building a canadian compiler, do nothing
   100     # In case we're NPTL, build the shared core gcc and the target libgcc.
   101     # In any other case, build the static core gcc and, if using gcc-4.3+,
   102     # also build the target libgcc.
   103     case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
   104         y,*,*)
   105             do_core=y
   106             core_opts+=( "mode=baremetal" )
   107             core_opts+=( "host=${CT_HOST}" )
   108             core_opts+=( "build_libgcc=yes" )
   109             core_opts+=( "build_libstdcxx=yes" )
   110             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
   111             core_opts+=( "prefix=${CT_PREFIX_DIR}" )
   112             if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
   113                 core_opts+=( "build_staticlinked=yes" )
   114             fi
   115             core_opts+=( "build_manuals=yes" )
   116             ;;
   117         ,y,*)   ;;
   118         ,,nptl)
   119             do_core=y
   120             core_opts+=( "mode=shared" )
   121             core_opts+=( "host=${CT_HOST}" )
   122             core_opts+=( "build_libgcc=yes" )
   123             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
   124             core_opts+=( "prefix=${CT_CC_CORE_SHARED_PREFIX_DIR}" )
   125             ;;
   126         ,,win32)
   127             do_core=y
   128             core_opts+=( "mode=static" )
   129             core_opts+=( "host=${CT_HOST}" )
   130             core_opts+=( "build_libgcc=yes" )
   131             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
   132             core_opts+=( "prefix=${CT_CC_CORE_STATIC_PREFIX_DIR}" )
   133             ;;
   134         *)
   135             do_core=y
   136             core_opts+=( "mode=static" )
   137             core_opts+=( "host=${CT_HOST}" )
   138             core_opts+=( "complibs=${CT_COMPLIBS_DIR}" )
   139             core_opts+=( "prefix=${CT_CC_CORE_STATIC_PREFIX_DIR}" )
   140             if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
   141                 core_opts+=( "build_libgcc=yes" )
   142             fi
   143             ;;
   144     esac
   145 
   146     if [ "${do_core}" = "y" ]; then
   147         do_cc_core_backend "${core_opts[@]}"
   148     fi
   149 }
   150 
   151 #------------------------------------------------------------------------------
   152 # Build core gcc
   153 # This function is used to build both the static and the shared core C compiler,
   154 # with or without the target libgcc. We need to know wether:
   155 #  - we're building static, shared or bare metal: mode=[static|shared|baremetal]
   156 #  - we need to build libgcc or not             : build_libgcc=[yes|no]       (default: no)
   157 #  - we need to build libstdc++ or not          : build_libstdcxx=[yes|no]    (default: no)
   158 #  - we need to build statically linked or not  : build_staticlinked=[yes|no] (default: no)
   159 #  - where to find the companion libs (prefix)  : complibs=<prefix_dir>       (no default value)
   160 #  - the prefix to install into (directory)     : prefix=<directory>          (no default value)
   161 #  - the machine we will run on (tuple)         : host=<tuple>                (no default tuple)
   162 # Usage: do_cc_core_backend mode=[static|shared|baremetal] build_libgcc=[yes|no] build_staticlinked=[yes|no]
   163 do_cc_core_backend() {
   164     local mode
   165     local build_libgcc=no
   166     local build_libstdcxx=no
   167     local build_staticlinked=no
   168     local build_manuals=no
   169     local host
   170     local prefix
   171     local complibs
   172     local lang_opt
   173     local tmp
   174     local -a host_libstdcxx_flags
   175     local -a extra_config
   176     local -a core_LDFLAGS
   177     local -a core_targets
   178     local arg
   179 
   180     for arg in "$@"; do
   181         eval "${arg// /\\ }"
   182     done
   183 
   184     lang_opt=c
   185     case "${mode}" in
   186         static)
   187             extra_config+=("--with-newlib")
   188             extra_config+=("--enable-threads=no")
   189             extra_config+=("--disable-shared")
   190             copy_headers=y  # For baremetal, as there's no headers to copy,
   191                             # we copy an empty directory. So, who cares?
   192             ;;
   193         shared)
   194             extra_config+=("--enable-shared")
   195             copy_headers=y
   196             ;;
   197         baremetal)
   198             extra_config+=("--with-newlib")
   199             extra_config+=("--enable-threads=no")
   200             extra_config+=("--disable-shared")
   201             [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
   202             copy_headers=n
   203             ;;
   204         *)
   205             CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
   206             ;;
   207     esac
   208 
   209     CT_DoStep INFO "Installing ${mode} core C compiler"
   210     mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
   211     cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
   212 
   213     if [ "${CT_CC_GCC_HAS_PKGVERSION_BUGURL}" = "y" ]; then
   214         # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
   215         extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
   216         [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
   217     fi
   218 
   219     if [ "${copy_headers}" = "y" ]; then
   220         CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
   221         CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${prefix}/${CT_TARGET}/include"
   222     fi
   223 
   224     CT_DoLog EXTRA "Configuring ${mode} core C compiler"
   225 
   226     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   227         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   228         if [ -n "${tmp}" ]; then
   229             extra_config+=("${tmp}")
   230         fi
   231     done
   232     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   233         extra_config+=("--enable-__cxa_atexit")
   234     else
   235         extra_config+=("--disable-__cxa_atexit")
   236     fi
   237 
   238     # *** WARNING ! ***
   239     # Keep this full if-else-if-elif-fi-fi block in sync
   240     # with the same block in do_cc, below.
   241     if [ "${build_staticlinked}" = "yes" ]; then
   242         core_LDFLAGS+=("-static")
   243         host_libstdcxx_flags+=("-static-libgcc")
   244         host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++")
   245         host_libstdcxx_flags+=("-lm")
   246         # Companion libraries are build static (eg !shared), so
   247         # the libstdc++ is not pulled automatically, although it
   248         # is needed. Shoe-horn it in our LDFLAGS
   249         # Ditto libm on some Fedora boxen
   250         core_LDFLAGS+=("-lstdc++")
   251         core_LDFLAGS+=("-lm")
   252     else
   253         if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
   254             # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
   255             # build script
   256             # INFO: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
   257             #       see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
   258             host_libstdcxx_flags+=("-static-libgcc")
   259             host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic")
   260             host_libstdcxx_flags+=("-lm")
   261         elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   262             # When companion libraries are build static (eg !shared),
   263             # the libstdc++ is not pulled automatically, although it
   264             # is needed. Shoe-horn it in our LDFLAGS
   265             # Ditto libm on some Fedora boxen
   266             core_LDFLAGS+=("-lstdc++")
   267             core_LDFLAGS+=("-lm")
   268         fi
   269     fi
   270 
   271     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   272         extra_config+=("--with-gmp=${complibs}")
   273         extra_config+=("--with-mpfr=${complibs}")
   274     fi
   275     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   276         extra_config+=("--with-mpc=${complibs}")
   277     fi
   278     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   279         extra_config+=("--with-ppl=${complibs}")
   280         # With PPL 0.11+, also pull libpwl if needed
   281         if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
   282             host_libstdcxx_flags+=("-L${complibs}/lib")
   283             host_libstdcxx_flags+=("-lpwl")
   284         fi
   285         extra_config+=("--with-cloog=${complibs}")
   286     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   287         extra_config+=("--with-ppl=no")
   288         extra_config+=("--with-cloog=no")
   289     fi
   290     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   291         extra_config+=("--with-libelf=${complibs}")
   292         extra_config+=("--enable-lto")
   293     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   294         extra_config+=("--with-libelf=no")
   295         extra_config+=("--disable-lto")
   296     fi
   297 
   298     if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then
   299         extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}")
   300     fi
   301 
   302     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   303         extra_config+=("--enable-target-optspace")
   304     fi
   305 
   306     case "${CT_CC_GCC_LDBL_128}" in
   307         y)  extra_config+=("--with-long-double-128");;
   308         m)  ;;
   309         "") extra_config+=("--without-long-double-128");;
   310     esac
   311 
   312     if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then
   313         extra_config+=( --enable-linker-build-id )
   314     fi
   315 
   316     case "${CT_CC_GCC_LNK_HASH_STYLE}" in
   317         "") ;;
   318         *)  extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );;
   319     esac
   320 
   321     case "${CT_ARCH}" in
   322         mips)
   323             case "${CT_CC_GCC_mips_llsc}" in
   324                 y)  extra_config+=( --with-llsc );;
   325                 m)  ;;
   326                 *)  extra_config+=( --without-llsc );;
   327             esac
   328             case "${CT_CC_GCC_mips_synci}" in
   329                 y)  extra_config+=( --with-synci );;
   330                 m)  ;;
   331                 *)  extra_config+=( --without-synci );;
   332             esac
   333             if [ "${CT_CC_GCC_mips_plt}" ]; then
   334                 extra_config+=( --with-mips-plt )
   335             fi
   336             ;; # ARCH is mips
   337     esac
   338 
   339     extra_config+=(--disable-libgomp)
   340     extra_config+=(--disable-libmudflap)
   341 
   342     [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] && extra_config+=("--disable-nls")
   343 
   344     [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ] && extra_config+=("--disable-libstdcxx-pch")
   345 
   346     if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then
   347         extra_config+=("--with-system-zlib")
   348     fi
   349 
   350     if [ "${CT_MULTILIB}" = "y" ]; then
   351         extra_config+=("--enable-multilib")
   352     else
   353         extra_config+=("--disable-multilib")
   354     fi
   355 
   356     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   357 
   358     # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
   359     CT_DoExecLog CFG                                \
   360     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   361     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   362     LDFLAGS="${core_LDFLAGS[*]}"                    \
   363     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   364         --build=${CT_BUILD}                         \
   365         --host=${host}                              \
   366         --target=${CT_TARGET}                       \
   367         --prefix="${prefix}"                        \
   368         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   369         --disable-libmudflap                        \
   370         ${CC_CORE_SYSROOT_ARG}                      \
   371         "${extra_config[@]}"                        \
   372         --enable-languages="${lang_opt}"            \
   373         "${CT_CC_CORE_EXTRA_CONFIG_ARRAY[@]}"
   374 
   375     if [ "${build_libgcc}" = "yes" ]; then
   376         # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
   377         # gcc/config/t-libunwind so -lc is removed from the link for
   378         # libgcc_s.so, as we do not have a target -lc yet.
   379         # This is not as ugly as it appears to be ;-) All symbols get resolved
   380         # during the glibc build, and we provide a proper libgcc_s.so for the
   381         # cross toolchain during the final gcc build.
   382         #
   383         # As we cannot modify the source tree, nor override SHLIB_LC itself
   384         # during configure or make, we have to edit the resultant
   385         # gcc/libgcc.mk itself to remove -lc from the link.
   386         # This causes us to have to jump through some hoops...
   387         #
   388         # To produce libgcc.mk to edit we firstly require libiberty.a,
   389         # so we configure then build it.
   390         # Next we have to configure gcc, create libgcc.mk then edit it...
   391         # So much easier if we just edit the source tree, but hey...
   392         if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
   393             CT_DoExecLog CFG make ${JOBSFLAGS} configure-libiberty
   394             CT_DoExecLog ALL make ${JOBSFLAGS} -C libiberty libiberty.a
   395             CT_DoExecLog CFG make ${JOBSFLAGS} configure-gcc configure-libcpp
   396             CT_DoExecLog ALL make ${JOBSFLAGS} all-libcpp
   397         else
   398             CT_DoExecLog CFG make ${JOBSFLAGS} configure-gcc configure-libcpp configure-build-libiberty
   399             CT_DoExecLog ALL make ${JOBSFLAGS} all-libcpp all-build-libiberty
   400         fi
   401         # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
   402         if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
   403             CT_DoExecLog CFG make ${JOBSFLAGS} configure-libdecnumber
   404             CT_DoExecLog ALL make ${JOBSFLAGS} -C libdecnumber libdecnumber.a
   405         fi
   406 
   407         # Starting with GCC 4.3, libgcc.mk is no longer built,
   408         # and libgcc.mvars is used instead.
   409 
   410         if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
   411             libgcc_rule="libgcc.mvars"
   412             core_targets=( gcc target-libgcc )
   413         else
   414             libgcc_rule="libgcc.mk"
   415             core_targets=( gcc )
   416         fi
   417 
   418         # On bare metal and canadian build the host-compiler is used when
   419         # actually the build-system compiler is required. Choose the correct
   420         # compilers for canadian build and use the defaults on other
   421         # configurations.
   422         if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
   423             repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
   424                        GCC_FOR_TARGET=${CT_TARGET}-gcc"
   425         else
   426             repair_cc=""
   427         fi
   428 
   429         CT_DoExecLog ALL make ${JOBSFLAGS} -C gcc ${libgcc_rule} \
   430                               ${repair_cc}
   431         sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
   432     else # build_libgcc
   433         core_targets=( gcc )
   434     fi   # ! build libgcc
   435     if [    "${build_libstdcxx}" = "yes"    \
   436          -a "${CT_CC_LANG_CXX}"  = "y"      \
   437        ]; then
   438         core_targets+=( target-libstdc++-v3 )
   439     fi
   440 
   441     CT_DoLog EXTRA "Building ${mode} core C compiler"
   442     CT_DoExecLog ALL make ${JOBSFLAGS} "${core_targets[@]/#/all-}"
   443 
   444     CT_DoLog EXTRA "Installing ${mode} core C compiler"
   445     CT_DoExecLog ALL make ${JOBSFLAGS} "${core_targets[@]/#/install-}"
   446 
   447     if [ "${CT_BUILD_MANUALS}" = "y" -a "${build_manuals}" = "yes" ]; then
   448         CT_DoLog EXTRA "Building the GCC manuals"
   449         CT_DoExecLog ALL make pdf html
   450         CT_DoLog EXTRA "Installing the GCC manuals"
   451         CT_DoExecLog ALL make install-{pdf,html}-gcc
   452     fi
   453 
   454     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   455     # to call the C compiler with the same, somewhat canonical name.
   456     # check whether compiler has an extension
   457     file="$( ls -1 "${prefix}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   458     [ -z "${file}" ] || ext=".${file##*.}"
   459     CT_DoExecLog ALL ln -sfv "${CT_TARGET}-gcc${ext}" "${prefix}/bin/${CT_TARGET}-cc${ext}"
   460 
   461     if [ "${CT_MULTILIB}" = "y" ]; then
   462         multilibs=( $( "${core_prefix_dir}/bin/${CT_TARGET}-gcc" -print-multi-lib   \
   463                        |tail -n +2 ) )
   464         if [ ${#multilibs[@]} -ne 0 ]; then
   465             CT_DoLog EXTRA "gcc configured with these multilibs (besides the default):"
   466             for i in "${multilibs[@]}"; do
   467                 dir="${i%%;*}"
   468                 flags="${i#*;}"
   469                 CT_DoLog EXTRA "   ${flags//@/ -}  -->  ${dir}/"
   470             done
   471         else
   472             CT_DoLog WARN "gcc configured for multilib, but none available"
   473         fi
   474     fi
   475 
   476     CT_EndStep
   477 }
   478 
   479 #------------------------------------------------------------------------------
   480 # Build final gcc
   481 do_cc() {
   482     local -a host_libstdcxx_flags
   483     local -a extra_config
   484     local -a final_LDFLAGS
   485     local tmp
   486 
   487     # If building for bare metal, nothing to be done here, the static core conpiler is enough!
   488     [ "${CT_BARE_METAL}" = "y" ] && return 0
   489 
   490     CT_DoStep INFO "Installing final compiler"
   491 
   492     mkdir -p "${CT_BUILD_DIR}/build-cc"
   493     cd "${CT_BUILD_DIR}/build-cc"
   494 
   495     CT_DoLog EXTRA "Configuring final compiler"
   496 
   497     # Enable selected languages
   498     lang_opt="c"
   499     [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"
   500     [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"
   501     [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"
   502     [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"
   503     [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"
   504     [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"
   505     CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
   506     CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
   507     CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
   508     CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
   509     lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
   510 
   511     extra_config+=("--enable-languages=${lang_opt}")
   512     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
   513         eval tmp="\${CT_ARCH_WITH_${tmp}}"
   514         if [ -n "${tmp}" ]; then
   515             extra_config+=("${tmp}")
   516         fi
   517     done
   518 
   519     [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
   520     if [ "${CT_CC_GCC_HAS_PKGVERSION_BUGURL}" = "y" ]; then
   521         extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
   522         [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
   523     fi
   524     case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
   525         y)  extra_config+=("--enable-sjlj-exceptions");;
   526         m)  ;;
   527         "") extra_config+=("--disable-sjlj-exceptions");;
   528     esac
   529     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
   530         extra_config+=("--enable-__cxa_atexit")
   531     else
   532         extra_config+=("--disable-__cxa_atexit")
   533     fi
   534     if [ -n "${CT_CC_ENABLE_CXX_FLAGS}" ]; then
   535         extra_config+=("--enable-cxx-flags=${CT_CC_ENABLE_CXX_FLAGS}")
   536     fi
   537     if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
   538         extra_config+=(--enable-libmudflap)
   539     else
   540         extra_config+=(--disable-libmudflap)
   541     fi
   542     if [ "${CT_CC_GCC_LIBGOMP}" = "y" ]; then
   543         extra_config+=(--enable-libgomp)
   544     else
   545         extra_config+=(--disable-libgomp)
   546     fi
   547     if [ "${CT_CC_GCC_LIBSSP}" = "y" ]; then
   548         extra_config+=(--enable-libssp)
   549     else
   550         extra_config+=(--disable-libssp)
   551     fi
   552 
   553     # *** WARNING ! ***
   554     # Keep this full if-else-if-elif-fi-fi block in sync
   555     # with the same block in do_cc_core, above.
   556     if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
   557         final_LDFLAGS+=("-static")
   558         host_libstdcxx_flags+=("-static-libgcc")
   559         host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++")
   560         host_libstdcxx_flags+=("-lm")
   561         # Companion libraries are build static (eg !shared), so
   562         # the libstdc++ is not pulled automatically, although it
   563         # is needed. Shoe-horn it in our LDFLAGS
   564         # Ditto libm on some Fedora boxen
   565         final_LDFLAGS+=("-lstdc++")
   566         final_LDFLAGS+=("-lm")
   567     else
   568         if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
   569             # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
   570             # build script
   571             # INFO: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
   572             #       see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
   573             host_libstdcxx_flags+=("-static-libgcc")
   574             host_libstdcxx_flags+=("-Wl,-Bstatic,-lstdc++,-Bdynamic")
   575             host_libstdcxx_flags+=("-lm")
   576         elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
   577             # When companion libraries are build static (eg !shared),
   578             # the libstdc++ is not pulled automatically, although it
   579             # is needed. Shoe-horn it in our LDFLAGS
   580             # Ditto libm on some Fedora boxen
   581             final_LDFLAGS+=("-lstdc++")
   582             final_LDFLAGS+=("-lm")
   583         fi
   584     fi
   585 
   586     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
   587         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
   588         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
   589     fi
   590     if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
   591         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
   592     fi
   593     if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
   594         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
   595         # With PPL 0.11+, also pull libpwl if needed
   596         if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
   597             host_libstdcxx_flags+=("-L${CT_COMPLIBS_DIR}/lib")
   598             host_libstdcxx_flags+=("-lpwl")
   599         fi
   600         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
   601     elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
   602         extra_config+=("--with-ppl=no")
   603         extra_config+=("--with-cloog=no")
   604     fi
   605     if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
   606         extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
   607     elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
   608         extra_config+=("--with-libelf=no")
   609     fi
   610 
   611     if [ ${#host_libstdcxx_flags[@]} -ne 0 ]; then
   612         extra_config+=("--with-host-libstdcxx=${host_libstdcxx_flags[*]}")
   613     fi
   614 
   615     if [ "${CT_THREADS}" = "none" ]; then
   616         extra_config+=("--disable-threads")
   617         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
   618             CT_Test "Disabling libgomp for no-thread gcc>=4.2" "${CT_CC_GCC_LIBGOMP}" = "Y"
   619             extra_config+=("--disable-libgomp")
   620         fi
   621     else
   622         if [ "${CT_THREADS}" = "win32" ]; then
   623             extra_config+=("--enable-threads=win32")
   624             extra_config+=("--disable-win32-registry")
   625         else
   626             extra_config+=("--enable-threads=posix")
   627         fi
   628     fi
   629 
   630     if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
   631         extra_config+=("--enable-target-optspace")
   632     fi
   633     if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
   634         extra_config+=("--disable-libstdcxx-pch")
   635     fi
   636 
   637     case "${CT_CC_GCC_LDBL_128}" in
   638         y)  extra_config+=("--with-long-double-128");;
   639         m)  ;;
   640         "") extra_config+=("--without-long-double-128");;
   641     esac
   642 
   643     if [ "${CT_CC_GCC_BUILD_ID}" = "y" ]; then
   644         extra_config+=( --enable-linker-build-id )
   645     fi
   646 
   647     case "${CT_CC_GCC_LNK_HASH_STYLE}" in
   648         "") ;;
   649         *)  extra_config+=( "--with-linker-hash-style=${CT_CC_GCC_LNK_HASH_STYLE}" );;
   650     esac
   651 
   652     if [ "${CT_CC_GCC_ENABLE_PLUGINS}" = "y" ]; then
   653         extra_config+=( --enable-plugin )
   654     fi
   655     if [ "${CT_CC_GCC_GOLD}" = "y" ]; then
   656         extra_config+=( --enable-gold )
   657     fi
   658 
   659     case "${CT_ARCH}" in
   660         mips)
   661             case "${CT_CC_GCC_mips_llsc}" in
   662                 y)  extra_config+=( --with-llsc );;
   663                 m)  ;;
   664                 *)  extra_config+=( --without-llsc );;
   665             esac
   666             case "${CT_CC_GCC_mips_synci}" in
   667                 y)  extra_config+=( --with-synci );;
   668                 m)  ;;
   669                 *)  extra_config+=( --without-synci );;
   670             esac
   671             if [ "${CT_CC_GCC_mips_plt}" ]; then
   672                 extra_config+=( --with-mips-plt )
   673             fi
   674             ;; # ARCH is mips
   675     esac
   676 
   677     [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] && extra_config+=("--disable-nls")
   678 
   679     if [ "${CT_CC_GCC_SYSTEM_ZLIB}" = "y" ]; then
   680         extra_config+=("--with-system-zlib")
   681     fi
   682 
   683     if [ "${CT_MULTILIB}" = "y" ]; then
   684         extra_config+=("--enable-multilib")
   685     else
   686         extra_config+=("--disable-multilib")
   687     fi
   688 
   689     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
   690 
   691     CT_DoExecLog CFG                                \
   692     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
   693     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
   694     LDFLAGS="${final_LDFLAGS[*]}"                   \
   695     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \
   696     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \
   697     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \
   698     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
   699         --build=${CT_BUILD}                         \
   700         --host=${CT_HOST}                           \
   701         --target=${CT_TARGET}                       \
   702         --prefix="${CT_PREFIX_DIR}"                 \
   703         ${CC_SYSROOT_ARG}                           \
   704         "${extra_config[@]}"                        \
   705         --with-local-prefix="${CT_SYSROOT_DIR}"     \
   706         --enable-c99                                \
   707         --enable-long-long                          \
   708         "${CT_CC_EXTRA_CONFIG_ARRAY[@]}"
   709 
   710     if [ "${CT_CANADIAN}" = "y" ]; then
   711         CT_DoLog EXTRA "Building libiberty"
   712         CT_DoExecLog ALL make ${JOBSFLAGS} all-build-libiberty
   713     fi
   714 
   715     CT_DoLog EXTRA "Building final compiler"
   716     CT_DoExecLog ALL make ${JOBSFLAGS} all
   717 
   718     CT_DoLog EXTRA "Installing final compiler"
   719     CT_DoExecLog ALL make ${JOBSFLAGS} install
   720 
   721     if [ "${CT_BUILD_MANUALS}" = "y" ]; then
   722         CT_DoLog EXTRA "Building the GCC manuals"
   723         CT_DoExecLog ALL make ${JOBSFLAGS} pdf html
   724         CT_DoLog EXTRA "Installing the GCC manuals"
   725         CT_DoExecLog ALL make install-{pdf,html}-gcc
   726     fi
   727 
   728     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
   729     # to call the C compiler with the same, somewhat canonical name.
   730     # check whether compiler has an extension
   731     file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
   732     [ -z "${file}" ] || ext=".${file##*.}"
   733     CT_DoExecLog ALL ln -sfv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"
   734 
   735     if [ "${CT_MULTILIB}" = "y" ]; then
   736         multilibs=( $( "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc" -print-multi-lib \
   737                        |tail -n +2 ) )
   738         if [ ${#multilibs[@]} -ne 0 ]; then
   739             CT_DoLog EXTRA "gcc configured with these multilibs (besides the default):"
   740             for i in "${multilibs[@]}"; do
   741                 dir="${i%%;*}"
   742                 flags="${i#*;}"
   743                 CT_DoLog EXTRA "   ${flags//@/ -}  -->  ${dir}/"
   744             done
   745         else
   746             CT_DoLog WARN "gcc configured for multilib, but none available"
   747         fi
   748     fi
   749 
   750     CT_EndStep
   751 }