yann@850: # This file adds the function to build the gcc C compiler
yann@850: # Copyright 2007 Yann E. MORIN
yann@850: # Licensed under the GPL v2. See COPYING in the root of this package
yann@850: 
yann@850: # Download gcc
yann@850: do_cc_get() {
yann@850:     # Ah! gcc folks are kind of 'different': they store the tarballs in
yann@850:     # subdirectories of the same name! That's because gcc is such /crap/ that
yann@850:     # it is such /big/ that it needs being splitted for distribution! Sad. :-(
yann@850:     # Arrgghh! Some of those versions does not follow this convention:
yann@850:     # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
yann@850:     # subdirectory! You bastard!
yann@1389:     CT_GetFile "gcc-${CT_CC_VERSION}"                                                       \
yann@1389:                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}}         \
yann@1389:                ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION} \
yann@1389:                ftp://ftp.uvsq.fr/pub/gcc/snapshots/${CT_CC_VERSION}
yann@1268: 
yann@1129:     # Starting with GCC 4.3, ecj is used for Java, and will only be
yann@1129:     # built if the configure script finds ecj.jar at the top of the
yann@1129:     # GCC source tree, which will not be there unless we get it and
yann@1129:     # put it there ourselves
yann@1129:     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
yann@1129:         CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java   \
yann@1129:                                    ftp://sourceware.org/pub/java
yann@1129:     fi
yann@850: }
yann@850: 
yann@850: # Extract gcc
yann@850: do_cc_extract() {
yann@1389:     CT_Extract "gcc-${CT_CC_VERSION}"
yann@1389:     CT_Patch "gcc-${CT_CC_VERSION}"
yann@1268: 
yann@1129:     # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
yann@1389:     if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y"                     \
yann@1389:          -a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"   \
yann@1259:        ]; then
yann@1389:         CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
yann@1129:     fi
yann@850: }
yann@850: 
yann@850: #------------------------------------------------------------------------------
yann@850: # Core gcc pass 1
yann@850: do_cc_core_pass_1() {
yann@1425:     # If we're building a canadian compiler no use to build the CC
yann@1425:     # core compiler, we're not using it
yann@1425:     [ -n "${CT_CANADIAN}" ] && return 0
yann@1425: 
yann@850:     # If we're building for bare metal, build the static core gcc,
yann@850:     # with libgcc.
yann@850:     # In case we're not bare metal, and we're NPTL, build the static core gcc.
yann@850:     # In any other case, do nothing.
yann@850:     case "${CT_BARE_METAL},${CT_THREADS}" in
yann@850:         y,*)    do_cc_core mode=baremetal build_libgcc=yes;;
yann@850:         ,nptl)  do_cc_core mode=static build_libgcc=no;;
yann@850:         *)      ;;
yann@850:     esac
yann@850: }
yann@850: 
yann@850: # Core gcc pass 2
yann@850: do_cc_core_pass_2() {
yann@1425:     # If we're building a canadian compiler no use to build the CC
yann@1425:     # core compiler, we're not using it
yann@1425:     [ -n "${CT_CANADIAN}" ] && return 0
yann@1425: 
yann@850:     # In case we're building for bare metal, do nothing, we already have
yann@850:     # our compiler.
yann@892:     # In case we're NPTL, build the shared core gcc and the target libgcc.
yann@892:     # In any other case, build the static core gcc and, if using gcc-4.3+,
yann@892:     # also build the target libgcc.
yann@850:     case "${CT_BARE_METAL},${CT_THREADS}" in
yann@850:         y,*)    ;;
yann@892:         ,nptl)
yann@892:             do_cc_core mode=shared build_libgcc=yes
yann@892:             ;;
yann@892:         *)  if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
yann@892:                 do_cc_core mode=static build_libgcc=yes
yann@892:             else
yann@892:                 do_cc_core mode=static build_libgcc=no
yann@892:             fi
yann@892:             ;;
yann@850:     esac
yann@850: }
yann@850: 
yann@850: #------------------------------------------------------------------------------
yann@850: # Build core gcc
yann@850: # This function is used to build both the static and the shared core C conpiler,
yann@850: # with or without the target libgcc. We need to know wether:
yann@850: #  - we're building static, shared or bare metal: mode=[static|shared|baremetal]
yann@850: #  - we need to build libgcc or not             : build_libgcc=[yes|no]
yann@850: # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
yann@850: do_cc_core() {
yann@850:     local mode
yann@850:     local build_libgcc
yann@850:     local core_prefix_dir
yann@1107:     local lang_opt
yann@1479:     local tmp
yann@1479:     local -a extra_config
yann@1892:     local core_LDFLAGS
yann@850: 
yann@850:     eval $1
yann@850:     eval $2
yann@850:     CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
yann@850:     CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
yann@850:     # In normal conditions, ( "${mode}" = "shared" ) implies
yann@850:     # ( "${build_libgcc}" = "yes" ), but I won't check for that
yann@850: 
yann@1107:     CT_DoStep INFO "Installing ${mode} core C compiler"
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
yann@850:     cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
yann@850: 
yann@1107:     lang_opt=c
yann@850:     case "${mode}" in
yann@850:         static)
yann@850:             core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
yann@1479:             extra_config+=("--with-newlib")
yann@1479:             extra_config+=("--enable-threads=no")
yann@1479:             extra_config+=("--disable-shared")
yann@850:             copy_headers=y
yann@850:             ;;
yann@850:         shared)
yann@850:             core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
yann@1479:             extra_config+=("--enable-shared")
yann@850:             copy_headers=y
yann@850:             ;;
yann@850:         baremetal)
yann@850:             core_prefix_dir="${CT_PREFIX_DIR}"
yann@1479:             extra_config+=("--with-newlib")
yann@1479:             extra_config+=("--enable-threads=no")
yann@1479:             extra_config+=("--disable-shared")
yann@1107:             [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
yann@850:             copy_headers=n
yann@850:             ;;
yann@850:     esac
yann@850: 
yann@850:     if [ "${copy_headers}" = "y" ]; then
yann@850:         CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
yann@850:         CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
yann@850:         CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
yann@850:     fi
yann@850: 
yann@850:     CT_DoLog EXTRA "Configuring ${mode} core C compiler"
yann@850: 
yann@1479:     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
yann@1479:         eval tmp="\${CT_ARCH_WITH_${tmp}}"
yann@1479:         if [ -n "${tmp}" ]; then
yann@1479:             extra_config+=("${tmp}")
yann@1479:         fi
yann@1479:     done
yann@850:     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
yann@1479:         extra_config+=("--enable-__cxa_atexit")
yann@850:     else
yann@1479:         extra_config+=("--disable-__cxa_atexit")
yann@850:     fi
yann@850: 
yann@1892:     # When companion libraries are build static (eg !shared),
yann@1892:     # the libstdc++ is not pulled automatically, although it
yann@1892:     # is needed. Shoe-horn it in our LDFLAGS
yann@1893:     if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
yann@1892:         core_LDFLAGS='-lstdc++'
yann@1892:     fi
yann@1893:     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
yann@1893:         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
yann@1893:     fi
yann@1893:     if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
yann@1893:         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
yann@1893:     fi
yann@1893: 
yann@1893:     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
yann@1892: 
yann@850:     # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
yann@1041:     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
yann@850:     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
yann@1892:     LDFLAGS="${core_LDFLAGS}"                       \
yann@850:     CT_DoExecLog ALL                                \
yann@1389:     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
yann@1041:         --build=${CT_BUILD}                         \
yann@850:         --host=${CT_HOST}                           \
yann@850:         --target=${CT_TARGET}                       \
yann@850:         --prefix="${core_prefix_dir}"               \
yann@850:         --with-local-prefix="${CT_SYSROOT_DIR}"     \
yann@850:         --disable-multilib                          \
yann@850:         ${CC_CORE_SYSROOT_ARG}                      \
yann@1479:         "${extra_config[@]}"                        \
yann@850:         --disable-nls                               \
yann@850:         --enable-symvers=gnu                        \
yann@1107:         --enable-languages="${lang_opt}"            \
yann@850:         --enable-target-optspace                    \
yann@850:         ${CT_CC_CORE_EXTRA_CONFIG}
yann@850: 
yann@850:     if [ "${build_libgcc}" = "yes" ]; then
yann@850:         # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
yann@850:         # gcc/config/t-libunwind so -lc is removed from the link for
yann@850:         # libgcc_s.so, as we do not have a target -lc yet.
yann@850:         # This is not as ugly as it appears to be ;-) All symbols get resolved
yann@850:         # during the glibc build, and we provide a proper libgcc_s.so for the
yann@850:         # cross toolchain during the final gcc build.
yann@850:         #
yann@850:         # As we cannot modify the source tree, nor override SHLIB_LC itself
yann@850:         # during configure or make, we have to edit the resultant
yann@850:         # gcc/libgcc.mk itself to remove -lc from the link.
yann@850:         # This causes us to have to jump through some hoops...
yann@850:         #
yann@850:         # To produce libgcc.mk to edit we firstly require libiberty.a,
yann@850:         # so we configure then build it.
yann@850:         # Next we have to configure gcc, create libgcc.mk then edit it...
yann@850:         # So much easier if we just edit the source tree, but hey...
yann@1389:         if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
yann@850:             CT_DoExecLog ALL make configure-libiberty
yann@850:             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
yann@850:             CT_DoExecLog ALL make configure-gcc configure-libcpp
yann@850:             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
yann@850:         else
yann@850:             CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
yann@850:             CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
yann@850:         fi
yann@850:         # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
yann@1389:         if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
yann@850:             CT_DoExecLog ALL make configure-libdecnumber
yann@850:             CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
yann@850:         fi
yann@850: 
yann@850:         # Starting with GCC 4.3, libgcc.mk is no longer built,
yann@850:         # and libgcc.mvars is used instead.
yann@850: 
yann@892:         if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
yann@850:             libgcc_rule="libgcc.mvars"
yann@850:             build_rules="all-gcc all-target-libgcc"
yann@850:             install_rules="install-gcc install-target-libgcc"
yann@850:         else
yann@850:             libgcc_rule="libgcc.mk"
yann@850:             build_rules="all-gcc"
yann@850:             install_rules="install-gcc"
yann@850:         fi
yann@850: 
yann@850:         CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
yann@850:         sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
yann@850:     else # build_libgcc
yann@850:             build_rules="all-gcc"
yann@850:             install_rules="install-gcc"
yann@850:     fi   # ! build libgcc
yann@850: 
yann@850:     if [ "${CT_CANADIAN}" = "y" ]; then
yann@850:         CT_DoLog EXTRA "Building libiberty"
yann@850:         CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
yann@850:     fi
yann@850: 
yann@850:     CT_DoLog EXTRA "Building ${mode} core C compiler"
yann@850:     CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing ${mode} core C compiler"
yann@850:     CT_DoExecLog ALL make ${install_rules}
yann@850: 
yann@1269:     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
yann@1269:     # to call the C compiler with the same, somewhat canonical name.
yann@1269:     CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${core_prefix_dir}/bin/${CT_TARGET}"-cc
yann@1269: 
yann@850:     CT_EndStep
yann@850: }
yann@850: 
yann@850: #------------------------------------------------------------------------------
yann@850: # Build final gcc
yann@850: do_cc() {
yann@1479:     local -a extra_config
yann@1479:     local tmp
yann@1892:     local final_LDFLAGS
yann@1479: 
yann@850:     # If building for bare metal, nothing to be done here, the static core conpiler is enough!
yann@850:     [ "${CT_BARE_METAL}" = "y" ] && return 0
yann@850: 
yann@850:     CT_DoStep INFO "Installing final compiler"
yann@850: 
yann@850:     mkdir -p "${CT_BUILD_DIR}/build-cc"
yann@850:     cd "${CT_BUILD_DIR}/build-cc"
yann@850: 
yann@850:     CT_DoLog EXTRA "Configuring final compiler"
yann@850: 
yann@850:     # Enable selected languages
yann@850:     lang_opt="c"
yann@850:     [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"
yann@850:     [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"
yann@850:     [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"
yann@850:     [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"
yann@850:     [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"
yann@850:     [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"
yann@850:     CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
yann@850:     CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
yann@850:     CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
yann@850:     CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
yann@850:     lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
yann@850: 
yann@1479:     extra_config+=("--enable-languages=${lang_opt}")
yann@1479:     extra_config+=("--disable-multilib")
yann@1479:     for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
yann@1479:         eval tmp="\${CT_ARCH_WITH_${tmp}}"
yann@1479:         if [ -n "${tmp}" ]; then
yann@1479:             extra_config+=("${tmp}")
yann@1479:         fi
yann@1479:     done
yann@1479: 
yann@1479:     [ "${CT_SHARED_LIBS}" = "y" ]                   || extra_config+=("--disable-shared")
yann@1479:     [ -n "${CT_CC_PKGVERSION}" ]                    && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
yann@1479:     [ -n "${CT_CC_BUGURL}" ]                        && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
yann@1479:     [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ]        && extra_config+=("--enable-sjlj-exceptions")
yann@1479:     [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ]   && extra_config+=("--disable-sjlj-exceptions")
yann@850:     if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
yann@1479:         extra_config+=("--enable-__cxa_atexit")
yann@850:     else
yann@1479:         extra_config+=("--disable-__cxa_atexit")
yann@850:     fi
yann@1484:     if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
yann@1484:         extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
yann@1484:     fi
yann@1893: 
yann@1893:     # When companion libraries are build static (eg !shared),
yann@1893:     # the libstdc++ is not pulled automatically, although it
yann@1893:     # is needed. Shoe-horn it in our LDFLAGS
yann@1893:     if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
yann@1893:         final_LDFLAGS='-lstdc++'
yann@1893:     fi
lacombar@1880:     if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
yann@1893:         extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
yann@1848:     fi
lacombar@1880:     if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
yann@1893:         extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
yann@1893:         extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
yann@1848:     fi
yann@850: 
lacombar@1881:     if [ "${CT_THREADS}" = "none" ]; then
lacombar@1881:         extra_config+=("--disable-threads")
lacombar@1881:         if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
lacombar@1881:             extra_config+=("--disable-libgomp")
lacombar@1881:         fi
lacombar@1881:     else
lacombar@1881:         extra_config+=("--enable-threads=posix")
lacombar@1881:     fi
lacombar@1881: 
yann@1479:     CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
yann@850: 
yann@850:     # --enable-symvers=gnu really only needed for sh4 to work around a
yann@850:     # detection problem only matters for gcc-3.2.x and later, I think.
yann@850:     # --disable-nls to work around crash bug on ppc405, but also because
yann@850:     # embedded systems don't really need message catalogs...
yann@1122:     CC_FOR_BUILD="${CT_BUILD}-gcc"                  \
yann@1122:     CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
yann@1892:     LDFLAGS="${final_LDFLAGS}"                      \
yann@1122:     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"         \
yann@1122:     CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"       \
yann@1122:     LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"       \
yann@1122:     CT_DoExecLog ALL                                \
yann@1389:     "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure"  \
yann@1122:         --build=${CT_BUILD}                         \
yann@1122:         --host=${CT_HOST}                           \
yann@1122:         --target=${CT_TARGET}                       \
yann@1122:         --prefix="${CT_PREFIX_DIR}"                 \
yann@1122:         ${CC_SYSROOT_ARG}                           \
yann@1479:         "${extra_config[@]}"                        \
yann@1122:         --with-local-prefix="${CT_SYSROOT_DIR}"     \
yann@1122:         --disable-nls                               \
yann@1122:         --enable-symvers=gnu                        \
yann@1122:         --enable-c99                                \
yann@1122:         --enable-long-long                          \
yann@1122:         --enable-target-optspace                    \
yann@850:         ${CT_CC_EXTRA_CONFIG}
yann@850: 
yann@850:     if [ "${CT_CANADIAN}" = "y" ]; then
yann@850:         CT_DoLog EXTRA "Building libiberty"
yann@850:         CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
yann@850:     fi
yann@850: 
yann@850:     CT_DoLog EXTRA "Building final compiler"
yann@850:     CT_DoExecLog ALL make ${PARALLELMFLAGS} all
yann@850: 
yann@850:     CT_DoLog EXTRA "Installing final compiler"
yann@850:     CT_DoExecLog ALL make install
yann@850: 
yann@850:     # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
yann@850:     # to call the C compiler with the same, somewhat canonical name.
yann@1007:     CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc
yann@850: 
yann@850:     CT_EndStep
yann@850: }