Introduce a new EXPERIMENTAL feature: BARE_METAL.

This should ultimately llow to build bare-metal compilers, for targets that have no kernel and no C library.
Move the C library build script to their own sub-directory; introduce an empty build script for bare-metal.
Move the compiler build script to its own sub-directory.
Move the kernel build script to its own sub-directory; introduce an empty build script for bare-metal.
Update the ARM target tuples to enable bare-metal targets.
Add two ARM bare-metal samples.
Add latest Linux kernel versions.

 /trunk/scripts/build/kernel/none.sh              |   77     6    71     0 +----
 /trunk/scripts/build/cc/gcc.sh                   |   58    41    17     0 ++-
 /trunk/scripts/build/libc/none.sh                |  513     9   504     0 +-----------------------------
 /trunk/scripts/crosstool.sh                      |   17     9     8     0 +
 /trunk/scripts/functions                         |    6     4     2     0 +
 /trunk/scripts/showSamples.sh                    |    6     3     3     0
 /trunk/samples/arm-unknown-elf/crosstool.config  |  225   225     0     0 +++++++++++++
 /trunk/samples/arm-unknown-eabi/crosstool.config |  223   223     0     0 +++++++++++++
 /trunk/config/kernel/linux_headers_install.in    |   64    27    37     0 ++--
 /trunk/config/kernel.in                          |    9     8     1     0 +
 /trunk/config/toolchain.in                       |    1     1     0     0 +
 /trunk/config/cc/gcc.in                          |    3     3     0     0 +
 /trunk/config/debug/dmalloc.in                   |    1     1     0     0 +
 /trunk/config/debug/gdb.in                       |    4     3     1     0 +
 /trunk/config/debug/strace.in                    |    1     1     0     0 +
 /trunk/config/debug/duma.in                      |    1     1     0     0 +
 /trunk/config/cc.in                              |    8     8     0     0 +
 /trunk/config/target.in                          |   13    13     0     0 +
 /trunk/config/binutils.in                        |    1     1     0     0 +
 /trunk/config/gmp_mpfr.in                        |    1     1     0     0 +
 /trunk/config/libc.in                            |   17    11     6     0 +
 /trunk/arch/arm/functions                        |    3     1     2     0 -
 22 files changed, 600 insertions(+), 652 deletions(-)

1 files changed, 0 insertions, 275 deletions

diff --git a/scripts/build/cc_gcc.sh b/scripts/build/cc_gcc.sh
deleted file mode 100644
index f1f42fc..0000000
--- a/scripts/build/cc_gcc.sh
+++ /dev/null
@@ -1,275 +0,0 @@
-# This file adds the function to build the gcc C compiler
-# Copyright 2007 Yann E. MORIN
-# Licensed under the GPL v2. See COPYING in the root of this package
-
-do_print_filename() {
-    [ "${CT_CC}" = "gcc" ] || return 0
-    echo "gcc-${CT_CC_VERSION}"
-}
-
-# Download gcc
-do_cc_get() {
-    # Ah! gcc folks are kind of 'different': they store the tarballs in
-    # subdirectories of the same name! That's because gcc is such /crap/ that
-    # it is such /big/ that it needs being splitted for distribution! Sad. :-(
-    # Arrgghh! Some of those versions does not follow this convention:
-    # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
-    # subdirectory! You bastard!
-    CT_GetFile "${CT_CC_FILE}"  \
-               {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/${CT_CC_FILE}}
-}
-
-# Extract gcc
-do_cc_extract() {
-    CT_ExtractAndPatch "${CT_CC_FILE}"
-}
-
-#------------------------------------------------------------------------------
-# Core gcc pass 1
-do_cc_core_pass_1() {
-    # In case we're NPTL, build the static core gcc;
-    # in any other case, do nothing.
-    case "${CT_THREADS}" in
-        nptl)   do_cc_core mode=static build_libgcc=no;;
-        *)      ;;
-    esac
-}
-
-# Core gcc pass 2
-do_cc_core_pass_2() {
-    # In case we're NPTL, build the shared core gcc,
-    # in any other case, build the static core gcc and the target libgcc.
-    case "${CT_THREADS}" in
-        nptl)   do_cc_core mode=shared build_libgcc=yes;;
-        *)      do_cc_core mode=static build_libgcc=yes;;
-    esac
-}
-
-#------------------------------------------------------------------------------
-# Build core gcc
-# This function is used to build both the static and the shared core C conpiler,
-# with or without the target libgcc. We need to know wether:
-#  - we're building static or shared: mode=[static|shared]
-#  - we need to build libgcc or not:  build_libgcc=[yes|no]
-# Usage: do_cc_core_static mode=[static|shared] build_libgcc=[yes|no]
-do_cc_core() {
-    local mode
-    local build_libgcc
-    local core_prefix_dir
-    local extra_config
-
-    eval $1
-    eval $2
-    CT_TestOrAbort "Internal Error: 'mode' must either 'static' or 'shared', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared"
-    CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
-    # In normal conditions, ( "${mode}" = "shared" ) implies
-    # ( "${build_libgcc}" = "yes" ), but I won't check for that
-
-    mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
-    cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
-
-    CT_DoStep INFO "Installing ${mode} core C compiler"
-    case "${mode}" in
-        static)
-            core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
-            extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
-            ;;
-        shared)
-            core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
-            extra_config="${extra_config} --enable-shared"
-            ;;
-    esac
-
-    CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
-    CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
-    CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
-
-    CT_DoLog EXTRA "Configuring ${mode} core C compiler"
-
-    extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
-    extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
-    extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
-    extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
-    extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
-    extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
-    [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
-    if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
-        extra_config="${extra_config} --enable-__cxa_atexit"
-    else
-        extra_config="${extra_config} --disable-__cxa_atexit"
-    fi
-
-    CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
-
-    # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
-    CC_FOR_BUILD="${CT_CC_NATIVE}"                  \
-    CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
-    CT_DoExecLog ALL                                \
-    "${CT_SRC_DIR}/${CT_CC_FILE}/configure"         \
-        ${CT_CANADIAN_OPT}                          \
-        --host=${CT_HOST}                           \
-        --target=${CT_TARGET}                       \
-        --prefix="${core_prefix_dir}"               \
-        --with-local-prefix="${CT_SYSROOT_DIR}"     \
-        --disable-multilib                          \
-        ${CC_CORE_SYSROOT_ARG}                      \
-        ${extra_config}                             \
-        --disable-nls                               \
-        --enable-symvers=gnu                        \
-        --enable-languages=c                        \
-        --enable-target-optspace                    \
-        ${CT_CC_CORE_EXTRA_CONFIG}
-
-    if [ "${build_libgcc}" = "yes" ]; then
-        # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
-        # gcc/config/t-libunwind so -lc is removed from the link for
-        # libgcc_s.so, as we do not have a target -lc yet.
-        # This is not as ugly as it appears to be ;-) All symbols get resolved
-        # during the glibc build, and we provide a proper libgcc_s.so for the
-        # cross toolchain during the final gcc build.
-        #
-        # As we cannot modify the source tree, nor override SHLIB_LC itself
-        # during configure or make, we have to edit the resultant
-        # gcc/libgcc.mk itself to remove -lc from the link.
-        # This causes us to have to jump through some hoops...
-        #
-        # To produce libgcc.mk to edit we firstly require libiberty.a,
-        # so we configure then build it.
-        # Next we have to configure gcc, create libgcc.mk then edit it...
-        # So much easier if we just edit the source tree, but hey...
-        if [ ! -f "${CT_SRC_DIR}/${CT_CC_FILE}/gcc/BASE-VER" ]; then
-            CT_DoExecLog ALL make configure-libiberty
-            CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
-            CT_DoExecLog ALL make configure-gcc configure-libcpp
-            CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
-        else
-            CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
-            CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
-        fi
-        # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
-        if [ -d "${CT_SRC_DIR}/${CT_CC_FILE}/libdecnumber" ]; then
-            CT_DoExecLog ALL make configure-libdecnumber
-            CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
-        fi
-
-        # Starting with GCC 4.3, libgcc.mk is no longer built,
-        # and libgcc.mvars is used instead.
-
-        gcc_version_major=$(echo ${CT_CC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
-        gcc_version_minor=$(echo ${CT_CC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
-
-        if [    ${gcc_version_major} -eq 4 -a ${gcc_version_minor} -ge 3    \
-             -o ${gcc_version_major} -gt 4                                  ]; then
-            libgcc_rule="libgcc.mvars"
-            build_rules="all-gcc all-target-libgcc"
-            install_rules="install-gcc install-target-libgcc"
-        else
-            libgcc_rule="libgcc.mk"
-            build_rules="all-gcc"
-            install_rules="install-gcc"
-        fi
-
-        CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
-        sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
-    else # build_libgcc
-            build_rules="all-gcc"
-            install_rules="install-gcc"
-    fi   # ! build libgcc
-
-    if [ "${CT_CANADIAN}" = "y" ]; then
-        CT_DoLog EXTRA "Building libiberty"
-        CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
-    fi
-
-    CT_DoLog EXTRA "Building ${mode} core C compiler"
-    CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
-
-    CT_DoLog EXTRA "Installing ${mode} core C compiler"
-    CT_DoExecLog ALL make ${install_rules}
-
-    CT_EndStep
-}
-
-#------------------------------------------------------------------------------
-# Build final gcc
-do_cc() {
-    CT_DoStep INFO "Installing final compiler"
-
-    mkdir -p "${CT_BUILD_DIR}/build-cc"
-    cd "${CT_BUILD_DIR}/build-cc"
-
-    CT_DoLog EXTRA "Configuring final compiler"
-
-    # Enable selected languages
-    lang_opt="c"
-    [ "${CT_CC_LANG_CXX}" = "y"      ] && lang_opt="${lang_opt},c++"
-    [ "${CT_CC_LANG_FORTRAN}" = "y"  ] && lang_opt="${lang_opt},fortran"
-    [ "${CT_CC_LANG_ADA}" = "y"      ] && lang_opt="${lang_opt},ada"
-    [ "${CT_CC_LANG_JAVA}" = "y"     ] && lang_opt="${lang_opt},java"
-    [ "${CT_CC_LANG_OBJC}" = "y"     ] && lang_opt="${lang_opt},objc"
-    [ "${CT_CC_LANG_OBJCXX}" = "y"   ] && lang_opt="${lang_opt},obj-c++"
-    CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
-    CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
-    CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
-    CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
-    lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
-
-    extra_config="--enable-languages=${lang_opt}"
-    extra_config="${extra_config} --disable-multilib"
-    extra_config="${extra_config} ${CT_ARCH_WITH_ARCH} ${CT_ARCH_WITH_ABI} ${CT_ARCH_WITH_CPU} ${CT_ARCH_WITH_TUNE} ${CT_ARCH_WITH_FPU} ${CT_ARCH_WITH_FLOAT}"
-    [ "${CT_SHARED_LIBS}" = "y" ]     || extra_config="${extra_config} --disable-shared"
-    [ "${CT_GMP_MPFR}" = "y" ]                      && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
-    [ -n "${CT_CC_PKGVERSION}" ]                    && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"
-    [ -n "${CT_CC_BUGURL}" ]                        && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"
-    [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ]        && extra_config="${extra_config} --enable-sjlj-exceptions"
-    [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ]   && extra_config="${extra_config} --disable-sjlj-exceptions"
-    if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
-        extra_config="${extra_config} --enable-__cxa_atexit"
-    else
-        extra_config="${extra_config} --disable-__cxa_atexit"
-    fi
-
-    CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
-
-    # --enable-symvers=gnu really only needed for sh4 to work around a
-    # detection problem only matters for gcc-3.2.x and later, I think.
-    # --disable-nls to work around crash bug on ppc405, but also because
-    # embedded systems don't really need message catalogs...
-    CC_FOR_BUILD="${CT_CC_NATIVE}"              \
-    CFLAGS="${CT_CFLAGS_FOR_HOST}"              \
-    CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"     \
-    CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"   \
-    LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}"   \
-    CT_DoExecLog ALL                            \
-    "${CT_SRC_DIR}/${CT_CC_FILE}/configure"     \
-        ${CT_CANADIAN_OPT}                      \
-        --target=${CT_TARGET} --host=${CT_HOST} \
-        --prefix="${CT_PREFIX_DIR}"             \
-        ${CC_SYSROOT_ARG}                       \
-        ${extra_config}                         \
-        --with-local-prefix="${CT_SYSROOT_DIR}" \
-        --disable-nls                           \
-        --enable-threads=posix                  \
-        --enable-symvers=gnu                    \
-        --enable-c99                            \
-        --enable-long-long                      \
-        --enable-target-optspace                \
-        ${CT_CC_EXTRA_CONFIG}
-
-    if [ "${CT_CANADIAN}" = "y" ]; then
-        CT_DoLog EXTRA "Building libiberty"
-        CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
-    fi
-
-    CT_DoLog EXTRA "Building final compiler"
-    CT_DoExecLog ALL make ${PARALLELMFLAGS} all
-
-    CT_DoLog EXTRA "Installing final compiler"
-    CT_DoExecLog ALL make install
-
-    # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
-    # to call the C compiler with the same, somewhat canonical name.
-    ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-{g,}cc 2>&1 |CT_DoLog ALL
-
-    CT_EndStep
-}