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, 313 deletions

diff --git a/scripts/build/libc_uClibc.sh b/scripts/build/libc_uClibc.sh
deleted file mode 100644
index 85f5997..0000000
--- a/scripts/build/libc_uClibc.sh
+++ /dev/null
@@ -1,313 +0,0 @@
-# This file declares functions to install the uClibc C library
-# Copyright 2007 Yann E. MORIN
-# Licensed under the GPL v2. See COPYING in the root of this package
-
-do_print_filename() {
-    [ "${CT_LIBC}" = "uClibc" ] || return 0
-    echo "uClibc-${CT_LIBC_VERSION}"
-    [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && echo "uClibc-locale-030818" || true
-}
-
-# Download uClibc
-do_libc_get() {
-    libc_src="http://www.uclibc.org/downloads
-              http://www.uclibc.org/downloads/snapshots
-              http://www.uclibc.org/downloads/old-releases"
-    # For uClibc, we have almost every thing: releases, and snapshots
-    # for the last month or so. We'll have to deal with svn revisions
-    # later...
-    CT_GetFile "${CT_LIBC_FILE}" ${libc_src}
-    # uClibc locales
-    [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_GetFile "uClibc-locale-030818" ${libc_src} || true
-
-    return 0
-}
-
-# Extract uClibc
-do_libc_extract() {
-    CT_ExtractAndPatch "${CT_LIBC_FILE}"
-    # uClibc locales
-    [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_ExtractAndPatch "uClibc-locale-030818" || true
-
-    return 0
-}
-
-# Check that uClibc has been previously configured
-do_libc_check_config() {
-    CT_DoStep INFO "Checking C library configuration"
-
-    CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}"
-
-    if egrep '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then
-        CT_DoLog WARN "Your uClibc version refers to the kernel _sources_, which is bad."
-        CT_DoLog WARN "I can't guarantee that our little hack will work. Please try to upgrade."
-    fi
-
-    CT_DoLog EXTRA "Munging uClibc configuration"
-    mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_BUILD_DIR}/uClibc.config"
-
-    CT_EndStep
-}
-
-# This functions installs uClibc's headers
-do_libc_headers() {
-    # Only need to install bootstrap uClibc headers for gcc-3.0 and above?  Or maybe just gcc-3.3 and above?
-    # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
-    grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0
-
-    CT_DoStep INFO "Installing C library headers"
-
-    mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
-    cd "${CT_BUILD_DIR}/build-libc-headers"
-
-    # Simply copy files until uClibc has the ablity to build out-of-tree
-    CT_DoLog EXTRA "Copying sources to build dir"
-    { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
-
-    # Retrieve the config file
-    cp "${CT_BUILD_DIR}/uClibc.config" .config
-
-    # uClibc uses the CROSS environment variable as a prefix to the
-    # compiler tools to use.  Setting it to the empty string forces
-    # use of the native build host tools, which we need at this
-    # stage, as we don't have target tools yet.
-    CT_DoLog EXTRA "Applying configuration"
-    CT_DoYes "" |CT_DoExecLog ALL make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig
-
-    CT_DoLog EXTRA "Building headers"
-    CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers
-
-    CT_DoLog EXTRA "Installing headers"
-    CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev
-
-    CT_EndStep
-}
-
-# Build and install start files
-do_libc_start_files() {
-    :
-}
-
-# This function build and install the full uClibc
-do_libc() {
-    CT_DoStep INFO "Installing C library"
-
-    mkdir -p "${CT_BUILD_DIR}/build-libc"
-    cd "${CT_BUILD_DIR}/build-libc"
-
-    # Simply copy files until uClibc has the ablity to build out-of-tree
-    CT_DoLog EXTRA "Copying sources to build dir"
-    { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
-
-    # Retrieve the config file
-    cp "${CT_BUILD_DIR}/uClibc.config" .config
-
-    # uClibc uses the CROSS environment variable as a prefix to the compiler
-    # tools to use.  The newly built tools should be in our path, so we need
-    # only give the correct name for them.
-    # Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,
-    # depending  on the configuration of the library. That is, they are tailored
-    # to best fit the target. So it is useless and seems to be a bad thing to
-    # use LIBC_EXTRA_CFLAGS here.
-    CT_DoLog EXTRA "Applying configuration"
-    CT_DoYes "" |CT_DoExecLog ALL               \
-                 make CROSS=${CT_TARGET}-       \
-                 PREFIX="${CT_SYSROOT_DIR}/"    \
-                 oldconfig
-
-    # We do _not_ want to strip anything for now, in case we specifically
-    # asked for a debug toolchain, thus the STRIPTOOL= assignment
-    CT_DoLog EXTRA "Building C library"
-    CT_DoExecLog ALL                    \
-    make CROSS=${CT_TARGET}-            \
-         PREFIX="${CT_SYSROOT_DIR}/"    \
-         STRIPTOOL=true                 \
-         ${CT_LIBC_UCLIBC_VERBOSITY}    \
-         all
-
-    # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want
-    # to install headers in $SYSROOT/include, thus making only install_runtime.
-    # Plus, the headers were previously installed earlier with install_dev, so
-    # all should be well. Unfortunately, the install_dev target does not install
-    # crti.o and consorts... :-( So reverting to target 'install'.
-    # Note: PARALLELMFLAGS is not usefull for installation.
-    # We do _not_ want to strip anything for now, in case we specifically
-    # asked for a debug toolchain, thus the STRIPTOOL= assignment
-    CT_DoLog EXTRA "Installing C library"
-    CT_DoExecLog ALL                    \
-    make CROSS=${CT_TARGET}-            \
-         PREFIX="${CT_SYSROOT_DIR}/"    \
-         STRIPTOOL=true                 \
-         ${CT_LIBC_UCLIBC_VERBOSITY}    \
-         install
-
-    CT_EndStep
-}
-
-# This function is used to install those components needing the final C compiler
-do_libc_finish() {
-    :
-}
-
-# Initialises the .config file to sensible values
-# $1: original file
-# $2: munged file
-mungeuClibcConfig() {
-    src_config_file="$1"
-    dst_config_file="$2"
-    munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"
-
-    # Start with a fresh file
-    rm -f "${munge_file}"
-    touch "${munge_file}"
-
-    # Hack our target in the config file.
-    # Also remove stripping: its the responsibility of the
-    # firmware builder to strip or not.
-    cat >>"${munge_file}" <<-ENDSED
-s/^(TARGET_.*)=y$/# \\1 is not set/
-s/^# TARGET_${CT_KERNEL_ARCH} is not set/TARGET_${CT_KERNEL_ARCH}=y/
-s/^TARGET_ARCH=".*"/TARGET_ARCH="${CT_KERNEL_ARCH}"/
-s/.*(DOSTRIP).*/# \\1 is not set/
-ENDSED
-
-    # Ah. We may one day need architecture-specific handler here...
-    # Hack the ARM {E,O}ABI into the config file
-    if [ "${CT_ARCH_ARM_EABI}" = "y" ]; then
-        cat >>"${munge_file}" <<-ENDSED
-s/.*(CONFIG_ARM_OABI).*/# \\1 is not set/
-s/.*(CONFIG_ARM_EABI).*/\\1=y/
-ENDSED
-    else
-        cat >>"${munge_file}" <<-ENDSED
-s/.*(CONFIG_ARM_OABI).*/\\1=y/
-s/.*(CONFIG_ARM_EABI).*/# \\1 is not set/
-ENDSED
-    fi
-
-    # Accomodate for old and new uClibc versions, where the
-    # way to select between big/little endian has changed
-    case "${CT_ARCH_BE},${CT_ARCH_LE}" in
-        y,) cat >>"${munge_file}" <<-ENDSED
-s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/
-s/.*(ARCH_BIG_ENDIAN).*/\\1=y/
-s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/
-s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/
-ENDSED
-        ;;
-        ,y) cat >>"${munge_file}" <<-ENDSED
-s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/
-s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/
-s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/
-s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/
-ENDSED
-        ;;
-    esac
-
-    # Accomodate for old and new uClibc version, where the
-    # way to select between hard/soft float has changed
-    case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
-        y,) cat >>"${munge_file}" <<-ENDSED
-s/^[^_]*(HAS_FPU).*/\\1=y/
-s/.*(UCLIBC_HAS_FPU).*/\\1=y/
-ENDSED
-            ;;
-        ,y) cat >>"${munge_file}" <<-ENDSED
-s/^[^_]*(HAS_FPU).*/\\# \\1 is not set/
-s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/
-ENDSED
-            ;;
-    esac
-
-    # Change paths to work with crosstool-NG
-    # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev
-    #  " we just want the kernel headers, not the whole kernel source ...
-    #  " so people may need to update their paths slightly
-    quoted_kernel_source=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\/,g;')
-    quoted_headers_dir=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/,\\/,g;')
-    # CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line
-    # DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}
-    # Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and
-    # newer versions use KERNEL_HEADERS (which is right). See:
-    cat >>"${munge_file}" <<-ENDSED
-s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/
-s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/
-s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/
-s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/
-s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/
-s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/
-ENDSED
-
-    if [ "${CT_USE_PIPES}" = "y" ]; then
-        if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then
-            # Good, there is special provision for such things as -pipe!
-            cat >>"${munge_file}" <<-ENDSED
-s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/
-ENDSED
-        else
-            # Hack our -pipe into WARNINGS, which will be internally incorporated to
-            # CFLAGS. This a dirty hack, but yet needed
-            cat >> "${munge_file}" <<-ENDSED
-s/^(WARNINGS=".*)"$/\\1 -pipe"/
-ENDSED
-        fi
-    fi
-
-    # Force on options needed for C++ if we'll be making a C++ compiler.
-    # Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing
-    # entirely if LOCALE is not set.  If LOCALE was already set, we'll
-    # assume the user has already made all the appropriate generation
-    # arrangements.  Note that having the uClibc Makefile download the
-    # pregenerated locales is not compatible with crosstool; besides,
-    # crosstool downloads them as part of getandpatch.sh.
-    if [ "${CT_CC_LANG_CXX}" = "y" ]; then
-        cat >>"${munge_file}" <<-ENDSED
-s/^# DO_C99_MATH is not set/DO_C99_MATH=y/
-s/^# UCLIBC_CTOR_DTOR is not set/UCLIBC_CTOR_DTOR=y/
-# Add these three lines when doing C++?
-s/^# UCLIBC_HAS_WCHAR is not set/UCLIBC_HAS_WCHAR=y/
-#s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\nUCLIBC_PREGENERATED_LOCALE_DATA=y\\n\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\n\\# UCLIBC_HAS_XLOCALE is not set/
-s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/
-ENDSED
-    fi
-
-    # Always build the libpthread_db
-    cat >>"${munge_file}" <<-ENDSED
-s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
-ENDSED
-
-    # Force on debug options if asked for
-    case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in
-      0)
-        cat >>"${munge_file}" <<-ENDSED
-s/^DODEBUG=y/# DODEBUG is not set/
-s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
-s/^DOASSERTS=y/# DOASSERTS is not set/
-s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
-s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
-s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
-ENDSED
-        ;;
-      1)
-        cat >>"${munge_file}" <<-ENDSED
-s/^# DODEBUG is not set.*/DODEBUG=y/
-s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
-s/^DOASSERTS=y/# DOASSERTS is not set/
-s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
-s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
-s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
-ENDSED
-        ;;
-      2)
-        cat >>"${munge_file}" <<-ENDSED
-s/^# DODEBUG is not set.*/DODEBUG=y/
-s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/
-s/^# DOASSERTS is not set.*/DOASSERTS=y/
-s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/
-s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/
-s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/
-ENDSED
-        ;;
-    esac
-    sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"
-}