summaryrefslogtreecommitdiff
path: root/scripts/build/libc/uClibc.sh
diff options
context:
space:
mode:
authorYann E. MORIN" <yann.morin.1998@anciens.enib.fr>2008-09-14 16:21:07 (GMT)
committerYann E. MORIN" <yann.morin.1998@anciens.enib.fr>2008-09-14 16:21:07 (GMT)
commit799672a6414c7056d24213041bb3f0a12e9a9a66 (patch)
treecc77f2de5f5eff2d68c091b929145d5d07b0b9f9 /scripts/build/libc/uClibc.sh
parent21418e80d0c225705aace24992845ff20276e14e (diff)
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(-)
Diffstat (limited to 'scripts/build/libc/uClibc.sh')
-rw-r--r--scripts/build/libc/uClibc.sh313
1 files changed, 313 insertions, 0 deletions
diff --git a/scripts/build/libc/uClibc.sh b/scripts/build/libc/uClibc.sh
new file mode 100644
index 0000000..85f5997
--- /dev/null
+++ b/scripts/build/libc/uClibc.sh
@@ -0,0 +1,313 @@
+# 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}"
+}