diff -r 000000000000 -r 45ddf096def1 scripts/build/libc/uClibc.sh --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/build/libc/uClibc.sh Thu Oct 23 13:45:48 2008 +0000 @@ -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}" +}