diff -r 000000000000 -r eeea35fbf182 scripts/build/libc_uClibc.sh --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/build/libc_uClibc.sh Sat Feb 24 11:00:05 2007 +0000 @@ -0,0 +1,235 @@ +# 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 + + +# 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}" + + cp "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_BUILD_DIR}/uClibc.config" + + 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_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_CORE_FILE}/ChangeLog" || 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 "${CT_BUILD_DIR}/uClibc.config" .config + + # uClibc uses the CROSS environment variable as a prefix to the + # compiler tools to use. Setting it to the empty string forces + # use of the native build host tools, which we need at this + # stage, as we don't have target tools yet. + CT_DoLog EXTRA "Applying configuration" + CT_DoYes "" |make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig 2>&1 |CT_DoLog DEBUG + + CT_DoLog EXTRA "Building headers" + make ${PARALLELMFLAGS} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers 2>&1 |CT_DoLog DEBUG + + CT_DoLog EXTRA "Installing headers" + make CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev 2>&1 |CT_DoLog DEBUG + + CT_EndStep +} + +# This function build and install the full uClibc +do_libc() { + CT_DoStep INFO "Installing C library" + + mkdir -p "${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 "" |make ${PARALLELMFLAGS} \ + CROSS=${CT_TARGET}- \ + PREFIX="${CT_SYSROOT_DIR}/" \ + oldconfig 2>&1 |CT_DoLog DEBUG + + # 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" + make ${PARALLELMFLAGS} \ + CROSS=${CT_TARGET}- \ + PREFIX="${CT_SYSROOT_DIR}/" \ + STRIPTOOL=true \ + all 2>&1 |CT_DoLog DEBUG + + # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want + # to install headers in $SYSROOT/include, thus making only install_runtime. + # Plus, the headers were previously installed earlier with install_dev, so + # all should be well. Unfortunately, the install_dev target does not install + # crti.o and consorts... :-( So reverting to target 'install'. + # Note: PARALLELMFLAGS is not usefull for installation. + # We do _not_ want to strip anything for now, in case we specifically + # asked for a debug toolchain, thus the STRIPTOOL= assignment + CT_DoLog EXTRA "Installing C library" + make CROSS=${CT_TARGET}- \ + PREFIX="${CT_SYSROOT_DIR}/" \ + STRIPTOOL=true \ + install 2>&1 |CT_DoLog DEBUG + + CT_EndStep +} + +# This function is used to install those components needing the final C compiler +do_libc_finish() { + CT_DoStep INFO "Finishing C library" + # uClibc has nothing to finish + CT_DoLog EXTRA "uClibc has nothing to finish" + CT_EndStep +} + +# Initialises the .config file to sensible values +mungeuClibcConfig() { + config_file="$1" + munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed" + + 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="${CT_KERNEL_ARCH}"/ +ENDSED + + case "${CT_ARCH_BE},${CT_ARCH_LE}" in + y,) cat >> "${munge_file}" <<-ENDSED +s/.*(ARCH_BIG_ENDIAN).*/\\1=y/ +s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/ +ENDSED + ;; + ,y) cat >> "${munge_file}" <<-ENDSED +s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/ +s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/ +ENDSED + ;; + esac + + case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in + y,) cat >> "${munge_file}" <<-ENDSED +s/.*(HAS_FPU).*/\\1=y/ +ENDSED + ;; + ,y) cat >> "${munge_file}" <<-ENDSED +s/.*(HAS_FPU).*/\\# \\1 is not set/ +ENDSED + ;; + esac + + # Change paths to work with crosstool + # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev + # " we just want the kernel headers, not the whole kernel source ... + # " so people may need to update their paths slightly + quoted_kernel_source=`echo "${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="${quoted_headers_dir}"/ +s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/ +ENDSED + + # Hack our -pipe into WARNINGS, which will be internally incorporated to + # CFLAGS. This a dirty hack, but yet needed + if [ "${CT_USE_PIPES}" = "y" ]; then + cat >> "${munge_file}" <<-ENDSED +s/^(WARNINGS=".*)"$/\\1 -pipe"/ +ENDSED + 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 + + # Force on debug options if asked for + case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in + 0) + cat >>"${munge_file}" <<-ENDSED +s/^PTHREADS_DEBUG_SUPPORT=y/# PTHREADS_DEBUG_SUPPORT is not set/ +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/ +ENDSED + ;; + 1) + cat >>"${munge_file}" <<-ENDSED +s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/ +s/^# DODEBUG is not set.*/DODEBUG=y/ +s/^DODEBUG_PT=y/# DODEBUG_PT is not set/ +s/^DOASSERTS=y/# DOASSERTS is not set/ +s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/ +s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/ +ENDSED + ;; + 2) + cat >>"${munge_file}" <<-ENDSED +s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/ +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/ +ENDSED + ;; + esac + sed -r -i -f "${munge_file}" "${config_file}" + rm -f "${munge_file}" +}