# 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 # 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" ${libc_src} return 0 } # Extract uClibc do_libc_extract() { CT_ExtractAndPatch "${CT_LIBC_FILE}" # uClibc locales [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_ExtractAndPatch "uClibc-locale-030818" return 0 } # Check that uClibc has been previously configured do_libc_check_config() { CT_DoStep INFO "Checking C library configuration" CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}" cp "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_SRC_DIR}/uClibc.config" if egrep '^KERNEL_SOURCE=' "${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 "${CT_SRC_DIR}/uClibc.config" CT_EndStep } # This functions installs uClibc's headers do_libc_headers() { # Only need to install bootstrap uClibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above? # See also http://gcc.gnu.org/PR8180, which complains about the need for this step. grep -q 'gcc-[34]' "${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_SRC_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 ALL CT_DoLog EXTRA "Building headers" make ${PARALLELMFLAGS} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers 2>&1 |CT_DoLog ALL CT_DoLog EXTRA "Installing headers" make CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev 2>&1 |CT_DoLog ALL CT_EndStep } # This function build and install the full uClibc do_libc() { CT_DoStep INFO "Installing C library" mkdir -p "${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_SRC_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 ALL # 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 ALL # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want # to install headers in $SYSROOT/include, thus making only install_runtime. # Plus, the headers were previously installed earlier with install_dev, so # all should be well. Unfortunately, the install_dev target does not install # crti.o and consorts... :-( So reverting to target 'install'. # Note: PARALLELMFLAGS is not usefull for installation. # We do _not_ want to strip anything for now, in case we specifically # asked for a debug toolchain, thus the STRIPTOOL= assignment CT_DoLog EXTRA "Installing C library" make CROSS=${CT_TARGET}- \ PREFIX="${CT_SYSROOT_DIR}/" \ STRIPTOOL=true \ install 2>&1 |CT_DoLog ALL 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 mungeuClibcConfig() { config_file="$1" munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed" # 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="${CT_KERNEL_ARCH}"/ s/.*(DOSTRIP).*/# \\1 is not set/ ENDSED # Accomodate for old and new uClibc versions, where the # way to select between big/little endian has changed case "${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 >> "${munge_file}" <<-ENDSED s/.*(HAS_FPU).*/\\# \\1 is not set/ s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/ ENDSED ;; esac # Change paths to work with crosstool # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev # " we just want the kernel headers, not the whole kernel source ... # " so people may need to update their paths slightly quoted_kernel_source=`echo "${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 # 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/ s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/ ENDSED ;; 1) cat >>"${munge_file}" <<-ENDSED s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/ s/^# DODEBUG is not set.*/DODEBUG=y/ s/^DODEBUG_PT=y/# DODEBUG_PT is not set/ s/^DOASSERTS=y/# DOASSERTS is not set/ s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/ s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/ s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/ ENDSED ;; 2) cat >>"${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/ s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/ ENDSED ;; esac sed -r -i -f "${munge_file}" "${config_file}" rm -f "${munge_file}" }