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https://github.com/crosstool-ng/crosstool-ng.git
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00084df12b
/trunk/scripts/build/libc_uClibc.sh | 19 11 8 0 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-)
314 lines
12 KiB
Bash
314 lines
12 KiB
Bash
# This file declares functions to install the uClibc C library
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# Copyright 2007 Yann E. MORIN
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# Licensed under the GPL v2. See COPYING in the root of this package
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do_print_filename() {
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[ "${CT_LIBC}" = "uClibc" ] || return 0
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echo "uClibc-${CT_LIBC_VERSION}"
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[ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && echo "uClibc-locale-030818" || true
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}
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# Download uClibc
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do_libc_get() {
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libc_src="http://www.uclibc.org/downloads
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http://www.uclibc.org/downloads/snapshots
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http://www.uclibc.org/downloads/old-releases"
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# For uClibc, we have almost every thing: releases, and snapshots
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# for the last month or so. We'll have to deal with svn revisions
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# later...
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CT_GetFile "${CT_LIBC_FILE}" ${libc_src}
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# uClibc locales
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[ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_GetFile "uClibc-locale-030818" ${libc_src} || true
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return 0
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}
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# Extract uClibc
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do_libc_extract() {
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CT_ExtractAndPatch "${CT_LIBC_FILE}"
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# uClibc locales
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[ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_ExtractAndPatch "uClibc-locale-030818" || true
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return 0
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}
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# Check that uClibc has been previously configured
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do_libc_check_config() {
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CT_DoStep INFO "Checking C library configuration"
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CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}"
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if egrep '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then
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CT_DoLog WARN "Your uClibc version refers to the kernel _sources_, which is bad."
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CT_DoLog WARN "I can't guarantee that our little hack will work. Please try to upgrade."
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fi
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CT_DoLog EXTRA "Munging uClibc configuration"
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mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_BUILD_DIR}/uClibc.config"
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CT_EndStep
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}
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# This functions installs uClibc's headers
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do_libc_headers() {
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# Only need to install bootstrap uClibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above?
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# See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
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grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0
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CT_DoStep INFO "Installing C library headers"
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mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
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cd "${CT_BUILD_DIR}/build-libc-headers"
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# Simply copy files until uClibc has the ablity to build out-of-tree
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CT_DoLog EXTRA "Copying sources to build dir"
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{ cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
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# Retrieve the config file
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cp "${CT_BUILD_DIR}/uClibc.config" .config
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# uClibc uses the CROSS environment variable as a prefix to the
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# compiler tools to use. Setting it to the empty string forces
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# use of the native build host tools, which we need at this
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# stage, as we don't have target tools yet.
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CT_DoLog EXTRA "Applying configuration"
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CT_DoYes "" |CT_DoExecLog ALL make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig
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CT_DoLog EXTRA "Building headers"
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CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers
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CT_DoLog EXTRA "Installing headers"
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CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev
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CT_EndStep
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}
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# Build and install start files
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do_libc_start_files() {
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:
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}
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# This function build and install the full uClibc
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do_libc() {
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CT_DoStep INFO "Installing C library"
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mkdir -p "${CT_BUILD_DIR}/build-libc"
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cd "${CT_BUILD_DIR}/build-libc"
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# Simply copy files until uClibc has the ablity to build out-of-tree
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CT_DoLog EXTRA "Copying sources to build dir"
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{ cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
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# Retrieve the config file
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cp "${CT_BUILD_DIR}/uClibc.config" .config
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# uClibc uses the CROSS environment variable as a prefix to the compiler
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# tools to use. The newly built tools should be in our path, so we need
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# only give the correct name for them.
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# Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,
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# depending on the configuration of the library. That is, they are tailored
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# to best fit the target. So it is useless and seems to be a bad thing to
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# use LIBC_EXTRA_CFLAGS here.
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CT_DoLog EXTRA "Applying configuration"
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CT_DoYes "" |CT_DoExecLog ALL \
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make CROSS=${CT_TARGET}- \
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PREFIX="${CT_SYSROOT_DIR}/" \
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oldconfig
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# We do _not_ want to strip anything for now, in case we specifically
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# asked for a debug toolchain, thus the STRIPTOOL= assignment
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CT_DoLog EXTRA "Building C library"
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CT_DoExecLog ALL \
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make CROSS=${CT_TARGET}- \
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PREFIX="${CT_SYSROOT_DIR}/" \
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STRIPTOOL=true \
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${CT_LIBC_UCLIBC_VERBOSITY} \
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all
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# YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want
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# to install headers in $SYSROOT/include, thus making only install_runtime.
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# Plus, the headers were previously installed earlier with install_dev, so
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# all should be well. Unfortunately, the install_dev target does not install
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# crti.o and consorts... :-( So reverting to target 'install'.
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# Note: PARALLELMFLAGS is not usefull for installation.
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# We do _not_ want to strip anything for now, in case we specifically
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# asked for a debug toolchain, thus the STRIPTOOL= assignment
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CT_DoLog EXTRA "Installing C library"
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CT_DoExecLog ALL \
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make CROSS=${CT_TARGET}- \
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PREFIX="${CT_SYSROOT_DIR}/" \
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STRIPTOOL=true \
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${CT_LIBC_UCLIBC_VERBOSITY} \
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install
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CT_EndStep
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}
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# This function is used to install those components needing the final C compiler
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do_libc_finish() {
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:
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}
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# Initialises the .config file to sensible values
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# $1: original file
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# $2: munged file
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mungeuClibcConfig() {
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src_config_file="$1"
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dst_config_file="$2"
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munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"
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# Start with a fresh file
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rm -f "${munge_file}"
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touch "${munge_file}"
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# Hack our target in the config file.
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# Also remove stripping: its the responsibility of the
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# firmware builder to strip or not.
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cat >>"${munge_file}" <<-ENDSED
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s/^(TARGET_.*)=y$/# \\1 is not set/
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s/^# TARGET_${CT_KERNEL_ARCH} is not set/TARGET_${CT_KERNEL_ARCH}=y/
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s/^TARGET_ARCH=".*"/TARGET_ARCH="${CT_KERNEL_ARCH}"/
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s/.*(DOSTRIP).*/# \\1 is not set/
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ENDSED
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# Ah. We may one day need architecture-specific handler here...
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# Hack the ARM {E,O}ABI into the config file
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if [ "${CT_ARCH_ARM_EABI}" = "y" ]; then
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cat >>"${munge_file}" <<-ENDSED
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s/.*(CONFIG_ARM_OABI).*/# \\1 is not set/
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s/.*(CONFIG_ARM_EABI).*/\\1=y/
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ENDSED
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else
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cat >>"${munge_file}" <<-ENDSED
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s/.*(CONFIG_ARM_OABI).*/\\1=y/
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s/.*(CONFIG_ARM_EABI).*/# \\1 is not set/
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ENDSED
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fi
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# Accomodate for old and new uClibc versions, where the
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# way to select between big/little endian has changed
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case "${CT_ARCH_BE},${CT_ARCH_LE}" in
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y,) cat >>"${munge_file}" <<-ENDSED
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s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/
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s/.*(ARCH_BIG_ENDIAN).*/\\1=y/
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s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/
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s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/
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ENDSED
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;;
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,y) cat >>"${munge_file}" <<-ENDSED
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s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/
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s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/
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s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/
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s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/
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ENDSED
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;;
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esac
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# Accomodate for old and new uClibc version, where the
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# way to select between hard/soft float has changed
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case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
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y,) cat >>"${munge_file}" <<-ENDSED
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s/^[^_]*(HAS_FPU).*/\\1=y/
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s/.*(UCLIBC_HAS_FPU).*/\\1=y/
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ENDSED
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;;
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,y) cat >>"${munge_file}" <<-ENDSED
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s/^[^_]*(HAS_FPU).*/\\# \\1 is not set/
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s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/
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ENDSED
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;;
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esac
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# Change paths to work with crosstool-NG
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# From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev
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# " we just want the kernel headers, not the whole kernel source ...
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# " so people may need to update their paths slightly
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quoted_kernel_source=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\/,g;')
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quoted_headers_dir=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/,\\/,g;')
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# CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line
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# DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}
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# Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and
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# newer versions use KERNEL_HEADERS (which is right). See:
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cat >>"${munge_file}" <<-ENDSED
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s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/
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s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/
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s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/
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s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/
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s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/
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s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/
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ENDSED
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if [ "${CT_USE_PIPES}" = "y" ]; then
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if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then
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# Good, there is special provision for such things as -pipe!
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cat >>"${munge_file}" <<-ENDSED
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s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/
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ENDSED
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else
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# Hack our -pipe into WARNINGS, which will be internally incorporated to
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# CFLAGS. This a dirty hack, but yet needed
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cat >> "${munge_file}" <<-ENDSED
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s/^(WARNINGS=".*)"$/\\1 -pipe"/
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ENDSED
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fi
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fi
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# Force on options needed for C++ if we'll be making a C++ compiler.
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# Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing
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# entirely if LOCALE is not set. If LOCALE was already set, we'll
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# assume the user has already made all the appropriate generation
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# arrangements. Note that having the uClibc Makefile download the
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# pregenerated locales is not compatible with crosstool; besides,
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# crosstool downloads them as part of getandpatch.sh.
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if [ "${CT_CC_LANG_CXX}" = "y" ]; then
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cat >>"${munge_file}" <<-ENDSED
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s/^# DO_C99_MATH is not set/DO_C99_MATH=y/
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s/^# UCLIBC_CTOR_DTOR is not set/UCLIBC_CTOR_DTOR=y/
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# Add these three lines when doing C++?
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s/^# UCLIBC_HAS_WCHAR is not set/UCLIBC_HAS_WCHAR=y/
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#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/
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s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/
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ENDSED
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fi
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# Always build the libpthread_db
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cat >>"${munge_file}" <<-ENDSED
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s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
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ENDSED
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# Force on debug options if asked for
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case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in
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0)
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cat >>"${munge_file}" <<-ENDSED
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s/^DODEBUG=y/# DODEBUG is not set/
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s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
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s/^DOASSERTS=y/# DOASSERTS is not set/
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s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
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s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
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s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
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ENDSED
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;;
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1)
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cat >>"${munge_file}" <<-ENDSED
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s/^# DODEBUG is not set.*/DODEBUG=y/
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s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
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s/^DOASSERTS=y/# DOASSERTS is not set/
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s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
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s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
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s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
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ENDSED
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;;
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2)
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cat >>"${munge_file}" <<-ENDSED
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s/^# DODEBUG is not set.*/DODEBUG=y/
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s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/
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s/^# DOASSERTS is not set.*/DOASSERTS=y/
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s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/
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s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/
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s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/
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ENDSED
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;;
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esac
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sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"
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}
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