168 lines
7.4 KiB
PHP
168 lines
7.4 KiB
PHP
SUMMARY = "C library for embedded systems"
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DESCRIPTION = "The name uClibc is an abbreviation for 'the \
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microcontroller C library'. For simplicity, uClibc is pronounced \
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'yew-see-lib-see'. The goal of uClibc is to provide as much \
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functionality as possible in a small amount of space, and it is intended \
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primarily for embedded use. It is also highly configurable in supported \
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features, at the cost of ABI differences for different configurations. \
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uClibc has been designed from the ground up to be a C library for \
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embedded Linux. It is NOT compatible with binaries linked against glibc."
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LICENSE = "LGPLv2.1+"
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SECTION = "libs"
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LIC_FILES_CHKSUM = "file://COPYING.LIB;md5=a6f89e2100d9b6cdffcea4f398e37343 \
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file://COPYING.LIB.boilerplate;md5=aaddeadcddeb918297e0e4afc52ce46f \
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file://${S}/test/regex/testregex.c;beginline=1;endline=31;md5=234efb227d0a40677f895e4a1e26e960"
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PR = "r9"
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require uclibc-config.inc
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PATH_prepend = "${STAGING_BINDIR_TOOLCHAIN}.${STAGINGCC}:"
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TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_TCBOOTSTRAP}"
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# siteconfig.bbclass runs configure which needs a working compiler
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# For the compiler to work we need a working libc yet libc isn't
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# in the sysroots directory at this point. This means the libc.so
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# linker script won't work as the --sysroot setting isn't correct.
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# Here we create a hacked up libc linker script and pass in the right
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# flags to let configure work. Ugly.
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EXTRASITECONFIG = "CFLAGS='${CFLAGS} -Wl,-L${WORKDIR}/site_config_libc -L${WORKDIR}/site_config_libc -L${SYSROOT_DESTDIR}${libdir} -L${SYSROOT_DESTDIR}${base_libdir} -Wl,-L${SYSROOT_DESTDIR}${libdir} -Wl,-L${SYSROOT_DESTDIR}${base_libdir}'"
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siteconfig_do_siteconfig_gencache_prepend = " \
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mkdir -p ${WORKDIR}/site_config_libc; \
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cp ${SYSROOT_DESTDIR}${libdir}/libc.so ${WORKDIR}/site_config_libc; \
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sed -i -e 's# ${base_libdir}# ${SYSROOT_DESTDIR}${base_libdir}#g' -e 's# ${libdir}# ${SYSROOT_DESTDIR}${libdir}#g' ${WORKDIR}/site_config_libc/libc.so; \
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"
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# For now, we will skip building of a gcc package if it is a uclibc one
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# and our build is not a uclibc one, and we skip a glibc one if our build
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# is a uclibc build.
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COMPATIBLE_HOST = ".*-uclibc.*"
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INHIBIT_DEFAULT_DEPS = "1"
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# do_stage barfs on a CC with whitespace, therefore put the 'HOST_CC_ARCH' in
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# the CFLAGS (when building the utils).
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OEMAKE_NO_CC = "'STRIPTOOL=true' 'LD=${LD}'"
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EXTRA_OEMAKE = "${OEMAKE_NO_CC} \
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'HOSTCC=${BUILD_CC}' \
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'HOST_CFLAGS=${BUILD_CFLAGS}' \
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'CC=${CC}' \
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ARCH=${UCLIBC_ARCH}"
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EXTRA_OEMAKE_task_do_package = "${OEMAKE_NO_CC}"
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# enable verbose output:
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export V="2"
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# -O<n> -fno-omit-frame-pointer ends up with GCC ICE on thumb as reported
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# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44860
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#
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CFLAGS_arm := "${@oe_filter_out('-fno-omit-frame-pointer', '${CFLAGS}', d)}"
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UCLIBC_EXTRA_CFLAGS := "${@oe_filter_out('(-I\S+|-i\S+)', '${CFLAGS}', d)}"
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UCLIBC_EXTRA_LDFLAGS := "${@oe_filter_out('(-L\S+|-l\S+)', '${LDFLAGS}', d)}"
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do_compile_prepend () {
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unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
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oe_runmake pregen
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}
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configmangle = '/^KERNEL_HEADERS/d; \
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/^RUNTIME_PREFIX/d; \
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/^DEVEL_PREFIX/d; \
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/^SHARED_LIB_LOADER_PREFIX/d; \
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/^UCLIBC_EXTRA_CFLAGS/d; \
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s,.*UCLIBC_HAS_WCHAR.*,UCLIBC_HAS_WCHAR=y,g; \
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${@["","s,.*COMPILE_IN_THUMB_MODE.*,COMPILE_IN_THUMB_MODE=y,;"][d.getVar("ARM_INSTRUCTION_SET", True) != "arm"]} \
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${@["","s,.*UCLIBC_HAS_LOCALE.*,UCLIBC_HAS_LOCALE=y,;"][d.getVar("USE_NLS", True) == "yes"]} \
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${@["","s,.*LDSO_GNU_HASH_SUPPORT.*,# LDSO_GNU_HASH_SUPPORT is not set,;"][d.getVar("TARGET_ARCH", True) in ['mips', 'mipsel', 'mips64', 'mips64el', 'avr32']]} \
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/^CROSS/d; \
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/^TARGET_ARCH=/d; \
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/^TARGET_/s,^\([^=]*\).*,# \1 is not set,g; \
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s,^DOSTRIP.*,# DOSTRIP is not set,g; \
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/_[EO]*ABI/d; \
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/HAS_FPU/d; \
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${@["","s,.*MULTILIB_DIR.*,MULTILIB_DIR=\"${baselib}\",;"][d.getVar("baselib", True) != "lib"]} \
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'
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OE_FEATURES := "${@features_to_uclibc_conf(d)}"
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OE_DEL := "${@features_to_uclibc_del(d)}"
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python () {
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if "${OE_DEL}":
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d.setVar('configmangle_append', "${OE_DEL}" + "\n")
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# by default uclibc uses mips1 ISA for o32 ABI
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# if we use TARGET_CC_ARCH="-march=mips32" we end up
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# with conflicting march options to gcc. Here we
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# ask for MIPS32 ISA to match the chosen arch
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tune = d.getVar("DEFAULTTUNE", True)
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if tune in ['mips32', 'mips32r2']:
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d.setVar('configmangle_append',
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"/^### MIPS32_CHECK$/a\\\nCONFIG_MIPS_ISA_%s=y\n\n" % (tune.upper()))
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if "${OE_FEATURES}":
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d.setVar('configmangle_append',
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"/^### DISTRO FEATURES$/a\\\n%s\n\n" %
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("\\n".join((d.expand("${OE_FEATURES}").split("\n")))))
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d.setVar('configmangle_append',
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"/^### CROSS$/a\\\n%s\n" %
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("\\n".join(["CROSS_COMPILER_PREFIX=\"${TARGET_PREFIX}\"",
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"UCLIBC_EXTRA_CFLAGS=\"${UCLIBC_EXTRA_CFLAGS}\"",
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"KERNEL_HEADERS=\"${STAGING_INCDIR}\"",
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"RUNTIME_PREFIX=\"/\"",
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"DEVEL_PREFIX=\"/${prefix}\"",
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"SHARED_LIB_LOADER_PREFIX=\"/lib\"",
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])
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))
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d.setVar('configmangle_append',
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"/^### TGT$/a\\\nTARGET_ARCH=\"%s\"\\nTARGET_%s=y\n" %
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("${UCLIBC_ARCH}", "${UCLIBC_ARCH}"))
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d.setVar('configmangle_append',
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"/^### FPU$/a\\\n%s\n\n" % (["UCLIBC_HAS_FPU=y","# UCLIBC_HAS_FPU is not set"][d.getVar('TARGET_FPU', True) in [ 'soft' ]]))
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if "${UCLIBC_ENDIAN}":
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d.setVar('configmangle_append',
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"/^### ABI$/a\\\nARCH_WANTS_%s_ENDIAN=y\n\n" % ("${UCLIBC_ENDIAN}"))
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if "${UCLIBC_ABI}":
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d.setVar('configmangle_append',
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"/^### ABI$/a\\\nCONFIG_%s=y\n\n" % ("${UCLIBC_ABI}"))
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}
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python do_patch_append() {
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import subprocess
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subprocess.call("ln -sf ${STAGING_INCDIR}/linux ${S}/include/linux", shell=True)
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subprocess.call("ln -sf ${STAGING_INCDIR}/asm ${S}/include/asm", shell=True)
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}
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do_configure() {
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rm -f ${S}/.config
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# OpenEmbedded splits the uClibc.config in two parts:
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# uClibc.machine, uClibc.distro
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echo "### uClibc.machine ###" >${S}/merged.config
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cat ${WORKDIR}/uClibc.machine >>${S}/merged.config
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echo "### uClibc.distro ###" >>${S}/merged.config
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cat ${WORKDIR}/uClibc.distro >>${S}/merged.config
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echo "### CROSS" >>${S}/merged.config
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echo "### TGT" >>${S}/merged.config
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echo "### MMU" >>${S}/merged.config
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echo "### FPU" >>${S}/merged.config
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echo "### ABI" >>${S}/merged.config
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echo "### DISTRO FEATURES" >>${S}/merged.config
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echo "### MIPS32_CHECK" >>${S}/merged.config
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# Mangle the resulting .config depending on OE variables
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sed -i -e '${configmangle}' ${S}/merged.config
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cp ${S}/merged.config .config
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merge_config.sh -r -n -m .config ${@" ".join(find_cfgs(d))}
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cml1_do_configure
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}
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do_install() {
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oe_runmake PREFIX=${D} install
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rm -rf ${D}${includedir}/iconv.h
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}
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# build ldd, ldconfig and friends but only for full uclibc
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do_install_append_pn-uclibc () {
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oe_runmake PREFIX=${D} "SSP_ALL_CFLAGS=${TARGET_LINK_HASH_STYLE}" -C utils utils_install
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}
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