SUMMARY = "C library for embedded systems" DESCRIPTION = "The name uClibc is an abbreviation for 'the \ microcontroller C library'. For simplicity, uClibc is pronounced \ 'yew-see-lib-see'. The goal of uClibc is to provide as much \ functionality as possible in a small amount of space, and it is intended \ primarily for embedded use. It is also highly configurable in supported \ features, at the cost of ABI differences for different configurations. \ uClibc has been designed from the ground up to be a C library for \ embedded Linux. It is NOT compatible with binaries linked against glibc." LICENSE = "LGPLv2.1+" SECTION = "libs" LIC_FILES_CHKSUM = "file://COPYING.LIB;md5=a6f89e2100d9b6cdffcea4f398e37343 \ file://COPYING.LIB.boilerplate;md5=aaddeadcddeb918297e0e4afc52ce46f \ file://${S}/test/regex/testregex.c;beginline=1;endline=31;md5=234efb227d0a40677f895e4a1e26e960" require uclibc-config.inc PATH_prepend = "${STAGING_BINDIR_TOOLCHAIN}.${STAGINGCC}:" TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_TCBOOTSTRAP}" # siteconfig.bbclass runs configure which needs a working compiler # For the compiler to work we need a working libc yet libc isn't # in the sysroots directory at this point. This means the libc.so # linker script won't work as the --sysroot setting isn't correct. # Here we create a hacked up libc linker script and pass in the right # flags to let configure work. Ugly. 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}'" siteconfig_do_siteconfig_gencache_prepend = " \ mkdir -p ${WORKDIR}/site_config_libc; \ cp ${SYSROOT_DESTDIR}${libdir}/libc.so ${WORKDIR}/site_config_libc; \ sed -i -e 's# ${base_libdir}# ${SYSROOT_DESTDIR}${base_libdir}#g' -e 's# ${libdir}# ${SYSROOT_DESTDIR}${libdir}#g' ${WORKDIR}/site_config_libc/libc.so; \ " # For now, we will skip building of a gcc package if it is a uclibc one # and our build is not a uclibc one, and we skip a glibc one if our build # is a uclibc build. COMPATIBLE_HOST = ".*-uclibc.*" INHIBIT_DEFAULT_DEPS = "1" # There appears to be a parallel race in uclibc: # GEN /extra/locale/locale_collate.h # xargs: ../..//extra/locale/gen_collate: Text file busy # make[1]: *** [../..//extra/locale/locale_collate.h] Error 126 PARALLEL_MAKE = "" # do_stage barfs on a CC with whitespace, therefore put the 'HOST_CC_ARCH' in # the CFLAGS (when building the utils). OEMAKE_NO_CC = "'STRIPTOOL=true' 'LD=${LD}'" EXTRA_OEMAKE = "${OEMAKE_NO_CC} \ 'HOSTCC=${BUILD_CC}' \ 'HOST_CFLAGS=${BUILD_CFLAGS}' \ 'CC=${CC}' \ ARCH=${UCLIBC_ARCH}" EXTRA_OEMAKE_task_do_package = "${OEMAKE_NO_CC}" # enable verbose output: export V="2" # -O -fno-omit-frame-pointer ends up with GCC ICE on thumb as reported # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44860 # CFLAGS_remove_arm = "-fno-omit-frame-pointer" UCLIBC_EXTRA_CFLAGS = "${@oe_filter_out('(-I\S+|-i\S+)', '${CFLAGS}', d)}" configmangle = '/^KERNEL_HEADERS/d; \ /^RUNTIME_PREFIX/d; \ /^DEVEL_PREFIX/d; \ /^SHARED_LIB_LOADER_PREFIX/d; \ /^UCLIBC_EXTRA_CFLAGS/d; \ s,.*UCLIBC_HAS_WCHAR.*,UCLIBC_HAS_WCHAR=y,g; \ ${@["","s,.*COMPILE_IN_THUMB_MODE.*,COMPILE_IN_THUMB_MODE=y,;"][d.getVar("ARM_INSTRUCTION_SET", True) == "thumb"]} \ ${@["","s,.*UCLIBC_HAS_LOCALE.*,UCLIBC_HAS_LOCALE=y,;"][d.getVar("USE_NLS", True) == "yes"]} \ ${@["","s,.*LDSO_GNU_HASH_SUPPORT.*,# LDSO_GNU_HASH_SUPPORT is not set,;"][d.getVar("TARGET_ARCH", True) in ['mips', 'mipsel', 'mips64', 'mips64el', 'avr32']]} \ /^CROSS/d; \ /^TARGET_ARCH=/d; \ /^TARGET_/s,^\([^=]*\).*,# \1 is not set,g; \ s,^DOSTRIP.*,# DOSTRIP is not set,g; \ /_[EO]*ABI/d; \ /HAS_FPU/d; \ ${@["","s,.*MULTILIB_DIR.*,MULTILIB_DIR=\"${baselib}\",;"][d.getVar("baselib", True) != "lib"]} \ ' OE_FEATURES = "${@features_to_uclibc_conf(d)}" OE_DEL = "${@features_to_uclibc_del(d)}" python () { if "${OE_DEL}": d.setVar('configmangle_append', "${OE_DEL}" + "\n") # by default uclibc uses mips1 ISA for o32 ABI # if we use TARGET_CC_ARCH="-march=mips32" we end up # with conflicting march options to gcc. Here we # ask for MIPS32 ISA to match the chosen arch tune = d.getVar("DEFAULTTUNE", True) if tune.startswith('mips32'): import re tune = re.sub('(el)*(-nf)*', '', tune) d.setVar('configmangle_append', "/^### MIPS32_CHECK$/a\\\nCONFIG_MIPS_ISA_%s=y\n\n" % (tune.upper())) if "${OE_FEATURES}": d.setVar('configmangle_append', "/^### DISTRO FEATURES$/a\\\n%s\n\n" % ("\\n".join((d.expand("${OE_FEATURES}").split("\n"))))) d.setVar('configmangle_append', "/^### CROSS$/a\\\n%s\n" % ("\\n".join(["CROSS_COMPILER_PREFIX=\"${TARGET_PREFIX}\"", "UCLIBC_EXTRA_CFLAGS=\"${UCLIBC_EXTRA_CFLAGS}\"", "KERNEL_HEADERS=\"${STAGING_INCDIR}\"", "RUNTIME_PREFIX=\"/\"", "DEVEL_PREFIX=\"/${prefix}\"", "SHARED_LIB_LOADER_PREFIX=\"/lib\"", ]) )) d.setVar('configmangle_append', "/^### TGT$/a\\\nTARGET_ARCH=\"%s\"\\nTARGET_%s=y\n" % ("${UCLIBC_ARCH}", "${UCLIBC_ARCH}")) d.setVar('configmangle_append', "/^### FPU$/a\\\n%s\n\n" % (["UCLIBC_HAS_FPU=y","# UCLIBC_HAS_FPU is not set"][d.getVar('TARGET_FPU', True) in [ 'soft' ]])) if "${UCLIBC_ENDIAN}": d.setVar('configmangle_append', "/^### ABI$/a\\\nARCH_WANTS_%s_ENDIAN=y\n\n" % ("${UCLIBC_ENDIAN}")) if "${UCLIBC_ABI}": d.setVar('configmangle_append', "/^### ABI$/a\\\nCONFIG_%s=y\n\n" % ("${UCLIBC_ABI}")) } python do_patch_append() { import subprocess subprocess.call("ln -sf ${STAGING_INCDIR}/linux ${S}/include/linux", shell=True) subprocess.call("ln -sf ${STAGING_INCDIR}/asm ${S}/include/asm", shell=True) } do_configure() { rm -f ${S}/.config # OpenEmbedded splits the uClibc.config in two parts: # uClibc.machine, uClibc.distro echo "### uClibc.machine ###" >${S}/merged.config cat ${WORKDIR}/uClibc.machine >>${S}/merged.config echo "### uClibc.distro ###" >>${S}/merged.config cat ${WORKDIR}/uClibc.distro >>${S}/merged.config echo "### CROSS" >>${S}/merged.config echo "### TGT" >>${S}/merged.config echo "### MMU" >>${S}/merged.config echo "### FPU" >>${S}/merged.config echo "### ABI" >>${S}/merged.config echo "### DISTRO FEATURES" >>${S}/merged.config echo "### MIPS32_CHECK" >>${S}/merged.config # Mangle the resulting .config depending on OE variables sed -i -e '${configmangle}' ${S}/merged.config cp ${S}/merged.config .config merge_config.sh -r -n -m .config ${@" ".join(find_cfgs(d))} cml1_do_configure } do_install() { oe_runmake PREFIX=${D} install rm -rf ${D}${includedir}/iconv.h } # build ldd, ldconfig and friends but only for full uclibc do_install_append_pn-uclibc () { oe_runmake PREFIX=${D} "SSP_ALL_CFLAGS=${TARGET_LINK_HASH_STYLE}" -C utils utils_install }