diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc.inc')
| -rw-r--r-- | import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc.inc | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc.inc b/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc.inc new file mode 100644 index 000000000..1d42284fb --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-core/uclibc/uclibc.inc @@ -0,0 +1,168 @@ +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<n> -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 +} + |
