diff options
Diffstat (limited to 'conf/distro/include/sane-toolchain.inc')
| -rw-r--r-- | conf/distro/include/sane-toolchain.inc | 60 |
1 files changed, 58 insertions, 2 deletions
diff --git a/conf/distro/include/sane-toolchain.inc b/conf/distro/include/sane-toolchain.inc index cebe77b4b5..65cb7763d1 100644 --- a/conf/distro/include/sane-toolchain.inc +++ b/conf/distro/include/sane-toolchain.inc @@ -65,16 +65,21 @@ PREFERRED_PROVIDER_linux-libc-headers = "linux-libc-headers" # Branding TARGET_VENDOR = "-oe" +# Add FEED_ARCH to the overrides list so that we can override the +# ARM_INSTRUCTION_SET like below + +OVERRIDES .= ":${FEED_ARCH}" + # ARM920T and up can use thumb mode to decrease binary size at the expense of speed # (the complete story is a bit more nuanced due to cache starvation) # Minimal turns on thumb for armv4t machine according to this RFC: # http://lists.linuxtogo.org/pipermail/angstrom-distro-devel/2008-October/002714.html # We can't set ARM_INSTRUCTION_SET_<override> directly since that will un-overridable in recipes like gcc -PREFERRED_ARM_INSTRUCTION_SET ?= "arm" PREFERRED_ARM_INSTRUCTION_SET_armv4t = "thumb" PREFERRED_ARM_INSTRUCTION_SET_armv5te = "thumb" PREFERRED_ARM_INSTRUCTION_SET_armv5teb = "thumb" +PREFERRED_ARM_INSTRUCTION_SET ?= "arm" ARM_INSTRUCTION_SET = "${PREFERRED_ARM_INSTRUCTION_SET}" # "arm" "thumb" # The instruction set the compiler should use when generating application @@ -136,7 +141,58 @@ ENABLE_BINARY_LOCALE_GENERATION_armv7a = "0" #qemu has taken a dislike to armeb as well ENABLE_BINARY_LOCALE_GENERATION_armeb = "0" +def detect_arm_abi (d): + import bb + if bb.data.getVar('DISTRO_FEATURES',d) is None: + if bb.data.getVar('TARGET_ARCH', d, 1) in [ 'arm', 'armeb' ]: + return "oabi" + else: + return "" + if bb.data.getVar('TARGET_ARCH', d, 1) in [ 'arm', 'armeb' ]: + if 'eabi' in bb.data.getVar('DISTRO_FEATURES',d).split(): + return "eabi" + return "oabi" + return "" + +def compute_os_portion_of_target_triplet (d): + import bb + arm_eabi_supporting_arches = "armv6 armv6-novfp \ + armv5te iwmmxt armv7a armv7 armv6 armv5teb armv5te armv4t" + ppc_spe_supporting_arches = "ppce500v2 ppce500" + + if bb.data.getVar("LIBC", d, 1) == "uclibc": + libc_suffix = "uclibc" + else: + libc_suffix = "gnu" + + if bb.data.getVar('TARGET_ARCH',d,1) in ['bfin']: + if libc_suffix == "gnu": + bb.fatal("bfin is not supported on glibc/eglibc. Please choose uclibc") + else: + os_suffix = "uclinux" + else: + os_suffix = "linux" + bparch = bb.data.getVar('BASE_PACKAGE_ARCH', d,1) + + if bb.data.getVar('DISTRO_FEATURES',d,1) is not None and \ + bparch is not None: + if 'eabi' in bb.data.getVar('DISTRO_FEATURES',d,1).split() and \ + bb.data.getVar('TARGET_ARCH', d, 1) in [ 'arm', 'armeb' ]: + if bparch not in arm_eabi_supporting_arches.split(): + bb.fatal("DISTRO requested EABI but selected machine does not support EABI") + abi_suffix = "" + else: + abi_suffix = "eabi" + elif bparch in ppc_spe_supporting_arches.split(): + abi_suffix = "spe" + else: + abi_suffix = "" + else: + bb.note("DISTRO_FEATURES is not set abi suffix not set") + abi_suffix = "" + return os_suffix + "-" + libc_suffix + abi_suffix # This is needed to get a correct PACKAGE_ARCH for packages that have PACKAGE_ARCH = ${MACHINE_ARCH} -ARM_ABI ?= "${@['','oabi'][bb.data.getVar('MACHINE',d) in ['collie','h3600', 'h3800', 'simpad', 'htcwallaby']]}" +ARM_ABI = "${@detect_arm_abi(d)}" +TARGET_OS = "${@compute_os_portion_of_target_triplet(d)}" include conf/distro/include/sane-toolchain-${ARM_ABI}.inc |