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Martin Jansa 4257e91cc5 arch-armv4.inc: add --fix-v4bx to TARGET_LD_KERNEL_ARCH only for armv4 and strongarm1100
* without this patch it does apply --fix-v4bx not only to armv4, but
  also all higher (because they also have armv4 in TUNE_FEATURES)
* it causes SIGILL on armv4t
  http://lists.linuxtogo.org/pipermail/openembedded-devel/2012-November/042298.html
* someone please test on armv4 device (I tested only bitbake -e output
  that it's correctly applied with DEFAULTTUNE == armv4
* maybe we can should fix this in binutils instead (both 2.22 and 2.23
  are affected)

(From OE-Core rev: 1691ff86c8aefd3c193ae9a2cdd998c7dc6d3270)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-02-14 15:19:52 +00:00

33 lines
1.5 KiB
PHP

DEFAULTTUNE ?= "armv4"
ARMPKGARCH ?= "armv4"
TUNEVALID[armv4] = "Enable instructions for ARMv4"
TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "armv4", "-march=armv4${ARMPKGSFX_THUMB}", "", d)}"
# enable --fix-v4bx when we have armv4 in TUNE_FEATURES, but then disable it when we have also armv5 or thumb
# maybe we should extend bb.utils.contains to support check for any checkvalues in value, now it does
# checkvalues.issubset(val) which cannot be used for negative test of foo neither bar in value
FIX_V4BX_ARMV4 = "${@bb.utils.contains("TUNE_FEATURES", "armv4", "--fix-v4bx", "", d)}"
FIX_V4BX_ARMV5 = "${@bb.utils.contains("TUNE_FEATURES", "armv5", "", "${FIX_V4BX_ARMV4}", d)}"
FIX_V4BX = "${@bb.utils.contains("TUNE_FEATURES", "thumb", "", "${FIX_V4BX_ARMV5}", d)}"
TARGET_LD_KERNEL_ARCH += "${FIX_V4BX}"
MACHINEOVERRIDES .= "${@bb.utils.contains("TUNE_FEATURES", "armv4", ":armv4", "" ,d)}"
require conf/machine/include/arm/arch-arm.inc
require conf/machine/include/arm/feature-arm-thumb.inc
# Little Endian
AVAILTUNES += "armv4 armv4t"
TUNE_FEATURES_tune-armv4 ?= "armv4"
TUNE_FEATURES_tune-armv4t ?= "armv4 thumb"
PACKAGE_EXTRA_ARCHS_tune-armv4 = "arm armv4"
PACKAGE_EXTRA_ARCHS_tune-armv4t = "${PACKAGE_EXTRA_ARCHS_tune-armv4} armv4t"
# Big Endian
AVAILTUNES += "armv4b armv4tb"
TUNE_FEATURES_tune-armv4b ?= "${TUNE_FEATURES_tune-armv4} bigendian"
TUNE_FEATURES_tune-armv4tb ?= "${TUNE_FEATURES_tune-armv4t} bigendian"
PACKAGE_EXTRA_ARCHS_tune-armv4b = "armeb armv4b"
PACKAGE_EXTRA_ARCHS_tune-armv4tb = "${PACKAGE_EXTRA_ARCHS_tune-armv4} armv4tb"