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arch-armv4: Allow -march=armv4

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Even though it is deprecated in GCC 6 [1] it has not yet been
removed from gcc upstream. We do have active machines in OE
ecosystem which use armv4 ( SA11xx ) e.g. collie in meta-handheld
so until upstream gcc takes next step to remove them
lets support armv4 again, we are still carrying the relevant gcc patch
to support v4 BX fix.

[1] https://gcc.gnu.org/gcc-6/changes.html#arm

(From OE-Core rev: dea9b6c3fd62ec5ea8f12fcb9bf44870379c6f4b)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj 2021-06-09 19:17:05 -07:00 committed by Richard Purdie
parent 4c68b71628
commit 6b47aefa31
1 changed files with 1 additions and 1 deletions
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2
meta/conf/machine/include/arm/arch-armv4.inc
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@ -2,7 +2,7 @@ DEFAULTTUNE ?= "armv4"
TUNEVALID[arm] = "Enable ARM instruction set" TUNEVALID[arm] = "Enable ARM instruction set"
TUNEVALID[armv4] = "Enable instructions for ARMv4" TUNEVALID[armv4] = "Enable instructions for ARMv4"
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'armv4', ' -march=armv4t', '', d)}" TUNE_CCARGS .= "${@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 # 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 # 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 # checkvalues.issubset(val) which cannot be used for negative test of foo neither bar in value