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rust: don't configure thumb if not in TUNE_FEATURES

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ARM_INSTRUCTION_SET, and therefore ARM_THUMB_OPT also, expect to only be
used in conjunction with the thumb TUNE_FEATURES. So thumb-mode should only
be added if thumb is in TUNE_FEATURES and ARM_THUMB_OPT is thumb.

The commit https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/meta/conf/machine/include/arm/arch-armv7a.inc?id=3e7d26e31a724009e69788460737e07163a14051
caused armv7a.inc to set ARM_INSTRUCTION_SET to thumb and the commit
message explicitly states that the change should have no effect unless
TUNE_FEATURES also includes thumb. This change to rust will allow that
assumption to continue to be true.
This commit is contained in:
Dan Dedrick
2019-01-14 15:39:37 -05:00
parent e357f4e5d5
commit e7c10de555
1 changed files with 5 additions and 4 deletions
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9
recipes-devtools/rust/rust.inc
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@@ -78,10 +78,11 @@ def llvm_features_from_tune(d):
if 'dsp' in feat:
f.append("+dsp")
if d.getVar('ARM_THUMB_OPT') is "thumb":
if not feat.isdisjoint(v7):
f.append("+thumb2")
f.append("+thumb-mode")
if 'thumb' in feat:
if d.getVar('ARM_THUMB_OPT') is "thumb":
if not feat.isdisjoint(v7):
f.append("+thumb2")
f.append("+thumb-mode")
if 'cortexa5' in feat:
f.append("+a5")