GNU as warns twice for this file: Warning: using r15 results in unpredictable behaviour
via the Arm ARM: K1.1.1 Overview of the constraints on Armv7 UNPREDICTABLE behaviors The term UNPREDICTABLE describes a number of cases where the architecture has a feature that software must not use. Link: https://github.com/ClangBuiltLinux/linux/issues/1271 Link: https://reviews.llvm.org/D95586 Reported-by: kernelci.org bot <b...@kernelci.org> Suggested-by: Peter Smith <peter.sm...@arm.com> Suggested-by: Renato Golin <rengo...@systemcall.eu> Suggested-by: David Spickett <david.spick...@linaro.org> Signed-off-by: Nick Desaulniers <ndesaulni...@google.com> --- arch/arm/probes/kprobes/test-arm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/probes/kprobes/test-arm.c b/arch/arm/probes/kprobes/test-arm.c index 977369f1aa48..2543106a203e 100644 --- a/arch/arm/probes/kprobes/test-arm.c +++ b/arch/arm/probes/kprobes/test-arm.c @@ -166,10 +166,10 @@ void kprobe_arm_test_cases(void) /* Data-processing with PC as a target and status registers updated */ TEST_UNSUPPORTED("movs pc, r1") - TEST_UNSUPPORTED("movs pc, r1, lsl r2") + TEST_UNSUPPORTED(__inst_arm(0xe1b0f211) " @movs pc, r1, lsl r2") TEST_UNSUPPORTED("movs pc, #0x10000") TEST_UNSUPPORTED("adds pc, lr, r1") - TEST_UNSUPPORTED("adds pc, lr, r1, lsl r2") + TEST_UNSUPPORTED(__inst_arm(0xe09ef211) " @adds pc, lr, r1, lsl r2") TEST_UNSUPPORTED("adds pc, lr, #4") /* Data-processing with SP as target */ -- 2.30.0.478.g8a0d178c01-goog
