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ARM: 9087/1: kprobes: test-thumb: fix for LLVM_IAS=1 

[ Upstream commit 8b95a7d90ce8160ac5cffd5bace6e2eba01a871e ]

There's a few instructions that GAS infers operands but Clang doesn't;
from what I can tell the Arm ARM doesn't say these are optional.

F5.1.257 TBB, TBH T1 Halfword variant
F5.1.238 STREXD T1 variant
F5.1.84 LDREXD T1 variant

Link: https://github.com/ClangBuiltLinux/linux/issues/1309

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Jian Cai <jiancai@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nick Desaulniers 2021-06-01 20:29:26 +01:00 committed by Greg Kroah-Hartman
parent 94cfbe80f0
commit d2bc221be1
1 changed files with 5 additions and 5 deletions
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10
arch/arm/probes/kprobes/test-thumb.c
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@ -441,21 +441,21 @@ void kprobe_thumb32_test_cases(void)
"3: mvn r0, r0 \n\t"
"2: nop \n\t")
TEST_RX("tbh [pc, r",7, (9f-(1f+4))>>1,"]",
TEST_RX("tbh [pc, r",7, (9f-(1f+4))>>1,", lsl #1]",
"9: \n\t"
".short (2f-1b-4)>>1 \n\t"
".short (3f-1b-4)>>1 \n\t"
"3: mvn r0, r0 \n\t"
"2: nop \n\t")
TEST_RX("tbh [pc, r",12, ((9f-(1f+4))>>1)+1,"]",
TEST_RX("tbh [pc, r",12, ((9f-(1f+4))>>1)+1,", lsl #1]",
"9: \n\t"
".short (2f-1b-4)>>1 \n\t"
".short (3f-1b-4)>>1 \n\t"
"3: mvn r0, r0 \n\t"
"2: nop \n\t")
TEST_RRX("tbh [r",1,9f, ", r",14,1,"]",
TEST_RRX("tbh [r",1,9f, ", r",14,1,", lsl #1]",
"9: \n\t"
".short (2f-1b-4)>>1 \n\t"
".short (3f-1b-4)>>1 \n\t"
@ -468,10 +468,10 @@ void kprobe_thumb32_test_cases(void)
TEST_UNSUPPORTED("strexb r0, r1, [r2]")
TEST_UNSUPPORTED("strexh r0, r1, [r2]")
TEST_UNSUPPORTED("strexd r0, r1, [r2]")
TEST_UNSUPPORTED("strexd r0, r1, r2, [r2]")
TEST_UNSUPPORTED("ldrexb r0, [r1]")
TEST_UNSUPPORTED("ldrexh r0, [r1]")
TEST_UNSUPPORTED("ldrexd r0, [r1]")
TEST_UNSUPPORTED("ldrexd r0, r1, [r1]")
TEST_GROUP("Data-processing (shifted register) and (modified immediate)")