Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH 4/4] ARM: kprobes: make more tests conditional | Date | Wed, 22 Aug 2012 16:29:40 +0200 |
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The mls instruction is not available in ARMv6K or below, so we should make the test conditional on at least ARMv7. ldrex/strex are available in ARMv6K or ARMv7, which we can test by checking the CONFIG_CPU_32v6K symbol. Just testing for ARMv6 is not enough.
/tmp/ccuMTZ8D.s: Assembler messages: /tmp/ccuMTZ8D.s:22188: Error: selected processor does not support ARM mode `mls r0,r1,r2,r3' /tmp/ccuMTZ8D.s:22222: Error: selected processor does not support ARM mode `mlshi r7,r8,r9,r10' /tmp/ccuMTZ8D.s:22252: Error: selected processor does not support ARM mode `mls lr,r1,r2,r13'
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Jon Medhurst <tixy@yxit.co.uk> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Leif Lindholm <leif.lindholm@arm.com> --- arch/arm/kernel/kprobes-test-arm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index 38c1a3b..3e87ff7 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -367,9 +367,11 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe0500090 @ undef") TEST_UNSUPPORTED(".word 0xe05fff9f @ undef") +#if __LINUX_ARM_ARCH__ >= 7 TEST_RRR( "mls r0, r",1, VAL1,", r",2, VAL2,", r",3, VAL3,"") TEST_RRR( "mlshi r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"") TEST_RR( "mls lr, r",1, VAL2,", r",2, VAL3,", r13") +#endif TEST_UNSUPPORTED(".word 0xe06f3291 @ mls pc, r1, r2, r3") TEST_UNSUPPORTED(".word 0xe060329f @ mls r0, pc, r2, r3") TEST_UNSUPPORTED(".word 0xe0603f91 @ mls r0, r1, pc, r3") @@ -454,7 +456,7 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe1500090") /* Unallocated space */ TEST_UNSUPPORTED(".word 0xe1600090") /* Unallocated space */ TEST_UNSUPPORTED(".word 0xe1700090") /* Unallocated space */ -#if __LINUX_ARM_ARCH__ >= 6 +#ifdef CONFIG_CPU_32v6K TEST_UNSUPPORTED("ldrex r2, [sp]") TEST_UNSUPPORTED("strexd r0, r2, r3, [sp]") TEST_UNSUPPORTED("ldrexd r2, r3, [sp]") -- 1.7.10
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