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kselftest/arm64: Fix hwcaps selftest build

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The hwcaps selftest currently relies on the assembler being able to
assemble the crc32w instruction but this is not in the base v8.0 so is not
accepted by the standard GCC configurations used by many distributions.
Switch to manually encoding to fix the build.

Fixes: 09d2e95a04ad ("kselftest/arm64: add crc32 feature to hwcap test")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230816-arm64-fix-crc32-build-v1-1-40165c1290f2@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Mark Brown 2023-08-16 19:39:32 +01:00 committed by Will Deacon
parent fcb0b51a5d
commit 94f23ac36f
1 changed files with 2 additions and 1 deletions
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3
tools/testing/selftests/arm64/abi/hwcap.c
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@ -48,7 +48,8 @@ static void atomics_sigill(void)
static void crc32_sigill(void)
{
asm volatile("crc32w w0, w0, w1");
/* CRC32W W0, W0, W1 */
asm volatile(".inst 0x1ac14800" : : : );
}
static void cssc_sigill(void)