Commit 94f23ac3 authored by Mark Brown's avatar Mark Brown Committed by Will Deacon
Browse files

kselftest/arm64: Fix hwcaps selftest build 



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: 09d2e95a ("kselftest/arm64: add crc32 feature to hwcap test")
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230816-arm64-fix-crc32-build-v1-1-40165c1290f2@kernel.org


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent fcb0b51a

tools/testing/selftests/arm64/abi/hwcap.c

+2 −1
Original line number Diff line number Diff line
@@ -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)