Commit f9a3099f authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/nospec: prefer local labels in .set directives 



Use local labels in .set directives to avoid potential compile errors
with LTO + clang. See commit 334865b2 ("x86/extable: Prefer local
labels in .set directives") for further details.

Since s390 doesn't support LTO currently this doesn't fix a real bug
for now, but helps to avoid problems as soon as required pieces have
been added to llvm.

Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 108ab40f

arch/s390/include/asm/nospec-insn.h

+6 −6
Original line number Diff line number Diff line
@@ -54,31 +54,31 @@ 
	.endm



	.macro	__DECODE_R expand,reg

	.set __decode_fail,1

	.set .L__decode_fail,1

	.irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15

	.ifc \reg,%r\r1

	\expand \r1

	.set __decode_fail,0

	.set .L__decode_fail,0

	.endif

	.endr

	.if __decode_fail == 1

	.if .L__decode_fail == 1

	.error "__DECODE_R failed"

	.endif

	.endm



	.macro	__DECODE_RR expand,rsave,rtarget

	.set __decode_fail,1

	.set .L__decode_fail,1

	.irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15

	.ifc \rsave,%r\r1

	.irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15

	.ifc \rtarget,%r\r2

	\expand \r1,\r2

	.set __decode_fail,0

	.set .L__decode_fail,0

	.endif

	.endr

	.endif

	.endr

	.if __decode_fail == 1

	.if .L__decode_fail == 1

	.error "__DECODE_RR failed"

	.endif

	.endm