Patchwork [11/23] x86-64: Use _CET_NOTRACK in strcmp-sse42.S

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Submitter H.J. Lu
Date May 8, 2018, 8:40 p.m.
Message ID <20180508204021.31845-12-hjl.tools@gmail.com>
Download mbox | patch
Permalink /patch/27162/
State New
Headers show

Comments

H.J. Lu - May 8, 2018, 8:40 p.m.
* sysdeps/x86_64/multiarch/strcmp-sse42.S (STRCMP_SSE42): Add
	_CET_NOTRACK before indirect jump to jump table.
---
 sysdeps/x86_64/multiarch/strcmp-sse42.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/sysdeps/x86_64/multiarch/strcmp-sse42.S b/sysdeps/x86_64/multiarch/strcmp-sse42.S
index 5a0c6668a7..d3c07bd292 100644
--- a/sysdeps/x86_64/multiarch/strcmp-sse42.S
+++ b/sysdeps/x86_64/multiarch/strcmp-sse42.S
@@ -275,7 +275,7 @@  LABEL(bigger):
 	movslq	(%r10, %r9,4), %r9
 	pcmpeqb	%xmm1, D(%xmm0)		/* Any null chars? */
 	lea	(%r10, %r9), %r10
-	jmp	*%r10			/* jump to corresponding case */
+	_CET_NOTRACK jmp *%r10		/* jump to corresponding case */
 
 /*
  * The following cases will be handled by ashr_0