Patchwork [09/23] x86_64: Use _CET_NOTRACK in strcmp.S

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Submitter H.J. Lu
Date May 8, 2018, 8:40 p.m.
Message ID <20180508204021.31845-10-hjl.tools@gmail.com>
Download mbox | patch
Permalink /patch/27175/
State New
Headers show

Comments

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

Patch

diff --git a/sysdeps/x86_64/strcmp.S b/sysdeps/x86_64/strcmp.S
index de54fce647..e16945b961 100644
--- a/sysdeps/x86_64/strcmp.S
+++ b/sysdeps/x86_64/strcmp.S
@@ -233,7 +233,7 @@  LABEL(bigger):
 	lea	LABEL(unaligned_table)(%rip), %r10
 	movslq	(%r10, %r9,4), %r9
 	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