Patchwork [15/23] i386: Use _CET_NOTRACK in i686/memcmp.S

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Submitter H.J. Lu
Date May 8, 2018, 8:40 p.m.
Message ID <20180508204021.31845-16-hjl.tools@gmail.com>
Download mbox | patch
Permalink /patch/27160/
State New
Headers show

Comments

H.J. Lu - May 8, 2018, 8:40 p.m.
* sysdeps/i386/i686/memcmp.S (memcmp): Add _CET_NOTRACK before
	indirect jump to jump table.
---
 sysdeps/i386/i686/memcmp.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/sysdeps/i386/i686/memcmp.S b/sysdeps/i386/i686/memcmp.S
index a0bc9ec97c..3259076cd7 100644
--- a/sysdeps/i386/i686/memcmp.S
+++ b/sysdeps/i386/i686/memcmp.S
@@ -80,7 +80,7 @@  L(not_1):
 	LOAD_JUMP_TABLE_ENTRY (L(table_32bytes), %ecx)
 	addl	%ecx, %edx
 	addl	%ecx, %esi
-	jmp	*%ebx
+	_CET_NOTRACK jmp *%ebx
 
 	ALIGN (4)
 L(28bytes):
@@ -326,7 +326,7 @@  L(32bytesormore):
 	LOAD_JUMP_TABLE_ENTRY (L(table_32bytes), %ecx)
 	addl	%ecx, %edx
 	addl	%ecx, %esi
-	jmp	*%ebx
+	_CET_NOTRACK jmp *%ebx
 
 L(load_ecx_28):
 	addl	$0x4, %edx