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i386: Use _CET_NOTRACK in memcmp-sse4.S

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* sysdeps/i386/i686/multiarch/memcmp-sse4.S
	(BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump
	to jump table.
This commit is contained in:
H.J. Lu 2018-07-18 07:58:53 -07:00
parent 00e7b76a8f
commit 177824e232
2 changed files with 8 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2018-07-18 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/multiarch/memcmp-sse4.S
(BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump
to jump table.
2018-07-18 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/multiarch/memset-sse2.S

4
sysdeps/i386/i686/multiarch/memcmp-sse4.S
View File

@ -59,7 +59,7 @@
absolute address. */ \
addl (%ebx,INDEX,SCALE), %ebx; \
/* We loaded the jump table and adjusted EDX/ESI. Go. */ \
jmp *%ebx
_CET_NOTRACK jmp *%ebx
# else
# define JMPTBL(I, B) I
@ -67,7 +67,7 @@
jump table with relative offsets. INDEX is a register contains the
index into the jump table. SCALE is the scale of INDEX. */
# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \
jmp *TABLE(,INDEX,SCALE)
_CET_NOTRACK jmp *TABLE(,INDEX,SCALE)
# endif