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i386: Use _CET_NOTRACK in memcpy-ssse3-rep.S

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* sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S
	(BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump
	to jump table.
	(BRANCH_TO_JMPTBL_ENTRY_TAIL): Likewise.
This commit is contained in:
H.J. Lu 2018-07-18 07:59:54 -07:00
parent 177824e232
commit 0a899af097
2 changed files with 11 additions and 4 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2018-07-18 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S
(BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump
to jump table.
(BRANCH_TO_JMPTBL_ENTRY_TAIL): Likewise.
2018-07-18 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/multiarch/memcmp-sse4.S

8
sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S
View File

@ -71,7 +71,7 @@
absolute address. */ \
addl (%ebx,INDEX,SCALE), %ebx; \
/* We loaded the jump table. Go. */ \
jmp *%ebx
_CET_NOTRACK jmp *%ebx
# define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE) \
addl $(TABLE - .), %ebx
@ -79,7 +79,7 @@
# define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE) \
addl (%ebx,INDEX,SCALE), %ebx; \
/* We loaded the jump table. Go. */ \
jmp *%ebx
_CET_NOTRACK jmp *%ebx
#else
# define PARMS 4
# define ENTRANCE
@ -91,12 +91,12 @@
absolute 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)
# define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE)
# define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE) \
jmp *TABLE(,INDEX,SCALE)
_CET_NOTRACK jmp *TABLE(,INDEX,SCALE)
#endif
.section .text.ssse3,"ax",@progbits