diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2018-07-18 07:59:54 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-07-18 08:00:09 -0700 |
| commit | 0a899af097a987f02c223a7f1fb2348d5bfea76c (patch) | |
| tree | ab2039a952e47f341e54fd9f0d0625eabe64deaf | |
| parent | 177824e23274591dd549db0c0a4b569ee4ccd96b (diff) | |
| download | glibc-0a899af097a987f02c223a7f1fb2348d5bfea76c.tar glibc-0a899af097a987f02c223a7f1fb2348d5bfea76c.tar.gz glibc-0a899af097a987f02c223a7f1fb2348d5bfea76c.tar.bz2 glibc-0a899af097a987f02c223a7f1fb2348d5bfea76c.zip | |
i386: Use _CET_NOTRACK in memcpy-ssse3-rep.S
* 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.
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S | 8 |
2 files changed, 11 insertions, 4 deletions
@@ -1,5 +1,12 @@ 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 (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table. diff --git a/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S b/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S index 287f1df8ca..129310bd8a 100644 --- a/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S +++ b/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S @@ -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 |