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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-07-18 06:38:10 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-07-18 06:38:23 -0700 |
| commit | 811e9e52b2bd2fb59b981b174ad30489d2574081 (patch) | |
| tree | 61121512f0f6bc0e4f092efa3d51aecdf94b9f5e | |
| parent | 8817df42650af57e8d1c4bab4c73b78375d6cfaf (diff) | |
| download | glibc-811e9e52b2bd2fb59b981b174ad30489d2574081.tar.gz glibc-811e9e52b2bd2fb59b981b174ad30489d2574081.tar.xz glibc-811e9e52b2bd2fb59b981b174ad30489d2574081.zip | |
x86-64: Use _CET_NOTRACK in memcpy-ssse3-back.S
* sysdeps/x86_64/multiarch/memcpy-ssse3-back.S (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table. (MEMCPY): Likewise.
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcpy-ssse3-back.S | 6 |
2 files changed, 10 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog index 5b8f4d0aae..5bdb9325b8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,12 @@ 2018-07-18 H.J. Lu <hongjiu.lu@intel.com> + * sysdeps/x86_64/multiarch/memcpy-ssse3-back.S + (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump + to jump table. + (MEMCPY): Likewise. + +2018-07-18 H.J. Lu <hongjiu.lu@intel.com> + * sysdeps/x86_64/multiarch/strcmp-sse42.S (STRCMP_SSE42): Add _CET_NOTRACK before indirect jump to jump table. diff --git a/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S b/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S index 7e37035487..3cd1123326 100644 --- a/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S +++ b/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S @@ -39,7 +39,7 @@ lea TABLE(%rip), %r11; \ movslq (%r11, INDEX, SCALE), INDEX; \ lea (%r11, INDEX), INDEX; \ - jmp *INDEX; \ + _CET_NOTRACK jmp *INDEX; \ ud2 .section .text.ssse3,"ax",@progbits @@ -125,7 +125,7 @@ L(144bytesormore): sub $0x80, %rdx movslq (%r11, %r9, 4), %r9 add %r11, %r9 - jmp *%r9 + _CET_NOTRACK jmp *%r9 ud2 .p2align 4 @@ -155,7 +155,7 @@ L(copy_backward): sub $0x80, %rdx movslq (%r11, %r9, 4), %r9 add %r11, %r9 - jmp *%r9 + _CET_NOTRACK jmp *%r9 ud2 .p2align 4 |