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authorH.J. Lu <hjl.tools@gmail.com>2018-07-18 08:07:24 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-07-18 08:07:32 -0700
commite2d40a8822be27ddbd512599ea1955e52f90bf87 (patch)
tree007fd4b8b0de078f875de8b47fdad0d15021693c
parent77a8ae0948e651a4c121a806c1eb8ab33a7d7e77 (diff)
x86-64: Use _CET_NOTRACK in memcmp-sse4.S
* sysdeps/x86_64/multiarch/memcmp-sse4.S (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table.
-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/x86_64/multiarch/memcmp-sse4.S2
2 files changed, 6 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index b594059f94..d1c5235849 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2018-07-18 H.J. Lu <hongjiu.lu@intel.com>
+ * sysdeps/x86_64/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-rep.S
(BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump
to jump table.
diff --git a/sysdeps/x86_64/multiarch/memcmp-sse4.S b/sysdeps/x86_64/multiarch/memcmp-sse4.S
index 0d96d6b775..8e164f2cb6 100644
--- a/sysdeps/x86_64/multiarch/memcmp-sse4.S
+++ b/sysdeps/x86_64/multiarch/memcmp-sse4.S
@@ -31,7 +31,7 @@
lea TABLE(%rip), %r11; \
movslq (%r11, INDEX, SCALE), %rcx; \
add %r11, %rcx; \
- jmp *%rcx; \
+ _CET_NOTRACK jmp *%rcx; \
ud2
/* Warning!