From 177824e23274591dd549db0c0a4b569ee4ccd96b Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 18 Jul 2018 07:58:53 -0700 Subject: [PATCH] i386: Use _CET_NOTRACK in memcmp-sse4.S * sysdeps/i386/i686/multiarch/memcmp-sse4.S (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table. --- ChangeLog | 6 ++++++ sysdeps/i386/i686/multiarch/memcmp-sse4.S | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index b466774bd7..5c2dd10248 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2018-07-18 H.J. Lu + + * 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 * sysdeps/i386/i686/multiarch/memset-sse2.S diff --git a/sysdeps/i386/i686/multiarch/memcmp-sse4.S b/sysdeps/i386/i686/multiarch/memcmp-sse4.S index be37108987..bc2cb2729d 100644 --- a/sysdeps/i386/i686/multiarch/memcmp-sse4.S +++ b/sysdeps/i386/i686/multiarch/memcmp-sse4.S @@ -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 -- 2.43.5