> -----Original Message----- > From: Lu, Hongjiu > Sent: Monday, April 23, 2018 1:56 PM > To: gccpat...@intel.com > Cc: Tsimbalist, Igor V <igor.v.tsimbal...@intel.com>; Uros Bizjak > <ubiz...@gmail.com> > Subject: [PATCH] x86/cet: Use unsigned integer to unwind shadow stack > > Use unsigned integer to unwind shadow stack by replacing jle with jbe and > jg with ja. > > OK for trunk?
OK. Igor > H.J. > ---- > PR target/85489 > * config/x86/sjlj.S (GTM_longjmp): Replace jle/jg with jbe/ja. > --- > libitm/config/x86/sjlj.S | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/libitm/config/x86/sjlj.S b/libitm/config/x86/sjlj.S > index 3cac9099c9e..e5cdbab48a7 100644 > --- a/libitm/config/x86/sjlj.S > +++ b/libitm/config/x86/sjlj.S > @@ -235,7 +235,7 @@ SYM(GTM_longjmp): > /* If # of frames is greater 255 then loop > and adjust. */ > cmpq $255, %rcx > - jle .L3 > + jbe .L3 > movl $255, %edi > .p2align 4,,10 > .p2align 3 > @@ -243,7 +243,7 @@ SYM(GTM_longjmp): > incsspq %rdi > subq $255, %rcx > cmpq $255, %rcx > - jg .L4 > + ja .L4 > .L3: > incsspq %rcx > .L1: > @@ -273,7 +273,7 @@ SYM(GTM_longjmp): > /* If # of frames is greater 255 then loop > and adjust. */ > cmpl $255, %ecx > - jle .L3 > + jbe .L3 > pushl %eax > movl $255, %eax > .p2align 4,,10 > @@ -282,7 +282,7 @@ SYM(GTM_longjmp): > incsspd %eax > subl $255, %ecx > cmpl $255, %ecx > - jg .L4 > + ja .L4 > popl %eax > .L3: > incsspd %ecx > -- > 2.14.3
