AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

s390: Fix lay overflow when too many arguments on stack

Browse Source 
R=bjaideep@ca.ibm.com, joransiu@ca.ibm.com

Bug: 
Change-Id: Ia9fa7785b0f508775f38547e56f07bc7ef9ee03d
Reviewed-on: https://chromium-review.googlesource.com/557928
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Jaideep Bajwa <bjaideep@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#47055}
This commit is contained in:
Junliang Yan 2017-06-30 13:39:58 -04:00 committed by Commit Bot
parent 788d828948
commit 04ac652862
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/s390/macro-assembler-s390.cc
View File

@ -951,8 +951,13 @@ int TurboAssembler::LeaveFrame(StackFrame::Type type, int stack_adjustment) {
// Drop the execution stack down to the frame pointer and restore
// the caller frame pointer, return address and constant pool pointer.
LoadP(r14, MemOperand(fp, StandardFrameConstants::kCallerPCOffset));
lay(r1, MemOperand(
fp, StandardFrameConstants::kCallerSPOffset + stack_adjustment));
if (is_int20(StandardFrameConstants::kCallerSPOffset + stack_adjustment)) {
lay(r1, MemOperand(fp, StandardFrameConstants::kCallerSPOffset +
stack_adjustment));
} else {
AddP(r1, fp,
Operand(StandardFrameConstants::kCallerSPOffset + stack_adjustment));
}
LoadP(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
LoadRR(sp, r1);
int frame_ends = pc_offset();