[HWASan] Fixed slow DWARF unwinding.

Summary: CFA was setup incorrectly, as there is an 8-byte gap at the top of the stack for SP 16-byte alignment purposes.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: kubamracek, javed.absar, #sanitizers, llvm-commits, pcc

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D60798

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358535 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed