[PATCH] D18895: [sanitizer] [SystemZ] Fix stack traces.
Ulrich Weigand via llvm-commits
llvm-commits at lists.llvm.org
Sat Apr 30 16:28:34 PDT 2016
uweigand added a comment.
OK, in that case I agree with option (2). Implementing -mbackchain in itself doesn't hurt anyway, if only for compatibility with GCC.
[ Note that -fno-omit-frame-pointer doesn't suffice on s390x to enable unwinding; even though functions up the call stack will then use a frame pointer, and save it into their register save area, you still do not know without consulting DWARF CFI *where* that save area is (since it is at the top of the frame and you don't know the frame size). ]
Repository:
rL LLVM
http://reviews.llvm.org/D18895
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