Hi!
In order to have fast unwinding (which doesn't use unwind info)
work properly on s390{,x}, -mbackchain is needed (similarly to
-fno-omit-frame-pointer needed everywhere and -mno-omit-leaf-frame-pointer
on x86). Committed to trunk:
2017-02-11 Jakub Jelinek <ja...@redhat.com>
PR sanitizer/79341
* g++.dg/asan/deep-stack-uaf-1.C: New test.
--- gcc/testsuite/g++.dg/asan/deep-stack-uaf-1.C.jj 2014-11-20
08:32:13.000000000 +0100
+++ gcc/testsuite/g++.dg/asan/deep-stack-uaf-1.C 2017-02-11
19:35:50.776542716 +0100
@@ -5,6 +5,7 @@
// { dg-set-target-env-var ASAN_OPTIONS "malloc_context_size=120:redzone=512" }
// { dg-options "-fno-omit-frame-pointer -fno-optimize-sibling-calls" }
// { dg-additional-options "-mno-omit-leaf-frame-pointer" { target { i?86-*-*
x86_64-*-* } } }
+// { dg-additional-options "-mbackchain" { target { s390*-*-* } } }
// { dg-shouldfail "asan" }
#include <stdlib.h>
Jakub
