Hi!
Weirdly this test fails just on some boxes and others succeeds
(x86_64-linux, -Os only). The problem seems to be in the libasan fast
unwinder, if the routine is shrink-wrapped, even when it is compiled with
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer, if the memory
dereference which is supposed to segfault is outside of the region with
valid frame pointer, the backtrace will still be wrong.
Hopefully fixed by adding -fno-shrink-wrap.
2012-12-19 Jakub Jelinek <ja...@redhat.com>
* c-c++-common/asan/null-deref-1.c: Add -fno-shrink-wrap to
dg-options.
--- gcc/testsuite/c-c++-common/asan/null-deref-1.c.jj 2012-12-13
00:02:50.000000000 +0100
+++ gcc/testsuite/c-c++-common/asan/null-deref-1.c 2012-12-19
12:30:05.354962160 +0100
@@ -1,5 +1,5 @@
/* { dg-do run } */
-/* { dg-options "-fno-omit-frame-pointer" } */
+/* { dg-options "-fno-omit-frame-pointer -fno-shrink-wrap" } */
/* { dg-additional-options "-mno-omit-leaf-frame-pointer" { target { i?86-*-*
x86_64-*-* } } } */
/* { dg-shouldfail "asan" } */
Jakub
