2009-10-14 Sebastian Pop <sebastian.pop@amd.com>

[pf3gnuchains/gcc-fork.git] / gcc / unwind-dw2.c

diff --git a/gcc/unwind-dw2.c b/gcc/unwind-dw2.c
index 82958b0..2208f17 100644 (file)
--- a/gcc/unwind-dw2.c
+++ b/gcc/unwind-dw2.c
@@ -1559,7 +1559,13 @@ uw_install_context_1 (struct _Unwind_Context *current,
 static inline _Unwind_Ptr
 uw_identify_context (struct _Unwind_Context *context)
 {
-  return _Unwind_GetCFA (context);
+  /* The CFA is not sufficient to disambiguate the context of a function
+     interrupted by a signal before establishing its frame and the context
+     of the signal itself.  */
+  if (STACK_GROWS_DOWNWARD)
+    return _Unwind_GetCFA (context) - _Unwind_IsSignalFrame (context);
+  else
+    return _Unwind_GetCFA (context) + _Unwind_IsSignalFrame (context);
 }