From e0e9434c89d87e12220d5efd8d56ac83bdd26dfa Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Fri, 8 Jul 2011 16:02:59 +0000
Subject: [PATCH] 	* dwarf2expr.c (execute_stack_op): Add QUIT.

---
 gdb/ChangeLog    | 4 ++++
 gdb/dwarf2expr.c | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 7a76008..e33a1da 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2011-07-08  Tom Tromey  <tromey@redhat.com>
+
+	* dwarf2expr.c (execute_stack_op): Add QUIT.
+
 2011-07-07  Hui Zhu  <teawater@gmail.com>
 
 	Revert:
diff --git a/gdb/dwarf2expr.c b/gdb/dwarf2expr.c
index c5ea85d..4522eb8 100644
--- a/gdb/dwarf2expr.c
+++ b/gdb/dwarf2expr.c
@@ -521,6 +521,10 @@ execute_stack_op (struct dwarf_expr_context *ctx,
       LONGEST offset;
       struct value *result_val = NULL;
 
+      /* The DWARF expression might have a bug causing an infinite
+	 loop.  In that case, quitting is the only way out.  */
+      QUIT;
+
       switch (op)
 	{
 	case DW_OP_lit0:
-- 
2.7.4