From: Douglas B Rupp <rupp@gnat.com>
Date: Fri, 18 Apr 2003 22:43:28 +0000 (-0400)
Subject: unwind-dw2-fde.c (__register_frame_info_bases): Check for null begin parameter (as... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7008a11babeef9ef124d932e13a3e0a4e6410a0f;p=gcc.git

unwind-dw2-fde.c (__register_frame_info_bases): Check for null begin parameter (as well as pointer to null).

	* unwind-dw2-fde.c (__register_frame_info_bases): Check for
	null begin parameter (as well as pointer to null).
	(__deregister_frame_info_bases): Likewise.

From-SVN: r65799
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a4681a71115..8d1fb696680 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2003-04-18  Douglas B Rupp  <rupp@gnat.com>
+
+	* unwind-dw2-fde.c (__register_frame_info_bases): Check for
+	null begin parameter (as well as pointer to null).
+	(__deregister_frame_info_bases): Likewise.
+
 2003-04-18  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* function.c (purge_addressof_1): For ADDRESSOF, see if SUB is a
diff --git a/gcc/unwind-dw2-fde.c b/gcc/unwind-dw2-fde.c
index b1bd8c03111..31fc1c47597 100644
--- a/gcc/unwind-dw2-fde.c
+++ b/gcc/unwind-dw2-fde.c
@@ -78,7 +78,7 @@ __register_frame_info_bases (void *begin, struct object *ob,
 			     void *tbase, void *dbase)
 {
   /* If .eh_frame is empty, don't register at all.  */
-  if (*(uword *) begin == 0)
+  if ((uword *) begin == 0 || *(uword *) begin == 0)
     return;
 
   ob->pc_begin = (void *)-1;
@@ -176,7 +176,7 @@ __deregister_frame_info_bases (void *begin)
   struct object *ob = 0;
 
   /* If .eh_frame is empty, we haven't registered.  */
-  if (*(uword *) begin == 0)
+  if ((uword *) begin == 0 || *(uword *) begin == 0)
     return ob;
 
   init_object_mutex_once ();