From: kettenis <kettenis>
Date: Sat, 24 Jan 2004 21:34:45 +0000 (+0000)
Subject: * sparc-tdep.c (sparc_fetch_instruction): Return zero if we can't
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=311ab829345d00095b061b89690197f8656e9963;p=pf3gnuchains%2Fpf3gnuchains3x.git

* sparc-tdep.c (sparc_fetch_instruction): Return zero if we can't
read the instruction at PC.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 08e5395495..a77b6b2973 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,8 @@
 2004-01-24  Mark Kettenis  <kettenis@gnu.org>
 
+	* sparc-tdep.c (sparc_fetch_instruction): Return zero if we can't
+	read the instruction at PC.
+
 	* sparcnbsd-tdep.c (GDB_OSABI_NETBSD_CORE): Define, based on the
 	value of GDB_OSABI_DEFAULT.
 	(sparcnbsd_core_osabi_sniffer): Return GDB_OSABI_NETBSD_CORE
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index c2f3cfb1f6..fcaf0f437b 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -96,7 +96,9 @@ sparc_fetch_instruction (CORE_ADDR pc)
   unsigned long insn;
   int i;
 
-  read_memory (pc, buf, sizeof (buf));
+  /* If we can't read the instruction at PC, return zero.  */
+  if (target_read_memory (pc, buf, sizeof (buf)))
+    return 0;
 
   insn = 0;
   for (i = 0; i < sizeof (buf); i++)