[djgpp/commit] Fix go32_pid_to_str and go32_thread_alive

[Eli Zaretskii <eliz@gnu.org>]

The patch below fixes what GDB prints to identify the inferior
process, and also avoids thinking that null_ptid is a live thread.

Committed.

2009-05-01  Eli Zaretskii  <eliz@gnu.org>

	* go32-nat.c (go32_pid_to_str): Call normal_pid_to_str instead of
	printing a bogus "Thread <main>".
	(go32_thread_alive): Don't return 1 for null_ptid.

Index: gdb/go32-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/go32-nat.c,v
retrieving revision 1.71
diff -u -r1.71 go32-nat.c
--- gdb/go32-nat.c	19 Apr 2009 18:29:33 -0000	1.71
+++ gdb/go32-nat.c	1 May 2009 08:12:36 -0000
@@ -870,15 +870,13 @@
 static int
 go32_thread_alive (struct target_ops *ops, ptid_t ptid)
 {
-  return 1;
+  return !ptid_equal (inferior_ptid, null_ptid);
 }
 
 static char *
 go32_pid_to_str (struct target_ops *ops, ptid_t ptid)
 {
-  static char buf[64];
-  xsnprintf (buf, sizeof buf, "Thread <main>");
-  return buf;
+  return normal_pid_to_str (ptid);
 }
 
 static void