* sparc-nat.c (sparc_xfer_wcookie): Signal EOF. Tweak comment.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 2ef636369665dbebfbcb06945e750e6f6a65e758..22c6a80ede04925d8b135d0c9721b3fb956f66f0 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2006-08-18  Mark Kettenis  <kettenis@gnu.org>
+
+       * sparc-nat.c (sparc_xfer_wcookie): Signal EOF.  Tweak comment.
+
 2006-08-18  Daniel Jacobowitz  <dan@codesourcery.com>
 
        * dwarf2read.c (quirk_gcc_member_function_pointer): New.

diff --git a/gdb/sparc-nat.c b/gdb/sparc-nat.c
index ac2a0c8231406e7d5db99b25339445bc27fe0799..368b8ef33e0b0d7e647f18beb441f7f7cae5fbec 100644 (file)
--- a/gdb/sparc-nat.c
+++ b/gdb/sparc-nat.c
@@ -264,14 +264,16 @@ sparc_xfer_wcookie (struct target_ops *ops, enum target_object object,
   gdb_assert (object == TARGET_OBJECT_WCOOKIE);
   gdb_assert (readbuf && writebuf == NULL);
 
-  if (offset >= sizeof (unsigned long))
+  if (offset == sizeof (unsigned long))
+    return 0;                  /* Signal EOF.  */
+  if (offset > sizeof (unsigned long))
     return -1;
 
 #ifdef PT_WCOOKIE
   /* If PT_WCOOKIE is defined (by <sys/ptrace.h>), assume we're
      running on an OpenBSD release that uses StackGhost (3.1 or
-     later).  As of release 3.4, OpenBSD doesn't use a randomized
-     cookie yet, but a future release probably will.  */
+     later).  Since release 3.6, OpenBSD uses a fully randomized
+     cookie.  */
   {
     int pid;