[RFA] Fix for failing gdb.base/auxv.exp on Linux

[ppluzhnikov@google.com (Paul Pluzhnikov)]

Greetings,

gdb.base/auxv.exp is failing for me on Linux, because 'info auxv'
from live process prints several trailing AT_NULL entries:

(gdb) inf auxv
32   AT_SYSINFO           Special system info/entry points 0xffffe400
33   AT_SYSINFO_EHDR      System-supplied DSO's ELF header 0xffffe000
...
15   AT_PLATFORM          String identifying platform    0xffffda3b "i686"
0    AT_NULL              End of vector                  0x0
0    AT_NULL              End of vector                  0x0
0    AT_NULL              End of vector                  0x0

Attached patch terminates the list at first AT_NULL, and makes the
test succeed.

Ok to commit?

--
Paul Pluzhnikov


2008-07-17  Paul Pluzhnikov  <ppluzhnikov@google.com>

	* auxv.c (fprint_target_auxv): Stop at AT_NULL.


Index: auxv.c
===================================================================
RCS file: /cvs/src/src/gdb/auxv.c,v
retrieving revision 1.11
diff -u -p -u -r1.11 auxv.c
--- auxv.c	4 May 2008 09:28:27 -0000	1.11
+++ auxv.c	17 Jul 2008 18:57:18 -0000
@@ -246,6 +246,8 @@ fprint_target_auxv (struct ui_file *file
 	  break;
 	}
       ++ents;
+      if (type == AT_NULL)
+	break;
     }
 
   xfree (data);