Index: testsuite/gdb.base/default.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/default.exp,v
retrieving revision 1.31
diff -u -p -u -r1.31 default.exp
--- testsuite/gdb.base/default.exp	13 Aug 2009 14:58:27 -0000	1.31
+++ testsuite/gdb.base/default.exp	17 Sep 2009 16:33:19 -0000
@@ -598,7 +598,7 @@ gdb_test "show complaints" "Max number o
 #test show confirm
 gdb_test "show confirm" "Whether to confirm potentially dangerous operations is o\[a-z\]*." "show confirm"
 #test show convenience
-gdb_test "show convenience" "No debugger convenience variables now defined.(\[^\r\n\]*\[\r\n\])+Convenience variables have names starting with \".\";(\[^\r\n\]*\[\r\n\])+use \"set\" as in \"set .foo = 5\" to define them." "show convenience"
+gdb_test "show convenience" "\\\$_siginfo = void" "show convenience"
 #test show directories
 gdb_test "show directories" "Source directories searched: .cdir\[:;\].cwd" "show directories"
 #test show editing
Index: doc/gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.624
diff -u -p -u -r1.624 gdb.texinfo
--- doc/gdb.texinfo	15 Sep 2009 18:51:25 -0000	1.624
+++ doc/gdb.texinfo	17 Sep 2009 16:33:19 -0000
@@ -7819,8 +7819,10 @@ the program being debugged terminates.
 
 @item $_siginfo
 @vindex $_siginfo@r{, convenience variable}
-The variable @code{$_siginfo} is bound to extra signal information
-inspection (@pxref{extra signal information}).
+The variable @code{$_siginfo} contains extra signal information
+(@pxref{extra signal information}).  Note that @code{$_siginfo}
+could be empty, if the application has not yet received any signals.
+For example, it will be empty before you execute the @code{run} command.
 @end table
 
 On HP-UX systems, if you refer to a function or variable name that