Merge GDB 7.5.1

gdb/testsuite/gdb.trace/backtrace.exp

 #   Copyright 1998, 2007-2012 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # This file was written by Michael Snyder (msnyder@cygnus.com)
 
 load_lib "trace-support.exp";
 
-if $tracelevel then {
-    strace $tracelevel
-}
-
 
 gdb_exit
 gdb_start
 
-set testfile "actions"
-set srcfile ${testfile}.c
-set binfile $objdir/$subdir/backtrace
+standard_testfile actions.c
 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
           executable {debug nowarnings}] != "" } {
     untested backtrace.exp
     return -1
 }
 gdb_load $binfile
 gdb_test "tstop"       ".*" ""
 gdb_test "tfind none"  ".*" ""
 runto_main
 gdb_reinitialize_dir $srcdir/$subdir
 
-# We generously give ourselves one "pass" if we successfully 
-# detect that this test cannot be run on this target!
 if { ![gdb_target_supports_trace] } then {
-    pass "Current target does not support trace"
+    unsupported "Current target does not support trace"
     return 1;
 
 }
 
 #
 # test backtraces in trace frames
 #
 
 set testline1 0
 set testline2 0
@@ skipping 275 matching lines @@
 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
         "TDP $tdp6:" ""
 gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
 
 gdb_test "printf \"x \%d x\\n\", depth == 3" \
         "x 0 x" \
         "1.13: trace in recursion: depth not equal to 3"
 
 # Finished!
 gdb_test "tfind none" ".*" ""