Merge GDB 7.5.1

gdb/testsuite/gdb.base/step-bt.exp

 # Copyright 2006-2012 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/>.
 
 # The intent of this testcase is to assure that backtrace works while
 # single-stepping the instructions that prepare to call a function.
 
-if $tracelevel then {
-    strace $tracelevel
-}
-
 
 set testfile step-bt
 set srcfile ${testfile}.c
 set binfile ${objdir}/${subdir}/${testfile}
 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     untested "Couldn't compile test program"
     return -1
 }
 
 # Get things started.
@@ skipping 31 matching lines @@
          "backtrace after first instruction step"
 
 gdb_test "stepi" \
          ".*" \
          "step second instruction"
 
 gdb_test "bt" \
          "#0 +(0x\[0-9a-z\]+ in )?hello .*#1 +(0x\[0-9a-z\]* in )?main.*" \
          "backtrace after second instruction step"