gdb/testsuite/gdb.btrace/vdso.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2014-2017 Free Software Foundation, Inc.
   4 #
   5 # Contributed by Intel Corp. <markus.t.metzger@intel.com>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 #
  21 # Test that we can access the vdso memory during replay for stepping.
  22
  23 # check for btrace support
  24 if { [skip_btrace_tests] } { return -1 }
  25
  26 # start inferior
  27 standard_testfile
  28 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
  29     return -1
  30 }
  31 if ![runto_main] {
  32     return -1
  33 }
  34
  35 # capture the disassembly of gettimeofday while live debugging
  36 set live_gettimeofday [capture_command_output "disassemble gettimeofday" ""]
  37
  38 # trace the test code
  39 gdb_test_no_output "record btrace"
  40 gdb_test "stepi" ".*"
  41
  42 with_test_prefix "replay" {
  43         # start replaying
  44         gdb_test "record goto begin" ".*"
  45         gdb_test "info record" "Replay in progress\.\[^\\\r\\\n\]*"
  46
  47         # capture the disassembly of gettimeofday while replaying
  48         set replay_gettimeofday [capture_command_output "disassemble gettimeofday" ""]
  49
  50         # the two disassemblies must be identical
  51         if ![string compare $live_gettimeofday $replay_gettimeofday]  {
  52                 pass "disassemble gettimeofday"
  53         } else {
  54                 fail "disassemble gettimeofday"
  55         }
  56 }