gdb/testsuite/gdb.btrace/stepi.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2013-2015 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 # check for btrace support
  21 if { [skip_btrace_tests] } { return -1 }
  22
  23 # start inferior
  24 standard_testfile x86-record_goto.S
  25 if [prepare_for_testing stepi.exp $testfile $srcfile] {
  26     return -1
  27 }
  28
  29 global gdb_prompt
  30
  31 if ![runto_main] {
  32     return -1
  33 }
  34
  35 proc check_replay_at { insn } {
  36   gdb_test "info record" [join [list \
  37     "Active record target: record-btrace" \
  38     "Recording format: .*" \
  39     "Recorded 40 instructions in 16 functions for .*" \
  40     "Replay in progress\.  At instruction $insn\." \
  41     ] "\r\n"]
  42 }
  43
  44 # trace the call to the test function
  45 gdb_test_no_output "record btrace"
  46 gdb_test "next"
  47
  48 # we start with stepping to make sure that the trace is fetched automatically
  49 gdb_test "reverse-stepi" ".*fun4\.5.*"
  50 gdb_test "reverse-stepi" ".*fun4\.5.*"
  51
  52 # let's check where we are in the trace
  53 with_test_prefix "reverse-stepi to 39" { check_replay_at 39 }
  54
  55 # let's step forward and check again
  56 gdb_test "stepi" ".*fun4\.5.*"
  57 with_test_prefix "stepi to 40" { check_replay_at 40 }
  58
  59 # with the next step, we stop replaying
  60 gdb_test "stepi" ".*main\.3.*"
  61 gdb_test "info record" [join [list \
  62   "Active record target: record-btrace" \
  63   "Recording format: .*" \
  64   "Recorded 40 instructions in 16 functions for \[^\\\r\\\n\]*" \
  65   ] "\r\n"] "stepi to live"
  66
  67 # let's step from a goto position somewhere in the middle
  68 gdb_test "record goto 22" ".*fun3\.2.*"
  69 with_test_prefix "goto 22" { check_replay_at 22 }
  70
  71 gdb_test "stepi" ".*fun1\.1.*"
  72 with_test_prefix "stepi to 23" { check_replay_at 23 }
  73
  74 # and back again
  75 gdb_test "reverse-stepi" ".*fun3\.2.*"
  76 gdb_test "reverse-stepi" ".*fun3\.1.*"
  77 with_test_prefix "reverse-stepi to 21" { check_replay_at 21 }
  78
  79 # let's try to step off the left end
  80 gdb_test "record goto begin" ".*main\.2.*"
  81 with_test_prefix "goto begin" { check_replay_at 1 }
  82
  83 gdb_test "reverse-stepi" "No more reverse-execution history\.\r\n.*main\.2.*"
  84 gdb_test "reverse-stepi" "No more reverse-execution history\.\r\n.*main\.2.*"
  85 with_test_prefix "reverse-stepi at begin" { check_replay_at 1 }
  86
  87 # we can step forward, though
  88 gdb_test "stepi" ".*fun4\.1.*"
  89 with_test_prefix "stepi to 2" { check_replay_at 2 }
  90
  91 # let's try to step off the left end again
  92 gdb_test "reverse-stepi" ".*main\.2.*"
  93 gdb_test "reverse-stepi" "No more reverse-execution history\.\r\n.*main\.2.*"
  94 gdb_test "reverse-stepi" "No more reverse-execution history\.\r\n.*main\.2.*"
  95 with_test_prefix "reverse-stepi at begin" { check_replay_at 1 }