gdb/testsuite/gdb.btrace/stepi.exp

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