gdb/testsuite/gdb.btrace/delta.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 delta.exp $testfile $srcfile] {
  26     return -1
  27 }
  28 if ![runto_main] {
  29     return -1
  30 }
  31
  32 # proceed to some sequential code
  33 gdb_test "next"
  34
  35 # start tracing
  36 gdb_test_no_output "record btrace"
  37
  38 # we start without trace
  39 with_test_prefix "no trace" {
  40   gdb_test "info record" [join [list \
  41     "Active record target: record-btrace" \
  42     "Recording format: .*" \
  43     "Recorded 0 instructions in 0 functions for .*" \
  44     ] "\r\n"]
  45   gdb_test "record instruction-history" "No trace\."
  46   gdb_test "record function-call-history" "No trace\."
  47 }
  48
  49 # we record each single-step, even if we have not seen a branch, yet.
  50 gdb_test "stepi"
  51
  52 proc check_trace {} {
  53   gdb_test "info record" [join [list \
  54     "Active record target: record-btrace" \
  55     "Recording format: .*" \
  56     "Recorded 1 instructions in 1 functions for .*" \
  57     ] "\r\n"]
  58   gdb_test "record instruction-history /f 1" \
  59     "1\t   0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tmov *\\\$0x0,%eax\r"
  60   gdb_test "record function-call-history /c 1" "1\tmain"
  61 }
  62
  63 # make sure we don't extend the trace when we ask twice.
  64 with_test_prefix "once" {
  65   check_trace
  66 }
  67
  68 with_test_prefix "twice" {
  69   check_trace
  70 }
  71
  72 # check that we can reverse-stepi that instruction
  73 gdb_test "reverse-stepi"
  74 gdb_test "info record" [join [list \
  75   "Active record target: record-btrace" \
  76   "Recording format: .*" \
  77   "Recorded 1 instructions in 1 functions for .*" \
  78   "Replay in progress\.  At instruction 1\." \
  79   ] "\r\n"] "reverse-stepi"
  80
  81 # and back
  82 gdb_test "stepi"
  83 gdb_test "info record" [join [list \
  84   "Active record target: record-btrace" \
  85   "Recording format: .*" \
  86   "Recorded 1 instructions in 1 functions for .*" \
  87   ] "\r\n"] "and back"