gdb/testsuite/gdb.btrace/delta.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2013-2020 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 if { [skip_btrace_tests] } {
  21     unsupported "target does not support record-btrace"
  22     return -1
  23 }
  24
  25 standard_testfile record_goto.c
  26 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
  27     return -1
  28 }
  29
  30 if ![runto_main] {
  31     untested "failed to run to main"
  32     return -1
  33 }
  34
  35 # proceed to some sequential code
  36 gdb_test "next"
  37
  38 # start tracing
  39 gdb_test_no_output "record btrace"
  40
  41 # we start without trace
  42 with_test_prefix "no trace" {
  43   gdb_test "info record" [multi_line \
  44     "Active record target: record-btrace" \
  45     "Recording format: .*" \
  46     "Recorded 0 instructions in 0 functions \\\(0 gaps\\\) for .*" \
  47     ]
  48   gdb_test "record instruction-history" "No trace\."
  49   gdb_test "record function-call-history" "No trace\."
  50 }
  51
  52 # we record each single-step, even if we have not seen a branch, yet.
  53 gdb_test "stepi"
  54
  55 proc check_trace {} {
  56   gdb_test "info record" [multi_line \
  57     "Active record target: record-btrace" \
  58     "Recording format: .*" \
  59     "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
  60     ]
  61   gdb_test "record instruction-history /f 1" \
  62     "1\t   0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tmov *\\\$0x0,%eax\r"
  63   gdb_test "record function-call-history /c 1" "1\tmain"
  64 }
  65
  66 # make sure we don't extend the trace when we ask twice.
  67 with_test_prefix "once" {
  68   check_trace
  69 }
  70
  71 with_test_prefix "twice" {
  72   check_trace
  73 }
  74
  75 # check that we can reverse-stepi that instruction
  76 gdb_test "reverse-stepi"
  77 gdb_test "info record" [multi_line \
  78   "Active record target: record-btrace" \
  79   "Recording format: .*" \
  80   "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
  81   "Replay in progress\.  At instruction 1\." \
  82   ] "reverse-stepi"
  83
  84 # and back
  85 gdb_test "stepi"
  86 gdb_test "info record" [multi_line \
  87   "Active record target: record-btrace" \
  88   "Recording format: .*" \
  89   "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
  90   ] "and back"