gdb/testsuite/gdb.btrace/delta.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2013-2024 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 require allow_btrace_tests
  21
  22 standard_testfile record_goto.c
  23 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
  24     return -1
  25 }
  26
  27 if ![runto_main] {
  28     return -1
  29 }
  30
  31 # proceed to some sequential code
  32 gdb_test "next"
  33
  34 # start tracing
  35 gdb_test_no_output "record btrace"
  36
  37 # we start without trace
  38 with_test_prefix "no trace" {
  39   gdb_test "info record" [multi_line \
  40     "Active record target: record-btrace" \
  41     "Recording format: .*" \
  42     "Recorded 0 instructions in 0 functions \\\(0 gaps\\\) for .*" \
  43     ]
  44   gdb_test "record instruction-history" "No trace\."
  45   gdb_test "record function-call-history" "No trace\."
  46 }
  47
  48 # we record each single-step, even if we have not seen a branch, yet.
  49 gdb_test "stepi"
  50
  51 proc check_trace {} {
  52   gdb_test "info record" [multi_line \
  53     "Active record target: record-btrace" \
  54     "Recording format: .*" \
  55     "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
  56     ]
  57 }
  58
  59 # make sure we don't extend the trace when we ask twice.
  60 with_test_prefix "once" {
  61   check_trace
  62 }
  63
  64 with_test_prefix "twice" {
  65   check_trace
  66 }
  67
  68 # check that we can reverse-stepi that instruction
  69 with_test_prefix "reverse" {
  70     gdb_test "reverse-stepi"
  71     gdb_test "info record" [multi_line \
  72       "Active record target: record-btrace" \
  73       "Recording format: .*" \
  74       "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
  75       "Replay in progress\.  At instruction 1\." \
  76     ]
  77 }
  78
  79 # and back
  80 with_test_prefix "forward" {
  81     gdb_test "stepi"
  82     check_trace
  83 }