gdb/testsuite/gdb.python/py-record-btrace.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2016-2021 Free Software Foundation, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Skip this test if btrace is disabled.
  19
  20 if { [skip_btrace_tests] } {
  21     untested "skipping btrace tests"
  22     return -1
  23 }
  24
  25 load_lib gdb-python.exp
  26
  27 standard_testfile
  28
  29 if [prepare_for_testing "failed to prepare" $testfile $srcfile] { return -1 }
  30
  31 # Skip this test if python is disabled.
  32
  33 if { [skip_python_tests] } {
  34     untested "skipping python tests"
  35     return -1
  36 }
  37
  38 if ![runto_main ] then {
  39     fail "can't run to main"
  40     return -1
  41 }
  42
  43 with_test_prefix "no or double record" {
  44     gdb_test "python print(gdb.current_recording())" "None"
  45
  46     gdb_test_no_output "python gdb.start_recording(\"btrace\")"
  47     gdb_test "python gdb.start_recording(\"btrace\")" \
  48         ".*gdb\.error: The process is already being recorded\..*" \
  49         "already recording"
  50
  51     gdb_test_no_output "python gdb.stop_recording()" "first"
  52     gdb_test "python gdb.stop_recording()" \
  53         ".*gdb\.error: No recording is currently active\..*" "second"
  54 }
  55
  56 with_test_prefix "preopened record btrace" {
  57     gdb_test_no_output "record btrace"
  58     gdb_test "python print(gdb.current_recording().method)" "btrace"
  59     gdb_test "python print(gdb.current_recording().format)" "pt|bts"
  60     gdb_test_no_output "python gdb.stop_recording()"
  61 }
  62
  63 with_test_prefix "prepare record" {
  64     gdb_test_no_output "python r = gdb.start_recording(\"btrace\")"
  65     gdb_test "python print(r.method)" "btrace"
  66     gdb_test "python print(r.format)" "pt|bts"
  67     gdb_test "stepi 100" ".*"
  68     gdb_test_no_output "python insn = r.instruction_history"
  69     gdb_test_no_output "python call = r.function_call_history"
  70     gdb_test_no_output "python i = insn\[0\]"
  71     gdb_test_no_output "python c = call\[0\]"
  72 }
  73
  74 with_test_prefix "replay begin" {
  75     gdb_test "python print(r.replay_position)" "None"
  76     gdb_test "python r.goto(r.begin)"
  77     gdb_test "python print(r.replay_position.number)" "1"
  78 }
  79
  80 with_test_prefix "replay end" {
  81     gdb_test "python r.goto(r.end)"
  82     gdb_test "python print(r.replay_position)" "None"
  83 }
  84
  85 with_test_prefix "instruction " {
  86     gdb_test "python print(i.number)" "1"
  87     gdb_test "python print(i.sal)" "symbol and line for .*"
  88     gdb_test "python print(i.pc)" "$decimal"
  89     if { $gdb_py_is_py3k == 0 } {
  90         gdb_test "python print(repr(i.data))" "<read-only buffer for $hex,.*>"
  91     } else {
  92         gdb_test "python print(repr(i.data))" "<memory at $hex>"
  93     }
  94     gdb_test "python print(i.decoded)" ".*"
  95     gdb_test "python print(i.size)" "$decimal"
  96     gdb_test "python print(i.is_speculative)" "False"
  97 }
  98
  99 with_test_prefix "function call" {
 100     gdb_test "python print(c.number)" "1"
 101     gdb_test "python print(c.symbol)" "main"
 102     gdb_test "python print(c.level)" "$decimal"
 103     gdb_test "python print(len(c.instructions))" "$decimal"
 104     gdb_test "python print(c.up)" "None"
 105     gdb_test "python print(c.prev)" "None"
 106     gdb_test "python print(c == c.next.prev)" "True"
 107 }
 108
 109 with_test_prefix "list" {
 110     gdb_test "python print(len(insn))" "100"
 111     gdb_test "python print(len(insn\[23:65\]))" "42"
 112     gdb_test "python print(insn\[17:\]\[2\].number)" "20"
 113     gdb_test "python print(i in insn)" "True"
 114     gdb_test "python print(i in call)" "False"
 115     gdb_test "python print(c in insn)" "False"
 116     gdb_test "python print(c in call)" "True"
 117     gdb_test "python print(insn.index(i))" "0"
 118     gdb_test "python print(insn.count(i))" "1"
 119 }
 120
 121 with_test_prefix "sublist" {
 122     gdb_test_no_output "python s1 = insn\[3:72:5\]"
 123     gdb_test_no_output "python s2 = s1\[2:13:3\]"
 124     gdb_test_no_output "python s3 = s1\[13:2:-3\]"
 125     gdb_test_no_output "python s4 = insn\[::-1\]"
 126
 127     gdb_test "python print(\[i.number for i in s1\])" "\\\[4, 9, 14, 19, 24, 29, 34, 39, 44, 49, 54, 59, 64, 69\\\]"
 128     gdb_test "python print(\[i.number for i in s2\])" "\\\[14, 29, 44, 59\\\]"
 129     gdb_test "python print(\[i.number for i in s3\])" "\\\[69, 54, 39, 24\\\]"
 130
 131     gdb_test "python print(len(s1))" "14"
 132     gdb_test "python print(len(s2))" "4"
 133     gdb_test "python print(len(s3))" "4"
 134     gdb_test "python print(len(s4))" "100"
 135
 136     gdb_test "python print(s4\[5\].number)" "95"
 137     gdb_test "python print(s4\[-5\].number)" "5"
 138     gdb_test "python print(s4\[100\].number)" ".*IndexError.*"
 139     gdb_test "python print(s4\[-101\].number)" ".*IndexError.*"
 140 }
 141
 142 with_test_prefix "level" {
 143     gdb_test_no_output "python gdb.stop_recording()"
 144     gdb_test "break inner" "Breakpoint.*"
 145     gdb_test "continue" "Continuing\..*"
 146     gdb_test_no_output "record btrace"
 147     gdb_test "step" "outer ().*" "step one"
 148     gdb_test "step" "main ().*" "step two"
 149     gdb_test "python print(gdb.current_recording().function_call_history\[0\].level)" "1"
 150     gdb_test "python print(gdb.current_recording().function_call_history\[1\].level)" "0"
 151 }