gdb/testsuite/gdb.trace/actions-changed.exp

   1 # Copyright 2013-2017 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 load_lib trace-support.exp
  17
  18 standard_testfile
  19
  20 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  21     return -1
  22 }
  23
  24 proc test_actions_changed { } {
  25     gdb_breakpoint "end"
  26
  27     gdb_test "trace subr" "Tracepoint .*" \
  28         "tracepoint at subr"
  29
  30     # The first set of tests are regression tests for a GDB bug where
  31     # the while-stepping count of a tracepoint would be left stale if
  32     # the tracepoint's actions were redefined, and the new action list
  33     # had no while-stepping action.
  34
  35     # First pass, define simple action.
  36     with_test_prefix "1" {
  37         gdb_trace_setactions "define simple action" \
  38             "" \
  39             "collect parm" "^$"
  40
  41         gdb_test_no_output "tstart"
  42
  43         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=1\\) .*" \
  44             "advance through tracing"
  45
  46         gdb_test "tstatus" ".*Collected 1 trace frame.*" \
  47             "collected 1 trace frame"
  48
  49         gdb_test_no_output "tstop"
  50     }
  51
  52     # Redefine action, run second trace.
  53     with_test_prefix "2" {
  54         gdb_trace_setactions "redefine simple action" \
  55             "" \
  56             "collect keeping, busy" "^$"
  57
  58         gdb_test_no_output "tstart"
  59
  60         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=2\\) .*" \
  61             "advance through tracing"
  62
  63         gdb_test "tstatus" ".*Collected 1 trace frame.*" \
  64             "collected 1 trace frame"
  65
  66         gdb_test_no_output "tstop"
  67     }
  68
  69     # Redefine to stepping action, run third trace.
  70     with_test_prefix "3" {
  71         gdb_trace_setactions "redefine to stepping action" \
  72             "" \
  73             "collect parm" "^$" \
  74             "while-stepping 5" "^$" \
  75             "collect parm" "^$" \
  76             "end" "^$"
  77
  78         gdb_test_no_output "tstart"
  79
  80         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=3\\) .*" \
  81             "advance through tracing"
  82
  83         gdb_test "tstatus" ".*Collected 6 trace frames.*" \
  84             "collected 6 trace frames"
  85
  86         gdb_test_no_output "tstop"
  87     }
  88
  89     # Redefine to non-stepping, run fourth trace.
  90     with_test_prefix "4" {
  91         gdb_trace_setactions "redefine to non-stepping action" \
  92             "" \
  93             "collect parm" "^$"
  94
  95         gdb_test_no_output "tstart"
  96
  97         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=4\\) .*" \
  98             "advance through tracing"
  99
 100         gdb_test "tstatus" ".*Collected 1 trace frame.*" \
 101             "collected 1 trace frame"
 102
 103         gdb_test_no_output "tstop"
 104     }
 105
 106     # The following tests are related to the above, but use two
 107     # tracepoints.  They are regression tests for a GDB bug where only
 108     # the first tracepoint would end up with the step count set.
 109
 110     # Store the first tracepoint's number.
 111     gdb_test_no_output "set \$prev_tpnum=\$tpnum" "store previous \$tpnum"
 112
 113     # And here's the second tracepoint.
 114     gdb_test "trace subr2" "Tracepoint .*" "tracepoint at subr2"
 115
 116     # Set a stepping action in both tracepoints, with the "commands"
 117     # command.
 118     with_test_prefix "5" {
 119         gdb_trace_setcommands \
 120             "redefine 2 tracepoints to stepping action, using commands" \
 121             "\$prev_tpnum-\$tpnum" \
 122             "collect parm" "^$" \
 123             "while-stepping 5" "^$" \
 124             "collect parm" "^$" \
 125             "end" "^$"
 126
 127         gdb_test_no_output "tstart"
 128
 129         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=5\\) .*" \
 130             "advance through tracing"
 131
 132         gdb_test "tstatus" ".*Collected 12 trace frames.*" \
 133             "collected 12 trace frames"
 134
 135         gdb_test_no_output "tstop"
 136     }
 137
 138     # Redefine the actions of both tracepoints to non-stepping, also
 139     # using the "commands" command.
 140     with_test_prefix "6" {
 141         gdb_trace_setcommands \
 142             "redefine 2 tracepoints to non-stepping action, using commands" \
 143             "\$prev_tpnum-\$tpnum" \
 144             "collect parm" "^$"
 145
 146         gdb_test_no_output "tstart"
 147
 148         gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=6\\) .*" \
 149             "advance through tracing"
 150
 151         gdb_test "tstatus" ".*Collected 2 trace frame.*" \
 152             "collected 2 trace frames"
 153
 154         gdb_test_no_output "tstop"
 155     }
 156 }
 157
 158 # Check whether the target supports tracepoints.
 159
 160 clean_restart $testfile
 161
 162 if ![runto_main] {
 163     fail "can't run to main to check for trace support"
 164     return -1
 165 }
 166
 167 if ![gdb_target_supports_trace] {
 168     unsupported "current target does not support trace"
 169     return -1
 170 }
 171
 172 test_actions_changed
 173
 174 return 0