gdb/testsuite/gdb.threads/step-over-lands-on-breakpoint.exp

   1 # Copyright (C) 2014-2022 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 # Test that when a step-over lands on a breakpoint, that breakpoint
  17 # hit is reported.
  18
  19 standard_testfile
  20 set executable ${testfile}
  21
  22 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
  23          executable [list debug "incdir=${objdir}"]] != "" } {
  24     return -1
  25 }
  26
  27 # The test proper.  DISPLACED is true if we should try with displaced
  28 # stepping.  COMMAND is the execution command to test.
  29 proc do_test {displaced command} {
  30     global executable
  31
  32     with_test_prefix "displaced=$displaced: $command" {
  33         clean_restart $executable
  34
  35         if ![runto_main] {
  36             continue
  37         }
  38
  39         gdb_test_no_output "set displaced-stepping $displaced"
  40
  41         set line [gdb_get_line_number "set wait-thread breakpoint here"]
  42         if { ![gdb_breakpoint $line] } {
  43             return
  44         }
  45         gdb_continue_to_breakpoint "run to wait-thread breakpoint"
  46         gdb_test "info threads" "\\\* 1 .*  2 .*" "info threads shows all threads"
  47
  48         gdb_test_no_output "set scheduler-locking on"
  49
  50         delete_breakpoints
  51
  52         gdb_breakpoint [gdb_get_line_number "set breakpoint child here"]
  53         gdb_test "thread 2" "Switching to .*"
  54         gdb_continue_to_breakpoint "run to breakpoint in thread 2"
  55         gdb_test "p counter = 0" " = 0" "unbreak loop in thread 2"
  56
  57         # Set a breakpoint exactly where the step-over will land.
  58         gdb_breakpoint [gdb_get_line_number "breakpoint after step-over here"]
  59
  60         # Switch back to thread 1 and disable scheduler locking.
  61         gdb_test "thread 1" "Switching to .*"
  62         gdb_test_no_output "set scheduler-locking off"
  63
  64         # Thread 2 is still stopped at a breakpoint that needs to be
  65         # stepped over.  However, right where the step-over lands
  66         # there's another breakpoint installed, which should trap and
  67         # be reported to the user.
  68         gdb_test "$command" "step-over here.*"
  69     }
  70 }
  71
  72 foreach displaced { "off" "on" } {
  73     if { $displaced != "off" && ![support_displaced_stepping] } {
  74         continue
  75     }
  76
  77     # Cover both stepping and non-stepping execution commands.
  78     foreach command { "step" "next" "continue" } {
  79         do_test $displaced $command
  80     }
  81 }