gdb/testsuite/gdb.multi/watchpoint-multi-exit.exp

   1 # Copyright 2016-2021 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 # Make sure that if an inferior exits or is detached/killed, its
  17 # watchpoints don't end up with stale locations, preventing resumption
  18 # of other inferiors.
  19
  20 standard_testfile
  21
  22 if {[build_executable "failed to build" $testfile $srcfile {debug}]} {
  23     return -1
  24 }
  25
  26 # The test proper.  DISPOSE indicates how to dispose of the fork
  27 # child.  Can be either "kill", "detach", or "exit" (to continue it to
  28 # normal exit).
  29 proc do_test {dispose} {
  30     global binfile
  31
  32     clean_restart $binfile
  33
  34     gdb_test_no_output "set follow-fork child"
  35     gdb_test_no_output "set detach-on-fork off"
  36
  37     if ![runto "child_function"] {
  38         fail "can't run to child_function"
  39         return
  40     }
  41
  42     gdb_test "watch globalvar" "atchpoint \[0-9\]+: globalvar" \
  43         "set watchpoint on inferior 2"
  44
  45     # Dispose of the inferior.  This should get rid of this inferior's
  46     # watchpoint locations.
  47     if {$dispose == "kill"} {
  48         gdb_test "kill" "" "kill inferior 2" \
  49             "Kill the program being debugged.*y or n. $" "y"
  50     } elseif {$dispose == "detach"} {
  51         gdb_test "detach" ".*" "detach inferior 2"
  52     } elseif {$dispose == "exit"} {
  53         gdb_test "continue" ".*exited normally.*" "run to exit inferior 2"
  54     } else {
  55         perror "unhandled dispose: $dispose"
  56     }
  57
  58     gdb_test "inferior 1" "witching to inferior 1 .*" \
  59         "switch back to inferior 1"
  60
  61     if {$dispose == "kill"} {
  62         gdb_test "print expect_signaled = 1" " = 1"
  63     }
  64
  65     gdb_breakpoint "marker"
  66
  67     # Now continue inferior 1.  Before GDB was fixed, watchpoints for
  68     # inferior 2 managed to be left behind.  When GDB realized that
  69     # they hadn't been inserted, the continue command was aborted:
  70     #
  71     #  (gdb) continue
  72     #  Continuing.
  73     #  Warning:
  74     #  Could not insert hardware watchpoint 2.
  75     #  Could not insert hardware breakpoints:
  76     #  You may have requested too many hardware breakpoints/watchpoints.
  77     #
  78     #  Command aborted.
  79     #  (gdb)
  80     #
  81     gdb_test "continue" "Breakpoint \[0-9\]+, marker .*" \
  82         "continue in inferior 1"
  83 }
  84
  85 foreach_with_prefix dispose {"kill" "detach" "exit"} {
  86     do_test $dispose
  87 }