gdb/testsuite/gdb.base/watchpoint-hw-attach.exp

   1 # Copyright 2018-2024 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 # watchpoint-hw-attach.exp -- Test if hardware watchpoints are used
  17 # when attaching to a target.
  18
  19 require allow_hw_watchpoint_tests
  20
  21 require can_spawn_for_attach
  22
  23 standard_testfile
  24
  25 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  26     return -1
  27 }
  28
  29 if ![runto_main] {
  30     return -1
  31 }
  32
  33 # Run to the point where mypid in the test program has been
  34 # populated.
  35 gdb_breakpoint [gdb_get_line_number "pidacquired"]
  36 gdb_continue_to_breakpoint "pidacquired"
  37
  38 # Get the PID of the test process.
  39 set testpid [get_integer_valueof "mypid" 0]
  40
  41 gdb_test "detach" "Detaching from program: .*, process $testpid\r\n\\\[Inferior $decimal \\(process $testpid\\) detached\\\]"
  42
  43 if {$testpid == ""} {
  44     return -1
  45 }
  46
  47 # A clean restart is needed to force the hardware watchpoint setup
  48 # logic to run post attach rather than post inferior launch.
  49 clean_restart $binfile
  50
  51 gdb_test "attach $testpid" "Attaching to program: .*, process $testpid.*" "attach"
  52
  53 # Ensure the test program is in the top frame so the required
  54 # variables are in scope.
  55 gdb_breakpoint $srcfile:[gdb_get_line_number "pidacquired"]
  56 gdb_continue_to_breakpoint "$srcfile:pidacquired"
  57
  58 gdb_test_no_output "set should_continue = 1"
  59
  60 gdb_test "watch watched_variable" \
  61          "Hardware watchpoint $decimal: watched_variable"
  62
  63 gdb_test "continue" \
  64          "continue.*Continuing.*\.Hardware watchpoint $decimal: watched_variable.*Old value = 0.*New value = 4.*watched_variable\\);"