gdb/testsuite/gdb.base/cond-eval-mode.exp

   1 #   Copyright 2012-2018 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 'set breakpoint condition-evaluation' settings
  17
  18 standard_testfile
  19
  20 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  21     return -1
  22 }
  23
  24 if ![runto_main] then {
  25     fail "can't run to main"
  26     return 0
  27 }
  28
  29 set test_host "set breakpoint condition-evaluation host"
  30 set test_auto "set breakpoint condition-evaluation auto"
  31 set test_target "set breakpoint condition-evaluation target"
  32
  33 gdb_test_no_output $test_host
  34 gdb_test_no_output $test_auto
  35
  36 # If target-side condition evaluation is not supported, this warning will be
  37 # displayed.
  38 set warning "warning: Target does not support breakpoint condition evaluation.\r\nUsing host evaluation mode instead."
  39
  40 gdb_test_multiple $test_target $test_target {
  41     -re "$warning\r\n$gdb_prompt $" {
  42         unsupported $test_target
  43         return -1
  44     }
  45
  46     -re "^$test_target\r\n$gdb_prompt $" {
  47         pass $test_target
  48     }
  49 }
  50
  51 # We now know that the target supports target-side conditional
  52 # evaluation.  Now make sure we can force-disable the
  53 # ConditionalBreakpoints RSP feature.
  54 if [gdb_is_target_remote] {
  55     gdb_test_no_output "set remote conditional-breakpoints-packet off"
  56
  57     gdb_test $test_target "$warning" \
  58         "set breakpoint condition-evaluation target, with support disabled"
  59
  60     # Confirm we can re-enable it.
  61     gdb_test_no_output "set remote conditional-breakpoints-packet on"
  62     gdb_test_no_output $test_target "restore $test_target"
  63 }
  64
  65 # Test setting a condition in a breakpoint.  BREAK_COMMAND is the
  66 # break/hwatch command to test.
  67 #
  68 proc test_break { break_command } {
  69     global gdb_prompt
  70
  71     with_test_prefix "$break_command" {
  72         delete_breakpoints
  73
  74         gdb_test "$break_command foo" "reakpoint.* at .*"
  75
  76         # A condition that evals true.
  77         gdb_test "condition \$bpnum cond_global==0" ".*"
  78
  79         set can_do_cmd 0
  80
  81         set test "continue"
  82         gdb_test_multiple $test $test {
  83             -re "You may have requested too many.*$gdb_prompt $" {
  84                 pass $test
  85             }
  86             -re "Breakpoint .*, foo .*$gdb_prompt $" {
  87                 pass $test
  88                 set can_do_cmd 1
  89             }
  90         }
  91
  92         if { !$can_do_cmd } {
  93             unsupported "no target support"
  94             return
  95         }
  96
  97         delete_breakpoints
  98
  99         gdb_test "$break_command foo" ".*reakpoint .* at .*"
 100
 101         # A condition that evals false.
 102         gdb_test "condition \$bpnum cond_global==1" ".*"
 103
 104         gdb_test "b bar" "Breakpoint .* at .*"
 105
 106         gdb_test "continue" "Breakpoint .*, bar .*"
 107     }
 108 }
 109
 110 # Test setting conditions in watchpoints.  WATCH_COMMAND is the watch
 111 # command to test.
 112 #
 113 proc test_watch { watch_command } {
 114     global gdb_prompt
 115
 116     with_test_prefix "$watch_command" {
 117         if [target_info exists gdb,no_hardware_watchpoints] {
 118             unsupported "no target support"
 119             return
 120         }
 121
 122         delete_breakpoints
 123
 124         gdb_test "$watch_command global" ".*atchpoint .*: global.*"
 125
 126         # A condition that evals true.
 127         gdb_test "condition \$bpnum cond_global==0" ".*"
 128
 129         set can_do_cmd 0
 130
 131         set test "continue"
 132         gdb_test_multiple $test $test {
 133             -re "You may have requested too many.*$gdb_prompt $" {
 134                 pass $test
 135             }
 136             -re "atchpoint .*: global.*$gdb_prompt $" {
 137                 pass $test
 138                 set can_do_cmd 1
 139             }
 140         }
 141
 142         if { !$can_do_cmd } {
 143             unsupported "no target support"
 144             return
 145         }
 146
 147         delete_breakpoints
 148
 149         gdb_test "$watch_command global" ".*atchpoint .*: global.*"
 150
 151         # A condition that evals false.
 152         gdb_test "condition \$bpnum cond_global==1" ".*"
 153
 154         gdb_test "b bar" "Breakpoint .* at .*"
 155
 156         gdb_test "continue" "Breakpoint .*, bar .*"
 157     }
 158 }
 159
 160 foreach break_command { "break" "hbreak" } {
 161     test_break $break_command
 162 }
 163
 164 foreach watch_command { "watch" "rwatch" "awatch" } {
 165     test_watch $watch_command
 166 }