gdb/testsuite/gdb.base/hook-stop.exp

   1 # Copyright 2009-2023 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 standard_testfile
  17
  18 if { [build_executable ${testfile}.exp "${testfile}" $srcfile {debug nowarnings}] } {
  19     return -1
  20 }
  21
  22 # Define the hook-stop that runs COMMANDS.
  23
  24 proc define_hook_stop {commands} {
  25     set test "define hook-stop command"
  26     gdb_test_multiple "define hook-stop" "$test" {
  27         -re "Type commands for definition of \"hook-stop\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  28             gdb_test "$commands\nend" "" "$test"
  29         }
  30     }
  31 }
  32
  33 # Restart GDB, run to main, set a breakpoint, and define a hook-stop
  34 # that runs COMMANDS.  If running to main fails, this returns to the
  35 # caller's caller directly.
  36
  37 proc setup {commands} {
  38     global srcfile binfile
  39
  40     clean_restart $binfile
  41
  42     if {![runto_main]} {
  43         return -code return
  44     }
  45
  46     gdb_test "break func" \
  47         "Breakpoint.*at.* file .*$srcfile.*\\." \
  48         "breakpoint line number"
  49
  50     define_hook_stop $commands
  51 }
  52
  53 # Check that the hook-stop runs before the frame is printed.
  54
  55 proc hook_stop_before_frame {} {
  56     with_test_prefix "hook-stop runs before frame print" {
  57         global gdb_prompt
  58
  59         setup "echo \"Hello.\""
  60
  61         set test "run hook-stop"
  62         gdb_test_multiple "continue" "$test" {
  63             -re "\"Hello\\.\"\r\nBreakpo.*func.*set breakpoint here.*${gdb_prompt} $" {
  64                 pass $test
  65             }
  66
  67             -re "Breakpo.*func.*set breakpoint here.*\"Hello\\.\".*${gdb_prompt} $" {
  68                 fail $test
  69             }
  70         }
  71     }
  72 }
  73
  74 # Check that GDB gracefully handles the case of the inferior dying
  75 # while running the hook-stop.
  76
  77 proc hook_stop_kill {} {
  78     with_test_prefix "hook-stop kills inferior" {
  79         global gdb_prompt
  80         global decimal
  81
  82         setup "kill"
  83
  84         gdb_test_no_output "set confirm off"
  85
  86         set test "run hook-stop"
  87         gdb_test_multiple "continue" "$test" {
  88             -re "Continuing.\r\n\\\[Inferior $decimal \\(.*\\) killed\\\]\r\n${gdb_prompt} $" {
  89                 pass $test
  90             }
  91         }
  92
  93         gdb_test "info threads" "No threads.*"
  94     }
  95 }
  96
  97 # Check that GDB gracefully handles the case of the hook-stop
  98 # continuing the inferior in the foreground.
  99
 100 proc hook_stop_continue_fg {} {
 101     with_test_prefix "hook-stop runs continue" {
 102         global gdb_prompt
 103
 104         setup "if \$do_continue\nset \$do_continue = 0\ncontinue\nend"
 105
 106         gdb_test "print \$do_continue = 1" " = 1"
 107
 108         gdb_test "next" "Breakpoint.*func \\(\\) at .*set breakpoint here \\*/" \
 109             "next triggering hook-stop"
 110
 111         gdb_test "next" "a = 2;" "next no hook-stop"
 112     }
 113 }
 114
 115 # Check that GDB gracefully handles the case of the hook-stop
 116 # continuing the inferior in the background.
 117
 118 proc hook_stop_continue_bg {} {
 119     with_test_prefix "hook-stop runs continue&" {
 120         global gdb_prompt
 121
 122         setup "if \$do_continue\nset \$do_continue = 0\ncontinue&\nend"
 123
 124         gdb_test "print \$do_continue = 1" " = 1"
 125
 126         set test "run hook-stop"
 127         gdb_test_multiple "continue" "$test" {
 128             -re "Continuing.\r\n.*${gdb_prompt} " {
 129                 pass $test
 130             }
 131         }
 132
 133         set test "inferior exits normally"
 134         gdb_test_multiple "" "$test" {
 135             -re "exited normally" {
 136                 pass $test
 137             }
 138         }
 139         gdb_test "info threads" "No threads.*"
 140     }
 141 }
 142
 143 # Check that GDB gracefully handles the case of the hook-stop running
 144 # "next".  GDB used to print the stop event twice.
 145
 146 proc hook_stop_next {} {
 147     with_test_prefix "hook-stop runs next" {
 148         global gdb_prompt
 149
 150         setup "next"
 151
 152         set test "run hook-stop"
 153         gdb_test_multiple "continue" "$test" {
 154             -re "a = 2.*a = 2${gdb_prompt} $" {
 155                 fail $test
 156             }
 157             -re "a = 2.*${gdb_prompt} $" {
 158                 pass $test
 159             }
 160         }
 161     }
 162 }
 163
 164 hook_stop_before_frame
 165 hook_stop_kill
 166 hook_stop_continue_fg
 167 hook_stop_continue_bg
 168 hook_stop_next