gdb/testsuite/gdb.base/paginate-after-ctrl-c-running.exp

   1 # Copyright (C) 2014-2019 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 if [target_info exists gdb,nointerrupts] {
  17     verbose "Skipping paginate-after-ctrl-c-running.exp because of nointerrupts."
  18     return
  19 }
  20
  21 standard_testfile
  22
  23 if {[build_executable "failed to prepare" $testfile $srcfile debug] == -1} {
  24     return -1
  25 }
  26
  27 # Send a ctrl-c while the target is running and the next output causes
  28 # a pagination prompt.
  29
  30 proc test_ctrlc_while_target_running_paginates {} {
  31     global binfile srcfile
  32     global gdb_prompt pagination_prompt
  33
  34     set testline [gdb_get_line_number "after sleep"]
  35
  36     with_test_prefix "ctrlc target running" {
  37         clean_restart $binfile
  38
  39         if ![runto_main] then {
  40             fail "can't run to main"
  41             return 0
  42         }
  43
  44         gdb_test "b $srcfile:$testline" \
  45             "Breakpoint .*$srcfile, line $testline.*" \
  46             "set breakpoint"
  47
  48         gdb_test_no_output "set height 2"
  49
  50         # Wait for the "Continuing" line, indicating the program is
  51         # running.
  52         set test "continue"
  53         gdb_test_multiple $test $test {
  54             -re "Continuing" {
  55                 pass $test
  56             }
  57         }
  58
  59         # The program sleeps 10 seconds.  Wait just a bit and send a
  60         # ctrl-c.
  61         sleep 2
  62         send_gdb "\003"
  63
  64         # GDB now intercepts the SIGINT and tries to let the user know
  65         # about the spurious signal, but that paginates.  Make sure
  66         # the user can respond to the pagination query.
  67         set test "got prompt"
  68         set saw_pagination_prompt 0
  69         gdb_test_multiple "" $test {
  70             -re "$pagination_prompt$" {
  71                 set saw_pagination_prompt 1
  72                 send_gdb "\n"
  73                 exp_continue
  74             }
  75             -re "$gdb_prompt $" {
  76                 gdb_assert $saw_pagination_prompt $test
  77             }
  78         }
  79
  80         # Confirm GDB can still process input.
  81         gdb_test "p 1" " = 1" "GDB accepts further input"
  82
  83         # In case the board file wants to send further commands.
  84         gdb_test_no_output "set height unlimited"
  85     }
  86 }
  87
  88 test_ctrlc_while_target_running_paginates