gdb/testsuite/gdb.base/random-signal.exp

   1 # Copyright 2013-2019 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,nosignals] {
  17     verbose "Skipping catch-signal.exp because of nosignals."
  18     continue
  19 }
  20
  21 # This test requires sending ^C to interrupt the running target.
  22 if [target_info exists gdb,nointerrupts] {
  23     verbose "Skipping random-signal.exp because of nointerrupts."
  24     return
  25 }
  26
  27 standard_testfile
  28
  29 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  30     return -1
  31 }
  32
  33 # Set a software watchpoint, continue, wait a bit and stop the target
  34 # with ctrl-c.  A software watchpoint forces the target to
  35 # single-step.
  36 proc do_test {} {
  37     global binfile
  38
  39     gdb_test_no_output "set can-use-hw-watchpoints 0"
  40     gdb_test "watch v" "Watchpoint .*"
  41     gdb_test_multiple "continue" "continue" {
  42         -re "Continuing" {
  43             pass "continue"
  44         }
  45     }
  46
  47     # For this to work we must be sure to consume the "Continuing."
  48     # message first, or GDB's signal handler may not be in place.
  49     after 500 {send_gdb "\003"}
  50     gdb_test "" "Program received signal SIGINT.*" "stop with control-c"
  51 }
  52
  53 # With native debugging and "run" (with job control), the ctrl-c
  54 # always reaches the inferior, not gdb, even if ctrl-c is pressed
  55 # while gdb is processing the internal software watchtpoint
  56 # single-step.  With remote debugging, the ctrl-c reaches GDB first.
  57 with_test_prefix "run" {
  58     clean_restart $binfile
  59
  60     if {![runto_main]} {
  61         return -1
  62     }
  63
  64     do_test
  65 }
  66
  67 # With "attach" however, even with native debugging, the ctrl-c always
  68 # reaches GDB first.  Test that as well.
  69 with_test_prefix "attach" {
  70     if {[can_spawn_for_attach]} {
  71         clean_restart $binfile
  72
  73         set test_spawn_id [spawn_wait_for_attach $binfile]
  74         set testpid [spawn_id_get_pid $test_spawn_id]
  75
  76         gdb_test "attach $testpid" "Attaching to.*process $testpid.*libc.*" "attach"
  77
  78         do_test
  79
  80         kill_wait_spawned_process $test_spawn_id
  81     }
  82 }