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

   1 # Copyright 2013-2024 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 require {!target_info exists gdb,nosignals}
  17
  18 # This test requires sending ^C to interrupt the running target.
  19 require {!target_info exists gdb,nointerrupts}
  20
  21 standard_testfile
  22
  23 if {[build_executable "failed to prepare" $testfile $srcfile debug]} {
  24     return -1
  25 }
  26
  27 # Set a software watchpoint, continue, wait a bit and stop the target
  28 # with ctrl-c.  A software watchpoint forces the target to
  29 # single-step.
  30 proc do_test {} {
  31     global binfile
  32
  33     gdb_test_no_output "set can-use-hw-watchpoints 0"
  34     gdb_test "watch v" "Watchpoint .*"
  35     gdb_test_multiple "continue" "continue" {
  36         -re "Continuing" {
  37             pass "continue"
  38         }
  39     }
  40
  41     # For this to work we must be sure to consume the "Continuing."
  42     # message first, or GDB's signal handler may not be in place.
  43     after 500 {send_gdb "\003"}
  44     gdb_test "" "Program received signal SIGINT.*" "stop with control-c"
  45 }
  46
  47 # With native debugging and "run" (with job control), the ctrl-c
  48 # always reaches the inferior, not gdb, even if ctrl-c is pressed
  49 # while gdb is processing the internal software watchtpoint
  50 # single-step.  With remote debugging, the ctrl-c reaches GDB first.
  51 with_test_prefix "run" {
  52     clean_restart $binfile
  53
  54     if {![runto_main]} {
  55         return -1
  56     }
  57
  58     do_test
  59 }
  60
  61 # With "attach" however, even with native debugging, the ctrl-c always
  62 # reaches GDB first.  Test that as well.
  63 with_test_prefix "attach" {
  64     if {[can_spawn_for_attach]} {
  65         clean_restart $binfile
  66
  67         set test_spawn_id [spawn_wait_for_attach $binfile]
  68         set testpid [spawn_id_get_pid $test_spawn_id]
  69
  70         gdb_test "attach $testpid" "Attaching to.*process $testpid.*libc.*" "attach"
  71
  72         do_test
  73
  74         kill_wait_spawned_process $test_spawn_id
  75     }
  76 }