1# Copyright (C) 2014-2020 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
16if [target_info exists gdb,nointerrupts] {
17    verbose "Skipping paginate-after-ctrl-c-running.exp because of nointerrupts."
18    return
19}
20
21standard_testfile
22
23if {[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
30proc 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
88test_ctrlc_while_target_running_paginates
89