binutils-gdb/gdb/testsuite/gdb.base/paginate-after-ctrl-c-runni...

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# Copyright (C) 2014-2018 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
if [target_info exists gdb,nointerrupts] {
verbose "Skipping paginate-after-ctrl-c-running.exp because of nointerrupts."
return
}
standard_testfile
if {[build_executable "failed to prepare" $testfile $srcfile debug] == -1} {
return -1
}
# Send a ctrl-c while the target is running and the next output causes
# a pagination prompt.
proc test_ctrlc_while_target_running_paginates {} {
global binfile srcfile
global gdb_prompt pagination_prompt
set testline [gdb_get_line_number "after sleep"]
with_test_prefix "ctrlc target running" {
clean_restart $binfile
if ![runto_main] then {
fail "can't run to main"
return 0
}
gdb_test "b $srcfile:$testline" \
"Breakpoint .*$srcfile, line $testline.*" \
"set breakpoint"
gdb_test_no_output "set height 2"
# Wait for the "Continuing" line, indicating the program is
# running.
set test "continue"
gdb_test_multiple $test $test {
-re "Continuing" {
pass $test
}
}
# The program sleeps 10 seconds. Wait just a bit and send a
# ctrl-c.
sleep 2
send_gdb "\003"
# GDB now intercepts the SIGINT and tries to let the user know
# about the spurious signal, but that paginates. Make sure
# the user can respond to the pagination query.
set test "got prompt"
set saw_pagination_prompt 0
gdb_test_multiple "" $test {
-re "$pagination_prompt$" {
set saw_pagination_prompt 1
send_gdb "\n"
exp_continue
}
-re "$gdb_prompt $" {
gdb_assert $saw_pagination_prompt $test
}
}
# Confirm GDB can still process input.
gdb_test "p 1" " = 1" "GDB accepts further input"
# In case the board file wants to send further commands.
gdb_test_no_output "set height unlimited"
}
}
test_ctrlc_while_target_running_paginates