gdb/testsuite/gdb.base/paginate-bg-execution.exp

# Copyright (C) 2014-2020 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/>.

# A collection of tests related to running execution commands directly
# from the command line, with "-ex".

standard_testfile

if {[build_executable "failed to prepare" $testfile $srcfile debug] == -1} {
    return -1
}

# Check that we handle pagination correctly when it triggers due to an
# background execution command entered directly on the command line.

proc test_bg_execution_pagination_return {} {
    global binfile
    global pagination_prompt

    with_test_prefix "paginate" {
	clean_restart $binfile

	if ![runto_main] then {
	    fail "can't run to main"
	    return 0
	}

	gdb_test "b after_sleep"

	gdb_test_no_output "set height 2"

	gdb_test "continue&" "Continuing\."

	set test "pagination handled, breakpoint hit"
	set saw_pagination_prompt 0
	gdb_test_multiple "" $test {
	    -re "$pagination_prompt$" {
		set saw_pagination_prompt 1
		send_gdb "\n"
		exp_continue
	    }
	    -re "after sleep\[^\r\n\]+\r\n$" {
		gdb_assert $saw_pagination_prompt $test
	    }
	}

	# GDB used to crash here.
	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"
    }
}

# Check that we handle canceling pagination correctly when it triggers
# due to a background execution command entered directly on the
# command line.

proc test_bg_execution_pagination_cancel { how } {
    global binfile
    global gdb_prompt pagination_prompt

    with_test_prefix "cancel with $how" {
	clean_restart $binfile

	if ![runto_main] then {
	    fail "can't run to main"
	    return 0
	}

	gdb_test "b after_sleep"

	gdb_test_no_output "set height 2"

	gdb_test "continue&" "Continuing\."

	set test "continue& paginates"
	gdb_test_multiple "" $test {
	    -re "$pagination_prompt$" {
		pass $test
	    }
	}

	set test "cancel pagination"
	if { $how == "ctrl-c" } {
	    send_gdb "\003"
	} else {
	    send_gdb "q\n"

	}
	gdb_test_multiple "" $test {
	    -re "Quit\r\n$gdb_prompt $" {
		pass $test
	    }
	}

	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_bg_execution_pagination_return
if ![target_info exists gdb,nointerrupts] {
    test_bg_execution_pagination_cancel "ctrl-c"
}
test_bg_execution_pagination_cancel "quit"