# Copyright 2017-2021 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/>.

# Test "next" bouncing between two breakpoints in two threads running
# in different targets.

source $srcdir/$subdir/multi-target.exp.tcl

if {![multi_target_prepare]} {
    return
}

proc test_ping_pong_next {} {
    global srcfile

    if {![setup "off"]} {
	untested "setup failed"
	return
    }

    # Block/unblock inferiors 1 and 2 according to INF1 and INF2.
    proc block {inf1 inf2} {
	gdb_test "thread apply 1.1 p wait_for_gdb = $inf1" " = $inf1"
	gdb_test "thread apply 2.1 p wait_for_gdb = $inf2" " = $inf2"
    }

    # We'll use inferiors 1 and 2.  Make sure they're really connected
    # to different targets.
    gdb_test "thread apply 1.1 maint print target-stack" \
	"- native.*"
    gdb_test "thread apply 2.1 maint print target-stack" \
	"- extended-remote.*"

    # Set two breakpoints, one for each of inferior 1 and 2.  Inferior
    # 1 is running on the native target, and inferior 2 is running on
    # extended-gdbserver.  Run to breakpoint 1 to gets things started.
    set line1 [gdb_get_line_number "set break 1 here"]
    set line2 [gdb_get_line_number "set break 2 here"]

    gdb_test "thread 1.1" "Switching to thread 1.1 .*"

    gdb_test "break $srcfile:$line1 thread 1.1" \
	"Breakpoint .*$srcfile:$line1\\..*"

    gdb_test "continue" "hit Breakpoint .*"

    gdb_test "break $srcfile:$line2 thread 2.1" \
	"Breakpoint .*$srcfile:$line2\\..*"

    # Now block inferior 1 and issue "next".  We should stop at the
    # breakpoint for inferior 2, given schedlock off.
    with_test_prefix "next inf 1" {
	block 1 0
	gdb_test "next" "Thread 2.1 .*hit Breakpoint .*$srcfile:$line2.*"
    }

    # Now unblock inferior 2 and block inferior 1.  "next" should run
    # into the breakpoint in inferior 1.
    with_test_prefix "next inf 2" {
	block 0 1
	gdb_test "next" "Thread 1.1 .*hit Breakpoint .*$srcfile:$line1.*"
    }

    # Try nexting inferior 1 again.
    with_test_prefix "next inf 1 again" {
	block 1 0
	gdb_test "next" "Thread 2.1 .*hit Breakpoint .*$srcfile:$line2.*"
    }
}

test_ping_pong_next

multi_target_cleanup