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#   Copyright 2011 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,no_hardware_watchpoints] {
    return -1
}

if { ![support_displaced_stepping] } { 
    unsupported "displaced stepping"
    return -1
}

load_lib mi-support.exp
set MIFLAGS "-i=mi"

gdb_exit
if {[mi_gdb_start]} {
    continue
}

proc mi_nonstop_resume { command test } {
    if { [mi_send_resuming_command $command $test] != 0 } {
	# If a resume fails, assume non-stop is broken or unsupported
	# for this target.  We have logged a FAIL or UNSUPPORTED; skip
	# the remaining tests to limit timeouts.
	return -code continue
    }
}

#
# Start here
#
set testfile "watch-nonstop"
set srcfile "$testfile.c"
set binfile "$objdir/$subdir/mi-$testfile"

if {[gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable {debug}] != "" } {
    return -1
}

mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load $binfile

mi_gdb_test "-gdb-set non-stop 1" ".*"
mi_gdb_test "-gdb-set target-async 1" ".*"
mi_detect_async

if { [mi_run_to_main] < 0 } {
    continue
}

# Set a watchpoint.
mi_gdb_test "111-break-watch global" \
    "111\\^done,wpt=\{number=\"2\",exp=\"global\"\}" \
    "break-watch operation"

# Set the target running.
mi_nonstop_resume "exec-continue" "resume 1"

# Now try deleting the watchpoint.  This would fail with "Couldn't
# write debug register: No such process."  on GNU/Linux, because we'd
# try to poke at the debug registers of a running thread.
mi_gdb_test "777-break-delete 2" \
    "777\\^done" \
    "delete watchpoint"