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# Copyright 2008, 2009, 2010 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 .

# Based on a file written by Fred Fish. (fnf@cygnus.com)

# This file is part of the GDB testsuite.  It tests reverse debugging

# with watchpoints.

if ![target_info exists gdb,can_reverse] {

    return

}

set testfile "watch-reverse"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {

    return -1

}

runto main

if [target_info exists gdb,use_precord] {

    # Activate process record/replay

    gdb_test_no_output "record" "Turn on process record"

}

# Test software watchpoints

gdb_test_no_output "set can-use-hw-watchpoints 0" "disable hw watchpoints"

gdb_test "break marker1" \

    "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \

    "set breakpoint at marker1"

gdb_test "break marker2" \

    "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \

    "set breakpoint at marker2"

gdb_continue_to_breakpoint "marker1" ".*/$srcfile:.*"

gdb_test "watch ival3" \

    ".*\[Ww\]atchpoint $decimal: ival3.*" \

    "set watchpoint on ival3"

# Continue until first change, from -1 to 0

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, first time"

# Continue until the next change, from 0 to 1.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, second time"

# Continue until the next change, from 1 to 2.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, third time"

# Continue until the next change, from 2 to 3.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, fourth time"

# Continue until the next change, from 3 to 4.

# Note that this one is outside the loop.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, fifth time"

# Continue until we hit the finishing marker function.

# Make sure we hit no more watchpoints.

gdb_continue_to_breakpoint "marker2" ".*/$srcfile:.*"

###

###

###

gdb_test_no_output "set exec-direction reverse" "set reverse"

# Reverse until the previous change, from 4 to 3

# Note that this one is outside the loop

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, first time"

# Reverse until the previous change, from 3 to 2.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, second time"

# Reverse until the previous change, from 2 to 1.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, third time"

# Reverse until the previous change, from 1 to 0.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, fourth time"

# Reverse until first change, from 0 to -1

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, fifth time"

gdb_test_no_output "set can-use-hw-watchpoints 1" "enable hw watchpoints"

###

###

###

gdb_test_no_output "set exec-direction forward" "set forward"

# Continue until first change, from -1 to 0

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, forward replay, first time"

# Continue until the next change, from 0 to 1.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, forward replay, second time"

# Continue until the next change, from 1 to 2.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, forward replay, third time"

# Continue until the next change, from 2 to 3.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, forward replay, fourth time"

# Continue until the next change, from 3 to 4.

# Note that this one is outside the loop.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit, forward replay, fifth time"

# Continue until we hit the finishing marker function.

# Make sure we hit no more watchpoints.

gdb_test "continue" "marker2 .*" "replay forward to marker2"

###

###

###

gdb_test_no_output "set exec-direction reverse" "set reverse"

# Reverse until the previous change, from 4 to 3

# Note that this one is outside the loop

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, HW, first time"

# Reverse until the previous change, from 3 to 2.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, HW, second time"

# Reverse until the previous change, from 2 to 1.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, HW, third time"

# Reverse until the previous change, from 1 to 0.

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, HW, fourth time"

# Reverse until first change, from 0 to -1

gdb_test "continue" \

    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \

    "watchpoint hit in reverse, HW, fifth time"