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# Copyright 1992, 1994, 1995, 1996, 1997, 1999, 2000

# 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 2 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, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This file was written by Jeff Law. (law@cs.utah.edu)

if $tracelevel then {

    strace $tracelevel

}

set prms_id 0

set bug_id 0

set testfile "recurse"

set srcfile ${testfile}.c

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

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

     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."

}

# Start with a fresh gdb.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

proc recurse_tests {} {

    # Disable hardware watchpoints if necessary.

    if [target_info exists gdb,no_hardware_watchpoints] {

        gdb_test "set can-use-hw-watchpoints 0" "" ""

    }

    if [runto recurse] then {

        # First we need to step over the assignment of b, so it has a known

        # value.

        gdb_test "next" "if \\(a == 1\\)" "next over b = 0 in first instance"

        gdb_test "watch b" ".*\[Ww\]atchpoint \[0-9]*: b" \

            "set first instance watchpoint"

        # Continue until initial set of b.

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*: b.*Old value = 0.*New value = 10.*" \

            "continue to first instance watchpoint, first time"] then {

            gdb_suppress_tests;

        }

        # Continue inward for a few iterations

        gdb_test "continue" "Breakpoint.* recurse \\(a=9\\).*" \

            "continue to recurse (a = 9)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=8\\).*" \

            "continue to recurse (a = 8)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=7\\).*" \

            "continue to recurse (a = 7)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=6\\).*" \

            "continue to recurse (a = 6)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=5\\).*" \

            "continue to recurse (a = 5)"

        # Put a watchpoint on another instance of b

        # First we need to step over the assignment of b, so it has a known

        # value.

        gdb_test "next" "if \\(a == 1\\)" "next over b = 0 in second instance"

        gdb_test "watch b" ".*\[Ww\]atchpoint \[0-9]*: b" \

            "set second instance watchpoint"

        # Continue until initial set of b (second instance).

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*: b.*Old value = 0.*New value = 5.*"\

            "continue to second instance watchpoint, first time"] then {

        gdb_suppress_tests;

        }

        # Continue inward for a few iterations

        gdb_test "continue" "Breakpoint.* recurse \\(a=4\\).*" \

            "continue to recurse (a = 4)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=3\\).*" \

            "continue to recurse (a = 3)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=2\\).*" \

            "continue to recurse (a = 2)"

        gdb_test "continue" "Breakpoint.* recurse \\(a=1\\).*" \

            "continue to recurse (a = 1)"

        # Continue until second set of b (second instance).

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*: b.*Old value = 5.*New value = 120.*return.*" \

            "continue to second instance watchpoint, second time"] then {

            gdb_suppress_tests;

        }

        # Continue again.  We should have a watchpoint go out of scope now

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*deleted.*recurse \\(a=6\\) .*" \

            "second instance watchpoint deleted when leaving scope"] then {

            gdb_suppress_tests;

        }

        # Continue until second set of b (first instance).

        # 24320 is allowed as the final value for b as that's the value

        # b would have on systems with 16bit integers.

        #

        # We could fix the test program to deal with this too.

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*b.*Old value = 10.*New value = \(3628800|24320\).*return.*" \

            "continue to first instance watchpoint, second time"] then {

            gdb_suppress_tests

        }

        # Continue again.  We should have a watchpoint go out of scope now

        if [gdb_test "continue" \

            "Continuing.*\[Ww\]atchpoint.*deleted.*main \\(\\) .*" \

            "first instance watchpoint deleted when leaving scope"] then {

            gdb_suppress_tests;

        }

    }

    gdb_stop_suppressing_tests;

}

# Preserve the old timeout, and set a new one that should be

# sufficient to avoid timing out during this test.

set oldtimeout $timeout

set timeout [expr "$timeout + 60"]

verbose "Timeout is now $timeout seconds" 2

recurse_tests

# Restore the preserved old timeout value.

set timeout $oldtimeout

verbose "Timeout is now $timeout seconds" 2