# Copyright (C) 1992, 1996 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}] != "" } {
    perror "Couldn't compile ${srcfile}"
    return -1
}

# Start with a fresh gdb.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

proc recurse_tests {} {

    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 {
	    return
	}

	# 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 {
	    return
	}

	# 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 { 
	    return
	}

	# 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 {
	    return
	}

	# Continue until second set of b (first instance).
	if [gdb_test "continue" \
	    "Continuing.*\[Ww\]atchpoint.*b.*Old value = 10.*New value = 3628800.*return.*" \
	    "continue to first instance watchpoint, second time"] then {
	    return
	}

	# 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 {
	    return
	}
    }
}

# Only enabled for some targets merely because it has not been tested 
# elsewhere.
if {[istarget "sparc*-*-sunos4*"] || [istarget "hppa*-*-bsd*"] || [istarget "sparclet-*-*"] || [istarget "m32r-*-elf"] || [istarget "mn10200-*-*"]} then {

    # 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
}
