#!/usr/bin/perl -w

# Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1.  Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer. 
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution. 
# 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
#     its contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission. 
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Simplified "run under gdb" script for WebKit Open Source Project.

use strict;
use File::Temp qw/:mktemp/;
use FindBin;
use Getopt::Long;
use lib $FindBin::Bin;
use webkitdirs;

my $programName = basename($0);
my $showHelp = 0;
my $run64Bit;

my $usage = <<EOF;
Usage: $programName [options]
  --help                          Show this help message
  --64-bit                        Run in 64-bit mode
EOF

my $getOptionsResult = GetOptions(
    'help' => \$showHelp,
    '64-bit!' => \$run64Bit
);

if (!$getOptionsResult || $showHelp) {
    print STDERR $usage;
    exit 1;
}

setRun64Bit($run64Bit);
setConfiguration();
my $productDir = productDir();
my $safariPath = safariPath();

# Check to see that gdb is in the usual place.
my $gdbPath = "/usr/bin/gdb";
die "Can't find gdb executable. Is gdb installed?\n" unless -x $gdbPath;

# Check to see that all the frameworks are built.
checkFrameworks();

# Put a command to set DYLD_FRAMEWORK_PATH in a temp file.
# Also set WEBKIT_UNSET_DYLD_FRAMEWORK_PATH to YES in this environment, so that
# executables launched by Safari don't inherit using the new frameworks.
my ($fh, $path) = mkstemp("/tmp/gdb-safari-XXXX");
print $fh "set env DYLD_FRAMEWORK_PATH $productDir\n";
print $fh "set env WEBKIT_UNSET_DYLD_FRAMEWORK_PATH YES\n";

my @architectureFlags = ("-arch", preferredArchitecture()) if isOSX();
# Start up Safari.
print "Start Safari under gdb with DYLD_FRAMEWORK_PATH set to point to built WebKit in $productDir.\n";
exec $gdbPath, "-x", $path, @architectureFlags, $safariPath or die;

# Delete the temporary file.
unlink0($fh, $path) or die "Error unlinking file $path safely";