gecko-dev/toolkit/xre/MacLaunchHelper.mm

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Goodger <ben@mozilla.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "MacLaunchHelper.h"
#include "nsObjCExceptions.h"
#include <Cocoa/Cocoa.h>
#ifdef __ppc__
#include <sys/types.h>
#include <sys/sysctl.h>
#include <mach/machine.h>
#endif /* __ppc__ */
void LaunchChildMac(int aArgc, char** aArgv)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
int i;
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSTask* child = [[[NSTask alloc] init] autorelease];
NSMutableArray* args = [[[NSMutableArray alloc] init] autorelease];
#ifdef __ppc__
// It's possible that the app is a universal binary running under Rosetta
// translation because the user forced it to. Relaunching via NSTask would
// launch the app natively, which the user apparently doesn't want.
// In that case, try to preserve translation.
// If the sysctl doesn't exist, it's because Rosetta doesn't exist,
// so don't try to force translation. In case of other errors, just assume
// that the app is native.
int isNative = 0;
size_t sz = sizeof(isNative);
if (sysctlbyname("sysctl.proc_native", &isNative, &sz, NULL, 0) == 0 &&
!isNative) {
// Running translated on ppc.
cpu_type_t preferredCPU = CPU_TYPE_POWERPC;
sysctlbyname("sysctl.proc_exec_affinity", NULL, NULL,
&preferredCPU, sizeof(preferredCPU));
// Nothing can be done to handle failure, relaunch anyway.
}
#endif /* __ppc__ */
for (i = 1; i < aArgc; ++i)
[args addObject: [NSString stringWithCString: aArgv[i]]];
[child setCurrentDirectoryPath:[[[NSBundle mainBundle] executablePath] stringByDeletingLastPathComponent]];
[child setLaunchPath:[[NSBundle mainBundle] executablePath]];
[child setArguments:args];
[child launch];
[pool release];
NS_OBJC_END_TRY_ABORT_BLOCK;
}