149 lines
4.6 KiB
Plaintext
149 lines
4.6 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MacLaunchHelper.h"
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#include "nsMemory.h"
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#include "nsAutoPtr.h"
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#include "nsIAppStartup.h"
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#include <stdio.h>
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// #include <spawn.h> // 10.4 doesn't have spawn. It's rated PG. No sex.
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#include <crt_externs.h>
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#include "nsObjCExceptions.h"
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#include <Cocoa/Cocoa.h>
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#ifdef __ppc__
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <mach/machine.h>
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#endif /* __ppc__ */
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using namespace mozilla;
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#if(0) // We don't need to use this.
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namespace {
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cpu_type_t pref_cpu_types[2] = {
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#if defined(__i386__)
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CPU_TYPE_X86,
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#elif defined(__x86_64__)
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CPU_TYPE_X86_64,
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#elif defined(__ppc__)
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CPU_TYPE_POWERPC,
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#endif
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CPU_TYPE_ANY };
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cpu_type_t cpu_i386_types[2] = {
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CPU_TYPE_X86,
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CPU_TYPE_ANY };
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cpu_type_t cpu_x64_86_types[2] = {
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CPU_TYPE_X86_64,
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CPU_TYPE_ANY };
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} // namespace
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#endif
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void LaunchChildMac(int aArgc, char** aArgv,
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uint32_t aRestartType, pid_t *pid)
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{
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#if(1)
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/* Use the 3.6 code for 10.4Fx, except that we now extract the pid for
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consumers, unless (!pid). -- Cameron */
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
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int i;
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NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
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NSTask* child = [[[NSTask alloc] init] autorelease];
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if (pid) *pid = (pid_t)[child processIdentifier]; // XXX?
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NSMutableArray* args = [[[NSMutableArray alloc] init] autorelease];
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#ifdef __ppc__
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// It's possible that the app is a universal binary running under Rosetta
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// translation because the user forced it to. Relaunching via NSTask would
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// launch the app natively, which the user apparently doesn't want.
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// In that case, try to preserve translation.
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// If the sysctl doesn't exist, it's because Rosetta doesn't exist,
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// so don't try to force translation. In case of other errors, just assume
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// that the app is native.
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int isNative = 0;
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size_t sz = sizeof(isNative);
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if (sysctlbyname("sysctl.proc_native", &isNative, &sz, NULL, 0) == 0 &&
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!isNative) {
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// Running translated on ppc.
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cpu_type_t preferredCPU = CPU_TYPE_POWERPC;
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sysctlbyname("sysctl.proc_exec_affinity", NULL, NULL,
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&preferredCPU, sizeof(preferredCPU));
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// Nothing can be done to handle failure, relaunch anyway.
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}
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#endif /* __ppc__ */
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for (i = 1; i < aArgc; ++i)
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[args addObject: [NSString stringWithCString: aArgv[i]]];
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[child setCurrentDirectoryPath:[[[NSBundle mainBundle] executablePath] stringByDeletingLastPathComponent]];
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[child setLaunchPath:[[NSBundle mainBundle] executablePath]];
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[child setArguments:args];
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[child launch];
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[pool release];
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NS_OBJC_END_TRY_ABORT_BLOCK;
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#else
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// "posix_spawnp" uses null termination for arguments rather than a count.
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// Note that we are not duplicating the argument strings themselves.
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nsAutoArrayPtr<char*> argv_copy(new char*[aArgc + 1]);
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for (int i = 0; i < aArgc; i++) {
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argv_copy[i] = aArgv[i];
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}
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argv_copy[aArgc] = NULL;
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// Initialize spawn attributes.
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posix_spawnattr_t spawnattr;
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if (posix_spawnattr_init(&spawnattr) != 0) {
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printf("Failed to init posix spawn attribute.");
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return;
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}
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cpu_type_t *wanted_type = pref_cpu_types;
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size_t attr_count = ArrayLength(pref_cpu_types);
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if (aRestartType & nsIAppStartup::eRestarti386) {
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wanted_type = cpu_i386_types;
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attr_count = ArrayLength(cpu_i386_types);
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} else if (aRestartType & nsIAppStartup::eRestartx86_64) {
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wanted_type = cpu_x64_86_types;
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attr_count = ArrayLength(cpu_x64_86_types);
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}
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// Set spawn attributes.
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size_t attr_ocount = 0;
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if (posix_spawnattr_setbinpref_np(&spawnattr, attr_count, wanted_type, &attr_ocount) != 0 ||
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attr_ocount != attr_count) {
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printf("Failed to set binary preference on posix spawn attribute.");
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posix_spawnattr_destroy(&spawnattr);
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return;
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}
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// Pass along our environment.
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char** envp = NULL;
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char*** cocoaEnvironment = _NSGetEnviron();
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if (cocoaEnvironment) {
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envp = *cocoaEnvironment;
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}
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int result = posix_spawnp(pid, argv_copy[0], NULL, &spawnattr, argv_copy, envp);
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posix_spawnattr_destroy(&spawnattr);
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if (result != 0) {
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printf("Process spawn failed with code %d!", result);
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}
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#endif
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}
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