2 * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
34 .private_extern __current_pid
37 L__current_pid_addr = __current_pid
39 #if defined(__DYNAMIC__)
40 #define GET_CURRENT_PID \
44 leal L__current_pid_addr-0b(%ecx), %ecx
46 #define __current_pid (%ecx)
49 #define GET_CURRENT_PID
53 * If __current_pid is > 0, return it, else make syscall.
54 * If __current_pid is 0, cache result of syscall.
59 movl __current_pid, %eax
64 UNIX_SYSCALL_NONAME(getpid, 0)
69 cmpxchgl %edx, __current_pid
73 #elif defined(__x86_64__)
76 .private_extern __current_pid
81 * If __current_pid is > 0, return it, else make syscall.
82 * If __current_pid is 0, cache result of syscall.
86 movl __current_pid(%rip), %eax
91 UNIX_SYSCALL_NONAME(getpid, 0)
94 leaq __current_pid(%rip), %rcx
101 #error Unsupported architecture