| 1 | /* Internal definitions for pthreads library. |
|---|
| 2 | Copyright (C) 2000-2024 Free Software Foundation, Inc. |
|---|
| 3 | This file is part of the GNU C Library. |
|---|
| 4 | |
|---|
| 5 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 6 | modify it under the terms of the GNU Lesser General Public |
|---|
| 7 | License as published by the Free Software Foundation; either |
|---|
| 8 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 9 | |
|---|
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
|---|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 13 | Lesser General Public License for more details. |
|---|
| 14 | |
|---|
| 15 | You should have received a copy of the GNU Lesser General Public |
|---|
| 16 | License along with the GNU C Library; if not, see |
|---|
| 17 | <https://www.gnu.org/licenses/>. */ |
|---|
| 18 | |
|---|
| 19 | #ifndef _PT_SYSDEP_H |
|---|
| 20 | #define _PT_SYSDEP_H 1 |
|---|
| 21 | |
|---|
| 22 | #include <stddef.h> |
|---|
| 23 | #include <mach.h> |
|---|
| 24 | |
|---|
| 25 | /* XXX */ |
|---|
| 26 | #define _POSIX_THREAD_THREADS_MAX 64 |
|---|
| 27 | |
|---|
| 28 | /* The default stack size. */ |
|---|
| 29 | #define PTHREAD_STACK_DEFAULT (8 * 1024 * 1024) |
|---|
| 30 | |
|---|
| 31 | #define PTHREAD_SYSDEP_MEMBERS \ |
|---|
| 32 | thread_t kernel_thread; \ |
|---|
| 33 | mach_msg_header_t wakeupmsg; |
|---|
| 34 | |
|---|
| 35 | extern __thread struct __pthread *___pthread_self; |
|---|
| 36 | libc_hidden_tls_proto (___pthread_self) |
|---|
| 37 | |
|---|
| 38 | #ifdef DEBUG |
|---|
| 39 | #define _pthread_self() \ |
|---|
| 40 | ({ \ |
|---|
| 41 | struct __pthread *thread; \ |
|---|
| 42 | \ |
|---|
| 43 | assert (GL (dl_pthread_threads)); \ |
|---|
| 44 | thread = ___pthread_self; \ |
|---|
| 45 | \ |
|---|
| 46 | assert (thread); \ |
|---|
| 47 | assert (({ mach_port_t ktid = __mach_thread_self (); \ |
|---|
| 48 | int ok = thread->kernel_thread == ktid; \ |
|---|
| 49 | __mach_port_deallocate (__mach_task_self (), ktid);\ |
|---|
| 50 | ok; })); \ |
|---|
| 51 | thread; \ |
|---|
| 52 | }) |
|---|
| 53 | #else |
|---|
| 54 | #define _pthread_self() ___pthread_self |
|---|
| 55 | #endif |
|---|
| 56 | |
|---|
| 57 | extern inline void |
|---|
| 58 | __attribute__ ((__always_inline__)) |
|---|
| 59 | __pthread_stack_dealloc (void *stackaddr, size_t stacksize) |
|---|
| 60 | { |
|---|
| 61 | __vm_deallocate (__mach_task_self (), (vm_offset_t) stackaddr, stacksize); |
|---|
| 62 | } |
|---|
| 63 | |
|---|
| 64 | /* Change thread THREAD's program counter to PC if SET_PC is true, |
|---|
| 65 | its stack pointer to SP if SET_IP is true, and its thread pointer |
|---|
| 66 | to TP if SET_TP is true. */ |
|---|
| 67 | extern int __thread_set_pcsptp (thread_t thread, |
|---|
| 68 | int set_pc, void *pc, |
|---|
| 69 | int set_sp, void *sp, int set_tp, void *tp); |
|---|
| 70 | |
|---|
| 71 | |
|---|
| 72 | #endif /* pt-sysdep.h */ |
|---|
| 73 | |
|---|
