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166bb3eac3
The next commit is going to introduce a new implementation of THREAD_GSCOPE_WAIT which needs to access the list of threads. Since it must be usable from the dynamic laoder, we have to move the symbols for the list of threads into the loader. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20210915171110.226187-2-bugaevc@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/* Internal definitions for pthreads library.
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Copyright (C) 2000-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _PT_SYSDEP_H
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#define _PT_SYSDEP_H 1
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#include <mach.h>
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/* XXX */
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#define _POSIX_THREAD_THREADS_MAX 64
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/* The default stack size. */
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#define PTHREAD_STACK_DEFAULT (8 * 1024 * 1024)
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#define PTHREAD_SYSDEP_MEMBERS \
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thread_t kernel_thread; \
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mach_msg_header_t wakeupmsg;
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extern __thread struct __pthread *___pthread_self;
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#ifdef DEBUG
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#define _pthread_self() \
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({ \
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struct __pthread *thread; \
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\
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assert (GL (dl_pthread_threads)); \
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thread = ___pthread_self; \
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\
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assert (thread); \
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assert (({ mach_port_t ktid = __mach_thread_self (); \
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int ok = thread->kernel_thread == ktid; \
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__mach_port_deallocate (__mach_task_self (), ktid);\
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ok; })); \
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thread; \
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})
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#else
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#define _pthread_self() ___pthread_self
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#endif
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extern inline void
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__attribute__ ((__always_inline__))
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__pthread_stack_dealloc (void *stackaddr, size_t stacksize)
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{
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__vm_deallocate (__mach_task_self (), (vm_offset_t) stackaddr, stacksize);
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}
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/* Change thread THREAD's program counter to PC if SET_PC is true,
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its stack pointer to SP if SET_IP is true, and its thread pointer
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to TP if SET_TP is true. */
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extern int __thread_set_pcsptp (thread_t thread,
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int set_pc, void *pc,
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int set_sp, void *sp, int set_tp, void *tp);
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#endif /* pt-sysdep.h */
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