?? pthreaddef.h
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/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *//* Default stack size. */#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)/* Required stack pointer alignment at beginning. SSE requires 16 bytes. */#define STACK_ALIGN 16/* Minimal stack size after allocating thread descriptor and guard size. */#define MINIMAL_REST_STACK 2048/* Alignment requirement for TCB. */#define TCB_ALIGNMENT 16/* Location of current stack frame. The frame pointer is not usable. */#define CURRENT_STACK_FRAME \ ({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; })/* We prefer to have the stack allocated in the low 4GB since this allows faster context switches. */#define ARCH_MAP_FLAGS MAP_32BIT/* If it is not possible to allocate memory there retry without that flag. */#define ARCH_RETRY_MMAP(size) \ mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, \ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)/* XXX Until we have a better place keep the definitions here. *//* While there is no such syscall. */#define __exit_thread_inline(val) \ asm volatile ("syscall" :: "a" (__NR_exit), "D" (val))
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