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pthreaddef.h

/* 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.  */
#define CURRENT_STACK_FRAME   __builtin_frame_address (0)


/* XXX Until we have a better place keep the definitions here.  */

/* While there is no such syscall.  */
#define __exit_thread_inline(val) \
  while (1) {                                                     \
    if (__builtin_constant_p (val) && (val) == 0)                       \
      asm volatile ("xorl %%ebx, %%ebx; int $0x80" :: "a" (__NR_exit));       \
    else                                                    \
      asm volatile ("movl %1, %%ebx; int $0x80"                         \
                :: "a" (__NR_exit), "r" (val));                   \
  }

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