libpthread/nptl/sysdeps/sh/pthreaddef.h

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <sysdep.h>
  19
  20 /* Required stack pointer alignment at beginning.  */
  21 #define STACK_ALIGN             8
  22
  23 /* Minimal stack size after allocating thread descriptor and guard size.  */
  24 #define MINIMAL_REST_STACK      2048
  25
  26 /* Alignment requirement for TCB.  */
  27 #define TCB_ALIGNMENT           8
  28
  29
  30 /* Location of current stack frame.  */
  31 #define CURRENT_STACK_FRAME     __builtin_frame_address (0)
  32
  33
  34 /* XXX Until we have a better place keep the definitions here.  */
  35
  36 /* While there is no such syscall.  */
  37 #define __exit_thread_inline(val) \
  38   while (1) {                                                                 \
  39     if (__builtin_constant_p (val) && (val) == 0)                             \
  40       __asm__ __volatile__ ("mov #0,r4; mov %0,r3; trapa #0x11\n\t" SYSCALL_INST_PAD  \
  41                    :: "i" (__NR_exit));  \
  42     else                                                                      \
  43       __asm__ __volatile__ ("mov %1,r4; mov %0,r3; trapa #0x11\n\t" SYSCALL_INST_PAD  \
  44                     :: "i" (__NR_exit), "r" (val));                           \
  45   }