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glibc  2.9
pthreaddef.h
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00001 /* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 /* Default stack size.  */
00020 #define ARCH_STACK_DEFAULT_SIZE    (2 * 1024 * 1024)
00021 
00022 /* Required stack pointer alignment at beginning.  SSE requires 16
00023    bytes.  */
00024 #define STACK_ALIGN         16
00025 
00026 /* Minimal stack size after allocating thread descriptor and guard size.  */
00027 #define MINIMAL_REST_STACK  2048
00028 
00029 /* Alignment requirement for TCB.  */
00030 #define TCB_ALIGNMENT              16
00031 
00032 
00033 /* Location of current stack frame.
00034 
00035    __builtin_frame_address (0) returns the value of the hard frame
00036    pointer, which will point at the location of the saved PC on the
00037    stack.  Below this in memory is the remainder of the linkage info,
00038    occupying 12 bytes.  Therefore in order to address from
00039    CURRENT_STACK_FRAME using "struct layout", we need to have the macro
00040    return the hard FP minus 12.  Of course, this makes no sense
00041    without the obsolete APCS stack layout...  */
00042 #define CURRENT_STACK_FRAME (__builtin_frame_address (0) - 12)
00043 
00044 
00045 /* XXX Until we have a better place keep the definitions here.  */
00046 #define __exit_thread_inline(val) \
00047   INLINE_SYSCALL (exit, 1, (val))