about summary refs log tree commit diff
path: root/nptl/sysdeps/x86_64/pthreaddef.h
blob: 8fe610004f6772fd2f6a8e2c63e27199eeb5babc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/* 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

/* The signal used for asynchronous cancelation.  */
#define SIGCANCEL		__SIGRTMIN


/* Location of current stack frame.  The frame pointer is not usable.  */
#define CURRENT_STACK_FRAME \
  ({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; })


/* 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))