[thirdparty/glibc.git] / sysdeps / i386 / nptl / pthreaddef.h

/* Copyright (C) 2002-2015 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, see
   <http://www.gnu.org/licenses/>.  */

/* 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.

   Some processors such as Intel Atom pay a big penalty on every
   access using a segment override if that segment's base is not
   aligned to the size of a cache line.  (See Intel 64 and IA-32
   Architectures Optimization Reference Manual, section 13.3.3.3,
   "Segment Base".)  On such machines, a cache line is 64 bytes.  */
#define TCB_ALIGNMENT		64


/* Location of current stack frame.  */
#define CURRENT_STACK_FRAME	__builtin_frame_address (0)
Commit	Line	Data
b168057a	1	/* Copyright (C) 2002-2015 Free Software Foundation, Inc.
76a50749 UD	2	This file is part of the GNU C Library.
	3	Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
76a50749 UD	18
	19	/* Default stack size. */
	20	#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
	21
	22	/* Required stack pointer alignment at beginning. SSE requires 16
	23	bytes. */
	24	#define STACK_ALIGN 16
	25
	26	/* Minimal stack size after allocating thread descriptor and guard size. */
	27	#define MINIMAL_REST_STACK 2048
	28
5744c68d RM	29	/* Alignment requirement for TCB.
	30
	31	Some processors such as Intel Atom pay a big penalty on every
	32	access using a segment override if that segment's base is not
	33	aligned to the size of a cache line. (See Intel 64 and IA-32
	34	Architectures Optimization Reference Manual, section 13.3.3.3,
	35	"Segment Base".) On such machines, a cache line is 64 bytes. */
	36	#define TCB_ALIGNMENT 64
76a50749	37
76a50749 UD	38
	39	/* Location of current stack frame. */
	40	#define CURRENT_STACK_FRAME __builtin_frame_address (0)