mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 10:21:01 +03:00
a26baf285f
All changes needed for the libspl layer. This includes modifications to files directly copied from OpenSolaris and the addition of new files needed to fill in the gaps. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License, Version 1.0 only
|
|
* (the "License"). You may not use this file except in compliance
|
|
* with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#ifndef _SYS_FRAME_H
|
|
#define _SYS_FRAME_H
|
|
|
|
#include <sys/types.h>
|
|
|
|
#if defined(_LP64) || defined(_I32LPx)
|
|
typedef long greg_t;
|
|
#else
|
|
typedef int greg_t;
|
|
#endif
|
|
|
|
struct frame {
|
|
greg_t fr_savfp; /* saved frame pointer */
|
|
greg_t fr_savpc; /* saved program counter */
|
|
};
|
|
|
|
|
|
/*
|
|
* In the x86 world, a stack frame looks like this:
|
|
*
|
|
* |--------------------------|
|
|
* 4n+8(%ebp) ->| argument word n |
|
|
* | ... | (Previous frame)
|
|
* 8(%ebp) ->| argument word 0 |
|
|
* |--------------------------|--------------------
|
|
* 4(%ebp) ->| return address |
|
|
* |--------------------------|
|
|
* 0(%ebp) ->| previous %ebp (optional) |
|
|
* |--------------------------|
|
|
* -4(%ebp) ->| unspecified | (Current frame)
|
|
* | ... |
|
|
* 0(%esp) ->| variable size |
|
|
* |--------------------------|
|
|
*/
|
|
|
|
/*
|
|
* Stack alignment macros.
|
|
*/
|
|
|
|
#define STACK_ALIGN32 4
|
|
#define STACK_ENTRY_ALIGN32 4
|
|
#define STACK_BIAS32 0
|
|
#define SA32(x) (((x)+(STACK_ALIGN32-1)) & ~(STACK_ALIGN32-1))
|
|
#define STACK_RESERVE32 0
|
|
#define MINFRAME32 0
|
|
|
|
#if defined(__amd64)
|
|
|
|
/*
|
|
* In the amd64 world, a stack frame looks like this:
|
|
*
|
|
* |--------------------------|
|
|
* 8n+16(%rbp)->| argument word n |
|
|
* | ... | (Previous frame)
|
|
* 16(%rbp) ->| argument word 0 |
|
|
* |--------------------------|--------------------
|
|
* 8(%rbp) ->| return address |
|
|
* |--------------------------|
|
|
* 0(%rbp) ->| previous %rbp |
|
|
* |--------------------------|
|
|
* -8(%rbp) ->| unspecified | (Current frame)
|
|
* | ... |
|
|
* 0(%rsp) ->| variable size |
|
|
* |--------------------------|
|
|
* -128(%rsp) ->| reserved for function |
|
|
* |--------------------------|
|
|
*
|
|
* The end of the input argument area must be aligned on a 16-byte
|
|
* boundary; i.e. (%rsp - 8) % 16 == 0 at function entry.
|
|
*
|
|
* The 128-byte location beyond %rsp is considered to be reserved for
|
|
* functions and is NOT modified by signal handlers. It can be used
|
|
* to store temporary data that is not needed across function calls.
|
|
*/
|
|
|
|
/*
|
|
* Stack alignment macros.
|
|
*/
|
|
|
|
#define STACK_ALIGN64 16
|
|
#define STACK_ENTRY_ALIGN64 8
|
|
#define STACK_BIAS64 0
|
|
#define SA64(x) (((x)+(STACK_ALIGN64-1)) & ~(STACK_ALIGN64-1))
|
|
#define STACK_RESERVE64 128
|
|
#define MINFRAME64 0
|
|
|
|
#define STACK_ALIGN STACK_ALIGN64
|
|
#define STACK_ENTRY_ALIGN STACK_ENTRY_ALIGN64
|
|
#define STACK_BIAS STACK_BIAS64
|
|
#define SA(x) SA64(x)
|
|
#define STACK_RESERVE STACK_RESERVE64
|
|
#define MINFRAME MINFRAME64
|
|
|
|
#elif defined(__i386)
|
|
|
|
#define STACK_ALIGN STACK_ALIGN32
|
|
#define STACK_ENTRY_ALIGN STACK_ENTRY_ALIGN32
|
|
#define STACK_BIAS STACK_BIAS32
|
|
#define SA(x) SA32(x)
|
|
#define STACK_RESERVE STACK_RESERVE32
|
|
#define MINFRAME MINFRAME32
|
|
|
|
#endif /* __i386 */
|
|
|
|
#endif /* _SYS_FRAME_H */
|