160 lines
4.2 KiB
C
160 lines
4.2 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 _IA32_SYS_STACK_H
|
|
#define _IA32_SYS_STACK_H
|
|
|
|
#if !defined(_ASM)
|
|
|
|
#include <sys/types.h>
|
|
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
#if defined(_KERNEL) && !defined(_ASM)
|
|
|
|
#if defined(ZFS_DEBUG)
|
|
#if STACK_ALIGN == 4
|
|
#define ASSERT_STACK_ALIGNED() \
|
|
{ \
|
|
uint32_t __tmp; \
|
|
ASSERT((((uintptr_t)&__tmp) & (STACK_ALIGN - 1)) == 0); \
|
|
}
|
|
#elif (STACK_ALIGN == 16) && (_LONG_DOUBLE_ALIGNMENT == 16)
|
|
#define ASSERT_STACK_ALIGNED() \
|
|
{ \
|
|
long double __tmp; \
|
|
ASSERT((((uintptr_t)&__tmp) & (STACK_ALIGN - 1)) == 0); \
|
|
}
|
|
#endif
|
|
#else /* DEBUG */
|
|
#define ASSERT_STACK_ALIGNED()
|
|
#endif /* DEBUG */
|
|
|
|
struct regs;
|
|
|
|
void traceregs(struct regs *);
|
|
void traceback(caddr_t);
|
|
|
|
#endif /* defined(_KERNEL) && !defined(_ASM) */
|
|
|
|
#define STACK_GROWTH_DOWN /* stacks grow from high to low addresses */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _IA32_SYS_STACK_H */
|