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d1d7e2689d
The vast majority of these changes are in Linux specific code. They are the result of not having an automated style checker to validate the code when it was originally written. Others were caused when the common code was slightly adjusted for Linux. This patch contains no functional changes. It only refreshes the code to conform to style guide. Everyone submitting patches for inclusion upstream should now run 'make checkstyle' and resolve any warning prior to opening a pull request. The automated builders have been updated to fail a build if when 'make checkstyle' detects an issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1821
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_FRAME_H
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#define _SYS_FRAME_H
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#include <sys/types.h>
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#if defined(_LP64) || defined(_I32LPx)
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typedef long greg_t;
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#else
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typedef int greg_t;
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#endif
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struct frame {
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greg_t fr_savfp; /* saved frame pointer */
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greg_t fr_savpc; /* saved program counter */
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};
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/*
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* In the x86 world, a stack frame looks like this:
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*
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* |--------------------------|
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* 4n+8(%ebp) ->| argument word n |
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* | ... | (Previous frame)
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* 8(%ebp) ->| argument word 0 |
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* |--------------------------|--------------------
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* 4(%ebp) ->| return address |
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* |--------------------------|
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* 0(%ebp) ->| previous %ebp (optional) |
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* |--------------------------|
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* -4(%ebp) ->| unspecified | (Current frame)
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* | ... |
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* 0(%esp) ->| variable size |
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* |--------------------------|
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*/
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/*
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* Stack alignment macros.
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*/
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#define STACK_ALIGN32 4
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#define STACK_ENTRY_ALIGN32 4
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#define STACK_BIAS32 0
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#define SA32(x) (((x)+(STACK_ALIGN32-1)) & ~(STACK_ALIGN32-1))
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#define STACK_RESERVE32 0
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#define MINFRAME32 0
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#if defined(__amd64)
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/*
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* In the amd64 world, a stack frame looks like this:
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*
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* |--------------------------|
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* 8n+16(%rbp)->| argument word n |
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* | ... | (Previous frame)
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* 16(%rbp) ->| argument word 0 |
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* |--------------------------|--------------------
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* 8(%rbp) ->| return address |
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* |--------------------------|
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* 0(%rbp) ->| previous %rbp |
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* |--------------------------|
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* -8(%rbp) ->| unspecified | (Current frame)
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* | ... |
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* 0(%rsp) ->| variable size |
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* |--------------------------|
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* -128(%rsp) ->| reserved for function |
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* |--------------------------|
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*
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* The end of the input argument area must be aligned on a 16-byte
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* boundary; i.e. (%rsp - 8) % 16 == 0 at function entry.
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*
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* The 128-byte location beyond %rsp is considered to be reserved for
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* functions and is NOT modified by signal handlers. It can be used
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* to store temporary data that is not needed across function calls.
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*/
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/*
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* Stack alignment macros.
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*/
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#define STACK_ALIGN64 16
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#define STACK_ENTRY_ALIGN64 8
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#define STACK_BIAS64 0
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#define SA64(x) (((x)+(STACK_ALIGN64-1)) & ~(STACK_ALIGN64-1))
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#define STACK_RESERVE64 128
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#define MINFRAME64 0
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#define STACK_ALIGN STACK_ALIGN64
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#define STACK_ENTRY_ALIGN STACK_ENTRY_ALIGN64
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#define STACK_BIAS STACK_BIAS64
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#define SA(x) SA64(x)
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#define STACK_RESERVE STACK_RESERVE64
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#define MINFRAME MINFRAME64
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#elif defined(__i386)
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#define STACK_ALIGN STACK_ALIGN32
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#define STACK_ENTRY_ALIGN STACK_ENTRY_ALIGN32
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#define STACK_BIAS STACK_BIAS32
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#define SA(x) SA32(x)
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#define STACK_RESERVE STACK_RESERVE32
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#define MINFRAME MINFRAME32
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#endif /* __i386 */
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#endif /* _SYS_FRAME_H */
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