63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
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/* swapstk.h - stack frame created by swap (IA-32) */
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/*
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* Copyright (c) 2011-2012, 2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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This file details the stack frame generated by _Swap() when it saves a task
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or fiber's context. This is specific to the IA-32 processor architecture.
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NOTE: _Swap() does not use this file as it uses the push instruction to save a
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context. Changes to the file will not automatically be picked up by _Swap().
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Conversely, changes to _Swap() should be mirrored here if the stack frame is
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modified.
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*/
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#ifndef _SWAPSTK_H
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#define _SWAPSTK_H
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#ifndef _ASMLANGUAGE
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/* Stack of a saved context */
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typedef struct s_SwapStk {
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unsigned int eax; /* EAX register */
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unsigned int ebp; /* EBP register */
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unsigned int ebx; /* EBX register */
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unsigned int esi; /* ESI register */
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unsigned int edi; /* EDI register */
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unsigned int retAddr; /* Return address of caller of _Swap() */
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unsigned int param; /* Parameter passed to _Swap() */
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} tSwapStk;
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#endif /* _ASMLANGUAGE */
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#endif /* _SWAPSTK_H */
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