0,0 → 1,83 |
/* |
* Copyright (c) 2008 Josef Cejka |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
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/** @addtogroup ia32 |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef KERN_ia32_CONTEXT_OFFSET_H_ |
#define KERN_ia32_CONTEXT_OFFSET_H_ |
|
#define OFFSET_SP 0x0 |
#define OFFSET_PC 0x4 |
#define OFFSET_EBX 0x8 |
#define OFFSET_ESI 0xC |
#define OFFSET_EDI 0x10 |
#define OFFSET_EBP 0x14 |
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#ifdef KERNEL |
# define OFFSET_IPL 0x18 |
#else |
# define OFFSET_TLS 0x18 |
#endif |
|
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#ifdef __ASM__ |
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# ctx: address of the structure with saved context |
# pc: return address |
|
.macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req |
movl %esp,OFFSET_SP(\ctx) # %esp -> ctx->sp |
movl \pc,OFFSET_PC(\ctx) # %eip -> ctx->pc |
movl %ebx,OFFSET_EBX(\ctx) # %ebx -> ctx->ebx |
movl %esi,OFFSET_ESI(\ctx) # %esi -> ctx->esi |
movl %edi,OFFSET_EDI(\ctx) # %edi -> ctx->edi |
movl %ebp,OFFSET_EBP(\ctx) # %ebp -> ctx->ebp |
.endm |
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# ctx: address of the structure with saved context |
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.macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req |
movl OFFSET_SP(\ctx),%esp # ctx->sp -> %esp |
movl OFFSET_PC(\ctx),\pc # ctx->pc -> \pc |
movl OFFSET_EBX(\ctx),%ebx # ctx->ebx -> %ebx |
movl OFFSET_ESI(\ctx),%esi # ctx->esi -> %esi |
movl OFFSET_EDI(\ctx),%edi # ctx->edi -> %edi |
movl OFFSET_EBP(\ctx),%ebp # ctx->ebp -> %ebp |
.endm |
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#endif /* __ASM__ */ |
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#endif |
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/** @} |
*/ |
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