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