0,0 → 1,79 |
/* |
* Copyright (c) 2005 Ondrej Palkovsky |
* 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. |
*/ |
|
#ifndef KERN_amd64_CONTEXT_OFFSET_H_ |
#define KERN_amd64_CONTEXT_OFFSET_H_ |
|
#define OFFSET_SP 0x0 |
#define OFFSET_PC 0x8 |
#define OFFSET_RBX 0x10 |
#define OFFSET_RBP 0x18 |
#define OFFSET_R12 0x20 |
#define OFFSET_R13 0x28 |
#define OFFSET_R14 0x30 |
#define OFFSET_R15 0x38 |
|
#ifdef KERNEL |
# define OFFSET_IPL 0x40 |
#else |
# define OFFSET_TLS 0x40 |
#endif |
|
#ifdef __ASM__ |
|
# ctx: address of the structure with saved context |
# pc: return address |
.macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req |
movq \pc, OFFSET_PC(\ctx) |
movq %rsp, OFFSET_SP(\ctx) |
|
movq %rbx, OFFSET_RBX(\ctx) |
movq %rbp, OFFSET_RBP(\ctx) |
movq %r12, OFFSET_R12(\ctx) |
movq %r13, OFFSET_R13(\ctx) |
movq %r14, OFFSET_R14(\ctx) |
movq %r15, OFFSET_R15(\ctx) |
.endm |
|
# ctx: address of the structure with saved context |
.macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req |
movq OFFSET_R15(\ctx), %r15 |
movq OFFSET_R14(\ctx), %r14 |
movq OFFSET_R13(\ctx), %r13 |
movq OFFSET_R12(\ctx), %r12 |
movq OFFSET_RBP(\ctx), %rbp |
movq OFFSET_RBX(\ctx), %rbx |
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movq OFFSET_SP(\ctx), %rsp # ctx->sp -> %rsp |
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movq OFFSET_PC(\ctx), \pc |
.endm |
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#endif |
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#endif |