| 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 |
| |
| movq OFFSET_SP(\ctx), %rsp # ctx->sp -> %rsp |
| |
| movq OFFSET_PC(\ctx), \pc |
| .endm |
| |
| #endif |
| |
| #endif |