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Diffstat (limited to 'sys/include/arch/amd64/frame.h')
| -rw-r--r-- | sys/include/arch/amd64/frame.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/frame.h b/sys/include/arch/amd64/frame.h new file mode 100644 index 0000000..6239eff --- /dev/null +++ b/sys/include/arch/amd64/frame.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. 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. + * 3. Neither the name of VegaOS nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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. + */ + +/* $Id$ */ + +#ifndef _AMD64_FRAME_H_ +#define _AMD64_FRAME_H_ + +#if !defined(__ASSEMBLER__) +struct trapframe { + uint64_t trapno; + uint64_t rax; + uint64_t rcx; + uint64_t rdx; + uint64_t rbx; + uint64_t rsi; + uint64_t rdi; + uint64_t rbp; + uint64_t r8; + uint64_t r9; + uint64_t r10; + uint64_t r11; + uint64_t r12; + uint64_t r13; + uint64_t r14; + uint64_t r15; + /* Pushed by hardware */ + uint64_t error_code; + uint64_t rip; + uint64_t cs; + uint64_t rflags; + uint64_t rsp; + uint64_t ss; +}; +#else +/* + * XXX: Before this macro is invoked, + * you should determine if an error + * code will be present already on the + * stack. If not, push a null qword as + * padding (e.g push $0). + * + * There *must* be a value used + * as an error code whether that be + * a real error code or just padding. + * + * Failing to do so will result in + * undefined behaviour. + * + */ +.macro push_trapframe trapno + push %r15 + push %r14 + push %r13 + push %r12 + push %r11 + push %r10 + push %r9 + push %r8 + push %rbp + push %rdi + push %rsi + push %rbx + push %rdx + push %rcx + push %rax + push \trapno +.endm + +.macro pop_trapframe trapno + add $8, %rsp /* Trapno */ + pop %rax + pop %rcx + pop %rdx + pop %rbx + pop %rsi + pop %rdi + pop %rbp + pop %r8 + pop %r9 + pop %r10 + pop %r12 + pop %r13 + pop %r14 + pop %r15 + add $8, %rsp /* Pop error code */ + iretq +.endm +#endif /* !defined(__ASSEMBLER__) */ +#endif /* !_AMD64_FRAME_H_ */ |