xref: /aosp_15_r20/system/unwinding/libunwindstack/include/unwindstack/UcontextX86_64.h (revision eb293b8f56ee8303637c5595cfcdeef8039e85c6)
1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #pragma once
30 
31 #include <stdint.h>
32 
33 #include <unwindstack/MachineX86_64.h>
34 
35 namespace unwindstack {
36 
37 struct x86_64_stack_t {
38   uint64_t ss_sp;    // void __user*
39   int32_t ss_flags;  // int
40   int32_t pad;
41   uint64_t ss_size;  // size_t
42 };
43 
44 struct x86_64_mcontext_t {
45   uint64_t r8;
46   uint64_t r9;
47   uint64_t r10;
48   uint64_t r11;
49   uint64_t r12;
50   uint64_t r13;
51   uint64_t r14;
52   uint64_t r15;
53   uint64_t rdi;
54   uint64_t rsi;
55   uint64_t rbp;
56   uint64_t rbx;
57   uint64_t rdx;
58   uint64_t rax;
59   uint64_t rcx;
60   uint64_t rsp;
61   uint64_t rip;
62   uint64_t efl;
63   uint64_t csgsfs;
64   uint64_t err;
65   uint64_t trapno;
66   uint64_t oldmask;
67   uint64_t cr2;
68   // Only care about the registers, skip everything else.
69 };
70 
71 struct x86_64_ucontext_t {
72   uint64_t uc_flags;  // unsigned long
73   uint64_t uc_link;   // struct ucontext*
74   x86_64_stack_t uc_stack;
75   x86_64_mcontext_t uc_mcontext;
76   // Nothing else is used, so don't define it.
77 };
78 
79 }  // namespace unwindstack
80