ucontext_constants.h revision 4cad4cec53f206061f195aa9dcde7f504d69cd3f 
1// Copyright (c) 2012, Google Inc.
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met:
7//
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
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14//     * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// This header can be included either from a C, C++ or Assembly file.
31// Its purpose is to contain constants that must match the offsets of
32// various fields in ucontext_t.
33//
34// They should match the definitions from
35// src/common/android/include/sys/ucontext.h
36//
37// Used by src/common/android/breakpad_getcontext.S
38// Tested by src/common/android/testing/breakpad_getcontext_unittest.cc
39
40#ifndef GOOGLEBREAKPAD_COMMON_ANDROID_UCONTEXT_CONSTANTS_H
41#define GOOGLEBREAKPAD_COMMON_ANDROID_UCONTEXT_CONSTANTS_H
42
43#if defined(__arm__)
44
45#define  MCONTEXT_GREGS_OFFSET     32
46#define  UCONTEXT_SIGMASK_OFFSET   104
47
48#elif defined(__aarch64__)
49
50#define  UCONTEXT_SIGMASK_OFFSET     40
51
52#define  MCONTEXT_GREGS_OFFSET       184
53#define  MCONTEXT_SP_OFFSET          432
54#define  MCONTEXT_PC_OFFSET          440
55#define  MCONTEXT_PSTATE_OFFSET      448
56#define  MCONTEXT_EXTENSION_OFFSET   464
57
58#define  FPSIMD_MAGIC                0x46508001
59
60#define  FPSIMD_CONTEXT_MAGIC_OFFSET 0
61#define  FPSIMD_CONTEXT_SIZE_OFFSET  4
62#define  FPSIMD_CONTEXT_FPSR_OFFSET  8
63#define  FPSIMD_CONTEXT_FPCR_OFFSET  12
64#define  FPSIMD_CONTEXT_VREGS_OFFSET 16
65#define  FPSIMD_CONTEXT_SIZE         528
66
67#define  REGISTER_SIZE               8
68#define  SIMD_REGISTER_SIZE          16
69
70#elif defined(__i386__)
71
72#define  MCONTEXT_GREGS_OFFSET     20
73#define  MCONTEXT_GS_OFFSET        (MCONTEXT_GREGS_OFFSET + 0*4)
74#define  MCONTEXT_FS_OFFSET        (MCONTEXT_GREGS_OFFSET + 1*4)
75#define  MCONTEXT_ES_OFFSET        (MCONTEXT_GREGS_OFFSET + 2*4)
76#define  MCONTEXT_DS_OFFSET        (MCONTEXT_GREGS_OFFSET + 3*4)
77#define  MCONTEXT_EDI_OFFSET       (MCONTEXT_GREGS_OFFSET + 4*4)
78#define  MCONTEXT_ESI_OFFSET       (MCONTEXT_GREGS_OFFSET + 5*4)
79#define  MCONTEXT_EBP_OFFSET       (MCONTEXT_GREGS_OFFSET + 6*4)
80#define  MCONTEXT_ESP_OFFSET       (MCONTEXT_GREGS_OFFSET + 7*4)
81#define  MCONTEXT_EBX_OFFSET       (MCONTEXT_GREGS_OFFSET + 8*4)
82#define  MCONTEXT_EDX_OFFSET       (MCONTEXT_GREGS_OFFSET + 9*4)
83#define  MCONTEXT_ECX_OFFSET       (MCONTEXT_GREGS_OFFSET + 10*4)
84#define  MCONTEXT_EAX_OFFSET       (MCONTEXT_GREGS_OFFSET + 11*4)
85#define  MCONTEXT_TRAPNO_OFFSET    (MCONTEXT_GREGS_OFFSET + 12*4)
86#define  MCONTEXT_ERR_OFFSET       (MCONTEXT_GREGS_OFFSET + 13*4)
87#define  MCONTEXT_EIP_OFFSET       (MCONTEXT_GREGS_OFFSET + 14*4)
88#define  MCONTEXT_CS_OFFSET        (MCONTEXT_GREGS_OFFSET + 15*4)
89#define  MCONTEXT_EFL_OFFSET       (MCONTEXT_GREGS_OFFSET + 16*4)
90#define  MCONTEXT_UESP_OFFSET      (MCONTEXT_GREGS_OFFSET + 17*4)
91#define  MCONTEXT_SS_OFFSET        (MCONTEXT_GREGS_OFFSET + 18*4)
92
93#define  UCONTEXT_SIGMASK_OFFSET   108
94
95#define  UCONTEXT_FPREGS_OFFSET       96
96#define  UCONTEXT_FPREGS_MEM_OFFSET   116
97
98#elif defined(__mips__)
99
100#define  MCONTEXT_PC_OFFSET        32
101#define  MCONTEXT_GREGS_OFFSET     40
102#define  MCONTEXT_FPREGS_OFFSET    296
103#define  MCONTEXT_FPC_CSR          556
104#define  UCONTEXT_SIGMASK_OFFSET   616
105
106#else
107#error "This header has not been ported for your CPU"
108#endif
109
110#endif  // GOOGLEBREAKPAD_COMMON_ANDROID_UCONTEXT_CONSTANTS_H
111