summaryrefslogtreecommitdiffstats
blob: 61f41938655e83b495c3c9dd91f9d59d2f186ea1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/* Copyright (c) 2008, Google Inc.
 * 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.
 *     * Neither the name of Google Inc. 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. */

/* minidump_format.h: A cross-platform reimplementation of minidump-related
 * portions of DbgHelp.h from the Windows Platform SDK.
 *
 * (This is C99 source, please don't corrupt it with C++.)
 *
 * This file contains the necessary definitions to read minidump files
 * produced on ppc64.  These files may be read on any platform provided
 * that the alignments of these structures on the processing system are
 * identical to the alignments of these structures on the producing system.
 * For this reason, precise-sized types are used.  The structures defined
 * by this file have been laid out to minimize alignment problems by ensuring
 * ensuring that all members are aligned on their natural boundaries.  In
 * In some cases, tail-padding may be significant when different ABIs specify
 * different tail-padding behaviors.  To avoid problems when reading or
 * writing affected structures, MD_*_SIZE macros are provided where needed,
 * containing the useful size of the structures without padding.
 *
 * Structures that are defined by Microsoft to contain a zero-length array
 * are instead defined here to contain an array with one element, as
 * zero-length arrays are forbidden by standard C and C++.  In these cases,
 * *_minsize constants are provided to be used in place of sizeof.  For a
 * cleaner interface to these sizes when using C++, see minidump_size.h.
 *
 * These structures are also sufficient to populate minidump files.
 *
 * These definitions may be extended to support handling minidump files
 * for other CPUs and other operating systems.
 *
 * Because precise data type sizes are crucial for this implementation to
 * function properly and portably in terms of interoperability with minidumps
 * produced by DbgHelp on Windows, a set of primitive types with known sizes
 * are used as the basis of each structure defined by this file.  DbgHelp
 * on Windows is assumed to be the reference implementation; this file
 * seeks to provide a cross-platform compatible implementation.  To avoid
 * collisions with the types and values defined and used by DbgHelp in the
 * event that this implementation is used on Windows, each type and value
 * defined here is given a new name, beginning with "MD".  Names of the
 * equivalent types and values in the Windows Platform SDK are given in
 * comments.
 *
 * Author: Neal Sidhwaney */


/*
 * Breakpad minidump extension for PPC64 support.  Based on Darwin/Mac OS X'
 * mach/ppc/_types.h
 */

#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__

#include "minidump_cpu_ppc.h"

// these types are the same in ppc64 & ppc
typedef MDFloatingSaveAreaPPC MDFloatingSaveAreaPPC64;
typedef MDVectorSaveAreaPPC MDVectorSaveAreaPPC64;

#define MD_CONTEXT_PPC64_GPR_COUNT MD_CONTEXT_PPC_GPR_COUNT

typedef struct {
  /* context_flags is not present in ppc_thread_state, but it aids
   * identification of MDRawContextPPC among other raw context types,
   * and it guarantees alignment when we get to float_save. */
  uint64_t              context_flags;

  uint64_t              srr0;    /* Machine status save/restore: stores pc
                                  * (instruction) */
  uint64_t              srr1;    /* Machine status save/restore: stores msr
                                  * (ps, program/machine state) */
  /* ppc_thread_state contains 32 fields, r0 .. r31.  Here, an array is
   * used for brevity. */
  uint64_t              gpr[MD_CONTEXT_PPC64_GPR_COUNT];
  uint64_t              cr;      /* Condition */
  uint64_t              xer;     /* Integer (fiXed-point) exception */
  uint64_t              lr;      /* Link */
  uint64_t              ctr;     /* Count */
  uint64_t              vrsave;  /* Vector save */

  /* float_save and vector_save aren't present in ppc_thread_state, but
   * are represented in separate structures that still define a thread's
   * context. */
  MDFloatingSaveAreaPPC float_save;
  MDVectorSaveAreaPPC   vector_save;
} MDRawContextPPC64;  /* Based on ppc_thread_state */

/* Indices into gpr for registers with a dedicated or conventional purpose. */
enum MDPPC64RegisterNumbers {
  MD_CONTEXT_PPC64_REG_SP = 1
};

/* For (MDRawContextPPC).context_flags.  These values indicate the type of
 * context stored in the structure.  MD_CONTEXT_PPC is Breakpad-defined.  Its
 * value was chosen to avoid likely conflicts with MD_CONTEXT_* for other
 * CPUs. */
#define MD_CONTEXT_PPC64                0x01000000
#define MD_CONTEXT_PPC64_BASE           (MD_CONTEXT_PPC64 | 0x00000001)
#define MD_CONTEXT_PPC64_FLOATING_POINT (MD_CONTEXT_PPC64 | 0x00000008)
#define MD_CONTEXT_PPC64_VECTOR         (MD_CONTEXT_PPC64 | 0x00000020)

#define MD_CONTEXT_PPC64_FULL           MD_CONTEXT_PPC64_BASE
#define MD_CONTEXT_PPC64_ALL            (MD_CONTEXT_PPC64_FULL | \
                                         MD_CONTEXT_PPC64_FLOATING_POINT | \
                                         MD_CONTEXT_PPC64_VECTOR)

#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__ */