/thirdparty/breakpad/google_breakpad/common/minidump_cpu_sparc.h

  1/* Copyright (c) 2006, 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/* minidump_format.h: A cross-platform reimplementation of minidump-related
 31 * portions of DbgHelp.h from the Windows Platform SDK.
 32 *
 33 * (This is C99 source, please don't corrupt it with C++.)
 34 *
 35 * This file contains the necessary definitions to read minidump files
 36 * produced on sparc.  These files may be read on any platform provided
 37 * that the alignments of these structures on the processing system are
 38 * identical to the alignments of these structures on the producing system.
 39 * For this reason, precise-sized types are used.  The structures defined
 40 * by this file have been laid out to minimize alignment problems by ensuring
 41 * ensuring that all members are aligned on their natural boundaries.  In
 42 * In some cases, tail-padding may be significant when different ABIs specify
 43 * different tail-padding behaviors.  To avoid problems when reading or
 44 * writing affected structures, MD_*_SIZE macros are provided where needed,
 45 * containing the useful size of the structures without padding.
 46 *
 47 * Structures that are defined by Microsoft to contain a zero-length array
 48 * are instead defined here to contain an array with one element, as
 49 * zero-length arrays are forbidden by standard C and C++.  In these cases,
 50 * *_minsize constants are provided to be used in place of sizeof.  For a
 51 * cleaner interface to these sizes when using C++, see minidump_size.h.
 52 *
 53 * These structures are also sufficient to populate minidump files.
 54 *
 55 * These definitions may be extended to support handling minidump files
 56 * for other CPUs and other operating systems.
 57 *
 58 * Because precise data type sizes are crucial for this implementation to
 59 * function properly and portably in terms of interoperability with minidumps
 60 * produced by DbgHelp on Windows, a set of primitive types with known sizes
 61 * are used as the basis of each structure defined by this file.  DbgHelp
 62 * on Windows is assumed to be the reference implementation; this file
 63 * seeks to provide a cross-platform compatible implementation.  To avoid
 64 * collisions with the types and values defined and used by DbgHelp in the
 65 * event that this implementation is used on Windows, each type and value
 66 * defined here is given a new name, beginning with "MD".  Names of the
 67 * equivalent types and values in the Windows Platform SDK are given in
 68 * comments.
 69 *
 70 * Author: Mark Mentovai
 71 * Change to split into its own file: Neal Sidhwaney */
 72
 73/*
 74 * SPARC support, see (solaris)sys/procfs_isa.h also
 75 */
 76
 77#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_SPARC_H__
 78#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_SPARC_H__
 79
 80#define MD_FLOATINGSAVEAREA_SPARC_FPR_COUNT 32
 81
 82typedef struct {
 83
 84  /* FPU floating point regs */
 85  u_int64_t	regs[MD_FLOATINGSAVEAREA_SPARC_FPR_COUNT];
 86
 87  u_int64_t	filler;
 88  u_int64_t	fsr;        /* FPU status register */
 89} MDFloatingSaveAreaSPARC;  /* FLOATING_SAVE_AREA */
 90
 91#define MD_CONTEXT_SPARC_GPR_COUNT 32
 92
 93typedef struct {
 94  /* The next field determines the layout of the structure, and which parts
 95   * of it are populated
 96   */
 97  u_int32_t	context_flags;
 98  u_int32_t	flag_pad;
 99  /*
100   * General register access (SPARC).
101   * Don't confuse definitions here with definitions in <sys/regset.h>.
102   * Registers are 32 bits for ILP32, 64 bits for LP64.
103   * SPARC V7/V8 is for 32bit, SPARC V9 is for 64bit
104   */
105
106  /* 32 Integer working registers */
107
108  /* g_r[0-7]   global registers(g0-g7)
109   * g_r[8-15]  out registers(o0-o7)
110   * g_r[16-23] local registers(l0-l7)
111   * g_r[24-31] in registers(i0-i7)
112   */
113  u_int64_t     g_r[MD_CONTEXT_SPARC_GPR_COUNT];
114
115  /* several control registers */
116
117  /* Processor State register(PSR) for SPARC V7/V8
118   * Condition Code register (CCR) for SPARC V9
119   */
120  u_int64_t     ccr;
121
122  u_int64_t     pc;     /* Program Counter register (PC) */
123  u_int64_t     npc;    /* Next Program Counter register (nPC) */
124  u_int64_t     y;      /* Y register (Y) */
125
126  /* Address Space Identifier register (ASI) for SPARC V9
127   * WIM for SPARC V7/V8
128   */
129  u_int64_t     asi;
130
131  /* Floating-Point Registers State register (FPRS) for SPARC V9
132   * TBR for for SPARC V7/V8
133   */
134  u_int64_t     fprs;
135
136  /* The next field is included with MD_CONTEXT_SPARC_FLOATING_POINT */
137  MDFloatingSaveAreaSPARC float_save;
138
139} MDRawContextSPARC;  /* CONTEXT_SPARC */
140
141/* For (MDRawContextSPARC).context_flags.  These values indicate the type of
142 * context stored in the structure.  MD_CONTEXT_SPARC is Breakpad-defined.  Its
143 * value was chosen to avoid likely conflicts with MD_CONTEXT_* for other
144 * CPUs. */
145#define MD_CONTEXT_SPARC                 0x10000000
146#define MD_CONTEXT_SPARC_CONTROL         (MD_CONTEXT_SPARC | 0x00000001)
147#define MD_CONTEXT_SPARC_INTEGER         (MD_CONTEXT_SPARC | 0x00000002)
148#define MD_CONTEXT_SAPARC_FLOATING_POINT (MD_CONTEXT_SPARC | 0x00000004)
149#define MD_CONTEXT_SAPARC_EXTRA          (MD_CONTEXT_SPARC | 0x00000008)
150
151#define MD_CONTEXT_SPARC_FULL            (MD_CONTEXT_SPARC_CONTROL | \
152                                          MD_CONTEXT_SPARC_INTEGER)
153
154#define MD_CONTEXT_SPARC_ALL             (MD_CONTEXT_SPARC_FULL | \
155                                          MD_CONTEXT_SAPARC_FLOATING_POINT | \
156                                          MD_CONTEXT_SAPARC_EXTRA)
157
158#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_SPARC_H__ */