1 /* Copyright (c) 2008, 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 ppc64. 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: Neal Sidhwaney */ 71 72 73 /* 74 * Breakpad minidump extension for PPC64 support. Based on Darwin/Mac OS X' 75 * mach/ppc/_types.h 76 */ 77 78 #ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__ 79 #define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__ 80 81 #include "minidump_cpu_ppc.h" 82 83 // these types are the same in ppc64 & ppc 84 typedef MDFloatingSaveAreaPPC MDFloatingSaveAreaPPC64; 85 typedef MDVectorSaveAreaPPC MDVectorSaveAreaPPC64; 86 87 #define MD_CONTEXT_PPC64_GPR_COUNT MD_CONTEXT_PPC_GPR_COUNT 88 89 typedef struct { 90 /* context_flags is not present in ppc_thread_state, but it aids 91 * identification of MDRawContextPPC among other raw context types, 92 * and it guarantees alignment when we get to float_save. */ 93 uint64_t context_flags; 94 95 uint64_t srr0; /* Machine status save/restore: stores pc 96 * (instruction) */ 97 uint64_t srr1; /* Machine status save/restore: stores msr 98 * (ps, program/machine state) */ 99 /* ppc_thread_state contains 32 fields, r0 .. r31. Here, an array is 100 * used for brevity. */ 101 uint64_t gpr[MD_CONTEXT_PPC64_GPR_COUNT]; 102 uint64_t cr; /* Condition */ 103 uint64_t xer; /* Integer (fiXed-point) exception */ 104 uint64_t lr; /* Link */ 105 uint64_t ctr; /* Count */ 106 uint64_t vrsave; /* Vector save */ 107 108 /* float_save and vector_save aren't present in ppc_thread_state, but 109 * are represented in separate structures that still define a thread's 110 * context. */ 111 MDFloatingSaveAreaPPC float_save; 112 MDVectorSaveAreaPPC vector_save; 113 } MDRawContextPPC64; /* Based on ppc_thread_state */ 114 115 /* For (MDRawContextPPC).context_flags. These values indicate the type of 116 * context stored in the structure. MD_CONTEXT_PPC is Breakpad-defined. Its 117 * value was chosen to avoid likely conflicts with MD_CONTEXT_* for other 118 * CPUs. */ 119 #define MD_CONTEXT_PPC64 0x01000000 120 #define MD_CONTEXT_PPC64_BASE (MD_CONTEXT_PPC64 | 0x00000001) 121 #define MD_CONTEXT_PPC64_FLOATING_POINT (MD_CONTEXT_PPC64 | 0x00000008) 122 #define MD_CONTEXT_PPC64_VECTOR (MD_CONTEXT_PPC64 | 0x00000020) 123 124 #define MD_CONTEXT_PPC64_FULL MD_CONTEXT_PPC64_BASE 125 #define MD_CONTEXT_PPC64_ALL (MD_CONTEXT_PPC64_FULL | \ 126 MD_CONTEXT_PPC64_FLOATING_POINT | \ 127 MD_CONTEXT_PPC64_VECTOR) 128 129 #endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC64_H__ */ 130