1 /* Copyright 2013 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 ARM. 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 41 * ensuring that all members are aligned on their natural boundaries. 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 * Because precise data type sizes are crucial for this implementation to 56 * function properly and portably, a set of primitive types with known sizes 57 * are used as the basis of each structure defined by this file. 58 * 59 * Author: Colin Blundell 60 */ 61 62 /* 63 * ARM64 support 64 */ 65 66 #ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ 67 #define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ 68 69 #include "google_breakpad/common/breakpad_types.h" 70 71 #define MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT 32 72 #define MD_CONTEXT_ARM64_GPR_COUNT 33 73 74 typedef struct { 75 /* 32 128-bit floating point registers, d0 .. d31. */ 76 uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT]; 77 78 uint32_t fpcr; /* FPU control register */ 79 uint32_t fpsr; /* FPU status register */ 80 } MDFloatingSaveAreaARM64; 81 82 /* For (MDRawContextARM64).context_flags. These values indicate the type of 83 * context stored in the structure. */ 84 #define MD_CONTEXT_ARM64 0x00400000 85 #define MD_CONTEXT_ARM64_CONTROL (MD_CONTEXT_ARM64 | 0x00000001) 86 #define MD_CONTEXT_ARM64_INTEGER (MD_CONTEXT_ARM64 | 0x00000002) 87 #define MD_CONTEXT_ARM64_FLOATING_POINT (MD_CONTEXT_ARM64 | 0x00000004) 88 #define MD_CONTEXT_ARM64_DEBUG (MD_CONTEXT_ARM64 | 0x00000008) 89 #define MD_CONTEXT_ARM64_FULL (MD_CONTEXT_ARM64_CONTROL | \ 90 MD_CONTEXT_ARM64_INTEGER | \ 91 MD_CONTEXT_ARM64_FLOATING_POINT) 92 #define MD_CONTEXT_ARM64_ALL (MD_CONTEXT_ARM64_FULL | MD_CONTEXT_ARM64_DEBUG) 93 94 typedef struct { 95 /* Determines which fields of this struct are populated */ 96 uint32_t context_flags; 97 98 /* CPSR (flags, basically): 32 bits: 99 bit 31 - N (negative) 100 bit 30 - Z (zero) 101 bit 29 - C (carry) 102 bit 28 - V (overflow) 103 bit 27 - Q (saturation flag, sticky) 104 All other fields -- ignore */ 105 uint32_t cpsr; 106 107 /* 33 64-bit integer registers, x0 .. x31 + the PC 108 * Note the following fixed uses: 109 * x29 is the frame pointer 110 * x30 is the link register 111 * x31 is the stack pointer 112 * The PC is effectively x32. 113 */ 114 uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT]; 115 116 /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */ 117 MDFloatingSaveAreaARM64 float_save; 118 119 uint32_t bcr[8]; 120 uint64_t bvr[8]; 121 uint32_t wcr[2]; 122 uint64_t wvr[2]; 123 } MDRawContextARM64; 124 125 typedef struct { 126 uint32_t fpsr; /* FPU status register */ 127 uint32_t fpcr; /* FPU control register */ 128 129 /* 32 128-bit floating point registers, d0 .. d31. */ 130 uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT]; 131 } MDFloatingSaveAreaARM64_Old; 132 133 /* Use the same 32-bit alignment when accessing this structure from 64-bit code 134 * as is used natively in 32-bit code. */ 135 #pragma pack(push, 4) 136 137 typedef struct { 138 /* The next field determines the layout of the structure, and which parts 139 * of it are populated 140 */ 141 uint64_t context_flags; 142 143 /* 33 64-bit integer registers, x0 .. x31 + the PC 144 * Note the following fixed uses: 145 * x29 is the frame pointer 146 * x30 is the link register 147 * x31 is the stack pointer 148 * The PC is effectively x32. 149 */ 150 uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT]; 151 152 /* CPSR (flags, basically): 32 bits: 153 bit 31 - N (negative) 154 bit 30 - Z (zero) 155 bit 29 - C (carry) 156 bit 28 - V (overflow) 157 bit 27 - Q (saturation flag, sticky) 158 All other fields -- ignore */ 159 uint32_t cpsr; 160 161 /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */ 162 MDFloatingSaveAreaARM64_Old float_save; 163 164 } MDRawContextARM64_Old; 165 166 #pragma pack(pop) 167 168 /* Indices into iregs for registers with a dedicated or conventional 169 * purpose. 170 */ 171 enum MDARM64RegisterNumbers { 172 MD_CONTEXT_ARM64_REG_FP = 29, 173 MD_CONTEXT_ARM64_REG_LR = 30, 174 MD_CONTEXT_ARM64_REG_SP = 31, 175 MD_CONTEXT_ARM64_REG_PC = 32 176 }; 177 178 /* For (MDRawContextARM64_Old).context_flags. These values indicate the type of 179 * context stored in the structure. MD_CONTEXT_ARM64_OLD is Breakpad-defined. 180 * This value was chosen to avoid likely conflicts with MD_CONTEXT_* 181 * for other CPUs. */ 182 #define MD_CONTEXT_ARM64_OLD 0x80000000 183 #define MD_CONTEXT_ARM64_INTEGER_OLD (MD_CONTEXT_ARM64_OLD | 0x00000002) 184 #define MD_CONTEXT_ARM64_FLOATING_POINT_OLD (MD_CONTEXT_ARM64_OLD | 0x00000004) 185 186 #define MD_CONTEXT_ARM64_FULL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \ 187 MD_CONTEXT_ARM64_FLOATING_POINT_OLD) 188 189 #define MD_CONTEXT_ARM64_ALL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \ 190 MD_CONTEXT_ARM64_FLOATING_POINT_OLD) 191 192 #endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */ 193