1 /* Copyright 2013 Google LLC 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following disclaimer 11 * in the documentation and/or other materials provided with the 12 * distribution. 13 * * Neither the name of Google LLC nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 28 29 /* minidump_format.h: A cross-platform reimplementation of minidump-related 30 * portions of DbgHelp.h from the Windows Platform SDK. 31 * 32 * (This is C99 source, please don't corrupt it with C++.) 33 * 34 * This file contains the necessary definitions to read minidump files 35 * produced on ARM. These files may be read on any platform provided 36 * that the alignments of these structures on the processing system are 37 * identical to the alignments of these structures on the producing system. 38 * For this reason, precise-sized types are used. The structures defined 39 * by this file have been laid out to minimize alignment problems by 40 * ensuring that all members are aligned on their natural boundaries. 41 * In some cases, tail-padding may be significant when different ABIs specify 42 * different tail-padding behaviors. To avoid problems when reading or 43 * writing affected structures, MD_*_SIZE macros are provided where needed, 44 * containing the useful size of the structures without padding. 45 * 46 * Structures that are defined by Microsoft to contain a zero-length array 47 * are instead defined here to contain an array with one element, as 48 * zero-length arrays are forbidden by standard C and C++. In these cases, 49 * *_minsize constants are provided to be used in place of sizeof. For a 50 * cleaner interface to these sizes when using C++, see minidump_size.h. 51 * 52 * These structures are also sufficient to populate minidump files. 53 * 54 * Because precise data type sizes are crucial for this implementation to 55 * function properly and portably, a set of primitive types with known sizes 56 * are used as the basis of each structure defined by this file. 57 * 58 * Author: Colin Blundell 59 */ 60 61 /* 62 * ARM64 support 63 */ 64 65 #ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ 66 #define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ 67 68 #include "google_breakpad/common/breakpad_types.h" 69 70 #define MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT 32 71 #define MD_CONTEXT_ARM64_GPR_COUNT 33 72 73 typedef struct { 74 /* 32 128-bit floating point registers, d0 .. d31. */ 75 uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT]; 76 77 uint32_t fpcr; /* FPU control register */ 78 uint32_t fpsr; /* FPU status register */ 79 } MDFloatingSaveAreaARM64; 80 81 /* For (MDRawContextARM64).context_flags. These values indicate the type of 82 * context stored in the structure. */ 83 #define MD_CONTEXT_ARM64 0x00400000 84 #define MD_CONTEXT_ARM64_CONTROL (MD_CONTEXT_ARM64 | 0x00000001) 85 #define MD_CONTEXT_ARM64_INTEGER (MD_CONTEXT_ARM64 | 0x00000002) 86 #define MD_CONTEXT_ARM64_FLOATING_POINT (MD_CONTEXT_ARM64 | 0x00000004) 87 #define MD_CONTEXT_ARM64_DEBUG (MD_CONTEXT_ARM64 | 0x00000008) 88 #define MD_CONTEXT_ARM64_FULL (MD_CONTEXT_ARM64_CONTROL | \ 89 MD_CONTEXT_ARM64_INTEGER | \ 90 MD_CONTEXT_ARM64_FLOATING_POINT) 91 #define MD_CONTEXT_ARM64_ALL (MD_CONTEXT_ARM64_FULL | MD_CONTEXT_ARM64_DEBUG) 92 93 typedef struct { 94 /* Determines which fields of this struct are populated */ 95 uint32_t context_flags; 96 97 /* CPSR (flags, basically): 32 bits: 98 bit 31 - N (negative) 99 bit 30 - Z (zero) 100 bit 29 - C (carry) 101 bit 28 - V (overflow) 102 bit 27 - Q (saturation flag, sticky) 103 All other fields -- ignore */ 104 uint32_t cpsr; 105 106 /* 33 64-bit integer registers, x0 .. x31 + the PC 107 * Note the following fixed uses: 108 * x29 is the frame pointer 109 * x30 is the link register 110 * x31 is the stack pointer 111 * The PC is effectively x32. 112 */ 113 uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT]; 114 115 /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */ 116 MDFloatingSaveAreaARM64 float_save; 117 118 uint32_t bcr[8]; 119 uint64_t bvr[8]; 120 uint32_t wcr[2]; 121 uint64_t wvr[2]; 122 } MDRawContextARM64; 123 124 typedef struct { 125 uint32_t fpsr; /* FPU status register */ 126 uint32_t fpcr; /* FPU control register */ 127 128 /* 32 128-bit floating point registers, d0 .. d31. */ 129 uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT]; 130 } MDFloatingSaveAreaARM64_Old; 131 132 /* Use the same 32-bit alignment when accessing this structure from 64-bit code 133 * as is used natively in 32-bit code. */ 134 #pragma pack(push, 4) 135 136 typedef struct { 137 /* The next field determines the layout of the structure, and which parts 138 * of it are populated 139 */ 140 uint64_t context_flags; 141 142 /* 33 64-bit integer registers, x0 .. x31 + the PC 143 * Note the following fixed uses: 144 * x29 is the frame pointer 145 * x30 is the link register 146 * x31 is the stack pointer 147 * The PC is effectively x32. 148 */ 149 uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT]; 150 151 /* CPSR (flags, basically): 32 bits: 152 bit 31 - N (negative) 153 bit 30 - Z (zero) 154 bit 29 - C (carry) 155 bit 28 - V (overflow) 156 bit 27 - Q (saturation flag, sticky) 157 All other fields -- ignore */ 158 uint32_t cpsr; 159 160 /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */ 161 MDFloatingSaveAreaARM64_Old float_save; 162 163 } MDRawContextARM64_Old; 164 165 #pragma pack(pop) 166 167 /* Indices into iregs for registers with a dedicated or conventional 168 * purpose. 169 */ 170 enum MDARM64RegisterNumbers { 171 MD_CONTEXT_ARM64_REG_FP = 29, 172 MD_CONTEXT_ARM64_REG_LR = 30, 173 MD_CONTEXT_ARM64_REG_SP = 31, 174 MD_CONTEXT_ARM64_REG_PC = 32 175 }; 176 177 /* For (MDRawContextARM64_Old).context_flags. These values indicate the type of 178 * context stored in the structure. MD_CONTEXT_ARM64_OLD is Breakpad-defined. 179 * This value was chosen to avoid likely conflicts with MD_CONTEXT_* 180 * for other CPUs. */ 181 #define MD_CONTEXT_ARM64_OLD 0x80000000 182 #define MD_CONTEXT_ARM64_INTEGER_OLD (MD_CONTEXT_ARM64_OLD | 0x00000002) 183 #define MD_CONTEXT_ARM64_FLOATING_POINT_OLD (MD_CONTEXT_ARM64_OLD | 0x00000004) 184 185 #define MD_CONTEXT_ARM64_FULL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \ 186 MD_CONTEXT_ARM64_FLOATING_POINT_OLD) 187 188 #define MD_CONTEXT_ARM64_ALL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \ 189 MD_CONTEXT_ARM64_FLOATING_POINT_OLD) 190 191 #endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */ 192