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 #define MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT 32 70 71 typedef struct { 72 uint32_t fpsr; /* FPU status register */ 73 uint32_t fpcr; /* FPU control register */ 74 75 /* 32 128-bit floating point registers, d0 .. d31. */ 76 uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT]; 77 } MDFloatingSaveAreaARM64; 78 79 #define MD_CONTEXT_ARM64_GPR_COUNT 33 80 81 /* Use the same 32-bit alignment when accessing this structure from 64-bit code 82 * as is used natively in 32-bit code. */ 83 #pragma pack(push, 4) 84 85 typedef struct { 86 /* The next field determines the layout of the structure, and which parts 87 * of it are populated 88 */ 89 uint64_t context_flags; 90 91 /* 33 64-bit integer registers, x0 .. x31 + the PC 92 * Note the following fixed uses: 93 * x29 is the frame pointer 94 * x30 is the link register 95 * x31 is the stack pointer 96 * The PC is effectively x32. 97 */ 98 uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT]; 99 100 /* CPSR (flags, basically): 32 bits: 101 bit 31 - N (negative) 102 bit 30 - Z (zero) 103 bit 29 - C (carry) 104 bit 28 - V (overflow) 105 bit 27 - Q (saturation flag, sticky) 106 All other fields -- ignore */ 107 uint32_t cpsr; 108 109 /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */ 110 MDFloatingSaveAreaARM64 float_save; 111 112 } MDRawContextARM64; 113 114 #pragma pack(pop) 115 116 /* Indices into iregs for registers with a dedicated or conventional 117 * purpose. 118 */ 119 enum MDARM64RegisterNumbers { 120 MD_CONTEXT_ARM64_REG_FP = 29, 121 MD_CONTEXT_ARM64_REG_LR = 30, 122 MD_CONTEXT_ARM64_REG_SP = 31, 123 MD_CONTEXT_ARM64_REG_PC = 32 124 }; 125 126 /* For (MDRawContextARM64).context_flags. These values indicate the type of 127 * context stored in the structure. MD_CONTEXT_ARM64 is Breakpad-defined. 128 * This value was chosen to avoid likely conflicts with MD_CONTEXT_* 129 * for other CPUs. */ 130 #define MD_CONTEXT_ARM64 0x80000000 131 #define MD_CONTEXT_ARM64_INTEGER (MD_CONTEXT_ARM64 | 0x00000002) 132 #define MD_CONTEXT_ARM64_FLOATING_POINT (MD_CONTEXT_ARM64 | 0x00000004) 133 134 #define MD_CONTEXT_ARM64_FULL (MD_CONTEXT_ARM64_INTEGER | \ 135 MD_CONTEXT_ARM64_FLOATING_POINT) 136 137 #define MD_CONTEXT_ARM64_ALL (MD_CONTEXT_ARM64_INTEGER | \ 138 MD_CONTEXT_ARM64_FLOATING_POINT) 139 140 #endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */ 141