/* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* minidump_format.h: A cross-platform reimplementation of minidump-related * portions of DbgHelp.h from the Windows Platform SDK. * * (This is C99 source, please don't corrupt it with C++.) * * This file contains the necessary definitions to read minidump files * produced on ARM. These files may be read on any platform provided * that the alignments of these structures on the processing system are * identical to the alignments of these structures on the producing system. * For this reason, precise-sized types are used. The structures defined * by this file have been laid out to minimize alignment problems by * ensuring that all members are aligned on their natural boundaries. * In some cases, tail-padding may be significant when different ABIs specify * different tail-padding behaviors. To avoid problems when reading or * writing affected structures, MD_*_SIZE macros are provided where needed, * containing the useful size of the structures without padding. * * Structures that are defined by Microsoft to contain a zero-length array * are instead defined here to contain an array with one element, as * zero-length arrays are forbidden by standard C and C++. In these cases, * *_minsize constants are provided to be used in place of sizeof. For a * cleaner interface to these sizes when using C++, see minidump_size.h. * * These structures are also sufficient to populate minidump files. * * Because precise data type sizes are crucial for this implementation to * function properly and portably, a set of primitive types with known sizes * are used as the basis of each structure defined by this file. * * Author: Julian Seward */ /* * ARM support */ #ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__ #define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__ #define MD_FLOATINGSAVEAREA_ARM_FPR_COUNT 32 #define MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT 8 /* * Note that these structures *do not* map directly to the CONTEXT * structure defined in WinNT.h in the Windows Mobile SDK. That structure * does not accomodate VFPv3, and I'm unsure if it was ever used in the * wild anyway, as Windows CE only seems to produce "cedumps" which * are not exactly minidumps. */ typedef struct { u_int64_t fpscr; /* FPU status register */ /* 32 64-bit floating point registers, d0 .. d31. */ u_int64_t regs[MD_FLOATINGSAVEAREA_ARM_FPR_COUNT]; /* Miscellaneous control words */ u_int32_t extra[MD_FLOATINGSAVEAREA_ARM_FPEXTRA_COUNT]; } MDFloatingSaveAreaARM; #define MD_CONTEXT_ARM_GPR_COUNT 16 typedef struct { /* The next field determines the layout of the structure, and which parts * of it are populated */ u_int32_t context_flags; /* 16 32-bit integer registers, r0 .. r15 * Note the following fixed uses: * r13 is the stack pointer * r14 is the link register * r15 is the program counter */ u_int32_t iregs[MD_CONTEXT_ARM_GPR_COUNT]; /* CPSR (flags, basically): 32 bits: bit 31 - N (negative) bit 30 - Z (zero) bit 29 - C (carry) bit 28 - V (overflow) bit 27 - Q (saturation flag, sticky) All other fields -- ignore */ u_int32_t cpsr; /* The next field is included with MD_CONTEXT_ARM_FLOATING_POINT */ MDFloatingSaveAreaARM float_save; } MDRawContextARM; /* Indices into iregs for registers with a dedicated or conventional * purpose. */ enum MDARMRegisterNumbers { MD_CONTEXT_ARM_REG_IOS_FP = 7, MD_CONTEXT_ARM_REG_FP = 11, MD_CONTEXT_ARM_REG_SP = 13, MD_CONTEXT_ARM_REG_LR = 14, MD_CONTEXT_ARM_REG_PC = 15 }; /* For (MDRawContextARM).context_flags. These values indicate the type of * context stored in the structure. */ /* CONTEXT_ARM from the Windows CE 5.0 SDK. This value isn't correct * because this bit can be used for flags. Presumably this value was * never actually used in minidumps, but only in "CEDumps" which * are a whole parallel minidump file format for Windows CE. * Therefore, Breakpad defines its own value for ARM CPUs. */ #define MD_CONTEXT_ARM_OLD 0x00000040 /* This value was chosen to avoid likely conflicts with MD_CONTEXT_* * for other CPUs. */ #define MD_CONTEXT_ARM 0x40000000 #define MD_CONTEXT_ARM_INTEGER (MD_CONTEXT_ARM | 0x00000002) #define MD_CONTEXT_ARM_FLOATING_POINT (MD_CONTEXT_ARM | 0x00000004) #define MD_CONTEXT_ARM_FULL (MD_CONTEXT_ARM_INTEGER | \ MD_CONTEXT_ARM_FLOATING_POINT) #define MD_CONTEXT_ARM_ALL (MD_CONTEXT_ARM_INTEGER | \ MD_CONTEXT_ARM_FLOATING_POINT) #endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM_H__ */