| /* Header file for the format of Windows minidumps. |
| Copyright (C) 2020 Free Software Foundation, Inc. |
| Written by Google LLC. |
| Relicensed with permission, original at: |
| https://source.chromium.org/chromium/chromium/src/+/master:third_party/breakpad/breakpad/src/google_breakpad/common |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| /* 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 MIPS. 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: Chris Dearman |
| */ |
| |
| /* |
| * MIPS support |
| */ |
| |
| #ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__ |
| #define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__ |
| |
| #define MD_CONTEXT_MIPS_GPR_COUNT 32 |
| #define MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT 32 |
| #define MD_CONTEXT_MIPS_DSP_COUNT 3 |
| |
| /* |
| * 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 { |
| /* 32 64-bit floating point registers, f0..f31 */ |
| uint64_t regs[MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT]; |
| |
| uint32_t fpcsr; /* FPU status register. */ |
| uint32_t fir; /* FPU implementation register. */ |
| } MDFloatingSaveAreaMIPS; |
| |
| typedef struct { |
| /* The next field determines the layout of the structure, and which parts |
| * of it are populated. |
| */ |
| uint32_t context_flags; |
| uint32_t _pad0; |
| |
| /* 32 64-bit integer registers, r0..r31. |
| * Note the following fixed uses: |
| * r29 is the stack pointer. |
| * r31 is the return address. |
| */ |
| uint64_t iregs[MD_CONTEXT_MIPS_GPR_COUNT]; |
| |
| /* multiply/divide result. */ |
| uint64_t mdhi, mdlo; |
| |
| /* DSP accumulators. */ |
| uint32_t hi[MD_CONTEXT_MIPS_DSP_COUNT]; |
| uint32_t lo[MD_CONTEXT_MIPS_DSP_COUNT]; |
| uint32_t dsp_control; |
| uint32_t _pad1; |
| |
| uint64_t epc; |
| uint64_t badvaddr; |
| uint32_t status; |
| uint32_t cause; |
| |
| /* The next field is included with MD_CONTEXT_MIPS_FLOATING_POINT. */ |
| MDFloatingSaveAreaMIPS float_save; |
| |
| } MDRawContextMIPS; |
| |
| /* Indices into iregs for registers with a dedicated or conventional |
| * purpose. |
| */ |
| enum MDMIPSRegisterNumbers { |
| MD_CONTEXT_MIPS_REG_S0 = 16, |
| MD_CONTEXT_MIPS_REG_S1 = 17, |
| MD_CONTEXT_MIPS_REG_S2 = 18, |
| MD_CONTEXT_MIPS_REG_S3 = 19, |
| MD_CONTEXT_MIPS_REG_S4 = 20, |
| MD_CONTEXT_MIPS_REG_S5 = 21, |
| MD_CONTEXT_MIPS_REG_S6 = 22, |
| MD_CONTEXT_MIPS_REG_S7 = 23, |
| MD_CONTEXT_MIPS_REG_GP = 28, |
| MD_CONTEXT_MIPS_REG_SP = 29, |
| MD_CONTEXT_MIPS_REG_FP = 30, |
| MD_CONTEXT_MIPS_REG_RA = 31, |
| }; |
| |
| /* For (MDRawContextMIPS).context_flags. These values indicate the type of |
| * context stored in the structure. */ |
| /* CONTEXT_MIPS 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 MIPS CPUs. |
| */ |
| #define MD_CONTEXT_MIPS 0x00040000 |
| #define MD_CONTEXT_MIPS_INTEGER (MD_CONTEXT_MIPS | 0x00000002) |
| #define MD_CONTEXT_MIPS_FLOATING_POINT (MD_CONTEXT_MIPS | 0x00000004) |
| #define MD_CONTEXT_MIPS_DSP (MD_CONTEXT_MIPS | 0x00000008) |
| |
| #define MD_CONTEXT_MIPS_FULL (MD_CONTEXT_MIPS_INTEGER | \ |
| MD_CONTEXT_MIPS_FLOATING_POINT | \ |
| MD_CONTEXT_MIPS_DSP) |
| |
| #define MD_CONTEXT_MIPS_ALL (MD_CONTEXT_MIPS_INTEGER | \ |
| MD_CONTEXT_MIPS_FLOATING_POINT \ |
| MD_CONTEXT_MIPS_DSP) |
| |
| /** |
| * Breakpad defines for MIPS64 |
| */ |
| #define MD_CONTEXT_MIPS64 0x00080000 |
| #define MD_CONTEXT_MIPS64_INTEGER (MD_CONTEXT_MIPS64 | 0x00000002) |
| #define MD_CONTEXT_MIPS64_FLOATING_POINT (MD_CONTEXT_MIPS64 | 0x00000004) |
| #define MD_CONTEXT_MIPS64_DSP (MD_CONTEXT_MIPS64 | 0x00000008) |
| |
| #define MD_CONTEXT_MIPS64_FULL (MD_CONTEXT_MIPS64_INTEGER | \ |
| MD_CONTEXT_MIPS64_FLOATING_POINT | \ |
| MD_CONTEXT_MIPS64_DSP) |
| |
| #define MD_CONTEXT_MIPS64_ALL (MD_CONTEXT_MIPS64_INTEGER | \ |
| MD_CONTEXT_MIPS64_FLOATING_POINT \ |
| MD_CONTEXT_MIPS64_DSP) |
| |
| #endif // GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__ |
