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/* Copyright (c) 2013, 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 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__
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