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/* Copyright 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 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: Colin Blundell
*/
/*
* ARM64 support
*/
#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__
#include "google_breakpad/common/breakpad_types.h"
#define MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT 32
#define MD_CONTEXT_ARM64_GPR_COUNT 33
typedef struct {
/* 32 128-bit floating point registers, d0 .. d31. */
uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT];
uint32_t fpcr; /* FPU control register */
uint32_t fpsr; /* FPU status register */
} MDFloatingSaveAreaARM64;
/* For (MDRawContextARM64).context_flags. These values indicate the type of
* context stored in the structure. */
#define MD_CONTEXT_ARM64 0x00400000
#define MD_CONTEXT_ARM64_CONTROL (MD_CONTEXT_ARM64 | 0x00000001)
#define MD_CONTEXT_ARM64_INTEGER (MD_CONTEXT_ARM64 | 0x00000002)
#define MD_CONTEXT_ARM64_FLOATING_POINT (MD_CONTEXT_ARM64 | 0x00000004)
#define MD_CONTEXT_ARM64_DEBUG (MD_CONTEXT_ARM64 | 0x00000008)
#define MD_CONTEXT_ARM64_FULL (MD_CONTEXT_ARM64_CONTROL | \
MD_CONTEXT_ARM64_INTEGER | \
MD_CONTEXT_ARM64_FLOATING_POINT)
#define MD_CONTEXT_ARM64_ALL (MD_CONTEXT_ARM64_FULL | MD_CONTEXT_ARM64_DEBUG)
typedef struct {
/* Determines which fields of this struct are populated */
uint32_t context_flags;
/* 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 */
uint32_t cpsr;
/* 33 64-bit integer registers, x0 .. x31 + the PC
* Note the following fixed uses:
* x29 is the frame pointer
* x30 is the link register
* x31 is the stack pointer
* The PC is effectively x32.
*/
uint64_t iregs[MD_CONTEXT_ARM64_GPR_COUNT];
/* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */
MDFloatingSaveAreaARM64 float_save;
uint32_t bcr[8];
uint64_t bvr[8];
uint32_t wcr[2];
uint64_t wvr[2];
} MDRawContextARM64;
typedef struct {
uint32_t fpsr; /* FPU status register */
uint32_t fpcr; /* FPU control register */
/* 32 128-bit floating point registers, d0 .. d31. */
uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT];
} MDFloatingSaveAreaARM64_Old;
/* Use the same 32-bit alignment when accessing this structure from 64-bit code
* as is used natively in 32-bit code. */
#pragma pack(push, 4)
typedef struct {
/* The next field determines the layout of the structure, and which parts
* of it are populated
*/
uint64_t context_flags;
/* 33 64-bit integer registers, x0 .. x31 + the PC
* Note the following fixed uses:
* x29 is the frame pointer
* x30 is the link register
* x31 is the stack pointer
* The PC is effectively x32.
*/
uint64_t iregs[MD_CONTEXT_ARM64_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 */
uint32_t cpsr;
/* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */
MDFloatingSaveAreaARM64_Old float_save;
} MDRawContextARM64_Old;
#pragma pack(pop)
/* Indices into iregs for registers with a dedicated or conventional
* purpose.
*/
enum MDARM64RegisterNumbers {
MD_CONTEXT_ARM64_REG_FP = 29,
MD_CONTEXT_ARM64_REG_LR = 30,
MD_CONTEXT_ARM64_REG_SP = 31,
MD_CONTEXT_ARM64_REG_PC = 32
};
/* For (MDRawContextARM64_Old).context_flags. These values indicate the type of
* context stored in the structure. MD_CONTEXT_ARM64_OLD is Breakpad-defined.
* This value was chosen to avoid likely conflicts with MD_CONTEXT_*
* for other CPUs. */
#define MD_CONTEXT_ARM64_OLD 0x80000000
#define MD_CONTEXT_ARM64_INTEGER_OLD (MD_CONTEXT_ARM64_OLD | 0x00000002)
#define MD_CONTEXT_ARM64_FLOATING_POINT_OLD (MD_CONTEXT_ARM64_OLD | 0x00000004)
#define MD_CONTEXT_ARM64_FULL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \
MD_CONTEXT_ARM64_FLOATING_POINT_OLD)
#define MD_CONTEXT_ARM64_ALL_OLD (MD_CONTEXT_ARM64_INTEGER_OLD | \
MD_CONTEXT_ARM64_FLOATING_POINT_OLD)
#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */
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