173 lines
7.8 KiB
C
173 lines
7.8 KiB
C
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/* Copyright (c) 2006, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* minidump_format.h: A cross-platform reimplementation of minidump-related
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* portions of DbgHelp.h from the Windows Platform SDK.
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*
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* (This is C99 source, please don't corrupt it with C++.)
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*
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* This file contains the necessary definitions to read minidump files
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* produced on x86. These files may be read on any platform provided
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* that the alignments of these structures on the processing system are
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* identical to the alignments of these structures on the producing system.
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* For this reason, precise-sized types are used. The structures defined
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* by this file have been laid out to minimize alignment problems by ensuring
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* ensuring that all members are aligned on their natural boundaries. In
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* In some cases, tail-padding may be significant when different ABIs specify
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* different tail-padding behaviors. To avoid problems when reading or
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* writing affected structures, MD_*_SIZE macros are provided where needed,
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* containing the useful size of the structures without padding.
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*
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* Structures that are defined by Microsoft to contain a zero-length array
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* are instead defined here to contain an array with one element, as
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* zero-length arrays are forbidden by standard C and C++. In these cases,
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* *_minsize constants are provided to be used in place of sizeof. For a
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* cleaner interface to these sizes when using C++, see minidump_size.h.
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*
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* These structures are also sufficient to populate minidump files.
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*
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* These definitions may be extended to support handling minidump files
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* for other CPUs and other operating systems.
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*
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* Because precise data type sizes are crucial for this implementation to
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* function properly and portably in terms of interoperability with minidumps
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* produced by DbgHelp on Windows, a set of primitive types with known sizes
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* are used as the basis of each structure defined by this file. DbgHelp
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* on Windows is assumed to be the reference implementation; this file
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* seeks to provide a cross-platform compatible implementation. To avoid
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* collisions with the types and values defined and used by DbgHelp in the
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* event that this implementation is used on Windows, each type and value
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* defined here is given a new name, beginning with "MD". Names of the
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* equivalent types and values in the Windows Platform SDK are given in
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* comments.
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*
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* Author: Mark Mentovai */
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#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__
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#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__
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#define MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE 80
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/* SIZE_OF_80387_REGISTERS */
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typedef struct {
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u_int32_t control_word;
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u_int32_t status_word;
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u_int32_t tag_word;
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u_int32_t error_offset;
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u_int32_t error_selector;
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u_int32_t data_offset;
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u_int32_t data_selector;
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/* register_area contains eight 80-bit (x87 "long double") quantities for
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* floating-point registers %st0 (%mm0) through %st7 (%mm7). */
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u_int8_t register_area[MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE];
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u_int32_t cr0_npx_state;
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} MDFloatingSaveAreaX86; /* FLOATING_SAVE_AREA */
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#define MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE 512
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/* MAXIMUM_SUPPORTED_EXTENSION */
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typedef struct {
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/* The next field determines the layout of the structure, and which parts
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* of it are populated */
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u_int32_t context_flags;
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/* The next 6 registers are included with MD_CONTEXT_X86_DEBUG_REGISTERS */
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u_int32_t dr0;
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u_int32_t dr1;
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u_int32_t dr2;
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u_int32_t dr3;
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u_int32_t dr6;
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u_int32_t dr7;
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/* The next field is included with MD_CONTEXT_X86_FLOATING_POINT */
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MDFloatingSaveAreaX86 float_save;
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/* The next 4 registers are included with MD_CONTEXT_X86_SEGMENTS */
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u_int32_t gs;
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u_int32_t fs;
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u_int32_t es;
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u_int32_t ds;
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/* The next 6 registers are included with MD_CONTEXT_X86_INTEGER */
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u_int32_t edi;
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u_int32_t esi;
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u_int32_t ebx;
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u_int32_t edx;
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u_int32_t ecx;
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u_int32_t eax;
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/* The next 6 registers are included with MD_CONTEXT_X86_CONTROL */
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u_int32_t ebp;
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u_int32_t eip;
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u_int32_t cs; /* WinNT.h says "must be sanitized" */
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u_int32_t eflags; /* WinNT.h says "must be sanitized" */
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u_int32_t esp;
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u_int32_t ss;
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/* The next field is included with MD_CONTEXT_X86_EXTENDED_REGISTERS.
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* It contains vector (MMX/SSE) registers. It it laid out in the
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* format used by the fxsave and fsrstor instructions, so it includes
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* a copy of the x87 floating-point registers as well. See FXSAVE in
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* "Intel Architecture Software Developer's Manual, Volume 2." */
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u_int8_t extended_registers[
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MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE];
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} MDRawContextX86; /* CONTEXT */
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/* For (MDRawContextX86).context_flags. These values indicate the type of
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* context stored in the structure. The high 26 bits identify the CPU, the
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* low 6 bits identify the type of context saved. */
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#define MD_CONTEXT_X86 0x00010000
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/* CONTEXT_i386, CONTEXT_i486: identifies CPU */
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#define MD_CONTEXT_X86_CONTROL (MD_CONTEXT_X86 | 0x00000001)
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/* CONTEXT_CONTROL */
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#define MD_CONTEXT_X86_INTEGER (MD_CONTEXT_X86 | 0x00000002)
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/* CONTEXT_INTEGER */
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#define MD_CONTEXT_X86_SEGMENTS (MD_CONTEXT_X86 | 0x00000004)
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/* CONTEXT_SEGMENTS */
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#define MD_CONTEXT_X86_FLOATING_POINT (MD_CONTEXT_X86 | 0x00000008)
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/* CONTEXT_FLOATING_POINT */
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#define MD_CONTEXT_X86_DEBUG_REGISTERS (MD_CONTEXT_X86 | 0x00000010)
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/* CONTEXT_DEBUG_REGISTERS */
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#define MD_CONTEXT_X86_EXTENDED_REGISTERS (MD_CONTEXT_X86 | 0x00000020)
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/* CONTEXT_EXTENDED_REGISTERS */
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#define MD_CONTEXT_X86_FULL (MD_CONTEXT_X86_CONTROL | \
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MD_CONTEXT_X86_INTEGER | \
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MD_CONTEXT_X86_SEGMENTS)
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/* CONTEXT_FULL */
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#define MD_CONTEXT_X86_ALL (MD_CONTEXT_X86_FULL | \
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MD_CONTEXT_X86_FLOATING_POINT | \
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MD_CONTEXT_X86_DEBUG_REGISTERS | \
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MD_CONTEXT_X86_EXTENDED_REGISTERS)
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/* CONTEXT_ALL */
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#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__ */
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