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+/* Copyright (c) 2006, 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 x86. 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
+ * ensuring that all members are aligned on their natural boundaries. In
+ * 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.
+ *
+ * These definitions may be extended to support handling minidump files
+ * for other CPUs and other operating systems.
+ *
+ * Because precise data type sizes are crucial for this implementation to
+ * function properly and portably in terms of interoperability with minidumps
+ * produced by DbgHelp on Windows, a set of primitive types with known sizes
+ * are used as the basis of each structure defined by this file. DbgHelp
+ * on Windows is assumed to be the reference implementation; this file
+ * seeks to provide a cross-platform compatible implementation. To avoid
+ * collisions with the types and values defined and used by DbgHelp in the
+ * event that this implementation is used on Windows, each type and value
+ * defined here is given a new name, beginning with "MD". Names of the
+ * equivalent types and values in the Windows Platform SDK are given in
+ * comments.
+ *
+ * Author: Mark Mentovai */
+
+#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__
+#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__
+
+#define MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE 80
+ /* SIZE_OF_80387_REGISTERS */
+
+typedef struct {
+ u_int32_t control_word;
+ u_int32_t status_word;
+ u_int32_t tag_word;
+ u_int32_t error_offset;
+ u_int32_t error_selector;
+ u_int32_t data_offset;
+ u_int32_t data_selector;
+
+ /* register_area contains eight 80-bit (x87 "long double") quantities for
+ * floating-point registers %st0 (%mm0) through %st7 (%mm7). */
+ u_int8_t register_area[MD_FLOATINGSAVEAREA_X86_REGISTERAREA_SIZE];
+ u_int32_t cr0_npx_state;
+} MDFloatingSaveAreaX86; /* FLOATING_SAVE_AREA */
+
+
+#define MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE 512
+ /* MAXIMUM_SUPPORTED_EXTENSION */
+
+typedef struct {
+ /* The next field determines the layout of the structure, and which parts
+ * of it are populated */
+ u_int32_t context_flags;
+
+ /* The next 6 registers are included with MD_CONTEXT_X86_DEBUG_REGISTERS */
+ u_int32_t dr0;
+ u_int32_t dr1;
+ u_int32_t dr2;
+ u_int32_t dr3;
+ u_int32_t dr6;
+ u_int32_t dr7;
+
+ /* The next field is included with MD_CONTEXT_X86_FLOATING_POINT */
+ MDFloatingSaveAreaX86 float_save;
+
+ /* The next 4 registers are included with MD_CONTEXT_X86_SEGMENTS */
+ u_int32_t gs;
+ u_int32_t fs;
+ u_int32_t es;
+ u_int32_t ds;
+ /* The next 6 registers are included with MD_CONTEXT_X86_INTEGER */
+ u_int32_t edi;
+ u_int32_t esi;
+ u_int32_t ebx;
+ u_int32_t edx;
+ u_int32_t ecx;
+ u_int32_t eax;
+
+ /* The next 6 registers are included with MD_CONTEXT_X86_CONTROL */
+ u_int32_t ebp;
+ u_int32_t eip;
+ u_int32_t cs; /* WinNT.h says "must be sanitized" */
+ u_int32_t eflags; /* WinNT.h says "must be sanitized" */
+ u_int32_t esp;
+ u_int32_t ss;
+
+ /* The next field is included with MD_CONTEXT_X86_EXTENDED_REGISTERS.
+ * It contains vector (MMX/SSE) registers. It it laid out in the
+ * format used by the fxsave and fsrstor instructions, so it includes
+ * a copy of the x87 floating-point registers as well. See FXSAVE in
+ * "Intel Architecture Software Developer's Manual, Volume 2." */
+ u_int8_t extended_registers[
+ MD_CONTEXT_X86_EXTENDED_REGISTERS_SIZE];
+} MDRawContextX86; /* CONTEXT */
+
+/* For (MDRawContextX86).context_flags. These values indicate the type of
+ * context stored in the structure. The high 24 bits identify the CPU, the
+ * low 8 bits identify the type of context saved. */
+#define MD_CONTEXT_X86 0x00010000
+ /* CONTEXT_i386, CONTEXT_i486: identifies CPU */
+#define MD_CONTEXT_X86_CONTROL (MD_CONTEXT_X86 | 0x00000001)
+ /* CONTEXT_CONTROL */
+#define MD_CONTEXT_X86_INTEGER (MD_CONTEXT_X86 | 0x00000002)
+ /* CONTEXT_INTEGER */
+#define MD_CONTEXT_X86_SEGMENTS (MD_CONTEXT_X86 | 0x00000004)
+ /* CONTEXT_SEGMENTS */
+#define MD_CONTEXT_X86_FLOATING_POINT (MD_CONTEXT_X86 | 0x00000008)
+ /* CONTEXT_FLOATING_POINT */
+#define MD_CONTEXT_X86_DEBUG_REGISTERS (MD_CONTEXT_X86 | 0x00000010)
+ /* CONTEXT_DEBUG_REGISTERS */
+#define MD_CONTEXT_X86_EXTENDED_REGISTERS (MD_CONTEXT_X86 | 0x00000020)
+ /* CONTEXT_EXTENDED_REGISTERS */
+#define MD_CONTEXT_X86_XSTATE (MD_CONTEXT_X86 | 0x00000040)
+ /* CONTEXT_XSTATE */
+
+#define MD_CONTEXT_X86_FULL (MD_CONTEXT_X86_CONTROL | \
+ MD_CONTEXT_X86_INTEGER | \
+ MD_CONTEXT_X86_SEGMENTS)
+ /* CONTEXT_FULL */
+
+#define MD_CONTEXT_X86_ALL (MD_CONTEXT_X86_FULL | \
+ MD_CONTEXT_X86_FLOATING_POINT | \
+ MD_CONTEXT_X86_DEBUG_REGISTERS | \
+ MD_CONTEXT_X86_EXTENDED_REGISTERS)
+ /* CONTEXT_ALL */
+
+#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_X86_H__ */