164 lines
7.4 KiB
C
164 lines
7.4 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 ppc. 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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* Change to split into its own file: Neal Sidhwaney */
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/*
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* Breakpad minidump extension for PowerPC support. Based on Darwin/Mac OS X'
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* mach/ppc/_types.h
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*/
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#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC_H__
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#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC_H__
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#define MD_FLOATINGSAVEAREA_PPC_FPR_COUNT 32
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typedef struct {
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/* fpregs is a double[32] in mach/ppc/_types.h, but a u_int64_t is used
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* here for precise sizing. */
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u_int64_t fpregs[MD_FLOATINGSAVEAREA_PPC_FPR_COUNT];
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u_int32_t fpscr_pad;
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u_int32_t fpscr; /* Status/control */
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} MDFloatingSaveAreaPPC; /* Based on ppc_float_state */
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#define MD_VECTORSAVEAREA_PPC_VR_COUNT 32
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typedef struct {
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/* Vector registers (including vscr) are 128 bits, but mach/ppc/_types.h
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* exposes them as four 32-bit quantities. */
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u_int128_t save_vr[MD_VECTORSAVEAREA_PPC_VR_COUNT];
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u_int128_t save_vscr; /* Status/control */
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u_int32_t save_pad5[4];
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u_int32_t save_vrvalid; /* Identifies which vector registers are saved */
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u_int32_t save_pad6[7];
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} MDVectorSaveAreaPPC; /* ppc_vector_state */
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#define MD_CONTEXT_PPC_GPR_COUNT 32
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/* Use the same 32-bit alignment when accessing this structure from 64-bit code
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* as is used natively in 32-bit code. #pragma pack is a MSVC extension
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* supported by gcc. */
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#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
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#pragma pack(4)
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#else
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#pragma pack(push, 4)
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#endif
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typedef struct {
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/* context_flags is not present in ppc_thread_state, but it aids
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* identification of MDRawContextPPC among other raw context types,
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* and it guarantees alignment when we get to float_save. */
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u_int32_t context_flags;
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u_int32_t srr0; /* Machine status save/restore: stores pc
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* (instruction) */
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u_int32_t srr1; /* Machine status save/restore: stores msr
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* (ps, program/machine state) */
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/* ppc_thread_state contains 32 fields, r0 .. r31. Here, an array is
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* used for brevity. */
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u_int32_t gpr[MD_CONTEXT_PPC_GPR_COUNT];
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u_int32_t cr; /* Condition */
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u_int32_t xer; /* Integer (fiXed-point) exception */
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u_int32_t lr; /* Link */
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u_int32_t ctr; /* Count */
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u_int32_t mq; /* Multiply/Quotient (PPC 601, POWER only) */
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u_int32_t vrsave; /* Vector save */
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/* float_save and vector_save aren't present in ppc_thread_state, but
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* are represented in separate structures that still define a thread's
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* context. */
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MDFloatingSaveAreaPPC float_save;
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MDVectorSaveAreaPPC vector_save;
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} MDRawContextPPC; /* Based on ppc_thread_state */
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#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
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#pragma pack(0)
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#else
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#pragma pack(pop)
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#endif
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/* For (MDRawContextPPC).context_flags. These values indicate the type of
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* context stored in the structure. MD_CONTEXT_PPC is Breakpad-defined. Its
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* value was chosen to avoid likely conflicts with MD_CONTEXT_* for other
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* CPUs. */
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#define MD_CONTEXT_PPC 0x20000000
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#define MD_CONTEXT_PPC_BASE (MD_CONTEXT_PPC | 0x00000001)
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#define MD_CONTEXT_PPC_FLOATING_POINT (MD_CONTEXT_PPC | 0x00000008)
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#define MD_CONTEXT_PPC_VECTOR (MD_CONTEXT_PPC | 0x00000020)
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#define MD_CONTEXT_PPC_FULL MD_CONTEXT_PPC_BASE
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#define MD_CONTEXT_PPC_ALL (MD_CONTEXT_PPC_FULL | \
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MD_CONTEXT_PPC_FLOATING_POINT | \
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MD_CONTEXT_PPC_VECTOR)
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#endif /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_PPC_H__ */
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