Index: experimental/visual_studio_plugin/third_party/breakpad/google_breakpad/processor/stackwalker.h |
diff --git a/experimental/visual_studio_plugin/third_party/breakpad/google_breakpad/processor/stackwalker.h b/experimental/visual_studio_plugin/third_party/breakpad/google_breakpad/processor/stackwalker.h |
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--- a/experimental/visual_studio_plugin/third_party/breakpad/google_breakpad/processor/stackwalker.h |
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-// Copyright (c) 2010 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. |
- |
-// stackwalker.h: Generic stackwalker. |
-// |
-// The Stackwalker class is an abstract base class providing common generic |
-// methods that apply to stacks from all systems. Specific implementations |
-// will extend this class by providing GetContextFrame and GetCallerFrame |
-// methods to fill in system-specific data in a StackFrame structure. |
-// Stackwalker assembles these StackFrame strucutres into a CallStack. |
-// |
-// Author: Mark Mentovai |
- |
- |
-#ifndef GOOGLE_BREAKPAD_PROCESSOR_STACKWALKER_H__ |
-#define GOOGLE_BREAKPAD_PROCESSOR_STACKWALKER_H__ |
- |
-#include <set> |
-#include <string> |
-#include "google_breakpad/common/breakpad_types.h" |
- |
-namespace google_breakpad { |
- |
-class CallStack; |
-class CodeModule; |
-class CodeModules; |
-class MemoryRegion; |
-class MinidumpContext; |
-class SourceLineResolverInterface; |
-struct StackFrame; |
-class SymbolSupplier; |
-class SystemInfo; |
- |
-using std::set; |
- |
- |
-class Stackwalker { |
- public: |
- virtual ~Stackwalker() {} |
- |
- // Populates the given CallStack by calling GetContextFrame and |
- // GetCallerFrame. The frames are further processed to fill all available |
- // data. Returns true if the stackwalk completed, or false if it was |
- // interrupted by SymbolSupplier::GetSymbolFile(). |
- bool Walk(CallStack *stack); |
- |
- // Returns a new concrete subclass suitable for the CPU that a stack was |
- // generated on, according to the CPU type indicated by the context |
- // argument. If no suitable concrete subclass exists, returns NULL. |
- static Stackwalker* StackwalkerForCPU(const SystemInfo *system_info, |
- MinidumpContext *context, |
- MemoryRegion *memory, |
- const CodeModules *modules, |
- SymbolSupplier *supplier, |
- SourceLineResolverInterface *resolver); |
- |
- protected: |
- // system_info identifies the operating system, NULL or empty if unknown. |
- // memory identifies a MemoryRegion that provides the stack memory |
- // for the stack to walk. modules, if non-NULL, is a CodeModules |
- // object that is used to look up which code module each stack frame is |
- // associated with. supplier is an optional caller-supplied SymbolSupplier |
- // implementation. If supplier is NULL, source line info will not be |
- // resolved. resolver is an instance of SourceLineResolverInterface |
- // (see source_line_resolver_interface.h and basic_source_line_resolver.h). |
- // If resolver is NULL, source line info will not be resolved. |
- Stackwalker(const SystemInfo *system_info, |
- MemoryRegion *memory, |
- const CodeModules *modules, |
- SymbolSupplier *supplier, |
- SourceLineResolverInterface *resolver); |
- |
- // This can be used to filter out potential return addresses when |
- // the stack walker resorts to stack scanning. |
- // Returns true if any of: |
- // * This address is within a loaded module, but we don't have symbols |
- // for that module. |
- // * This address is within a loaded module for which we have symbols, |
- // and falls inside a function in that module. |
- // Returns false otherwise. |
- bool InstructionAddressSeemsValid(u_int64_t address); |
- |
- // Information about the system that produced the minidump. Subclasses |
- // and the SymbolSupplier may find this information useful. |
- const SystemInfo *system_info_; |
- |
- // The stack memory to walk. Subclasses will require this region to |
- // get information from the stack. |
- MemoryRegion *memory_; |
- |
- // A list of modules, for populating each StackFrame's module information. |
- // This field is optional and may be NULL. |
- const CodeModules *modules_; |
- |
- protected: |
- // The SourceLineResolver implementation. |
- SourceLineResolverInterface *resolver_; |
- |
- private: |
- // Obtains the context frame, the innermost called procedure in a stack |
- // trace. Returns NULL on failure. GetContextFrame allocates a new |
- // StackFrame (or StackFrame subclass), ownership of which is taken by |
- // the caller. |
- virtual StackFrame* GetContextFrame() = 0; |
- |
- // Obtains a caller frame. Each call to GetCallerFrame should return the |
- // frame that called the last frame returned by GetContextFrame or |
- // GetCallerFrame. To aid this purpose, stack contains the CallStack |
- // made of frames that have already been walked. GetCallerFrame should |
- // return NULL on failure or when there are no more caller frames (when |
- // the end of the stack has been reached). GetCallerFrame allocates a new |
- // StackFrame (or StackFrame subclass), ownership of which is taken by |
- // the caller. |
- virtual StackFrame* GetCallerFrame(const CallStack *stack) = 0; |
- |
- // The optional SymbolSupplier for resolving source line info. |
- SymbolSupplier *supplier_; |
- |
- // A list of modules that we haven't found symbols for. We track |
- // this in order to avoid repeatedly looking them up again within |
- // one minidump. |
- set<std::string> no_symbol_modules_; |
-}; |
- |
- |
-} // namespace google_breakpad |
- |
- |
-#endif // GOOGLE_BREAKPAD_PROCESSOR_STACKWALKER_H__ |