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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.
+//
+// basic_source_line_types.h: definition of nested classes/structs in
+// BasicSourceLineResolver. It moves the definitions out of
+// basic_source_line_resolver.cc, so that other classes could have access
+// to these private nested types without including basic_source_line_resolver.cc
+//
+// Author: Siyang Xie (lambxsy@google.com)
+
+#ifndef PROCESSOR_BASIC_SOURCE_LINE_RESOLVER_TYPES_H__
+#define PROCESSOR_BASIC_SOURCE_LINE_RESOLVER_TYPES_H__
+
+#include <map>
+#include <string>
+
+#include "common/scoped_ptr.h"
+#include "google_breakpad/processor/basic_source_line_resolver.h"
+#include "processor/source_line_resolver_base_types.h"
+
+#include "processor/address_map-inl.h"
+#include "processor/range_map-inl.h"
+#include "processor/contained_range_map-inl.h"
+
+#include "processor/linked_ptr.h"
+#include "google_breakpad/processor/stack_frame.h"
+#include "processor/cfi_frame_info.h"
+#include "processor/windows_frame_info.h"
+
+namespace google_breakpad {
+
+struct
+BasicSourceLineResolver::Function : public SourceLineResolverBase::Function {
+ Function(const string &function_name,
+ MemAddr function_address,
+ MemAddr code_size,
+ int set_parameter_size,
+ bool is_mutiple) : Base(function_name,
+ function_address,
+ code_size,
+ set_parameter_size,
+ is_mutiple),
+ lines() { }
+ RangeMap< MemAddr, linked_ptr<Line> > lines;
+ private:
+ typedef SourceLineResolverBase::Function Base;
+};
+
+
+class BasicSourceLineResolver::Module : public SourceLineResolverBase::Module {
+ public:
+ explicit Module(const string &name) : name_(name), is_corrupt_(false) { }
+ virtual ~Module() { }
+
+ // Loads a map from the given buffer in char* type.
+ // Does NOT have ownership of memory_buffer.
+ // The passed in |memory buffer| is of size |memory_buffer_size|. If it is
+ // not null terminated, LoadMapFromMemory() will null terminate it by
+ // modifying the passed in buffer.
+ virtual bool LoadMapFromMemory(char *memory_buffer,
+ size_t memory_buffer_size);
+
+ // Tells whether the loaded symbol data is corrupt. Return value is
+ // undefined, if the symbol data hasn't been loaded yet.
+ virtual bool IsCorrupt() const { return is_corrupt_; }
+
+ // Looks up the given relative address, and fills the StackFrame struct
+ // with the result.
+ virtual void LookupAddress(StackFrame *frame) const;
+
+ // If Windows stack walking information is available covering ADDRESS,
+ // return a WindowsFrameInfo structure describing it. If the information
+ // is not available, returns NULL. A NULL return value does not indicate
+ // an error. The caller takes ownership of any returned WindowsFrameInfo
+ // object.
+ virtual WindowsFrameInfo *FindWindowsFrameInfo(const StackFrame *frame) const;
+
+ // If CFI stack walking information is available covering ADDRESS,
+ // return a CFIFrameInfo structure describing it. If the information
+ // is not available, return NULL. The caller takes ownership of any
+ // returned CFIFrameInfo object.
+ virtual CFIFrameInfo *FindCFIFrameInfo(const StackFrame *frame) const;
+
+ private:
+ // Friend declarations.
+ friend class BasicSourceLineResolver;
+ friend class ModuleComparer;
+ friend class ModuleSerializer;
+
+ typedef std::map<int, string> FileMap;
+
+ // Logs parse errors. |*num_errors| is increased every time LogParseError is
+ // called.
+ static void LogParseError(
+ const string &message,
+ int line_number,
+ int *num_errors);
+
+ // Parses a file declaration
+ bool ParseFile(char *file_line);
+
+ // Parses a function declaration, returning a new Function object.
+ Function* ParseFunction(char *function_line);
+
+ // Parses a line declaration, returning a new Line object.
+ Line* ParseLine(char *line_line);
+
+ // Parses a PUBLIC symbol declaration, storing it in public_symbols_.
+ // Returns false if an error occurs.
+ bool ParsePublicSymbol(char *public_line);
+
+ // Parses a STACK WIN or STACK CFI frame info declaration, storing
+ // it in the appropriate table.
+ bool ParseStackInfo(char *stack_info_line);
+
+ // Parses a STACK CFI record, storing it in cfi_frame_info_.
+ bool ParseCFIFrameInfo(char *stack_info_line);
+
+ string name_;
+ FileMap files_;
+ RangeMap< MemAddr, linked_ptr<Function> > functions_;
+ AddressMap< MemAddr, linked_ptr<PublicSymbol> > public_symbols_;
+ bool is_corrupt_;
+
+ // Each element in the array is a ContainedRangeMap for a type
+ // listed in WindowsFrameInfoTypes. These are split by type because
+ // there may be overlaps between maps of different types, but some
+ // information is only available as certain types.
+ ContainedRangeMap< MemAddr, linked_ptr<WindowsFrameInfo> >
+ windows_frame_info_[WindowsFrameInfo::STACK_INFO_LAST];
+
+ // DWARF CFI stack walking data. The Module stores the initial rule sets
+ // and rule deltas as strings, just as they appear in the symbol file:
+ // although the file may contain hundreds of thousands of STACK CFI
+ // records, walking a stack will only ever use a few of them, so it's
+ // best to delay parsing a record until it's actually needed.
+
+ // STACK CFI INIT records: for each range, an initial set of register
+ // recovery rules. The RangeMap's itself gives the starting and ending
+ // addresses.
+ RangeMap<MemAddr, string> cfi_initial_rules_;
+
+ // STACK CFI records: at a given address, the changes to the register
+ // recovery rules that take effect at that address. The map key is the
+ // starting address; the ending address is the key of the next entry in
+ // this map, or the end of the range as given by the cfi_initial_rules_
+ // entry (which FindCFIFrameInfo looks up first).
+ std::map<MemAddr, string> cfi_delta_rules_;
+};
+
+} // namespace google_breakpad
+
+#endif // PROCESSOR_BASIC_SOURCE_LINE_RESOLVER_TYPES_H__