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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.
+//
+// fast_source_line_resolver_types.h: definition of nested classes/structs in
+// FastSourceLineResolver. It moves the definitions out of
+// fast_source_line_resolver.cc, so that other classes could have access
+// to these private nested types without including fast_source_line_resolver.cc
+//
+// Author: lambxsy@google.com (Siyang Xie)
+
+#ifndef PROCESSOR_FAST_SOURCE_LINE_RESOLVER_TYPES_H__
+#define PROCESSOR_FAST_SOURCE_LINE_RESOLVER_TYPES_H__
+
+#include "google_breakpad/processor/fast_source_line_resolver.h"
+#include "processor/source_line_resolver_base_types.h"
+
+#include <map>
+#include <string>
+
+#include "google_breakpad/processor/stack_frame.h"
+#include "processor/cfi_frame_info.h"
+#include "processor/static_address_map-inl.h"
+#include "processor/static_contained_range_map-inl.h"
+#include "processor/static_map.h"
+#include "processor/static_range_map-inl.h"
+#include "processor/windows_frame_info.h"
+
+namespace google_breakpad {
+
+struct FastSourceLineResolver::Line : public SourceLineResolverBase::Line {
+ void CopyFrom(const Line *line_ptr) {
+ const char *raw = reinterpret_cast<const char*>(line_ptr);
+ CopyFrom(raw);
+ }
+
+ // De-serialize the memory data of a Line.
+ void CopyFrom(const char *raw) {
+ address = *(reinterpret_cast<const MemAddr*>(raw));
+ size = *(reinterpret_cast<const MemAddr*>(raw + sizeof(address)));
+ source_file_id = *(reinterpret_cast<const int32_t *>(
+ raw + 2 * sizeof(address)));
+ line = *(reinterpret_cast<const int32_t*>(
+ raw + 2 * sizeof(address) + sizeof(source_file_id)));
+ }
+};
+
+struct FastSourceLineResolver::Function :
+public SourceLineResolverBase::Function {
+ void CopyFrom(const Function *func_ptr) {
+ const char *raw = reinterpret_cast<const char*>(func_ptr);
+ CopyFrom(raw);
+ }
+
+ // De-serialize the memory data of a Function.
+ void CopyFrom(const char *raw) {
+ size_t name_size = strlen(raw) + 1;
+ name = raw;
+ address = *(reinterpret_cast<const MemAddr*>(raw + name_size));
+ size = *(reinterpret_cast<const MemAddr*>(
+ raw + name_size + sizeof(MemAddr)));
+ parameter_size = *(reinterpret_cast<const int32_t*>(
+ raw + name_size + 2 * sizeof(MemAddr)));
+ lines = StaticRangeMap<MemAddr, Line>(
+ raw + name_size + 2 * sizeof(MemAddr) + sizeof(int32_t));
+ }
+
+ StaticRangeMap<MemAddr, Line> lines;
+};
+
+struct FastSourceLineResolver::PublicSymbol :
+public SourceLineResolverBase::PublicSymbol {
+ void CopyFrom(const PublicSymbol *public_symbol_ptr) {
+ const char *raw = reinterpret_cast<const char*>(public_symbol_ptr);
+ CopyFrom(raw);
+ }
+
+ // De-serialize the memory data of a PublicSymbol.
+ void CopyFrom(const char *raw) {
+ size_t name_size = strlen(raw) + 1;
+ name = raw;
+ address = *(reinterpret_cast<const MemAddr*>(raw + name_size));
+ parameter_size = *(reinterpret_cast<const int32_t*>(
+ raw + name_size + sizeof(MemAddr)));
+ }
+};
+
+class FastSourceLineResolver::Module: public SourceLineResolverBase::Module {
+ public:
+ explicit Module(const string &name) : name_(name), is_corrupt_(false) { }
+ virtual ~Module() { }
+
+ // Looks up the given relative address, and fills the StackFrame struct
+ // with the result.
+ virtual void LookupAddress(StackFrame *frame) const;
+
+ // Loads a map from the given buffer in char* type.
+ 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_; }
+
+ // 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;
+
+ // Number of serialized map components of Module.
+ static const int kNumberMaps_ = 5 + WindowsFrameInfo::STACK_INFO_LAST;
+
+ private:
+ friend class FastSourceLineResolver;
+ friend class ModuleComparer;
+ typedef StaticMap<int, char> FileMap;
+
+ string name_;
+ StaticMap<int, char> files_;
+ StaticRangeMap<MemAddr, Function> functions_;
+ StaticAddressMap<MemAddr, 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.
+ StaticContainedRangeMap<MemAddr, char>
+ 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.
+ StaticRangeMap<MemAddr, char> 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).
+ StaticMap<MemAddr, char> cfi_delta_rules_;
+};
+
+} // namespace google_breakpad
+
+#endif // PROCESSOR_FAST_SOURCE_LINE_RESOLVER_TYPES_H__