/thirdparty/breakpad/processor/fast_source_line_resolver_types.h
http://github.com/tomahawk-player/tomahawk · C Header · 179 lines · 85 code · 25 blank · 69 comment · 0 complexity · 0874fc13bb70a6e488d0658543519d01 MD5 · raw file
- // 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) { }
- 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);
- // 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_;
- // 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__