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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/basic_source_line_resolver_types.h')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/processor/basic_source_line_resolver_types.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/basic_source_line_resolver_types.h b/toolkit/crashreporter/google-breakpad/src/processor/basic_source_line_resolver_types.h new file mode 100644 index 0000000000..89eb57e88a --- /dev/null +++ b/toolkit/crashreporter/google-breakpad/src/processor/basic_source_line_resolver_types.h @@ -0,0 +1,179 @@ +// 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__ |