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author | jimblandy@gmail.com <jimblandy@gmail.com@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2009-12-15 17:06:21 +0000 |
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committer | jimblandy@gmail.com <jimblandy@gmail.com@4c0a9323-5329-0410-9bdc-e9ce6186880e> | 2009-12-15 17:06:21 +0000 |
commit | 4969cfc6477c56afb2d4f2f6c1733c3120690b6d (patch) | |
tree | 52186583f84db967ed1dc787312006316212454d /src/common/dwarf/functioninfo.h | |
parent | Issue 26001: Linux dumper: fix comments in STABS reader (diff) | |
download | breakpad-4969cfc6477c56afb2d4f2f6c1733c3120690b6d.tar.xz |
Issue 39002: Breakpad DWARF parser: Move DWARF parser to platform-independent directory.
Move the DWARF parser, and the functioninfo.cc DWARF consumer, from
src/common/mac/dwarf to src/commmon/dwarf, so that it can be shared
between the Mac and Linux dumpers.
Fix up #include directives, multiple inclusion protection macros, and
Xcode build files.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@446 4c0a9323-5329-0410-9bdc-e9ce6186880e
Diffstat (limited to 'src/common/dwarf/functioninfo.h')
-rw-r--r-- | src/common/dwarf/functioninfo.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/common/dwarf/functioninfo.h b/src/common/dwarf/functioninfo.h new file mode 100644 index 00000000..ad42ec74 --- /dev/null +++ b/src/common/dwarf/functioninfo.h @@ -0,0 +1,178 @@ +// Copyright 2006 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. + + +// This file contains the definitions for a DWARF2/3 information +// collector that uses the DWARF2/3 reader interface to build a mapping +// of addresses to files, lines, and functions. + +#ifndef COMMON_DWARF_FUNCTIONINFO_H__ +#define COMMON_DWARF_FUNCTIONINFO_H__ + +#include <map> +#include <string> +#include <utility> +#include <vector> + +#include "common/dwarf/dwarf2reader.h" + + +namespace dwarf2reader { + +struct FunctionInfo { + // Name of the function + string name; + // Mangled name of the function + string mangled_name; + // File containing this function + string file; + // Line number for start of function. + uint32 line; + // Beginning address for this function + uint64 lowpc; + // End address for this function. + uint64 highpc; +}; + +struct SourceFileInfo { + // Name of the source file name + string name; + // Low address of source file name + uint64 lowpc; +}; + +typedef map<uint64, FunctionInfo*> FunctionMap; +typedef map<uint64, pair<string, uint32> > LineMap; + +// This class is a basic line info handler that fills in the dirs, +// file, and linemap passed into it with the data produced from the +// LineInfoHandler. +class CULineInfoHandler: public LineInfoHandler { + public: + + // + CULineInfoHandler(vector<SourceFileInfo>* files, + vector<string>* dirs, + LineMap* linemap); + virtual ~CULineInfoHandler() { } + + // Called when we define a directory. We just place NAME into dirs_ + // at position DIR_NUM. + virtual void DefineDir(const string& name, uint32 dir_num); + + // Called when we define a filename. We just place + // concat(dirs_[DIR_NUM], NAME) into files_ at position FILE_NUM. + virtual void DefineFile(const string& name, int32 file_num, + uint32 dir_num, uint64 mod_time, uint64 length); + + + // Called when the line info reader has a new line, address pair + // ready for us. ADDRESS is the address of the code, FILE_NUM is + // the file number containing the code, LINE_NUM is the line number + // in that file for the code, and COLUMN_NUM is the column number + // the code starts at, if we know it (0 otherwise). + virtual void AddLine(uint64 address, uint32 file_num, uint32 line_num, + uint32 column_num); + + + private: + LineMap* linemap_; + vector<SourceFileInfo>* files_; + vector<string>* dirs_; +}; + +class CUFunctionInfoHandler: public Dwarf2Handler { + public: + CUFunctionInfoHandler(vector<SourceFileInfo>* files, + vector<string>* dirs, + LineMap* linemap, + FunctionMap* offset_to_funcinfo, + FunctionMap* address_to_funcinfo, + CULineInfoHandler* linehandler, + const SectionMap& sections, + ByteReader* reader) + : files_(files), dirs_(dirs), linemap_(linemap), + offset_to_funcinfo_(offset_to_funcinfo), + address_to_funcinfo_(address_to_funcinfo), + linehandler_(linehandler), sections_(sections), + reader_(reader), current_function_info_(NULL) { } + + virtual ~CUFunctionInfoHandler() { } + + // Start to process a compilation unit at OFFSET from the beginning of the + // debug_info section. We want to see all compilation units, so we + // always return true. + + virtual bool StartCompilationUnit(uint64 offset, uint8 address_size, + uint8 offset_size, uint64 cu_length, + uint8 dwarf_version); + + // Start to process a DIE at OFFSET from the beginning of the + // debug_info section. We only care about function related DIE's. + virtual bool StartDIE(uint64 offset, enum DwarfTag tag, + const AttributeList& attrs); + + // Called when we have an attribute with unsigned data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + virtual void ProcessAttributeUnsigned(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + + // Called when we have an attribute with string data to give to + // our handler. The attribute is for the DIE at OFFSET from the + // beginning of compilation unit, has a name of ATTR, a form of + // FORM, and the actual data of the attribute is in DATA. + virtual void ProcessAttributeString(uint64 offset, + enum DwarfAttribute attr, + enum DwarfForm form, + const string& data); + + // Called when finished processing the DIE at OFFSET. + // Because DWARF2/3 specifies a tree of DIEs, you may get starts + // before ends of the previous DIE, as we process children before + // ending the parent. + virtual void EndDIE(uint64 offset); + + private: + vector<SourceFileInfo>* files_; + vector<string>* dirs_; + LineMap* linemap_; + FunctionMap* offset_to_funcinfo_; + FunctionMap* address_to_funcinfo_; + CULineInfoHandler* linehandler_; + const SectionMap& sections_; + ByteReader* reader_; + FunctionInfo* current_function_info_; + uint64 current_compilation_unit_offset_; +}; + +} // namespace dwarf2reader +#endif // COMMON_DWARF_FUNCTIONINFO_H__ |