llvm::gsym::DwarfTransformer Class Reference

A class that transforms the DWARF in a DWARFContext into GSYM information by populating the GsymCreator object that it is constructed with. More...

#include "llvm/DebugInfo/GSYM/DwarfTransformer.h"

Public Member Functions
	DwarfTransformer (DWARFContext &D, GsymCreator &G, bool LDCS=false)
	Create a DWARF transformer.
llvm::Error	convert (uint32_t NumThreads, OutputAggregator &OS)
	Extract the DWARF from the supplied object file and convert it into the Gsym format in the GsymCreator object that is passed in.
llvm::Error	verify (StringRef GsymPath, OutputAggregator &OS)

Friends
class	DwarfTransformerTest

Detailed Description

A class that transforms the DWARF in a DWARFContext into GSYM information by populating the GsymCreator object that it is constructed with.

This class supports converting all DW_TAG_subprogram DIEs into gsym::FunctionInfo objects that includes line table information and inline function information. Creating a separate class to transform this data allows this class to be unit tested.

Definition at line 34 of file DwarfTransformer.h.

Constructor & Destructor Documentation

DwarfTransformer()

llvm::gsym::DwarfTransformer::DwarfTransformer ( DWARFContext &  D, GsymCreator &  G, bool  LDCS = false  )

inline

Create a DWARF transformer.

Parameters

D	The DWARF to use when converting to GSYM.
G	The GSYM creator to populate with the function information from the debug info.
LDCS	Flag to indicate whether we should load the call site information from DWARF DW_TAG_call_site entries

Definition at line 45 of file DwarfTransformer.h.

Member Function Documentation

convert()

Error DwarfTransformer::convert	(	uint32_t	NumThreads,
		OutputAggregator &	OS
	)

Extract the DWARF from the supplied object file and convert it into the Gsym format in the GsymCreator object that is passed in.

Returns an error if something fatal is encountered.

Parameters

NumThreads	The number of threads that the conversion process can use.
OS	The stream to log warnings and non fatal issues to. If NULL then don't log.

Returns

An error indicating any fatal issues that happen when parsing the DWARF, or Error::success() if all goes well.

Definition at line 618 of file DwarfTransformer.cpp.

References llvm::ThreadPoolInterface::async(), llvm::DWARFContext::compile_units(), llvm::gsym::GsymCreator::getNumFunctionInfos(), llvm::gsym::OutputAggregator::GetOS(), llvm::DWARFUnit::getUnitDIE(), llvm::hardware_concurrency(), llvm::DWARFUnit::isDWOUnit(), llvm::gsym::OutputAggregator::Merge(), OS, llvm::gsym::OutputAggregator::Report(), llvm::Error::success(), llvm::dwarf::toString(), and llvm::SingleThreadExecutor::wait().

verify()

llvm::Error DwarfTransformer::verify	(	StringRef	GsymPath,
		OutputAggregator &	OS
	)

Definition at line 695 of file DwarfTransformer.cpp.

References Addr, llvm::count(), llvm::createStringError(), llvm::DWARFContext::getInliningInfoForAddress(), llvm::DWARFContext::getLineInfoForAddress(), llvm::gsym::OutputAggregator::GetOS(), HEX64, I, Idx, llvm::gsym::GsymReader::openFile(), llvm::gsym::FunctionInfo::size(), llvm::Error::success(), and llvm::object::SectionedAddress::UndefSection.

Friends And Related Function Documentation

DwarfTransformerTest

friend class DwarfTransformerTest

friend

Definition at line 100 of file DwarfTransformer.h.

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The documentation for this class was generated from the following files:

• include/llvm/DebugInfo/GSYM/DwarfTransformer.h
• lib/DebugInfo/GSYM/DwarfTransformer.cpp