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llvm-mirror/tools/dsymutil/DwarfLinker.cpp
Frederic Riss f503042ce6 [dsymutil] Add DwarfLinker class.
It's an empty shell for now. It's main method just opens the debug
map objects and parses their Dwarf info. Test that we at least do
that correctly.

llvm-svn: 227337
2015-01-28 18:27:01 +00:00

75 lines
1.9 KiB
C++

//===- tools/dsymutil/DwarfLinker.cpp - Dwarf debug info linker -----------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DebugMap.h"
#include "BinaryHolder.h"
#include "DebugMap.h"
#include "dsymutil.h"
#include "llvm/DebugInfo/DWARFContext.h"
#include "llvm/DebugInfo/DWARFDebugInfoEntry.h"
#include <string>
namespace llvm {
namespace dsymutil {
namespace {
/// \brief The core of the Dwarf linking logic.
class DwarfLinker {
public:
DwarfLinker(StringRef OutputFilename, bool Verbose)
: OutputFilename(OutputFilename), Verbose(Verbose), BinHolder(Verbose) {}
/// \brief Link the contents of the DebugMap.
bool link(const DebugMap &);
private:
std::string OutputFilename;
bool Verbose;
BinaryHolder BinHolder;
};
bool DwarfLinker::link(const DebugMap &Map) {
if (Map.begin() == Map.end()) {
errs() << "Empty debug map.\n";
return false;
}
for (const auto &Obj : Map.objects()) {
if (Verbose)
outs() << "DEBUG MAP OBJECT: " << Obj->getObjectFilename() << "\n";
auto ErrOrObj = BinHolder.GetObjectFile(Obj->getObjectFilename());
if (std::error_code EC = ErrOrObj.getError()) {
errs() << Obj->getObjectFilename() << ": " << EC.message() << "\n";
continue;
}
DWARFContextInMemory DwarfContext(*ErrOrObj);
for (const auto &CU : DwarfContext.compile_units()) {
auto *CUDie = CU->getCompileUnitDIE(false);
if (Verbose) {
outs() << "Input compilation unit:";
CUDie->dump(outs(), CU.get(), 0);
}
}
}
return true;
}
}
bool linkDwarf(StringRef OutputFilename, const DebugMap &DM, bool Verbose) {
DwarfLinker Linker(OutputFilename, Verbose);
return Linker.link(DM);
}
}
}