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//===- lib/ReaderWriter/PECOFF/PECOFFTargetInfo.cpp -----------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "GroupedSectionsPass.h"
#include "IdataPass.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/Path.h"
#include "lld/Core/PassManager.h"
#include "lld/Passes/LayoutPass.h"
#include "lld/ReaderWriter/PECOFFTargetInfo.h"
#include "lld/ReaderWriter/Reader.h"
#include "lld/ReaderWriter/Writer.h"
namespace lld {
namespace {
bool containDirectoryName(StringRef path) {
SmallString<128> smallStr = StringRef(path);
llvm::sys::path::remove_filename(smallStr);
return !smallStr.str().empty();
}
} // anonymous namespace
error_code PECOFFTargetInfo::parseFile(
std::unique_ptr<MemoryBuffer> &mb,
std::vector<std::unique_ptr<File>> &result) const {
return _reader->parseFile(mb, result);
}
bool PECOFFTargetInfo::validateImpl(raw_ostream &diagnostics) {
if (_stackReserve < _stackCommit) {
diagnostics << "Invalid stack size: reserve size must be equal to or "
<< "greater than commit size, but got "
<< _stackCommit << " and " << _stackReserve << ".\n";
return true;
}
if (_heapReserve < _heapCommit) {
diagnostics << "Invalid heap size: reserve size must be equal to or "
<< "greater than commit size, but got "
<< _heapCommit << " and " << _heapReserve << ".\n";
return true;
}
_reader = createReaderPECOFF(*this);
_writer = createWriterPECOFF(*this);
return false;
}
/// Append the given file to the input file list. The file must be an object
/// file or an import library file.
bool PECOFFTargetInfo::appendInputFileOrLibrary(std::string path) {
std::string ext = llvm::sys::path::extension(path).lower();
// This is an import library file. Look for the library file in the search
// paths, unless the path contains a directory name.
if (ext == ".lib") {
if (containDirectoryName(path)) {
appendInputFile(path);
return true;
}
return appendLibraryFile(path);
}
// This is an object file otherwise. Add ".obj" extension if the given path
// name has no file extension.
if (ext.empty())
path.append(".obj");
appendInputFile(allocateString(path));
return true;
}
/// Try to find the input library file from the search paths and append it to
/// the input file list. Returns true if the library file is found.
bool PECOFFTargetInfo::appendLibraryFile(StringRef filename) {
// Current directory always takes precedence over the search paths.
if (llvm::sys::fs::exists(filename)) {
appendInputFile(filename);
return true;
}
// Iterate over the search paths.
for (StringRef dir : _inputSearchPaths) {
SmallString<128> path = dir;
llvm::sys::path::append(path, filename);
if (llvm::sys::fs::exists(path.str())) {
appendInputFile(allocateString(path.str()));
return true;
}
}
return false;
}
Writer &PECOFFTargetInfo::writer() const {
return *_writer;
}
ErrorOr<Reference::Kind>
PECOFFTargetInfo::relocKindFromString(StringRef str) const {
return make_error_code(yaml_reader_error::illegal_value);
}
ErrorOr<std::string>
PECOFFTargetInfo::stringFromRelocKind(Reference::Kind kind) const {
return make_error_code(yaml_reader_error::illegal_value);
}
void PECOFFTargetInfo::addPasses(PassManager &pm) const {
pm.add(std::unique_ptr<Pass>(new pecoff::GroupedSectionsPass()));
pm.add(std::unique_ptr<Pass>(new pecoff::IdataPass()));
pm.add(std::unique_ptr<Pass>(new LayoutPass()));
}
} // end namespace lld
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