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llvm-mirror/tools/dsymutil/dsymutil.h
Jonas Devlieghere 3351ebfb30 [dsymutil] Apply recursion workaround for threading
The DwarfLinker can have some very deep recursion that can max out the
(significantly smaller) stack when using threads. We don't want this
limitation when we only have a single thread. We already have this
workaround for the architecture-related threading. This patch applies
the same workaround to the parallel analysis and cloning.

Differential revision: https://reviews.llvm.org/D45172

llvm-svn: 329093
2018-04-03 18:01:18 +00:00

84 lines
2.3 KiB
C++

//===- tools/dsymutil/dsymutil.h - dsymutil high-level functionality ------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
///
/// This file contains the class declaration for the code that parses STABS
/// debug maps that are embedded in the binaries symbol tables.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_DSYMUTIL_DSYMUTIL_H
#define LLVM_TOOLS_DSYMUTIL_DSYMUTIL_H
#include "DebugMap.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorOr.h"
#include <memory>
#include <string>
#include <vector>
namespace llvm {
namespace dsymutil {
struct LinkOptions {
/// Verbosity
bool Verbose = false;
/// Skip emitting output
bool NoOutput = false;
/// Do not unique types according to ODR
bool NoODR = false;
/// Update
bool Update = false;
/// Minimize
bool Minimize = false;
/// Do not check swiftmodule timestamp
bool NoTimestamp = false;
/// Number of threads.
unsigned Threads = 1;
/// -oso-prepend-path
std::string PrependPath;
LinkOptions() = default;
};
/// Extract the DebugMaps from the given file.
/// The file has to be a MachO object file. Multiple debug maps can be
/// returned when the file is universal (aka fat) binary.
ErrorOr<std::vector<std::unique_ptr<DebugMap>>>
parseDebugMap(StringRef InputFile, ArrayRef<std::string> Archs,
StringRef PrependPath, bool PaperTrailWarnings, bool Verbose,
bool InputIsYAML);
/// Dump the symbol table
bool dumpStab(StringRef InputFile, ArrayRef<std::string> Archs,
StringRef PrependPath = "");
/// Link the Dwarf debug info as directed by the passed DebugMap \p DM into a
/// DwarfFile named \p OutputFilename. \returns false if the link failed.
bool linkDwarf(raw_fd_ostream &OutFile, const DebugMap &DM,
const LinkOptions &Options);
void warn(Twine Warning, Twine Context = {});
bool error(Twine Error, Twine Context = {});
} // end namespace dsymutil
} // end namespace llvm
#endif // LLVM_TOOLS_DSYMUTIL_DSYMUTIL_H