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f8baa66056
start-lib and end-lib are options to link object files in the same semantics as archive files. If an object is in start-lib and end-lib, the object is linked only when the file is needed to resolve undefined symbols. That means, if an object is in start-lib and end-lib, it behaves as if it were in an archive file. In this patch, I introduced a new notion, LazyObjectFile. That is analogous to Archive file type, but that works for a single object file instead of for an archive file. http://reviews.llvm.org/D18814 llvm-svn: 265710
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
//===- Driver.h -------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_ELF_DRIVER_H
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#define LLD_ELF_DRIVER_H
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#include "SymbolTable.h"
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#include "lld/Core/LLVM.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Support/raw_ostream.h"
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namespace lld {
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namespace elf {
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extern class LinkerDriver *Driver;
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class LinkerDriver {
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public:
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void main(ArrayRef<const char *> Args);
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void addFile(StringRef Path);
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void addLibrary(StringRef Name);
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private:
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std::vector<MemoryBufferRef> getArchiveMembers(MemoryBufferRef MB);
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void readConfigs(llvm::opt::InputArgList &Args);
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void createFiles(llvm::opt::InputArgList &Args);
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template <class ELFT> void link(llvm::opt::InputArgList &Args);
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// True if we are in --whole-archive and --no-whole-archive.
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bool WholeArchive = false;
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// True if we are in --start-lib and --end-lib.
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bool InLib = false;
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llvm::BumpPtrAllocator Alloc;
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std::vector<std::unique_ptr<InputFile>> Files;
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std::vector<std::unique_ptr<MemoryBuffer>> OwningMBs;
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};
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// Parses command line options.
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class ELFOptTable : public llvm::opt::OptTable {
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public:
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ELFOptTable();
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llvm::opt::InputArgList parse(ArrayRef<const char *> Argv);
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private:
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llvm::BumpPtrAllocator Alloc;
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};
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// Create enum with OPT_xxx values for each option in Options.td
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enum {
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OPT_INVALID = 0,
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#define OPTION(_1, _2, ID, _4, _5, _6, _7, _8, _9, _10, _11) OPT_##ID,
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#include "Options.inc"
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#undef OPTION
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};
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void printHelp(const char *Argv0);
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void printVersion();
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std::string findFromSearchPaths(StringRef Path);
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std::string searchLibrary(StringRef Path);
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std::string buildSysrootedPath(llvm::StringRef Dir, llvm::StringRef File);
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} // namespace elf
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} // namespace lld
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#endif
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