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38dbd3eea9
Previously, all input files were owned by the symbol table. Files were created at various places, such as the Driver, the lazy symbols, or the bitcode compiler, and the ownership of new files was transferred to the symbol table using std::unique_ptr. All input files were then free'd when the symbol table is freed which is on program exit. I think we don't have to transfer ownership just to free all instance at once on exit. In this patch, all instances are automatically collected to a vector and freed on exit. In this way, we no longer have to use std::unique_ptr. Differential Revision: https://reviews.llvm.org/D24493 llvm-svn: 281425
85 lines
2.3 KiB
C++
85 lines
2.3 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 "lld/Core/Reproduce.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/StringSet.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, bool KnownScript = false);
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void addLibrary(StringRef Name);
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llvm::LLVMContext Context; // to parse bitcode ifles
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std::unique_ptr<CpioFile> Cpio; // for reproduce
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private:
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std::vector<MemoryBufferRef> getArchiveMembers(MemoryBufferRef MB);
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llvm::Optional<MemoryBufferRef> readFile(StringRef Path);
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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<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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std::string getVersionString();
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std::vector<uint8_t> parseHexstring(StringRef S);
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std::string createResponseFile(const llvm::opt::InputArgList &Args);
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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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