1 files changed, 0 insertions, 489 deletions
diff --git a/lib/Archive/ArchiveWriter.cpp b/lib/Archive/ArchiveWriter.cpp
deleted file mode 100644
index 3eba701c9535..000000000000
--- a/lib/Archive/ArchiveWriter.cpp
+++ /dev/null
@@ -1,489 +0,0 @@
-//===-- ArchiveWriter.cpp - Write LLVM archive files ----------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Builds up an LLVM archive file (.a) containing LLVM bitcode.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Bitcode/Archive.h"
-#include "ArchiveInternals.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Process.h"
-#include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
-#include <fstream>
-#include <iomanip>
-#include <ostream>
-using namespace llvm;
-
-// Write an integer using variable bit rate encoding. This saves a few bytes
-// per entry in the symbol table.
-static inline void writeInteger(unsigned num, std::ofstream& ARFile) {
-  while (1) {
-    if (num < 0x80) { // done?
-      ARFile << (unsigned char)num;
-      return;
-    }
-
-    // Nope, we are bigger than a character, output the next 7 bits and set the
-    // high bit to say that there is more coming...
-    ARFile << (unsigned char)(0x80 | ((unsigned char)num & 0x7F));
-    num >>= 7;  // Shift out 7 bits now...
-  }
-}
-
-// Compute how many bytes are taken by a given VBR encoded value. This is needed
-// to pre-compute the size of the symbol table.
-static inline unsigned numVbrBytes(unsigned num) {
-
-  // Note that the following nested ifs are somewhat equivalent to a binary
-  // search. We split it in half by comparing against 2^14 first. This allows
-  // most reasonable values to be done in 2 comparisons instead of 1 for
-  // small ones and four for large ones. We expect this to access file offsets
-  // in the 2^10 to 2^24 range and symbol lengths in the 2^0 to 2^8 range,
-  // so this approach is reasonable.
-  if (num < 1<<14) {
-    if (num < 1<<7)
-      return 1;
-    else
-      return 2;
-  }
-  if (num < 1<<21)
-    return 3;
-
-  if (num < 1<<28)
-    return 4;
-  return 5; // anything >= 2^28 takes 5 bytes
-}
-
-// Create an empty archive.
-Archive* Archive::CreateEmpty(const sys::Path& FilePath, LLVMContext& C) {
-  Archive* result = new Archive(FilePath, C);
-  return result;
-}
-
-// Fill the ArchiveMemberHeader with the information from a member. If
-// TruncateNames is true, names are flattened to 15 chars or less. The sz field
-// is provided here instead of coming from the mbr because the member might be
-// stored compressed and the compressed size is not the ArchiveMember's size.
-// Furthermore compressed files have negative size fields to identify them as
-// compressed.
-bool
-Archive::fillHeader(const ArchiveMember &mbr, ArchiveMemberHeader& hdr,
-                    int sz, bool TruncateNames) const {
-
-  // Set the permissions mode, uid and gid
-  hdr.init();
-  char buffer[32];
-  sprintf(buffer, "%-8o", mbr.getMode());
-  memcpy(hdr.mode,buffer,8);
-  sprintf(buffer,  "%-6u", mbr.getUser());
-  memcpy(hdr.uid,buffer,6);
-  sprintf(buffer,  "%-6u", mbr.getGroup());
-  memcpy(hdr.gid,buffer,6);
-
-  // Set the last modification date
-  uint64_t secondsSinceEpoch = mbr.getModTime().toEpochTime();
-  sprintf(buffer,"%-12u", unsigned(secondsSinceEpoch));
-  memcpy(hdr.date,buffer,12);
-
-  // Get rid of trailing blanks in the name
-  std::string mbrPath = mbr.getPath().str();
-  size_t mbrLen = mbrPath.length();
-  while (mbrLen > 0 && mbrPath[mbrLen-1] == ' ') {
-    mbrPath.erase(mbrLen-1,1);
-    mbrLen--;
-  }
-
-  // Set the name field in one of its various flavors.
-  bool writeLongName = false;
-  if (mbr.isStringTable()) {
-    memcpy(hdr.name,ARFILE_STRTAB_NAME,16);
-  } else if (mbr.isSVR4SymbolTable()) {
-    memcpy(hdr.name,ARFILE_SVR4_SYMTAB_NAME,16);
-  } else if (mbr.isBSD4SymbolTable()) {
-    memcpy(hdr.name,ARFILE_BSD4_SYMTAB_NAME,16);
-  } else if (mbr.isLLVMSymbolTable()) {
-    memcpy(hdr.name,ARFILE_LLVM_SYMTAB_NAME,16);
-  } else if (TruncateNames) {
-    const char* nm = mbrPath.c_str();
-    unsigned len = mbrPath.length();
-    size_t slashpos = mbrPath.rfind('/');
-    if (slashpos != std::string::npos) {
-      nm += slashpos + 1;
-      len -= slashpos +1;
-    }
-    if (len > 15)
-      len = 15;
-    memcpy(hdr.name,nm,len);
-    hdr.name[len] = '/';
-  } else if (mbrPath.length() < 16 && mbrPath.find('/') == std::string::npos) {
-    memcpy(hdr.name,mbrPath.c_str(),mbrPath.length());
-    hdr.name[mbrPath.length()] = '/';
-  } else {
-    std::string nm = "#1/";
-    nm += utostr(mbrPath.length());
-    memcpy(hdr.name,nm.data(),nm.length());
-    if (sz < 0)
-      sz -= mbrPath.length();
-    else
-      sz += mbrPath.length();
-    writeLongName = true;
-  }
-
-  // Set the size field
-  if (sz < 0) {
-    buffer[0] = '-';
-    sprintf(&buffer[1],"%-9u",(unsigned)-sz);
-  } else {
-    sprintf(buffer, "%-10u", (unsigned)sz);
-  }
-  memcpy(hdr.size,buffer,10);
-
-  return writeLongName;
-}
-
-// Insert a file into the archive before some other member. This also takes care
-// of extracting the necessary flags and information from the file.
-bool
-Archive::addFileBefore(const sys::Path& filePath, iterator where,
-                        std::string* ErrMsg) {
-  bool Exists;
-  if (sys::fs::exists(filePath.str(), Exists) || !Exists) {
-    if (ErrMsg)
-      *ErrMsg = "Can not add a non-existent file to archive";
-    return true;
-  }
-
-  ArchiveMember* mbr = new ArchiveMember(this);
-
-  mbr->data = 0;
-  mbr->path = filePath;
-  const sys::FileStatus *FSInfo = mbr->path.getFileStatus(false, ErrMsg);
-  if (!FSInfo) {
-    delete mbr;
-    return true;
-  }
-  mbr->info = *FSInfo;
-
-  unsigned flags = 0;
-  bool hasSlash = filePath.str().find('/') != std::string::npos;
-  if (hasSlash)
-    flags |= ArchiveMember::HasPathFlag;
-  if (hasSlash || filePath.str().length() > 15)
-    flags |= ArchiveMember::HasLongFilenameFlag;
-
-  sys::fs::file_magic type;
-  if (sys::fs::identify_magic(mbr->path.str(), type))
-    type = sys::fs::file_magic::unknown;
-  switch (type) {
-    case sys::fs::file_magic::bitcode:
-      flags |= ArchiveMember::BitcodeFlag;
-      break;
-    default:
-      break;
-  }
-  mbr->flags = flags;
-  members.insert(where,mbr);
-  return false;
-}
-
-// Write one member out to the file.
-bool
-Archive::writeMember(
-  const ArchiveMember& member,
-  std::ofstream& ARFile,
-  bool CreateSymbolTable,
-  bool TruncateNames,
-  std::string* ErrMsg
-) {
-
-  unsigned filepos = ARFile.tellp();
-  filepos -= 8;
-
-  // Get the data and its size either from the
-  // member's in-memory data or directly from the file.
-  size_t fSize = member.getSize();
-  const char *data = (const char*)member.getData();
-  MemoryBuffer *mFile = 0;
-  if (!data) {
-    OwningPtr<MemoryBuffer> File;
-    if (error_code ec = MemoryBuffer::getFile(member.getPath().c_str(), File)) {
-      if (ErrMsg)
-        *ErrMsg = ec.message();
-      return true;
-    }
-    mFile = File.take();
-    data = mFile->getBufferStart();
-    fSize = mFile->getBufferSize();
-  }
-
-  // Now that we have the data in memory, update the
-  // symbol table if it's a bitcode file.
-  if (CreateSymbolTable && member.isBitcode()) {
-    std::vector<std::string> symbols;
-    std::string FullMemberName = archPath.str() + "(" + member.getPath().str()
-      + ")";
-    Module* M =
-      GetBitcodeSymbols(data, fSize, FullMemberName, Context, symbols, ErrMsg);
-
-    // If the bitcode parsed successfully
-    if ( M ) {
-      for (std::vector<std::string>::iterator SI = symbols.begin(),
-           SE = symbols.end(); SI != SE; ++SI) {
-
-        std::pair<SymTabType::iterator,bool> Res =
-          symTab.insert(std::make_pair(*SI,filepos));
-
-        if (Res.second) {
-          symTabSize += SI->length() +
-                        numVbrBytes(SI->length()) +
-                        numVbrBytes(filepos);
-        }
-      }
-      // We don't need this module any more.
-      delete M;
-    } else {
-      delete mFile;
-      if (ErrMsg)
-        *ErrMsg = "Can't parse bitcode member: " + member.getPath().str()
-          + ": " + *ErrMsg;
-      return true;
-    }
-  }
-
-  int hdrSize = fSize;
-
-  // Compute the fields of the header
-  ArchiveMemberHeader Hdr;
-  bool writeLongName = fillHeader(member,Hdr,hdrSize,TruncateNames);
-
-  // Write header to archive file
-  ARFile.write((char*)&Hdr, sizeof(Hdr));
-
-  // Write the long filename if its long
-  if (writeLongName) {
-    ARFile.write(member.getPath().str().data(),
-                 member.getPath().str().length());
-  }
-
-  // Write the (possibly compressed) member's content to the file.
-  ARFile.write(data,fSize);
-
-  // Make sure the member is an even length
-  if ((ARFile.tellp() & 1) == 1)
-    ARFile << ARFILE_PAD;
-
-  // Close the mapped file if it was opened
-  delete mFile;
-  return false;
-}
-
-// Write out the LLVM symbol table as an archive member to the file.
-void
-Archive::writeSymbolTable(std::ofstream& ARFile) {
-
-  // Construct the symbol table's header
-  ArchiveMemberHeader Hdr;
-  Hdr.init();
-  memcpy(Hdr.name,ARFILE_LLVM_SYMTAB_NAME,16);
-  uint64_t secondsSinceEpoch = sys::TimeValue::now().toEpochTime();
-  char buffer[32];
-  sprintf(buffer, "%-8o", 0644);
-  memcpy(Hdr.mode,buffer,8);
-  sprintf(buffer, "%-6u", sys::Process::GetCurrentUserId());
-  memcpy(Hdr.uid,buffer,6);
-  sprintf(buffer, "%-6u", sys::Process::GetCurrentGroupId());
-  memcpy(Hdr.gid,buffer,6);
-  sprintf(buffer,"%-12u", unsigned(secondsSinceEpoch));
-  memcpy(Hdr.date,buffer,12);
-  sprintf(buffer,"%-10u",symTabSize);
-  memcpy(Hdr.size,buffer,10);
-
-  // Write the header
-  ARFile.write((char*)&Hdr, sizeof(Hdr));
-
-#ifndef NDEBUG
-  // Save the starting position of the symbol tables data content.
-  unsigned startpos = ARFile.tellp();
-#endif
-
-  // Write out the symbols sequentially
-  for ( Archive::SymTabType::iterator I = symTab.begin(), E = symTab.end();
-        I != E; ++I)
-  {
-    // Write out the file index
-    writeInteger(I->second, ARFile);
-    // Write out the length of the symbol
-    writeInteger(I->first.length(), ARFile);
-    // Write out the symbol
-    ARFile.write(I->first.data(), I->first.length());
-  }
-
-#ifndef NDEBUG
-  // Now that we're done with the symbol table, get the ending file position
-  unsigned endpos = ARFile.tellp();
-#endif
-
-  // Make sure that the amount we wrote is what we pre-computed. This is
-  // critical for file integrity purposes.
-  assert(endpos - startpos == symTabSize && "Invalid symTabSize computation");
-
-  // Make sure the symbol table is even sized
-  if (symTabSize % 2 != 0 )
-    ARFile << ARFILE_PAD;
-}
-
-// Write the entire archive to the file specified when the archive was created.
-// This writes to a temporary file first. Options are for creating a symbol
-// table, flattening the file names (no directories, 15 chars max) and
-// compressing each archive member.
-bool
-Archive::writeToDisk(bool CreateSymbolTable, bool TruncateNames,
-                     std::string* ErrMsg)
-{
-  // Make sure they haven't opened up the file, not loaded it,
-  // but are now trying to write it which would wipe out the file.
-  if (members.empty() && mapfile && mapfile->getBufferSize() > 8) {
-    if (ErrMsg)
-      *ErrMsg = "Can't write an archive not opened for writing";
-    return true;
-  }
-
-  // Create a temporary file to store the archive in
-  sys::Path TmpArchive = archPath;
-  if (TmpArchive.createTemporaryFileOnDisk(ErrMsg))
-    return true;
-
-  // Make sure the temporary gets removed if we crash
-  sys::RemoveFileOnSignal(TmpArchive);
-
-  // Create archive file for output.
-  std::ios::openmode io_mode = std::ios::out | std::ios::trunc |
-                               std::ios::binary;
-  std::ofstream ArchiveFile(TmpArchive.c_str(), io_mode);
-
-  // Check for errors opening or creating archive file.
-  if (!ArchiveFile.is_open() || ArchiveFile.bad()) {
-    TmpArchive.eraseFromDisk();
-    if (ErrMsg)
-      *ErrMsg = "Error opening archive file: " + archPath.str();
-    return true;
-  }
-
-  // If we're creating a symbol table, reset it now
-  if (CreateSymbolTable) {
-    symTabSize = 0;
-    symTab.clear();
-  }
-
-  // Write magic string to archive.
-  ArchiveFile << ARFILE_MAGIC;
-
-  // Loop over all member files, and write them out. Note that this also
-  // builds the symbol table, symTab.
-  for (MembersList::iterator I = begin(), E = end(); I != E; ++I) {
-    if (writeMember(*I, ArchiveFile, CreateSymbolTable,
-                     TruncateNames, ErrMsg)) {
-      TmpArchive.eraseFromDisk();
-      ArchiveFile.close();
-      return true;
-    }
-  }
-
-  // Close archive file.
-  ArchiveFile.close();
-
-  // Write the symbol table
-  if (CreateSymbolTable) {
-    // At this point we have written a file that is a legal archive but it
-    // doesn't have a symbol table in it. To aid in faster reading and to
-    // ensure compatibility with other archivers we need to put the symbol
-    // table first in the file. Unfortunately, this means mapping the file
-    // we just wrote back in and copying it to the destination file.
-    sys::Path FinalFilePath = archPath;
-
-    // Map in the archive we just wrote.
-    {
-    OwningPtr<MemoryBuffer> arch;
-    if (error_code ec = MemoryBuffer::getFile(TmpArchive.c_str(), arch)) {
-      if (ErrMsg)
-        *ErrMsg = ec.message();
-      return true;
-    }
-    const char* base = arch->getBufferStart();
-
-    // Open another temporary file in order to avoid invalidating the
-    // mmapped data
-    if (FinalFilePath.createTemporaryFileOnDisk(ErrMsg))
-      return true;
-    sys::RemoveFileOnSignal(FinalFilePath);
-
-    std::ofstream FinalFile(FinalFilePath.c_str(), io_mode);
-    if (!FinalFile.is_open() || FinalFile.bad()) {
-      TmpArchive.eraseFromDisk();
-      if (ErrMsg)
-        *ErrMsg = "Error opening archive file: " + FinalFilePath.str();
-      return true;
-    }
-
-    // Write the file magic number
-    FinalFile << ARFILE_MAGIC;
-
-    // If there is a foreign symbol table, put it into the file now. Most
-    // ar(1) implementations require the symbol table to be first but llvm-ar
-    // can deal with it being after a foreign symbol table. This ensures
-    // compatibility with other ar(1) implementations as well as allowing the
-    // archive to store both native .o and LLVM .bc files, both indexed.
-    if (foreignST) {
-      if (writeMember(*foreignST, FinalFile, false, false, ErrMsg)) {
-        FinalFile.close();
-        TmpArchive.eraseFromDisk();
-        return true;
-      }
-    }
-
-    // Put out the LLVM symbol table now.
-    writeSymbolTable(FinalFile);
-
-    // Copy the temporary file contents being sure to skip the file's magic
-    // number.
-    FinalFile.write(base + sizeof(ARFILE_MAGIC)-1,
-      arch->getBufferSize()-sizeof(ARFILE_MAGIC)+1);
-
-    // Close up shop
-    FinalFile.close();
-    } // free arch.
-
-    // Move the final file over top of TmpArchive
-    if (FinalFilePath.renamePathOnDisk(TmpArchive, ErrMsg))
-      return true;
-  }
-
-  // Before we replace the actual archive, we need to forget all the
-  // members, since they point to data in that old archive. We need to do
-  // this because we cannot replace an open file on Windows.
-  cleanUpMemory();
-
-  if (TmpArchive.renamePathOnDisk(archPath, ErrMsg))
-    return true;
-
-  // Set correct read and write permissions after temporary file is moved
-  // to final destination path.
-  if (archPath.makeReadableOnDisk(ErrMsg))
-    return true;
-  if (archPath.makeWriteableOnDisk(ErrMsg))
-    return true;
-
-  return false;
-}