//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Reid Spencer and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// 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 bytecode.
+// Builds up an LLVM archive file (.a) containing LLVM bitcode.
//
//===----------------------------------------------------------------------===//
#include "ArchiveInternals.h"
-#include "llvm/Bytecode/Reader.h"
-#include "llvm/Support/Compressor.h"
+#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/System/Signals.h"
#include "llvm/System/Process.h"
+#include "llvm/ModuleProvider.h"
#include <fstream>
-#include <iostream>
+#include <ostream>
#include <iomanip>
-
using namespace llvm;
// Write an integer using variable bit rate encoding. This saves a few bytes
// 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<<14) {
if (num < 1<<7)
return 1;
else
return 2;
+ }
if (num < 1<<21)
return 3;
bool
Archive::addFileBefore(const sys::Path& filePath, iterator where,
std::string* ErrMsg) {
- assert(filePath.exists() && "Can't add a non-existent file");
+ if (!filePath.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;
- if (mbr->path.getFileStatus(mbr->info, ErrMsg))
+ const sys::FileStatus *FSInfo = mbr->path.getFileStatus(false, ErrMsg);
+ if (FSInfo)
+ mbr->info = *FSInfo;
+ else
return true;
unsigned flags = 0;
std::string magic;
mbr->path.getMagicNumber(magic,4);
switch (sys::IdentifyFileType(magic.c_str(),4)) {
- case sys::BytecodeFileType:
- flags |= ArchiveMember::BytecodeFlag;
- break;
- case sys::CompressedBytecodeFileType:
- flags |= ArchiveMember::CompressedBytecodeFlag;
+ case sys::Bitcode_FileType:
+ flags |= ArchiveMember::BitcodeFlag;
break;
default:
break;
}
// Now that we have the data in memory, update the
- // symbol table if its a bytecode file.
- if (CreateSymbolTable &&
- (member.isBytecode() || member.isCompressedBytecode())) {
+ // symbol table if its a bitcode file.
+ if (CreateSymbolTable && member.isBitcode()) {
std::vector<std::string> symbols;
std::string FullMemberName = archPath.toString() + "(" +
member.getPath().toString()
+ ")";
- ModuleProvider* MP = GetBytecodeSymbols(
- (const unsigned char*)data,fSize,FullMemberName, symbols);
+ ModuleProvider* MP =
+ GetBitcodeSymbols((const unsigned char*)data,fSize,
+ FullMemberName, symbols, ErrMsg);
- // If the bytecode parsed successfully
+ // If the bitcode parsed successfully
if ( MP ) {
for (std::vector<std::string>::iterator SI = symbols.begin(),
SE = symbols.end(); SI != SE; ++SI) {
delete mFile;
}
if (ErrMsg)
- *ErrMsg = "Can't parse bytecode member: " + member.getPath().toString();
+ *ErrMsg = "Can't parse bitcode member: " + member.getPath().toString()
+ + ": " + *ErrMsg;
return true;
}
}
- // Determine if we actually should compress this member
- bool willCompress =
- (ShouldCompress &&
- !member.isCompressed() &&
- !member.isCompressedBytecode() &&
- !member.isLLVMSymbolTable() &&
- !member.isSVR4SymbolTable() &&
- !member.isBSD4SymbolTable());
-
- // Perform the compression. Note that if the file is uncompressed bytecode
- // then we turn the file into compressed bytecode rather than treating it as
- // compressed data. This is necessary since it allows us to determine that the
- // file contains bytecode instead of looking like a regular compressed data
- // member. A compressed bytecode file has its content compressed but has a
- // magic number of "llvc". This acounts for the +/-4 arithmetic in the code
- // below.
- int hdrSize;
- if (willCompress) {
- char* output = 0;
- if (member.isBytecode()) {
- data +=4;
- fSize -= 4;
- }
- fSize = Compressor::compressToNewBuffer(data,fSize,output,ErrMsg);
- if (fSize == 0)
- return true;
- data = output;
- if (member.isBytecode())
- hdrSize = -fSize-4;
- else
- hdrSize = -fSize;
- } else {
- hdrSize = fSize;
- }
+ int hdrSize = fSize;
// Compute the fields of the header
ArchiveMemberHeader Hdr;
member.getPath().toString().length());
}
- // Make sure we write the compressed bytecode magic number if we should.
- if (willCompress && member.isBytecode())
- ARFile.write("llvc",4);
-
// Write the (possibly compressed) member's content to the file.
ARFile.write(data,fSize);
if ((ARFile.tellp() & 1) == 1)
ARFile << ARFILE_PAD;
- // Free the compressed data, if necessary
- if (willCompress) {
- free((void*)data);
- }
-
// Close the mapped file if it was opened
if (mFile != 0) {
mFile->close();
{
// 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.
- assert(!(members.empty() && mapfile->size() > 8) &&
- "Can't write an archive not opened for writing");
+ if (members.empty() && mapfile && mapfile->size() > 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;
projects / oota-llvm.git / blobdiff