//
// 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.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/Linker.h"
#include "llvm/Module.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Bitcode/ReaderWriter.h"
using namespace llvm;
// Determine where this library lives.
sys::Path Pathname = FindLib(Lib);
if (Pathname.isEmpty())
- return warning("Cannot find library '" + Lib + "'");
+ return error("Cannot find library '" + Lib + "'");
// If its an archive, try to link it in
std::string Magic;
case sys::Bitcode_FileType:
// LLVM ".so" file.
if (LinkInFile(Pathname, is_native))
- return error("Cannot link file '" + Pathname.toString() + "'");
+ return true;
break;
case sys::Archive_FileType:
///
bool Linker::LinkInFile(const sys::Path &File, bool &is_native) {
is_native = false;
+
+ // Check for a file of name "-", which means "read standard input"
+ if (File.toString() == "-") {
+ std::auto_ptr<Module> M;
+ if (MemoryBuffer *Buffer = MemoryBuffer::getSTDIN()) {
+ M.reset(ParseBitcodeFile(Buffer, &Error));
+ delete Buffer;
+ if (M.get())
+ if (!LinkInModule(M.get(), &Error))
+ return false;
+ } else
+ Error = "standard input is empty";
+ return error("Cannot link stdin: " + Error);
+ }
+
// Make sure we can at least read the file
if (!File.canRead())
return error("Cannot find linker input '" + File.toString() + "'");
switch (sys::IdentifyFileType(Magic.c_str(), 64)) {
default: assert(0 && "Bad file type identification");
case sys::Unknown_FileType:
- return warning("Supposed object file '" + File.toString() +
- "' not recognized as such");
+ return warning("Ignoring file '" + File.toString() +
+ "' because does not contain bitcode.");
case sys::Archive_FileType:
// A user may specify an ar archive without -l, perhaps because it
// is not installed as a library. Detect that and link the archive.
verbose("Linking archive file '" + File.toString() + "'");
if (LinkInArchive(File, is_native))
- return error("Cannot link archive '" + File.toString() + "'");
+ return true;
break;
case sys::Bitcode_FileType: {
verbose("Linking bitcode file '" + File.toString() + "'");
std::auto_ptr<Module> M(LoadObject(File));
if (M.get() == 0)
- return error("Cannot load file '" + File.toString() + "'" + Error);
- if (LinkInModule(M.get()))
- return error("Cannot link file '" + File.toString() + "'" + Error);
+ return error("Cannot load file '" + File.toString() + "': " + Error);
+ if (LinkInModule(M.get(), &Error))
+ return error("Cannot link file '" + File.toString() + "': " + Error);
verbose("Linked in file '" + File.toString() + "'");
break;