#include "llvm/Linker.h"
#include "llvm/Module.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/System/Path.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-
using namespace llvm;
// LinkItems - This function is the main entry point into linking. It takes a
/// LinkInLibrary - links one library into the HeadModule.
///
-bool Linker::LinkInLibrary(const std::string& Lib, bool& is_native) {
+bool Linker::LinkInLibrary(StringRef Lib, bool& is_native) {
is_native = false;
// Determine where this library lives.
sys::Path Pathname = FindLib(Lib);
if (Pathname.isEmpty())
- return error("Cannot find library '" + Lib + "'");
+ return error("Cannot find library '" + Lib.str() + "'");
// If its an archive, try to link it in
std::string Magic;
switch (sys::IdentifyFileType(Magic.c_str(), 64)) {
default: llvm_unreachable("Bad file type identification");
case sys::Unknown_FileType:
- return warning("Supposed library '" + Lib + "' isn't a library.");
+ return warning("Supposed library '" + Lib.str() + "' isn't a library.");
case sys::Bitcode_FileType:
// LLVM ".so" file.
case sys::Archive_FileType:
if (LinkInArchive(Pathname, is_native))
- return error("Cannot link archive '" + Pathname.toString() + "'");
+ return error("Cannot link archive '" + Pathname.str() + "'");
break;
case sys::ELF_Relocatable_FileType:
is_native = false;
// Check for a file of name "-", which means "read standard input"
- if (File.toString() == "-") {
+ if (File.str() == "-") {
std::auto_ptr<Module> M;
- if (MemoryBuffer *Buffer = MemoryBuffer::getSTDIN()) {
- M.reset(ParseBitcodeFile(Buffer, Context, &Error));
- delete Buffer;
- if (M.get())
- if (!LinkInModule(M.get(), &Error))
- return false;
- } else
- Error = "standard input is empty";
+ if (MemoryBuffer *Buffer = MemoryBuffer::getSTDIN(&Error)) {
+ if (!Buffer->getBufferSize()) {
+ delete Buffer;
+ Error = "standard input is empty";
+ } else {
+ M.reset(ParseBitcodeFile(Buffer, Context, &Error));
+ delete Buffer;
+ if (M.get())
+ if (!LinkInModule(M.get(), &Error))
+ return false;
+ }
+ }
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() + "'");
-
- // If its an archive, try to link it in
+ // Determine what variety of file it is.
std::string Magic;
- File.getMagicNumber(Magic, 64);
+ if (!File.getMagicNumber(Magic, 64))
+ return error("Cannot find linker input '" + File.str() + "'");
+
switch (sys::IdentifyFileType(Magic.c_str(), 64)) {
default: llvm_unreachable("Bad file type identification");
case sys::Unknown_FileType:
- return warning("Ignoring file '" + File.toString() +
+ return warning("Ignoring file '" + File.str() +
"' 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 true;
break;
case sys::Bitcode_FileType: {
- verbose("Linking bitcode file '" + File.toString() + "'");
+ verbose("Linking bitcode file '" + File.str() + "'");
std::auto_ptr<Module> M(LoadObject(File));
if (M.get() == 0)
- return error("Cannot load file '" + File.toString() + "': " + Error);
+ return error("Cannot load file '" + File.str() + "': " + Error);
if (LinkInModule(M.get(), &Error))
- return error("Cannot link file '" + File.toString() + "': " + Error);
+ return error("Cannot link file '" + File.str() + "': " + Error);
- verbose("Linked in file '" + File.toString() + "'");
+ verbose("Linked in file '" + File.str() + "'");
break;
}