//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group 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.
//
//===----------------------------------------------------------------------===//
//
-// This file contains routines to handle linking together LLVM bytecode files,
+// This file contains routines to handle linking together LLVM bitcode files,
// and to handle annoying things like static libraries.
//
//===----------------------------------------------------------------------===//
#include "llvm/Linker.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/ADT/SetOperations.h"
-#include "llvm/Bytecode/Reader.h"
-#include "llvm/Bytecode/Archive.h"
-#include "llvm/Config/config.h"
+#include "llvm/Bitcode/Archive.h"
#include <memory>
#include <set>
using namespace llvm;
if (I->hasName()) {
if (I->isDeclaration())
UndefinedSymbols.insert(I->getName());
- else if (!I->hasInternalLinkage()) {
+ else if (!I->hasLocalLinkage()) {
assert(!I->hasDLLImportLinkage()
&& "Found dllimported non-external symbol!");
DefinedSymbols.insert(I->getName());
}
}
+
for (Module::global_iterator I = M->global_begin(), E = M->global_end();
I != E; ++I)
if (I->hasName()) {
if (I->isDeclaration())
UndefinedSymbols.insert(I->getName());
- else if (!I->hasInternalLinkage()) {
+ else if (!I->hasLocalLinkage()) {
assert(!I->hasDLLImportLinkage()
&& "Found dllimported non-external symbol!");
DefinedSymbols.insert(I->getName());
}
}
+ for (Module::alias_iterator I = M->alias_begin(), E = M->alias_end();
+ I != E; ++I)
+ if (I->hasName())
+ DefinedSymbols.insert(I->getName());
+
// Prune out any defined symbols from the undefined symbols set...
for (std::set<std::string>::iterator I = UndefinedSymbols.begin();
I != UndefinedSymbols.end(); )
/// TRUE - An error occurred.
/// FALSE - No errors.
bool
-Linker::LinkInArchive(const sys::Path &Filename) {
-
+Linker::LinkInArchive(const sys::Path &Filename, bool &is_native) {
// Make sure this is an archive file we're dealing with
if (!Filename.isArchive())
- return error("File '" + Filename.toString() + "' is not an archive.");
+ return error("File '" + Filename.str() + "' is not an archive.");
// Open the archive file
- verbose("Linking archive file '" + Filename.toString() + "'");
+ verbose("Linking archive file '" + Filename.str() + "'");
- // Find all of the symbols currently undefined in the bytecode program.
+ // Find all of the symbols currently undefined in the bitcode program.
// If all the symbols are defined, the program is complete, and there is
// no reason to link in any archive files.
std::set<std::string> UndefinedSymbols;
GetAllUndefinedSymbols(Composite, UndefinedSymbols);
if (UndefinedSymbols.empty()) {
- verbose("No symbols undefined, skipping library '" +
- Filename.toString() + "'");
+ verbose("No symbols undefined, skipping library '" + Filename.str() + "'");
return false; // No need to link anything in!
}
std::string ErrMsg;
std::auto_ptr<Archive> AutoArch (
- Archive::OpenAndLoadSymbols(Filename,&ErrMsg));
+ Archive::OpenAndLoadSymbols(Filename, Context, &ErrMsg));
Archive* arch = AutoArch.get();
if (!arch)
- return error("Cannot read archive '" + Filename.toString() +
+ return error("Cannot read archive '" + Filename.str() +
"': " + ErrMsg);
+ if (!arch->isBitcodeArchive()) {
+ is_native = true;
+ return false;
+ }
+ is_native = false;
// Save a set of symbols that are not defined by the archive. Since we're
// entering a loop, there's no point searching for these multiple times. This
do {
CurrentlyUndefinedSymbols = UndefinedSymbols;
- // Find the modules we need to link into the target module
- std::set<ModuleProvider*> Modules;
+ // Find the modules we need to link into the target module. Note that arch
+ // keeps ownership of these modules and may return the same Module* from a
+ // subsequent call.
+ SmallVector<Module*, 16> Modules;
if (!arch->findModulesDefiningSymbols(UndefinedSymbols, Modules, &ErrMsg))
- return error("Cannot find symbols in '" + Filename.toString() +
+ return error("Cannot find symbols in '" + Filename.str() +
"': " + ErrMsg);
// If we didn't find any more modules to link this time, we are done
NotDefinedByArchive.insert(UndefinedSymbols.begin(),
UndefinedSymbols.end());
- // Loop over all the ModuleProviders that we got back from the archive
- for (std::set<ModuleProvider*>::iterator I=Modules.begin(), E=Modules.end();
+ // Loop over all the Modules that we got back from the archive
+ for (SmallVectorImpl<Module*>::iterator I=Modules.begin(), E=Modules.end();
I != E; ++I) {
// Get the module we must link in.
std::string moduleErrorMsg;
- std::auto_ptr<Module> AutoModule((*I)->releaseModule( &moduleErrorMsg ));
- Module* aModule = AutoModule.get();
-
+ Module* aModule = *I;
if (aModule != NULL) {
+ if (aModule->MaterializeAll(&moduleErrorMsg))
+ return error("Could not load a module: " + moduleErrorMsg);
+
verbose(" Linking in module: " + aModule->getModuleIdentifier());
// Link it in
- if (LinkInModule(aModule, &moduleErrorMsg)) {
+ if (LinkInModule(aModule, &moduleErrorMsg))
return error("Cannot link in module '" +
aModule->getModuleIdentifier() + "': " + moduleErrorMsg);
- }
}
}
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