#include "llvm/ExecutionEngine/JITMemoryManager.h"
#include "llvm/ExecutionEngine/MCJIT.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
+#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
+#include "llvm/IR/TypeBuilder.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#endif
}
+// On Mingw and Cygwin, an external symbol named '__main' is called from the
+// generated 'main' function to allow static intialization. To avoid linking
+// problems with remote targets (because lli's remote target support does not
+// currently handle external linking) we add a secondary module which defines
+// an empty '__main' function.
+static void addCygMingExtraModule(ExecutionEngine *EE,
+ LLVMContext &Context,
+ StringRef TargetTripleStr) {
+ IRBuilder<> Builder(Context);
+ Triple TargetTriple(TargetTripleStr);
+
+ // Create a new module.
+ Module *M = new Module("CygMingHelper", Context);
+ M->setTargetTriple(TargetTripleStr);
+
+ // Create an empty function named "__main".
+ Function *Result;
+ if (TargetTriple.isArch64Bit()) {
+ Result = Function::Create(
+ TypeBuilder<int64_t(void), false>::get(Context),
+ GlobalValue::ExternalLinkage, "__main", M);
+ } else {
+ Result = Function::Create(
+ TypeBuilder<int32_t(void), false>::get(Context),
+ GlobalValue::ExternalLinkage, "__main", M);
+ }
+ BasicBlock *BB = BasicBlock::Create(Context, "__main", Result);
+ Builder.SetInsertPoint(BB);
+ Value *ReturnVal;
+ if (TargetTriple.isArch64Bit())
+ ReturnVal = ConstantInt::get(Context, APInt(64, 0));
+ else
+ ReturnVal = ConstantInt::get(Context, APInt(32, 0));
+ Builder.CreateRet(ReturnVal);
+
+ // Add this new module to the ExecutionEngine.
+ EE->addModule(M);
+}
+
+
//===----------------------------------------------------------------------===//
// main Driver function
//
EE->addModule(XMod);
}
+ // If the target is Cygwin/MingW and we are generating remote code, we
+ // need an extra module to help out with linking.
+ if (RemoteMCJIT && Triple(Mod->getTargetTriple()).isOSCygMing()) {
+ addCygMingExtraModule(EE, Context, Mod->getTargetTriple());
+ }
+
// The following functions have no effect if their respective profiling
// support wasn't enabled in the build configuration.
EE->RegisterJITEventListener(
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