#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Type.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/ExecutionEngine/Interpreter.h"
#include "llvm/ExecutionEngine/JIT.h"
#include "llvm/ExecutionEngine/JITEventListener.h"
+#include "llvm/ExecutionEngine/JITMemoryManager.h"
+#include "llvm/ExecutionEngine/MCJIT.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/IRReader.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Process.h"
-#include "llvm/System/Signals.h"
-#include "llvm/Target/TargetSelect.h"
+#include "llvm/Support/Process.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetSelect.h"
#include <cerrno>
+
+#ifdef __CYGWIN__
+#include <cygwin/version.h>
+#if defined(CYGWIN_VERSION_DLL_MAJOR) && CYGWIN_VERSION_DLL_MAJOR<1007
+#define DO_NOTHING_ATEXIT 1
+#endif
+#endif
+
using namespace llvm;
namespace {
cl::desc("Force interpretation: disable JIT"),
cl::init(false));
+ cl::opt<bool> UseMCJIT(
+ "use-mcjit", cl::desc("Enable use of the MC-based JIT (if available)"),
+ cl::init(false));
+
// Determine optimization level.
cl::opt<char>
OptLevel("O",
"of the executable"),
cl::value_desc("function"),
cl::init("main"));
-
+
cl::opt<std::string>
FakeArgv0("fake-argv0",
cl::desc("Override the 'argv[0]' value passed into the executing"
" program"), cl::value_desc("executable"));
-
+
cl::opt<bool>
DisableCoreFiles("disable-core-files", cl::Hidden,
cl::desc("Disable emission of core files if possible"));
NoLazyCompilation("disable-lazy-compilation",
cl::desc("Disable JIT lazy compilation"),
cl::init(false));
+
+ cl::opt<Reloc::Model>
+ RelocModel("relocation-model",
+ cl::desc("Choose relocation model"),
+ cl::init(Reloc::Default),
+ cl::values(
+ clEnumValN(Reloc::Default, "default",
+ "Target default relocation model"),
+ clEnumValN(Reloc::Static, "static",
+ "Non-relocatable code"),
+ clEnumValN(Reloc::PIC_, "pic",
+ "Fully relocatable, position independent code"),
+ clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
+ "Relocatable external references, non-relocatable code"),
+ clEnumValEnd));
+
+ cl::opt<llvm::CodeModel::Model>
+ CMModel("code-model",
+ cl::desc("Choose code model"),
+ cl::init(CodeModel::JITDefault),
+ cl::values(clEnumValN(CodeModel::JITDefault, "default",
+ "Target default JIT code model"),
+ clEnumValN(CodeModel::Small, "small",
+ "Small code model"),
+ clEnumValN(CodeModel::Kernel, "kernel",
+ "Kernel code model"),
+ clEnumValN(CodeModel::Medium, "medium",
+ "Medium code model"),
+ clEnumValN(CodeModel::Large, "large",
+ "Large code model"),
+ clEnumValEnd));
+
}
static ExecutionEngine *EE = 0;
static void do_shutdown() {
+ // Cygwin-1.5 invokes DLL's dtors before atexit handler.
+#ifndef DO_NOTHING_ATEXIT
delete EE;
llvm_shutdown();
+#endif
}
//===----------------------------------------------------------------------===//
int main(int argc, char **argv, char * const *envp) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
-
+
LLVMContext &Context = getGlobalContext();
atexit(do_shutdown); // Call llvm_shutdown() on exit.
// If we have a native target, initialize it to ensure it is linked in and
// usable by the JIT.
InitializeNativeTarget();
+ InitializeNativeTargetAsmPrinter();
cl::ParseCommandLineOptions(argc, argv,
"llvm interpreter & dynamic compiler\n");
// If the user doesn't want core files, disable them.
if (DisableCoreFiles)
sys::Process::PreventCoreFiles();
-
+
// Load the bitcode...
- std::string ErrorMsg;
- Module *Mod = NULL;
- if (MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFile,&ErrorMsg)){
- Mod = getLazyBitcodeModule(Buffer, Context, &ErrorMsg);
- if (!Mod) delete Buffer;
- }
-
+ SMDiagnostic Err;
+ Module *Mod = ParseIRFile(InputFile, Err, Context);
if (!Mod) {
- errs() << argv[0] << ": error loading program '" << InputFile << "': "
- << ErrorMsg << "\n";
- exit(1);
+ Err.print(argv[0], errs());
+ return 1;
}
// If not jitting lazily, load the whole bitcode file eagerly too.
+ std::string ErrorMsg;
if (NoLazyCompilation) {
if (Mod->MaterializeAllPermanently(&ErrorMsg)) {
errs() << argv[0] << ": bitcode didn't read correctly.\n";
builder.setMArch(MArch);
builder.setMCPU(MCPU);
builder.setMAttrs(MAttrs);
+ builder.setRelocationModel(RelocModel);
+ builder.setCodeModel(CMModel);
builder.setErrorStr(&ErrorMsg);
+ builder.setJITMemoryManager(ForceInterpreter ? 0 :
+ JITMemoryManager::CreateDefaultMemManager());
builder.setEngineKind(ForceInterpreter
? EngineKind::Interpreter
: EngineKind::JIT);
// If we are supposed to override the target triple, do so now.
if (!TargetTriple.empty())
- Mod->setTargetTriple(TargetTriple);
+ Mod->setTargetTriple(Triple::normalize(TargetTriple));
+
+ // Enable MCJIT if desired.
+ if (UseMCJIT && !ForceInterpreter) {
+ builder.setUseMCJIT(true);
+ builder.setJITMemoryManager(JITMemoryManager::CreateDefaultMemManager());
+ }
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
switch (OptLevel) {
exit(1);
}
- EE->RegisterJITEventListener(createOProfileJITEventListener());
+ // The following functions have no effect if their respective profiling
+ // support wasn't enabled in the build configuration.
+ EE->RegisterJITEventListener(
+ JITEventListener::createOProfileJITEventListener());
+ EE->RegisterJITEventListener(
+ JITEventListener::createIntelJITEventListener());
EE->DisableLazyCompilation(NoLazyCompilation);
return -1;
}
- // If the program doesn't explicitly call exit, we will need the Exit
- // function later on to make an explicit call, so get the function now.
+ // If the program doesn't explicitly call exit, we will need the Exit
+ // function later on to make an explicit call, so get the function now.
Constant *Exit = Mod->getOrInsertFunction("exit", Type::getVoidTy(Context),
Type::getInt32Ty(Context),
NULL);
-
+
// Reset errno to zero on entry to main.
errno = 0;
-
+
// Run static constructors.
EE->runStaticConstructorsDestructors(false);
// Run static destructors.
EE->runStaticConstructorsDestructors(true);
-
- // If the program didn't call exit explicitly, we should call it now.
+
+ // If the program didn't call exit explicitly, we should call it now.
// This ensures that any atexit handlers get called correctly.
if (Function *ExitF = dyn_cast<Function>(Exit)) {
std::vector<GenericValue> Args;
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