#include "Interpreter.h"
#include "ExecutionAnnotations.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/Function.h"
#include "llvm/iPHINode.h"
#include "llvm/iOther.h"
#include "llvm/iTerminators.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Constants.h"
#include "llvm/Assembly/Writer.h"
-#include "llvm/Target/TargetData.h"
#include "Support/CommandLine.h"
#include "Support/Statistic.h"
#include <math.h> // For fmod
using std::cout;
using std::cerr;
+Interpreter *TheEE = 0;
+
namespace {
Statistic<> NumDynamicInsts("lli", "Number of dynamic instructions executed");
cl::opt<bool>
- QuietMode("quiet", cl::desc("Do not emit any non-program output"));
+ QuietMode("quiet", cl::desc("Do not emit any non-program output"),
+ cl::init(true));
cl::alias
QuietModeA("q", cl::desc("Alias for -quiet"), cl::aliasopt(QuietMode));
// Create a TargetData structure to handle memory addressing and size/alignment
// computations
//
-TargetData TD("lli Interpreter");
CachedWriter CW; // Object to accelerate printing of LLVM
-
#ifdef PROFILE_STRUCTURE_FIELDS
static cl::opt<bool>
ProfileStructureFields("profilestructfields",
return SN->SlotNum;
}
-#define GET_CONST_VAL(TY, CLASS) \
- case Type::TY##TyID: Result.TY##Val = cast<CLASS>(C)->getValue(); break
-
// Operations used by constant expr implementations...
static GenericValue executeCastOperation(Value *Src, const Type *DestTy,
ExecutionContext &SF);
-static GenericValue executeGEPOperation(Value *Src, User::op_iterator IdxBegin,
- User::op_iterator IdxEnd,
- ExecutionContext &SF);
static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
const Type *Ty, ExecutionContext &SF);
-static GenericValue getConstantValue(const Constant *C) {
- GenericValue Result;
- switch (C->getType()->getPrimitiveID()) {
- GET_CONST_VAL(Bool , ConstantBool);
- GET_CONST_VAL(UByte , ConstantUInt);
- GET_CONST_VAL(SByte , ConstantSInt);
- GET_CONST_VAL(UShort , ConstantUInt);
- GET_CONST_VAL(Short , ConstantSInt);
- GET_CONST_VAL(UInt , ConstantUInt);
- GET_CONST_VAL(Int , ConstantSInt);
- GET_CONST_VAL(ULong , ConstantUInt);
- GET_CONST_VAL(Long , ConstantSInt);
- GET_CONST_VAL(Float , ConstantFP);
- GET_CONST_VAL(Double , ConstantFP);
- case Type::PointerTyID:
- if (isa<ConstantPointerNull>(C)) {
- Result.PointerVal = 0;
- } else if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(C)){
- GlobalAddress *Address =
- (GlobalAddress*)CPR->getValue()->getOrCreateAnnotation(GlobalAddressAID);
- Result.PointerVal = (PointerTy)Address->Ptr;
- } else {
- assert(0 && "Unknown constant pointer type!");
- }
- break;
- default:
- cout << "ERROR: Constant unimp for type: " << C->getType() << "\n";
- }
- return Result;
-}
static GenericValue getOperandValue(Value *V, ExecutionContext &SF) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
case Instruction::Cast:
return executeCastOperation(CE->getOperand(0), CE->getType(), SF);
case Instruction::GetElementPtr:
- return executeGEPOperation(CE->getOperand(0), CE->op_begin()+1,
- CE->op_end(), SF);
+ return TheEE->executeGEPOperation(CE->getOperand(0), CE->op_begin()+1,
+ CE->op_end(), SF);
case Instruction::Add:
return executeAddInst(getOperandValue(CE->getOperand(0), SF),
getOperandValue(CE->getOperand(1), SF),
{ GenericValue V; return V; }
}
} else if (Constant *CPV = dyn_cast<Constant>(V)) {
- return getConstantValue(CPV);
+ return TheEE->getConstantValue(CPV);
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
- GlobalAddress *Address =
- (GlobalAddress*)GV->getOrCreateAnnotation(GlobalAddressAID);
- GenericValue Result;
- Result.PointerVal = (PointerTy)(GenericValue*)Address->Ptr;
- return Result;
+ return PTOGV(TheEE->getPointerToGlobal(GV));
} else {
unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
unsigned OpSlot = getOperandSlot(V);
//===----------------------------------------------------------------------===//
void Interpreter::initializeExecutionEngine() {
+ TheEE = this;
AnnotationManager::registerAnnotationFactory(MethodInfoAID,
&MethodInfo::Create);
- AnnotationManager::registerAnnotationFactory(GlobalAddressAID,
- &GlobalAddress::Create);
initializeSignalHandlers();
}
-static void StoreValueToMemory(GenericValue Val, GenericValue *Ptr,
- const Type *Ty);
-
-// InitializeMemory - Recursive function to apply a Constant value into the
-// specified memory location...
-//
-static void InitializeMemory(const Constant *Init, char *Addr) {
-
- if (Init->getType()->isFirstClassType()) {
- GenericValue Val = getConstantValue(Init);
- StoreValueToMemory(Val, (GenericValue*)Addr, Init->getType());
- return;
- }
-
- switch (Init->getType()->getPrimitiveID()) {
- case Type::ArrayTyID: {
- const ConstantArray *CPA = cast<ConstantArray>(Init);
- const vector<Use> &Val = CPA->getValues();
- unsigned ElementSize =
- TD.getTypeSize(cast<ArrayType>(CPA->getType())->getElementType());
- for (unsigned i = 0; i < Val.size(); ++i)
- InitializeMemory(cast<Constant>(Val[i].get()), Addr+i*ElementSize);
- return;
- }
-
- case Type::StructTyID: {
- const ConstantStruct *CPS = cast<ConstantStruct>(Init);
- const StructLayout *SL=TD.getStructLayout(cast<StructType>(CPS->getType()));
- const vector<Use> &Val = CPS->getValues();
- for (unsigned i = 0; i < Val.size(); ++i)
- InitializeMemory(cast<Constant>(Val[i].get()),
- Addr+SL->MemberOffsets[i]);
- return;
- }
-
- default:
- CW << "Bad Type: " << Init->getType() << "\n";
- assert(0 && "Unknown constant type to initialize memory with!");
- }
-}
-
-Annotation *GlobalAddress::Create(AnnotationID AID, const Annotable *O, void *){
- assert(AID == GlobalAddressAID);
-
- // This annotation will only be created on GlobalValue objects...
- GlobalValue *GVal = cast<GlobalValue>((Value*)O);
-
- if (isa<Function>(GVal)) {
- // The GlobalAddress object for a function is just a pointer to function
- // itself. Don't delete it when the annotation is gone though!
- return new GlobalAddress(GVal, false);
- }
-
- // Handle the case of a global variable...
- assert(isa<GlobalVariable>(GVal) &&
- "Global value found that isn't a function or global variable!");
- GlobalVariable *GV = cast<GlobalVariable>(GVal);
-
- // First off, we must allocate space for the global variable to point at...
- const Type *Ty = GV->getType()->getElementType(); // Type to be allocated
-
- // Allocate enough memory to hold the type...
- void *Addr = calloc(1, TD.getTypeSize(Ty));
- assert(Addr != 0 && "Null pointer returned by malloc!");
-
- // Initialize the memory if there is an initializer...
- if (GV->hasInitializer())
- InitializeMemory(GV->getInitializer(), (char*)Addr);
-
- return new GlobalAddress(Addr, true); // Simply invoke the ctor
-}
-
//===----------------------------------------------------------------------===//
// Binary Instruction Implementations
//===----------------------------------------------------------------------===//
// FIXME: Don't use CALLOC, use a tainted malloc.
void *Memory = calloc(NumElements, TD.getTypeSize(Ty));
- GenericValue Result;
- Result.PointerVal = (PointerTy)Memory;
+ GenericValue Result = PTOGV(Memory);
assert(Result.PointerVal != 0 && "Null pointer returned by malloc!");
SetValue(&I, Result, SF);
assert(isa<PointerType>(I.getOperand(0)->getType()) && "Freeing nonptr?");
GenericValue Value = getOperandValue(I.getOperand(0), SF);
// TODO: Check to make sure memory is allocated
- free((void*)Value.PointerVal); // Free memory
+ free(GVTOP(Value)); // Free memory
}
// getElementOffset - The workhorse for getelementptr.
//
-static GenericValue executeGEPOperation(Value *Ptr, User::op_iterator I,
- User::op_iterator E,
- ExecutionContext &SF) {
+GenericValue Interpreter::executeGEPOperation(Value *Ptr, User::op_iterator I,
+ User::op_iterator E,
+ ExecutionContext &SF) {
assert(isa<PointerType>(Ptr->getType()) &&
"Cannot getElementOffset of a nonpointer type!");
}
static void executeGEPInst(GetElementPtrInst &I, ExecutionContext &SF) {
- SetValue(&I, executeGEPOperation(I.getPointerOperand(),
+ SetValue(&I, TheEE->executeGEPOperation(I.getPointerOperand(),
I.idx_begin(), I.idx_end(), SF), SF);
}
-static void executeLoadInst(LoadInst &I, ExecutionContext &SF) {
+void Interpreter::executeLoadInst(LoadInst &I, ExecutionContext &SF) {
GenericValue SRC = getOperandValue(I.getPointerOperand(), SF);
- GenericValue *Ptr = (GenericValue*)SRC.PointerVal;
+ GenericValue *Ptr = (GenericValue*)GVTOP(SRC);
GenericValue Result;
if (TD.isLittleEndian()) {
SetValue(&I, Result, SF);
}
-static void StoreValueToMemory(GenericValue Val, GenericValue *Ptr,
- const Type *Ty) {
- if (TD.isLittleEndian()) {
- switch (Ty->getPrimitiveID()) {
- case Type::BoolTyID:
- case Type::UByteTyID:
- case Type::SByteTyID: Ptr->Untyped[0] = Val.UByteVal; break;
- case Type::UShortTyID:
- case Type::ShortTyID: Ptr->Untyped[0] = Val.UShortVal & 255;
- Ptr->Untyped[1] = (Val.UShortVal >> 8) & 255;
- break;
- case Type::FloatTyID:
- case Type::UIntTyID:
- case Type::IntTyID: Ptr->Untyped[0] = Val.UIntVal & 255;
- Ptr->Untyped[1] = (Val.UIntVal >> 8) & 255;
- Ptr->Untyped[2] = (Val.UIntVal >> 16) & 255;
- Ptr->Untyped[3] = (Val.UIntVal >> 24) & 255;
- break;
- case Type::DoubleTyID:
- case Type::ULongTyID:
- case Type::LongTyID:
- case Type::PointerTyID: Ptr->Untyped[0] = Val.ULongVal & 255;
- Ptr->Untyped[1] = (Val.ULongVal >> 8) & 255;
- Ptr->Untyped[2] = (Val.ULongVal >> 16) & 255;
- Ptr->Untyped[3] = (Val.ULongVal >> 24) & 255;
- Ptr->Untyped[4] = (Val.ULongVal >> 32) & 255;
- Ptr->Untyped[5] = (Val.ULongVal >> 40) & 255;
- Ptr->Untyped[6] = (Val.ULongVal >> 48) & 255;
- Ptr->Untyped[7] = (Val.ULongVal >> 56) & 255;
- break;
- default:
- cout << "Cannot store value of type " << Ty << "!\n";
- }
- } else {
- switch (Ty->getPrimitiveID()) {
- case Type::BoolTyID:
- case Type::UByteTyID:
- case Type::SByteTyID: Ptr->Untyped[0] = Val.UByteVal; break;
- case Type::UShortTyID:
- case Type::ShortTyID: Ptr->Untyped[1] = Val.UShortVal & 255;
- Ptr->Untyped[0] = (Val.UShortVal >> 8) & 255;
- break;
- case Type::FloatTyID:
- case Type::UIntTyID:
- case Type::IntTyID: Ptr->Untyped[3] = Val.UIntVal & 255;
- Ptr->Untyped[2] = (Val.UIntVal >> 8) & 255;
- Ptr->Untyped[1] = (Val.UIntVal >> 16) & 255;
- Ptr->Untyped[0] = (Val.UIntVal >> 24) & 255;
- break;
- case Type::DoubleTyID:
- case Type::ULongTyID:
- case Type::LongTyID:
- case Type::PointerTyID: Ptr->Untyped[7] = Val.ULongVal & 255;
- Ptr->Untyped[6] = (Val.ULongVal >> 8) & 255;
- Ptr->Untyped[5] = (Val.ULongVal >> 16) & 255;
- Ptr->Untyped[4] = (Val.ULongVal >> 24) & 255;
- Ptr->Untyped[3] = (Val.ULongVal >> 32) & 255;
- Ptr->Untyped[2] = (Val.ULongVal >> 40) & 255;
- Ptr->Untyped[1] = (Val.ULongVal >> 48) & 255;
- Ptr->Untyped[0] = (Val.ULongVal >> 56) & 255;
- break;
- default:
- cout << "Cannot store value of type " << Ty << "!\n";
- }
- }
-}
-
-static void executeStoreInst(StoreInst &I, ExecutionContext &SF) {
+void Interpreter::executeStoreInst(StoreInst &I, ExecutionContext &SF) {
GenericValue Val = getOperandValue(I.getOperand(0), SF);
GenericValue SRC = getOperandValue(I.getPointerOperand(), SF);
- StoreValueToMemory(Val, (GenericValue *)SRC.PointerVal,
+ StoreValueToMemory(Val, (GenericValue *)GVTOP(SRC),
I.getOperand(0)->getType());
}
-GenericValue Interpreter::CreateArgv(const std::vector<std::string> &InputArgv){
- // Pointers are 64 bits...
- PointerTy *Result = new PointerTy[InputArgv.size()+1]; // 64 bit assumption
-
- for (unsigned i = 0; i < InputArgv.size(); ++i) {
- unsigned Size = InputArgv[i].size()+1;
- char *Dest = new char[Size];
- copy(InputArgv[i].begin(), InputArgv[i].end(), Dest);
- Dest[Size-1] = 0;
-
- GenericValue GV; GV.PointerVal = (PointerTy)Dest;
- // Endian safe: Result[i] = (PointerTy)Dest;
- StoreValueToMemory(GV, (GenericValue*)(Result+i),
- Type::LongTy); // 64 bit assumption
- }
-
- Result[InputArgv.size()] = 0;
- GenericValue GV; GV.PointerVal = (PointerTy)Result;
- return GV;
-}
-
//===----------------------------------------------------------------------===//
// Miscellaneous Instruction Implementations
// and treat it as a function pointer.
GenericValue SRC = getOperandValue(I.getCalledValue(), SF);
- callMethod((Function*)SRC.PointerVal, ArgVals);
+ callMethod((Function*)GVTOP(SRC), ArgVals);
}
static void executePHINode(PHINode &I, ExecutionContext &SF) {
case Type::ULongTyID: cout << (unsigned long)V.ULongVal; break;
case Type::FloatTyID: cout << V.FloatVal; break;
case Type::DoubleTyID: cout << V.DoubleVal; break;
- case Type::PointerTyID:cout << (void*)V.PointerVal; break;
+ case Type::PointerTyID:cout << (void*)GVTOP(V); break;
default:
cout << "- Don't know how to print value of this type!";
break;
// Just use an Annotation directly, Breakpoint is currently just a marker
-//===----------------------------------------------------------------------===//
-// Support for the GlobalAddress annotation
-//===----------------------------------------------------------------------===//
-
-// This annotation (attached only to GlobalValue objects) is used to hold the
-// address of the chunk of memory that represents a global value. For
-// Functions, this pointer is the Function object pointer that represents it.
-// For global variables, this is the dynamically allocated (and potentially
-// initialized) chunk of memory for the global. This annotation is created on
-// demand.
-//
-static AnnotationID GlobalAddressAID(
- AnnotationManager::getID("Interpreter::GlobalAddress"));
-
-struct GlobalAddress : public Annotation {
- void *Ptr; // The pointer itself
- bool Delete; // Should I delete them memory on destruction?
-
- GlobalAddress(void *ptr, bool d) : Annotation(GlobalAddressAID), Ptr(ptr),
- Delete(d) {}
- ~GlobalAddress() { if (Delete) free(Ptr); }
-
- // Create - Factory function to allow GlobalAddress annotations to be
- // created on demand.
- //
- static Annotation *Create(AnnotationID AID, const Annotable *O, void *);
-};
-
#endif
#include "Interpreter.h"
#include "ExecutionAnnotations.h"
+#include "llvm/Module.h"
#include "llvm/DerivedTypes.h"
#include "llvm/SymbolTable.h"
#include "llvm/Target/TargetData.h"
using std::vector;
using std::cout;
-extern TargetData TD;
-
typedef GenericValue (*ExFunc)(FunctionType *, const vector<GenericValue> &);
static std::map<const Function *, ExFunc> Functions;
static std::map<std::string, ExFunc> FuncNames;
static PointerTy IOBBase = 0;
static unsigned FILESize;
- if (LastMod != TheInterpreter->getModule()) { // Module change or initialize?
- Module *M = LastMod = TheInterpreter->getModule();
+ if (LastMod != &TheInterpreter->getModule()) { // Module change or initialize?
+ Module *M = LastMod = &TheInterpreter->getModule();
// Check to see if the currently loaded module contains an __iob symbol...
GlobalVariable *IOB = 0;
if (IOB) break;
}
+#if 0 /// FIXME! __iob support for LLI
// If we found an __iob symbol now, find out what the actual address it's
// held in is...
if (IOB) {
else
FILESize = 16*8; // Default size
}
+#endif
}
// Check to see if this is a reference to __iob...
// Uncomment this line to enable profiling of structure field accesses.
//#define PROFILE_STRUCTURE_FIELDS 1
-#include "llvm/Module.h"
+#include "../ExecutionEngine.h"
#include "Support/DataTypes.h"
#include "llvm/Assembly/CachedWriter.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/BasicBlock.h"
+#include "../GenericValue.h"
-extern CachedWriter CW; // Object to accellerate printing of LLVM
+extern CachedWriter CW; // Object to accelerate printing of LLVM
struct MethodInfo; // Defined in ExecutionAnnotations.h
class CallInst;
class ReturnInst;
class BranchInst;
+class LoadInst;
+class StoreInst;
class AllocationInst;
-typedef uint64_t PointerTy;
-
-union GenericValue {
- bool BoolVal;
- unsigned char UByteVal;
- signed char SByteVal;
- unsigned short UShortVal;
- signed short ShortVal;
- unsigned int UIntVal;
- signed int IntVal;
- uint64_t ULongVal;
- int64_t LongVal;
- double DoubleVal;
- float FloatVal;
- PointerTy PointerVal;
- unsigned char Untyped[8];
-};
-
// AllocaHolder - Object to track all of the blocks of memory allocated by
// alloca. When the function returns, this object is poped off the execution
// stack, which causes the dtor to be run, which frees all the alloca'd memory.
// Interpreter - This class represents the entirety of the interpreter.
//
-class Interpreter {
- Module *CurMod; // The current Module being executed (0 if none)
+class Interpreter : public ExecutionEngine {
int ExitCode; // The exit code to be returned by the lli util
+ bool Debug; // Debug mode enabled?
bool Profile; // Profiling enabled?
bool Trace; // Tracing enabled?
int CurFrame; // The current stack frame being inspected
+ TargetData TD;
// The runtime stack of executing code. The top of the stack is the current
// function record.
std::vector<ExecutionContext> ECStack;
public:
- Interpreter();
- inline ~Interpreter() { CW.setModule(0); delete CurMod; }
+ Interpreter(Module *M, unsigned Config, bool DebugMode, bool TraceMode);
+ inline ~Interpreter() { CW.setModule(0); }
// getExitCode - return the code that should be the exit code for the lli
// utility.
inline int getExitCode() const { return ExitCode; }
- inline Module *getModule() const { return CurMod; }
+
+ /// run - Start execution with the specified function and arguments.
+ ///
+ virtual int run(const std::string &FnName,
+ const std::vector<std::string> &Args);
+
// enableProfiling() - Turn profiling on, clear stats?
void enableProfiling() { Profile = true; }
void handleUserInput();
// User Interation Methods...
- void loadModule(const std::string &Filename);
- bool flushModule();
bool callMethod(const std::string &Name); // return true on failure
void setBreakpoint(const std::string &Name);
void infoValue(const std::string &Name);
bool callMainMethod(const std::string &MainName,
const std::vector<std::string> &InputFilename);
- GenericValue CreateArgv(const std::vector<std::string> &InputArgv);
void list(); // Do the 'list' command
void printStackTrace(); // Do the 'backtrace' command
//
inline bool isStopped() const { return !ECStack.empty(); }
+ //FIXME: private:
+public:
+ GenericValue executeGEPOperation(Value *Ptr, User::op_iterator I,
+ User::op_iterator E, ExecutionContext &SF);
+ void executeLoadInst(LoadInst &I, ExecutionContext &SF);
+ void executeStoreInst(StoreInst &I, ExecutionContext &SF);
+
+
private: // Helper functions
+ void *getPointerToFunction(const Function *F) { return (void*)F; }
+
// getCurrentExecutablePath() - Return the directory that the lli executable
// lives in.
//
#include "Interpreter.h"
#include "llvm/SymbolTable.h"
#include "llvm/Assembly/Writer.h"
+#include "llvm/Module.h"
#include <iostream>
using std::cout;
Function *CurMeth = getCurrentMethod();
if (CurMeth) ::LookupMatchingNames(Name, CurMeth->getSymbolTable(), Results);
- if (CurMod ) ::LookupMatchingNames(Name, CurMod ->getSymbolTable(), Results);
+ ::LookupMatchingNames(Name, getModule().getSymbolTable(), Results);
return Results;
}
#include "Interpreter.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/Function.h"
#include "llvm/Transforms/Utils/Linker.h"
#include <algorithm>
using std::string;
Print, Info, List, StackTrace, Up, Down, // Inspection
Next, Step, Run, Finish, Call, // Control flow changes
Break, Watch, // Debugging
- Load, Flush,
- TraceOpt, ProfileOpt // Toggle features
+ Flush,
+ TraceOpt, // Toggle features
};
// CommandTable - Build a lookup table for the commands available to the user...
{ "break" , Break }, { "b", Break },
{ "watch" , Watch },
- { "load" , Load },
{ "flush" , Flush },
{ "trace" , TraceOpt },
- { "profile" , ProfileOpt },
};
static CommandTableElement *CommandTableEnd =
CommandTable+sizeof(CommandTable)/sizeof(CommandTable[0]);
switch (E->CID) {
case Quit: UserQuit = true; break;
- case Load:
- cin >> Command;
- loadModule(Command);
- break;
- case Flush: flushModule(); break;
case Print:
cin >> Command;
print(Command);
cout << "Tracing " << (Trace ? "enabled\n" : "disabled\n");
break;
- case ProfileOpt:
- Profile = !Profile;
- cout << "Profiling " << (Trace ? "enabled\n" : "disabled\n");
- break;
-
default:
cout << "Command '" << Command << "' unimplemented!\n";
break;
} while (!UserQuit);
}
-//===----------------------------------------------------------------------===//
-// loadModule - Load a new module to execute...
-//
-void Interpreter::loadModule(const string &Filename) {
- string ErrorMsg;
- if (CurMod && !flushModule()) return; // Kill current execution
-
- CurMod = ParseBytecodeFile(Filename, &ErrorMsg);
- if (CurMod == 0) {
- cout << "Error parsing '" << Filename << "': No module loaded: "
- << ErrorMsg << "\n";
- return;
- }
- CW.setModule(CurMod); // Update Writer
-
-#if 0
- string RuntimeLib = getCurrentExecutablePath();
- if (!RuntimeLib.empty()) RuntimeLib += "/";
- RuntimeLib += "RuntimeLib.bc";
-
- if (Module *SupportLib = ParseBytecodeFile(RuntimeLib, &ErrorMsg)) {
- if (LinkModules(CurMod, SupportLib, &ErrorMsg))
- std::cerr << "Error Linking runtime library into current module: "
- << ErrorMsg << "\n";
- } else {
- std::cerr << "Error loading runtime library '"+RuntimeLib+"': "
- << ErrorMsg << "\n";
- }
-#endif
-}
-
-
-//===----------------------------------------------------------------------===//
-// flushModule - Return true if the current program has been unloaded.
-//
-bool Interpreter::flushModule() {
- if (CurMod == 0) {
- cout << "Error flushing: No module loaded!\n";
- return false;
- }
-
- if (!ECStack.empty()) {
- // TODO: if use is not sure, return false
- cout << "Killing current execution!\n";
- ECStack.clear();
- CurFrame = -1;
- }
-
- CW.setModule(0);
- delete CurMod;
- CurMod = 0;
- ExitCode = 0;
- return true;
-}
-
//===----------------------------------------------------------------------===//
// setBreakpoint - Enable a breakpoint at the specified location
//
return true;
}
- Args.push_back(CreateArgv(InputArgv));
+ Args.push_back(PTOGV(CreateArgv(InputArgv)));
}
// fallthrough
case 1:
LEVEL = ../..
TOOLNAME = lli
-USEDLIBS = bcreader vmcore analysis.a support.a target.a transforms.a
+PARALLEL_DIRS = Interpreter JIT
+
+JITLIBS = lli-jit codegen x86 scalaropts.a
+USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore analysis.a support.a target.a
+#transforms.a
# Have gcc tell the linker to export symbols from the program so that
# dynamically loaded modules can be linked against them.
LEVEL = ../..
TOOLNAME = lli
-USEDLIBS = bcreader vmcore analysis.a support.a target.a transforms.a
+PARALLEL_DIRS = Interpreter JIT
+
+JITLIBS = lli-jit codegen x86 scalaropts.a
+USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore analysis.a support.a target.a
+#transforms.a
# Have gcc tell the linker to export symbols from the program so that
# dynamically loaded modules can be linked against them.
-//===----------------------------------------------------------------------===//
-// LLVM INTERPRETER/DEBUGGER/PROFILER UTILITY
+//===- lli.cpp - LLVM Interpreter / Dynamic compiler ----------------------===//
//
-// This utility is an interactive frontend to almost all other LLVM
-// functionality. It may be used as an interpreter to run code, a debugger to
-// find problems, or a profiler to analyze execution frequencies.
+// This utility provides a way to execute LLVM bytecode without static
+// compilation. This consists of a very simple and slow (but portable)
+// interpreter, along with capability for system specific dynamic compilers. At
+// runtime, the fastest (stable) execution engine is selected to run the
+// program. This means the JIT compiler for the current platform if it's
+// available.
//
//===----------------------------------------------------------------------===//
-#include "Interpreter.h"
+#include "ExecutionEngine.h"
#include "Support/CommandLine.h"
+#include "llvm/Bytecode/Reader.h"
+#include "llvm/Module.h"
+#include "llvm/Target/TargetMachineImpls.h"
-static cl::opt<std::string>
-InputFile(cl::desc("<input bytecode>"), cl::Positional, cl::init("-"));
-
-static cl::list<std::string>
-InputArgv(cl::ConsumeAfter, cl::desc("<program arguments>..."));
+namespace {
+ cl::opt<std::string>
+ InputFile(cl::desc("<input bytecode>"), cl::Positional, cl::init("-"));
-static cl::opt<std::string>
-MainFunction ("f", cl::desc("Function to execute"), cl::init("main"),
- cl::value_desc("function name"));
+ cl::list<std::string>
+ InputArgv(cl::ConsumeAfter, cl::desc("<program arguments>..."));
-static cl::opt<bool>
-DebugMode("d", cl::desc("Start program in debugger"));
+ cl::opt<std::string>
+ MainFunction ("f", cl::desc("Function to execute"), cl::init("main"),
+ cl::value_desc("function name"));
-static cl::opt<bool>
-TraceMode("trace", cl::desc("Enable Tracing"));
+ cl::opt<bool> DebugMode("d", cl::desc("Start program in debugger"));
-static cl::opt<bool>
-ProfileMode("profile", cl::desc("Enable Profiling [unimp]"));
+ cl::opt<bool> TraceMode("trace", cl::desc("Enable Tracing"));
+ cl::opt<bool> ForceInterpreter("force-interpreter",
+ cl::desc("Force interpretation: disable JIT"),
+ cl::init(true));
+}
//===----------------------------------------------------------------------===//
-// Interpreter ctor - Initialize stuff
+// ExecutionEngine Class Implementation
//
-Interpreter::Interpreter() : ExitCode(0), Profile(ProfileMode),
- Trace(TraceMode), CurFrame(-1) {
- CurMod = 0;
- loadModule(InputFile);
-
- // Initialize the "backend"
- initializeExecutionEngine();
- initializeExternalMethods();
+
+ExecutionEngine::~ExecutionEngine() {
+ delete &CurMod;
}
//===----------------------------------------------------------------------===//
// main Driver function
//
int main(int argc, char** argv) {
- cl::ParseCommandLineOptions(argc, argv, " llvm interpreter\n");
+ cl::ParseCommandLineOptions(argc, argv,
+ " llvm interpreter & dynamic compiler\n");
+
+ // Load the bytecode...
+ string ErrorMsg;
+ Module *M = ParseBytecodeFile(InputFile, &ErrorMsg);
+ if (M == 0) {
+ cout << "Error parsing '" << InputFile << "': "
+ << ErrorMsg << "\n";
+ exit(1);
+ }
+
+#if 0
+ // Link in the runtime library for LLI...
+ string RuntimeLib = getCurrentExecutablePath();
+ if (!RuntimeLib.empty()) RuntimeLib += "/";
+ RuntimeLib += "RuntimeLib.bc";
+
+ if (Module *SupportLib = ParseBytecodeFile(RuntimeLib, &ErrorMsg)) {
+ if (LinkModules(M, SupportLib, &ErrorMsg))
+ std::cerr << "Error Linking runtime library into current module: "
+ << ErrorMsg << "\n";
+ } else {
+ std::cerr << "Error loading runtime library '"+RuntimeLib+"': "
+ << ErrorMsg << "\n";
+ }
+#endif
+
+ // FIXME: This should look at the PointerSize and endianness of the bytecode
+ // file to determine the endianness and pointer size of target machine to use.
+ unsigned Config = TM::PtrSize64 | TM::BigEndian;
+
+ ExecutionEngine *EE = 0;
+
+ // If there is nothing that is forcing us to use the interpreter, make a JIT.
+ if (!ForceInterpreter && !DebugMode && !TraceMode)
+ EE = ExecutionEngine::createJIT(M, Config);
+
+ // If we can't make a JIT, make an interpreter instead.
+ if (EE == 0)
+ EE = ExecutionEngine::createInterpreter(M, Config, DebugMode, TraceMode);
// Add the module name to the start of the argv vector...
- //
InputArgv.insert(InputArgv.begin(), InputFile);
- // Create the interpreter...
- Interpreter I;
-
- // Handle alternate names of the program. If started as llp, enable profiling
- // if started as ldb, enable debugging...
- //
- if (argv[0] == "ldb") // TODO: Obviously incorrect, but you get the idea
- DebugMode = true;
- else if (argv[0] == "llp")
- ProfileMode = true;
-
- // If running with the profiler, enable it now...
- if (ProfileMode) I.enableProfiling();
- if (TraceMode) I.enableTracing();
-
- // Start interpreter into the main function...
- //
- if (!I.callMainMethod(MainFunction, InputArgv) && !DebugMode) {
- // If not in debug mode and if the call succeeded, run the code now...
- I.run();
- }
-
- // If debug mode, allow the user to interact... also, if the user pressed
- // ctrl-c or execution hit an error, enter the event loop...
- if (DebugMode || I.isStopped())
- I.handleUserInput();
+ // Run the main function!
+ int ExitCode = EE->run(MainFunction, InputArgv);
- // Return the status code of the program executed...
- return I.getExitCode();
+ // Now that we are done executing the program, shut down the execution engine
+ delete EE;
+ return ExitCode;
}
projects / oota-llvm.git / commitdiff