-//===-- ExternalMethods.cpp - Implement External Methods ------------------===//
+//===-- ExternalFunctions.cpp - Implement External Functions --------------===//
//
-// This file contains both code to deal with invoking "external" methods, but
-// also contains code that implements "exported" external methods.
+// This file contains both code to deal with invoking "external" functions, but
+// also contains code that implements "exported" external functions.
//
-// External methods in LLI are implemented by dlopen'ing the lli executable and
-// using dlsym to look op the methods that we want to invoke. If a method is
-// found, then the arguments are mangled and passed in to the function call.
+// External functions in LLI are implemented by dlopen'ing the lli executable
+// and using dlsym to look op the functions that we want to invoke. If a
+// function is found, then the arguments are mangled and passed in to the
+// function call.
//
//===----------------------------------------------------------------------===//
#include "Interpreter.h"
+#include "ExecutionAnnotations.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/SymbolTable.h"
+#include "llvm/Target/TargetData.h"
#include <map>
#include <dlfcn.h>
#include <link.h>
#include <math.h>
#include <stdio.h>
+using std::vector;
+using std::cout;
-typedef GenericValue (*ExFunc)(MethodType *, const vector<GenericValue> &);
-static map<const Method *, ExFunc> Functions;
-static map<string, ExFunc> FuncNames;
+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 Interpreter *TheInterpreter;
// getCurrentExecutablePath() - Return the directory that the lli executable
// lives in.
//
-string Interpreter::getCurrentExecutablePath() const {
+std::string Interpreter::getCurrentExecutablePath() const {
Dl_info Info;
if (dladdr(&TheInterpreter, &Info) == 0) return "";
- string LinkAddr(Info.dli_fname);
+ std::string LinkAddr(Info.dli_fname);
unsigned SlashPos = LinkAddr.rfind('/');
- if (SlashPos != string::npos)
+ if (SlashPos != std::string::npos)
LinkAddr.resize(SlashPos); // Trim the executable name off...
return LinkAddr;
case Type::FloatTyID: return 'F';
case Type::DoubleTyID: return 'D';
case Type::PointerTyID: return 'P';
- case Type::MethodTyID: return 'M';
+ case Type::FunctionTyID: return 'M';
case Type::StructTyID: return 'T';
case Type::ArrayTyID: return 'A';
case Type::OpaqueTyID: return 'O';
}
}
-static ExFunc lookupMethod(const Method *M) {
+static ExFunc lookupFunction(const Function *M) {
// Function not found, look it up... start by figuring out what the
// composite function name should be.
- string ExtName = "lle_";
- const MethodType *MT = M->getMethodType();
+ std::string ExtName = "lle_";
+ const FunctionType *MT = M->getFunctionType();
for (unsigned i = 0; const Type *Ty = MT->getContainedType(i); ++i)
ExtName += getTypeID(Ty);
ExtName += "_" + M->getName();
if (FnPtr == 0) // Try calling a generic function... if it exists...
FnPtr = (ExFunc)dlsym(RTLD_DEFAULT, ("lle_X_"+M->getName()).c_str());
if (FnPtr != 0)
- Functions.insert(make_pair(M, FnPtr)); // Cache for later
+ Functions.insert(std::make_pair(M, FnPtr)); // Cache for later
return FnPtr;
}
-GenericValue Interpreter::callExternalMethod(Method *M,
+GenericValue Interpreter::callExternalMethod(Function *M,
const vector<GenericValue> &ArgVals) {
TheInterpreter = this;
- // Do a lookup to see if the method is in our cache... this should just be a
+ // Do a lookup to see if the function is in our cache... this should just be a
// defered annotation!
- map<const Method *, ExFunc>::iterator FI = Functions.find(M);
- ExFunc Fn = (FI == Functions.end()) ? lookupMethod(M) : FI->second;
+ std::map<const Function *, ExFunc>::iterator FI = Functions.find(M);
+ ExFunc Fn = (FI == Functions.end()) ? lookupFunction(M) : FI->second;
if (Fn == 0) {
- cout << "Tried to execute an unknown external method: "
- << M->getType()->getDescription() << " " << M->getName() << endl;
+ cout << "Tried to execute an unknown external function: "
+ << M->getType()->getDescription() << " " << M->getName() << "\n";
return GenericValue();
}
// TODO: FIXME when types are not const!
- GenericValue Result = Fn(const_cast<MethodType*>(M->getMethodType()),ArgVals);
+ GenericValue Result = Fn(const_cast<FunctionType*>(M->getFunctionType()),
+ ArgVals);
return Result;
}
//===----------------------------------------------------------------------===//
-// Methods "exported" to the running application...
+// Functions "exported" to the running application...
//
extern "C" { // Don't add C++ manglings to llvm mangling :)
// Implement void printstr([ubyte {x N}] *)
-GenericValue lle_VP_printstr(MethodType *M, const vector<GenericValue> &ArgVal){
+GenericValue lle_VP_printstr(FunctionType *M, const vector<GenericValue> &ArgVal){
assert(ArgVal.size() == 1 && "printstr only takes one argument!");
cout << (char*)ArgVal[0].PointerVal;
return GenericValue();
}
// Implement 'void print(X)' for every type...
-GenericValue lle_X_print(MethodType *M, const vector<GenericValue> &ArgVals) {
+GenericValue lle_X_print(FunctionType *M, const vector<GenericValue> &ArgVals) {
assert(ArgVals.size() == 1 && "generic print only takes one argument!");
Interpreter::print(M->getParamTypes()[0], ArgVals[0]);
}
// Implement 'void printVal(X)' for every type...
-GenericValue lle_X_printVal(MethodType *M, const vector<GenericValue> &ArgVal) {
+GenericValue lle_X_printVal(FunctionType *M, const vector<GenericValue> &ArgVal) {
assert(ArgVal.size() == 1 && "generic print only takes one argument!");
// Specialize print([ubyte {x N} ] *) and print(sbyte *)
- if (PointerType *PTy = dyn_cast<PointerType>(M->getParamTypes()[0].get()))
+ if (const PointerType *PTy =
+ dyn_cast<PointerType>(M->getParamTypes()[0].get()))
if (PTy->getElementType() == Type::SByteTy ||
isa<ArrayType>(PTy->getElementType())) {
return lle_VP_printstr(M, ArgVal);
// Implement 'void printString(X)'
// Argument must be [ubyte {x N} ] * or sbyte *
-GenericValue lle_X_printString(MethodType *M, const vector<GenericValue> &ArgVal) {
+GenericValue lle_X_printString(FunctionType *M, const vector<GenericValue> &ArgVal) {
assert(ArgVal.size() == 1 && "generic print only takes one argument!");
return lle_VP_printstr(M, ArgVal);
}
// Implement 'void print<TYPE>(X)' for each primitive type or pointer type
#define PRINT_TYPE_FUNC(TYPENAME,TYPEID) \
- GenericValue lle_X_print##TYPENAME(MethodType *M,\
+ GenericValue lle_X_print##TYPENAME(FunctionType *M,\
const vector<GenericValue> &ArgVal) {\
assert(ArgVal.size() == 1 && "generic print only takes one argument!");\
assert(M->getParamTypes()[0].get()->getPrimitiveID() == Type::TYPEID);\
PRINT_TYPE_FUNC(Pointer, PointerTyID)
-// void "putchar"(sbyte)
-GenericValue lle_Vb_putchar(MethodType *M, const vector<GenericValue> &Args) {
+// void putchar(sbyte)
+GenericValue lle_Vb_putchar(FunctionType *M, const vector<GenericValue> &Args) {
cout << Args[0].SByteVal;
return GenericValue();
}
-// int "putchar"(int)
-GenericValue lle_ii_putchar(MethodType *M, const vector<GenericValue> &Args) {
- cout << ((char)Args[0].IntVal) << flush;
+// int putchar(int)
+GenericValue lle_ii_putchar(FunctionType *M, const vector<GenericValue> &Args) {
+ cout << ((char)Args[0].IntVal) << std::flush;
return Args[0];
}
-// void "putchar"(ubyte)
-GenericValue lle_VB_putchar(MethodType *M, const vector<GenericValue> &Args) {
- cout << Args[0].SByteVal << flush;
+// void putchar(ubyte)
+GenericValue lle_VB_putchar(FunctionType *M, const vector<GenericValue> &Args) {
+ cout << Args[0].SByteVal << std::flush;
return Args[0];
}
-// void "__main"()
-GenericValue lle_V___main(MethodType *M, const vector<GenericValue> &Args) {
+// void __main()
+GenericValue lle_V___main(FunctionType *M, const vector<GenericValue> &Args) {
return GenericValue();
}
-// void "exit"(int)
-GenericValue lle_X_exit(MethodType *M, const vector<GenericValue> &Args) {
+// void exit(int)
+GenericValue lle_X_exit(FunctionType *M, const vector<GenericValue> &Args) {
TheInterpreter->exitCalled(Args[0]);
return GenericValue();
}
+// void abort(void)
+GenericValue lle_X_abort(FunctionType *M, const vector<GenericValue> &Args) {
+ std::cerr << "***PROGRAM ABORTED***!\n";
+ GenericValue GV;
+ GV.IntVal = 1;
+ TheInterpreter->exitCalled(GV);
+ return GenericValue();
+}
+
// void *malloc(uint)
-GenericValue lle_X_malloc(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_malloc(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1 && "Malloc expects one argument!");
GenericValue GV;
GV.PointerVal = (PointerTy)malloc(Args[0].UIntVal);
}
// void free(void *)
-GenericValue lle_X_free(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_free(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
free((void*)Args[0].PointerVal);
return GenericValue();
}
// int atoi(char *)
-GenericValue lle_X_atoi(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_atoi(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
GenericValue GV;
GV.IntVal = atoi((char*)Args[0].PointerVal);
}
// double pow(double, double)
-GenericValue lle_X_pow(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_pow(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 2);
GenericValue GV;
GV.DoubleVal = pow(Args[0].DoubleVal, Args[1].DoubleVal);
return GV;
}
+// double exp(double)
+GenericValue lle_X_exp(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 1);
+ GenericValue GV;
+ GV.DoubleVal = exp(Args[0].DoubleVal);
+ return GV;
+}
+
// double sqrt(double)
-GenericValue lle_X_sqrt(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_sqrt(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
GenericValue GV;
GV.DoubleVal = sqrt(Args[0].DoubleVal);
}
// double log(double)
-GenericValue lle_X_log(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_log(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
GenericValue GV;
GV.DoubleVal = log(Args[0].DoubleVal);
}
// double floor(double)
-GenericValue lle_X_floor(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_floor(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
GenericValue GV;
GV.DoubleVal = floor(Args[0].DoubleVal);
}
// double drand48()
-GenericValue lle_X_drand48(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_drand48(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 0);
GenericValue GV;
GV.DoubleVal = drand48();
}
// long lrand48()
-GenericValue lle_X_lrand48(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_lrand48(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 0);
GenericValue GV;
GV.IntVal = lrand48();
}
// void srand48(long)
-GenericValue lle_X_srand48(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_srand48(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
srand48(Args[0].IntVal);
return GenericValue();
}
// void srand(uint)
-GenericValue lle_X_srand(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_srand(FunctionType *M, const vector<GenericValue> &Args) {
assert(Args.size() == 1);
srand(Args[0].UIntVal);
return GenericValue();
// int sprintf(sbyte *, sbyte *, ...) - a very rough implementation to make
// output useful.
-GenericValue lle_X_sprintf(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_sprintf(FunctionType *M, const vector<GenericValue> &Args) {
char *OutputBuffer = (char *)Args[0].PointerVal;
const char *FmtStr = (const char *)Args[1].PointerVal;
unsigned ArgNo = 2;
case '%':
sprintf(Buffer, FmtBuf); break;
case 'c':
- sprintf(Buffer, FmtBuf, Args[ArgNo++].SByteVal); break;
+ sprintf(Buffer, FmtBuf, Args[ArgNo++].IntVal); break;
case 'd': case 'i':
case 'u': case 'o':
case 'x': case 'X':
- if (HowLong == 2)
+ if (HowLong >= 1) {
+ if (HowLong == 1) {
+ // Make sure we use %lld with a 64 bit argument because we might be
+ // compiling LLI on a 32 bit compiler.
+ unsigned Size = strlen(FmtBuf);
+ FmtBuf[Size] = FmtBuf[Size-1];
+ FmtBuf[Size+1] = 0;
+ FmtBuf[Size-1] = 'l';
+ }
sprintf(Buffer, FmtBuf, Args[ArgNo++].ULongVal);
- else
+ } else
sprintf(Buffer, FmtBuf, Args[ArgNo++].IntVal); break;
case 'e': case 'E': case 'g': case 'G': case 'f':
sprintf(Buffer, FmtBuf, Args[ArgNo++].DoubleVal); break;
}
// int printf(sbyte *, ...) - a very rough implementation to make output useful.
-GenericValue lle_X_printf(MethodType *M, const vector<GenericValue> &Args) {
+GenericValue lle_X_printf(FunctionType *M, const vector<GenericValue> &Args) {
char Buffer[10000];
vector<GenericValue> NewArgs;
GenericValue GV; GV.PointerVal = (PointerTy)Buffer;
return GV;
}
+// int sscanf(const char *format, ...);
+GenericValue lle_X_sscanf(FunctionType *M, const vector<GenericValue> &args) {
+ assert(args.size() < 10 && "Only handle up to 10 args to sscanf right now!");
+
+ const char *Args[10];
+ for (unsigned i = 0; i < args.size(); ++i)
+ Args[i] = (const char*)args[i].PointerVal;
+
+ GenericValue GV;
+ GV.IntVal = sscanf(Args[0], Args[1], Args[2], Args[3], Args[4],
+ Args[5], Args[6], Args[7], Args[8], Args[9]);
+ return GV;
+}
+
+
+// int clock(void) - Profiling implementation
+GenericValue lle_i_clock(FunctionType *M, const vector<GenericValue> &Args) {
+ extern int clock(void);
+ GenericValue GV; GV.IntVal = clock();
+ return GV;
+}
+
+//===----------------------------------------------------------------------===//
+// IO Functions...
+//===----------------------------------------------------------------------===//
+
+// getFILE - Turn a pointer in the host address space into a legit pointer in
+// the interpreter address space. For the most part, this is an identity
+// transformation, but if the program refers to stdio, stderr, stdin then they
+// have pointers that are relative to the __iob array. If this is the case,
+// change the FILE into the REAL stdio stream.
+//
+static FILE *getFILE(PointerTy Ptr) {
+ static Module *LastMod = 0;
+ static PointerTy IOBBase = 0;
+ static unsigned FILESize;
+
+ 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 (SymbolTable *ST = M->getSymbolTable()) {
+ for (SymbolTable::iterator I = ST->begin(), E = ST->end(); I != E; ++I) {
+ SymbolTable::VarMap &M = I->second;
+ for (SymbolTable::VarMap::iterator J = M.begin(), E = M.end();
+ J != E; ++J)
+ if (J->first == "__iob")
+ if ((IOB = dyn_cast<GlobalVariable>(J->second)))
+ break;
+ if (IOB) break;
+ }
+ }
+
+ // If we found an __iob symbol now, find out what the actual address it's
+ // held in is...
+ if (IOB) {
+ // Get the address the array lives in...
+ GlobalAddress *Address =
+ (GlobalAddress*)IOB->getOrCreateAnnotation(GlobalAddressAID);
+ IOBBase = (PointerTy)(GenericValue*)Address->Ptr;
+
+ // Figure out how big each element of the array is...
+ const ArrayType *AT =
+ dyn_cast<ArrayType>(IOB->getType()->getElementType());
+ if (AT)
+ FILESize = TD.getTypeSize(AT->getElementType());
+ else
+ FILESize = 16*8; // Default size
+ }
+ }
+
+ // Check to see if this is a reference to __iob...
+ if (IOBBase) {
+ unsigned FDNum = (Ptr-IOBBase)/FILESize;
+ if (FDNum == 0)
+ return stdin;
+ else if (FDNum == 1)
+ return stdout;
+ else if (FDNum == 2)
+ return stderr;
+ }
+
+ return (FILE*)Ptr;
+}
+
+
+// FILE *fopen(const char *filename, const char *mode);
+GenericValue lle_X_fopen(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 2);
+ GenericValue GV;
+
+ GV.PointerVal = (PointerTy)fopen((const char *)Args[0].PointerVal,
+ (const char *)Args[1].PointerVal);
+ return GV;
+}
+
+// int fclose(FILE *F);
+GenericValue lle_X_fclose(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 1);
+ GenericValue GV;
+
+ GV.IntVal = fclose(getFILE(Args[0].PointerVal));
+ return GV;
+}
+
+// size_t fread(void *ptr, size_t size, size_t nitems, FILE *stream);
+GenericValue lle_X_fread(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 4);
+ GenericValue GV;
+
+ GV.UIntVal = fread((void*)Args[0].PointerVal, Args[1].UIntVal,
+ Args[2].UIntVal, getFILE(Args[3].PointerVal));
+ return GV;
+}
+
+// size_t fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream);
+GenericValue lle_X_fwrite(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 4);
+ GenericValue GV;
+
+ GV.UIntVal = fwrite((void*)Args[0].PointerVal, Args[1].UIntVal,
+ Args[2].UIntVal, getFILE(Args[3].PointerVal));
+ return GV;
+}
+
+// char *fgets(char *s, int n, FILE *stream);
+GenericValue lle_X_fgets(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 3);
+ GenericValue GV;
+
+ GV.PointerVal = (PointerTy)fgets((char*)Args[0].PointerVal, Args[1].IntVal,
+ getFILE(Args[2].PointerVal));
+ return GV;
+}
+
+// int fflush(FILE *stream);
+GenericValue lle_X_fflush(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 1);
+ GenericValue GV;
+
+ GV.IntVal = fflush(getFILE(Args[0].PointerVal));
+ return GV;
+}
+
+// int getc(FILE *stream);
+GenericValue lle_X_getc(FunctionType *M, const vector<GenericValue> &Args) {
+ assert(Args.size() == 1);
+ GenericValue GV;
+
+ GV.IntVal = getc(getFILE(Args[0].PointerVal));
+ return GV;
+}
} // End extern "C"
FuncNames["lle_VB_putchar"] = lle_VB_putchar;
FuncNames["lle_V___main"] = lle_V___main;
FuncNames["lle_X_exit"] = lle_X_exit;
+ FuncNames["lle_X_abort"] = lle_X_abort;
FuncNames["lle_X_malloc"] = lle_X_malloc;
FuncNames["lle_X_free"] = lle_X_free;
FuncNames["lle_X_atoi"] = lle_X_atoi;
FuncNames["lle_X_pow"] = lle_X_pow;
+ FuncNames["lle_X_exp"] = lle_X_exp;
FuncNames["lle_X_log"] = lle_X_log;
FuncNames["lle_X_floor"] = lle_X_floor;
FuncNames["lle_X_srand"] = lle_X_srand;
FuncNames["lle_X_sqrt"] = lle_X_sqrt;
FuncNames["lle_X_printf"] = lle_X_printf;
FuncNames["lle_X_sprintf"] = lle_X_sprintf;
+ FuncNames["lle_X_sscanf"] = lle_X_sscanf;
+ FuncNames["lle_i_clock"] = lle_i_clock;
+ FuncNames["lle_X_fopen"] = lle_X_fopen;
+ FuncNames["lle_X_fclose"] = lle_X_fclose;
+ FuncNames["lle_X_fread"] = lle_X_fread;
+ FuncNames["lle_X_fwrite"] = lle_X_fwrite;
+ FuncNames["lle_X_fgets"] = lle_X_fgets;
+ FuncNames["lle_X_fflush"] = lle_X_fflush;
+ FuncNames["lle_X_getc"] = lle_X_getc;
}
projects / oota-llvm.git / blobdiff