mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 19:29:31 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@909 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
// LLVM INTERPRETER/DEBUGGER/PROFILER UTILITY
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Interpreter.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
|
|
cl::String InputFilename("" , "Input filename", cl::NoFlags, "-");
|
|
cl::String MainFunction ("f" , "Function to execute", cl::NoFlags, "main");
|
|
cl::Flag DebugMode ("debug" , "Start program in debugger");
|
|
cl::Alias DebugModeA ("d" , "Alias for -debug", cl::NoFlags, DebugMode);
|
|
cl::Flag ProfileMode ("profile", "Enable Profiling [unimp]");
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Interpreter ctor - Initialize stuff
|
|
//
|
|
Interpreter::Interpreter() : ExitCode(0), Profile(ProfileMode), CurFrame(-1) {
|
|
CurMod = 0;
|
|
loadModule(InputFilename);
|
|
|
|
// Initialize the "backend"
|
|
initializeExecutionEngine();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// main Driver function
|
|
//
|
|
int main(int argc, char** argv) {
|
|
cl::ParseCommandLineOptions(argc, argv, " llvm interpreter\n");
|
|
|
|
// 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();
|
|
|
|
// Start interpreter into the main function...
|
|
//
|
|
if (!I.callMainMethod(MainFunction, InputFilename) && !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();
|
|
|
|
// Return the status code of the program executed...
|
|
return I.getExitCode();
|
|
}
|