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//===------------------------------------------------------------------------===
// LLVM 'DIS' UTILITY
//
// This utility may be invoked in the following manner:
// dis --help - Output information about command line switches
// dis [options] - Read LLVM bytecode from stdin, write assembly to stdout
// dis [options] x.bc - Read LLVM bytecode from the x.bc file, write assembly
// to the x.ll file.
//
//===------------------------------------------------------------------------===
#include <iostream.h>
#include <fstream.h>
#include "llvm/Module.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/Tools/CommandLine.h"
int main(int argc, char **argv) {
ToolCommandLine Opts(argc, argv, false);
// We only support the options that the system parser does... if it left any
// then we don't know what to do.
//
if (argc > 1) {
for (int i = 1; i < argc; i++) {
if (string(argv[i]) != string("--help"))
cerr << argv[0] << ": argument not recognized: '" << argv[i] << "'!\n";
}
cerr << argv[0] << " usage:\n"
<< " " << argv[0] << " --help - Print this usage information\n"
<< " " << argv[0] << " x.bc - Parse <x.bc> file and output "
<< "assembly to x.ll\n"
<< " " << argv[0] << " - Parse stdin and write to stdout.\n";
return 1;
}
ostream *Out = &cout; // Default to printing to stdout...
Module *C = ParseBytecodeFile(Opts.getInputFilename());
if (C == 0) {
cerr << "bytecode didn't read correctly.\n";
return 1;
}
if (Opts.getOutputFilename() != "-") {
Out = new ofstream(Opts.getOutputFilename().c_str(),
(Opts.getForce() ? 0 : ios::noreplace)|ios::out);
if (!Out->good()) {
cerr << "Error opening " << Opts.getOutputFilename()
<< ": sending to stdout instead!\n";
Out = &cout;
}
}
// All that dis does is write the assembly out to a file... which is exactly
// what the writer library is supposed to do...
(*Out) << C;
delete C;
if (Out != &cout) delete Out;
return 0;
}
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