mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-27 22:15:18 +00:00
107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
//===-- llvm-bcanalyzer.cpp - Byte Code Analyzer --------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by Reid Spencer and is distributed under the
|
|
// University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This tool may be invoked in the following manner:
|
|
// llvm-bcanalyzer [options] - Read LLVM bytecode from stdin
|
|
// llvm-bcanalyzer [options] x.bc - Read LLVM bytecode from the x.bc file
|
|
//
|
|
// Options:
|
|
// --help - Output information about command line switches
|
|
// --nodetails - Don't print out detailed informaton about individual
|
|
// blocks and functions
|
|
// --dump - Dump low-level bytecode structure in readable format
|
|
//
|
|
// This tool provides analytical information about a bytecode file. It is
|
|
// intended as an aid to developers of bytecode reading and writing software. It
|
|
// produces on std::out a summary of the bytecode file that shows various
|
|
// statistics about the contents of the file. By default this information is
|
|
// detailed and contains information about individual bytecode blocks and the
|
|
// functions in the module. To avoid this more detailed output, use the
|
|
// -nodetails option to limit the output to just module level information.
|
|
// The tool is also able to print a bytecode file in a straight forward text
|
|
// format that shows the containment and relationships of the information in
|
|
// the bytecode file (-dump option).
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Analysis/Verifier.h"
|
|
#include "llvm/Bytecode/Analyzer.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/System/Signals.h"
|
|
#include <fstream>
|
|
#include <iostream>
|
|
|
|
using namespace llvm;
|
|
|
|
static cl::opt<std::string>
|
|
InputFilename(cl::Positional, cl::desc("<input bytecode>"), cl::init("-"));
|
|
|
|
static cl::opt<std::string>
|
|
OutputFilename("-o", cl::init("-"), cl::desc("<output file>"));
|
|
|
|
static cl::opt<bool> NoDetails ("nodetails", cl::desc("Skip detailed output"));
|
|
static cl::opt<bool> Dump ("dump", cl::desc("Dump low level bytecode trace"));
|
|
static cl::opt<bool> Verify ("verify", cl::desc("Progressively verify module"));
|
|
|
|
int
|
|
main(int argc, char **argv) {
|
|
try {
|
|
cl::ParseCommandLineOptions(argc, argv,
|
|
" llvm-bcanalyzer Analysis of ByteCode Dumper\n");
|
|
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
|
|
std::ostream* Out = &std::cout; // Default to printing to stdout...
|
|
std::istream* In = &std::cin; // Default to reading stdin
|
|
std::string ErrorMessage;
|
|
BytecodeAnalysis bca;
|
|
|
|
/// Determine what to generate
|
|
bca.detailedResults = !NoDetails;
|
|
bca.progressiveVerify = Verify;
|
|
|
|
/// Analyze the bytecode file
|
|
Module* M = AnalyzeBytecodeFile(InputFilename, bca, &ErrorMessage, (Dump?Out:0));
|
|
|
|
// All that bcanalyzer does is write the gathered statistics to the output
|
|
PrintBytecodeAnalysis(bca,*Out);
|
|
|
|
if ( M && Verify ) {
|
|
std::string verificationMsg;
|
|
try {
|
|
verifyModule( *M, ThrowExceptionAction );
|
|
} catch (std::string& errmsg ) {
|
|
verificationMsg = errmsg;
|
|
}
|
|
if ( verificationMsg.length() > 0 )
|
|
std::cerr << "Final Verification Message: " << verificationMsg << "\n";
|
|
}
|
|
|
|
|
|
// If there was an error, print it and stop.
|
|
if ( ErrorMessage.size() ) {
|
|
std::cerr << argv[0] << ": " << ErrorMessage << "\n";
|
|
return 1;
|
|
}
|
|
|
|
|
|
if (Out != &std::cout) {
|
|
((std::ofstream*)Out)->close();
|
|
delete Out;
|
|
}
|
|
return 0;
|
|
} catch (const std::string& msg) {
|
|
std::cerr << argv[0] << ": " << msg << "\n";
|
|
} catch (...) {
|
|
std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
// vim: sw=2
|