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