1 //===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // llvm-cov is a command line tools to analyze and report coverage information. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/ADT/OwningPtr.h" 15 #include "llvm/Support/CommandLine.h" 16 #include "llvm/Support/GCOV.h" 17 #include "llvm/Support/ManagedStatic.h" 18 #include "llvm/Support/MemoryObject.h" 19 #include "llvm/Support/PrettyStackTrace.h" 20 #include "llvm/Support/Signals.h" 21 #include "llvm/Support/system_error.h" 22 using namespace llvm; 23 24 static cl::opt<bool> 25 DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file")); 26 27 static cl::opt<std::string> 28 InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init("")); 29 30 static cl::opt<std::string> 31 InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init("")); 32 33 static cl::opt<bool> 34 AllBlocks("a", cl::init(false), cl::desc("display all block info")); 35 36 static cl::opt<bool> 37 BranchProb("b", cl::init(false), cl::desc("display branch info")); 38 39 //===----------------------------------------------------------------------===// 40 int main(int argc, char **argv) { 41 // Print a stack trace if we signal out. 42 sys::PrintStackTraceOnErrorSignal(); 43 PrettyStackTraceProgram X(argc, argv); 44 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. 45 46 cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n"); 47 48 GCOVFile GF; 49 if (InputGCNO.empty()) 50 errs() << " " << argv[0] << ": No gcov input file!\n"; 51 52 OwningPtr<MemoryBuffer> GCNO_Buff; 53 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) { 54 errs() << InputGCNO << ": " << ec.message() << "\n"; 55 return 1; 56 } 57 GCOVBuffer GCNO_GB(GCNO_Buff.get()); 58 if (!GF.readGCNO(GCNO_GB)) { 59 errs() << "Invalid .gcno File!\n"; 60 return 1; 61 } 62 63 if (!InputGCDA.empty()) { 64 OwningPtr<MemoryBuffer> GCDA_Buff; 65 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) { 66 errs() << InputGCDA << ": " << ec.message() << "\n"; 67 return 1; 68 } 69 GCOVBuffer GCDA_GB(GCDA_Buff.get()); 70 if (!GF.readGCDA(GCDA_GB)) { 71 errs() << "Invalid .gcda File!\n"; 72 return 1; 73 } 74 } 75 76 if (DumpGCOV) 77 GF.dump(); 78 79 GCOVOptions Options(AllBlocks, BranchProb); 80 FileInfo FI(Options); 81 GF.collectLineCounts(FI); 82 FI.print(InputGCNO, InputGCDA); 83 return 0; 84 } 85