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<std::string> SourceFile(cl::Positional, cl::Required, 25 cl::desc("SOURCEFILE")); 26 27 static cl::opt<bool> 28 DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file")); 29 30 static cl::opt<std::string> 31 InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init("")); 32 33 static cl::opt<std::string> 34 InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init("")); 35 36 static cl::opt<bool> 37 AllBlocks("a", cl::init(false), cl::desc("display all block info")); 38 39 static cl::opt<bool> 40 BranchInfo("b", cl::init(false), cl::desc("display branch info")); 41 42 static cl::opt<bool> 43 BranchCount("c", cl::init(false), cl::desc("display branch counts instead of \ 44 probabilities (requires -b)")); 45 46 static cl::opt<bool> 47 FuncCoverage("f", cl::init(false), cl::desc("output function coverage")); 48 49 static cl::opt<bool> 50 UncondBranch("u", cl::init(false), cl::desc("display unconditional branch info \ 51 (requires -b)")); 52 53 //===----------------------------------------------------------------------===// 54 int main(int argc, char **argv) { 55 // Print a stack trace if we signal out. 56 sys::PrintStackTraceOnErrorSignal(); 57 PrettyStackTraceProgram X(argc, argv); 58 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. 59 60 cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n"); 61 62 if (InputGCNO.empty()) 63 InputGCNO = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcno"; 64 if (InputGCDA.empty()) 65 InputGCDA = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcda"; 66 67 GCOVFile GF; 68 69 OwningPtr<MemoryBuffer> GCNO_Buff; 70 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) { 71 errs() << InputGCNO << ": " << ec.message() << "\n"; 72 return 1; 73 } 74 GCOVBuffer GCNO_GB(GCNO_Buff.get()); 75 if (!GF.readGCNO(GCNO_GB)) { 76 errs() << "Invalid .gcno File!\n"; 77 return 1; 78 } 79 80 OwningPtr<MemoryBuffer> GCDA_Buff; 81 if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) { 82 errs() << InputGCDA << ": " << ec.message() << "\n"; 83 return 1; 84 } 85 GCOVBuffer GCDA_GB(GCDA_Buff.get()); 86 if (!GF.readGCDA(GCDA_GB)) { 87 errs() << "Invalid .gcda File!\n"; 88 return 1; 89 } 90 91 if (DumpGCOV) 92 GF.dump(); 93 94 GCOVOptions Options(AllBlocks, BranchInfo, BranchCount, FuncCoverage, 95 UncondBranch); 96 FileInfo FI(Options); 97 GF.collectLineCounts(FI); 98 FI.print(InputGCNO, InputGCDA); 99 return 0; 100 } 101