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/StringRef.h" 15 #include "llvm/Support/raw_ostream.h" 16 #include "llvm/Support/Path.h" 17 #include <string> 18 19 using namespace llvm; 20 21 /// \brief The main entry point for the 'show' subcommand. 22 int show_main(int argc, const char **argv); 23 24 /// \brief The main entry point for the 'report' subcommand. 25 int report_main(int argc, const char **argv); 26 27 /// \brief The main entry point for the 'convert-for-testing' subcommand. 28 int convert_for_testing_main(int argc, const char **argv); 29 30 /// \brief The main entry point for the gcov compatible coverage tool. 31 int gcov_main(int argc, const char **argv); 32 33 int main(int argc, const char **argv) { 34 // If argv[0] is or ends with 'gcov', always be gcov compatible 35 if (sys::path::stem(argv[0]).endswith_lower("gcov")) 36 return gcov_main(argc, argv); 37 38 // Check if we are invoking a specific tool command. 39 if (argc > 1) { 40 int (*func)(int, const char **) = nullptr; 41 42 StringRef command = argv[1]; 43 if (command.equals_lower("show")) 44 func = show_main; 45 else if (command.equals_lower("report")) 46 func = report_main; 47 else if (command.equals_lower("convert-for-testing")) 48 func = convert_for_testing_main; 49 else if (command.equals_lower("gcov")) 50 func = gcov_main; 51 52 if (func) { 53 std::string Invocation = std::string(argv[0]) + " " + argv[1]; 54 argv[1] = Invocation.c_str(); 55 return func(argc - 1, argv + 1); 56 } 57 } 58 59 // Give a warning and fall back to gcov 60 errs().changeColor(raw_ostream::RED); 61 errs() << "warning:"; 62 // Assume that argv[1] wasn't a command when it stats with a '-' or is a 63 // filename (i.e. contains a '.') 64 if (argc > 1 && !StringRef(argv[1]).startswith("-") && 65 StringRef(argv[1]).find(".") == StringRef::npos) 66 errs() << " Unrecognized command '" << argv[1] << "'."; 67 errs() << " Using the gcov compatible mode " 68 "(this behaviour may be dropped in the future)."; 69 errs().resetColor(); 70 errs() << "\n"; 71 72 return gcov_main(argc, argv); 73 } 74