//===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // llvm-cov is a command line tools to analyze and report coverage information. // //===----------------------------------------------------------------------===// #include "llvm/ADT/StringRef.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/Support/Path.h" #include "llvm/Support/Process.h" #include "llvm/Support/raw_ostream.h" #include <string> using namespace llvm; /// \brief The main entry point for the 'show' subcommand. int showMain(int argc, const char *argv[]); /// \brief The main entry point for the 'report' subcommand. int reportMain(int argc, const char *argv[]); /// \brief The main entry point for the 'convert-for-testing' subcommand. int convertForTestingMain(int argc, const char *argv[]); /// \brief The main entry point for the gcov compatible coverage tool. int gcovMain(int argc, const char *argv[]); /// \brief Top level help. static int helpMain(int argc, const char *argv[]) { errs() << "Usage: llvm-cov {gcov|report|show} [OPTION]...\n\n" << "Shows code coverage information.\n\n" << "Subcommands:\n" << " gcov: Work with the gcov format.\n" << " show: Annotate source files using instrprof style coverage.\n" << " report: Summarize instrprof style coverage information.\n"; return 0; } int main(int argc, const char **argv) { // If argv[0] is or ends with 'gcov', always be gcov compatible if (sys::path::stem(argv[0]).endswith_lower("gcov")) return gcovMain(argc, argv); // Check if we are invoking a specific tool command. if (argc > 1) { typedef int (*MainFunction)(int, const char *[]); MainFunction Func = StringSwitch<MainFunction>(argv[1]) .Case("convert-for-testing", convertForTestingMain) .Case("gcov", gcovMain) .Case("report", reportMain) .Case("show", showMain) .Cases("-h", "-help", "--help", helpMain) .Default(nullptr); if (Func) { std::string Invocation = std::string(argv[0]) + " " + argv[1]; argv[1] = Invocation.c_str(); return Func(argc - 1, argv + 1); } } if (argc > 1) { if (sys::Process::StandardErrHasColors()) errs().changeColor(raw_ostream::RED); errs() << "Unrecognized command: " << argv[1] << ".\n\n"; if (sys::Process::StandardErrHasColors()) errs().resetColor(); } helpMain(argc, argv); return 1; }