| //===- 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/CommandLine.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; |
| } |
| |
| /// \brief Top level version information. |
| static int versionMain(int argc, const char *argv[]) { |
| cl::PrintVersionMessage(); |
| 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) |
| .Cases("-version", "--version", versionMain) |
| .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; |
| } |