1 //===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // llvm-cov is a command line tools to analyze and report coverage information.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/ADT/StringRef.h"
15 #include "llvm/ADT/StringSwitch.h"
16 #include "llvm/Support/Path.h"
17 #include "llvm/Support/Process.h"
18 #include "llvm/Support/raw_ostream.h"
23 /// \brief The main entry point for the 'show' subcommand.
24 int showMain(int argc, const char *argv[]);
26 /// \brief The main entry point for the 'report' subcommand.
27 int reportMain(int argc, const char *argv[]);
29 /// \brief The main entry point for the 'convert-for-testing' subcommand.
30 int convertForTestingMain(int argc, const char *argv[]);
32 /// \brief The main entry point for the gcov compatible coverage tool.
33 int gcovMain(int argc, const char *argv[]);
35 /// \brief Top level help.
36 static int helpMain(int argc, const char *argv[]) {
37 errs() << "Usage: llvm-cov {gcov|report|show} [OPTION]...\n\n"
38 << "Shows code coverage information.\n\n"
40 << " gcov: Work with the gcov format.\n"
41 << " show: Annotate source files using instrprof style coverage.\n"
42 << " report: Summarize instrprof style coverage information.\n";
46 int main(int argc, const char **argv) {
47 // If argv[0] is or ends with 'gcov', always be gcov compatible
48 if (sys::path::stem(argv[0]).endswith_lower("gcov"))
49 return gcovMain(argc, argv);
51 // Check if we are invoking a specific tool command.
53 typedef int (*MainFunction)(int, const char *[]);
54 MainFunction Func = StringSwitch<MainFunction>(argv[1])
55 .Case("convert-for-testing", convertForTestingMain)
56 .Case("gcov", gcovMain)
57 .Case("report", reportMain)
58 .Case("show", showMain)
59 .Cases("-h", "-help", "--help", helpMain)
63 std::string Invocation = std::string(argv[0]) + " " + argv[1];
64 argv[1] = Invocation.c_str();
65 return Func(argc - 1, argv + 1);
70 if (sys::Process::StandardErrHasColors())
71 errs().changeColor(raw_ostream::RED);
72 errs() << "Unrecognized command: " << argv[1] << ".\n\n";
73 if (sys::Process::StandardErrHasColors())