llvm-cov: Very basic top level help

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220926 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Bogner
2014-10-30 20:29:48 +00:00
parent aad4ea476e
commit d33e67757e

View File

@@ -12,6 +12,7 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h" #include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Path.h" #include "llvm/Support/Path.h"
#include <string> #include <string>
@@ -30,6 +31,13 @@ int convert_for_testing_main(int argc, const char **argv);
/// \brief The main entry point for the gcov compatible coverage tool. /// \brief The main entry point for the gcov compatible coverage tool.
int gcov_main(int argc, const char **argv); int gcov_main(int argc, const char **argv);
/// \brief Top level help.
int help_main(int argc, const char **argv) {
errs() << "OVERVIEW: LLVM code coverage tool\n\n"
<< "USAGE: llvm-cov {gcov|report|show}\n";
return 0;
}
int main(int argc, const char **argv) { int main(int argc, const char **argv) {
// If argv[0] is or ends with 'gcov', always be gcov compatible // If argv[0] is or ends with 'gcov', always be gcov compatible
if (sys::path::stem(argv[0]).endswith_lower("gcov")) if (sys::path::stem(argv[0]).endswith_lower("gcov"))
@@ -37,17 +45,15 @@ int main(int argc, const char **argv) {
// Check if we are invoking a specific tool command. // Check if we are invoking a specific tool command.
if (argc > 1) { if (argc > 1) {
int (*func)(int, const char **) = nullptr; typedef int (*MainFunction)(int, const char **);
MainFunction func =
StringRef command = argv[1]; StringSwitch<MainFunction>(argv[1])
if (command.equals_lower("show")) .Case("convert-for-testing", convert_for_testing_main)
func = show_main; .Case("gcov", gcov_main)
else if (command.equals_lower("report")) .Case("report", report_main)
func = report_main; .Case("show", show_main)
else if (command.equals_lower("convert-for-testing")) .Cases("-h", "-help", "--help", help_main)
func = convert_for_testing_main; .Default(nullptr);
else if (command.equals_lower("gcov"))
func = gcov_main;
if (func) { if (func) {
std::string Invocation = std::string(argv[0]) + " " + argv[1]; std::string Invocation = std::string(argv[0]) + " " + argv[1];