-//===- tools/llvm-cov/llvm-cov.cpp - LLVM coverage tool -------------------===//
+//===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/GCOV.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MemoryObject.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
-using namespace llvm;
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
-static cl::opt<bool>
-DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
+using namespace llvm;
-static cl::opt<std::string>
-InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
+/// \brief The main entry point for the 'show' subcommand.
+int showMain(int argc, const char *argv[]);
-static cl::opt<std::string>
-InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
+/// \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[]);
-//===----------------------------------------------------------------------===//
-int main(int argc, char **argv) {
- // Print a stack trace if we signal out.
- sys::PrintStackTraceOnErrorSignal();
- PrettyStackTraceProgram X(argc, argv);
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+/// \brief The main entry point for the gcov compatible coverage tool.
+int gcovMain(int argc, const char *argv[]);
- cl::ParseCommandLineOptions(argc, argv, "llvm cov\n");
+/// \brief Top level help.
+int helpMain(int argc, const char *argv[]) {
+ errs() << "OVERVIEW: LLVM code coverage tool\n\n"
+ << "USAGE: llvm-cov {gcov|report|show}\n";
+ return 0;
+}
- GCOVFile GF;
- if (InputGCNO.empty())
- errs() << " " << argv[0] << ": No gcov input file!\n";
+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);
- OwningPtr<MemoryBuffer> GCNO_Buff;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
- errs() << InputGCNO << ": " << ec.message() << "\n";
- return 1;
- }
- GCOVBuffer GCNO_GB(GCNO_Buff.take());
- if (!GF.read(GCNO_GB)) {
- errs() << "Invalid .gcno File!\n";
- return 1;
- }
+ // 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 (!InputGCDA.empty()) {
- OwningPtr<MemoryBuffer> GCDA_Buff;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
- errs() << InputGCDA << ": " << ec.message() << "\n";
- return 1;
- }
- GCOVBuffer GCDA_GB(GCDA_Buff.take());
- if (!GF.read(GCDA_GB)) {
- errs() << "Invalid .gcda File!\n";
- return 1;
+ if (Func) {
+ std::string Invocation = std::string(argv[0]) + " " + argv[1];
+ argv[1] = Invocation.c_str();
+ return Func(argc - 1, argv + 1);
}
}
+ // Give a warning and fall back to gcov
+ errs().changeColor(raw_ostream::RED);
+ errs() << "warning:";
+ // Assume that argv[1] wasn't a command when it stats with a '-' or is a
+ // filename (i.e. contains a '.')
+ if (argc > 1 && !StringRef(argv[1]).startswith("-") &&
+ StringRef(argv[1]).find(".") == StringRef::npos)
+ errs() << " Unrecognized command '" << argv[1] << "'.";
+ errs() << " Using the gcov compatible mode "
+ "(this behaviour may be dropped in the future).";
+ errs().resetColor();
+ errs() << "\n";
- if (DumpGCOV)
- GF.dump();
-
- FileInfo FI;
- GF.collectLineCounts(FI);
- return 0;
+ return gcovMain(argc, argv);
}