Introduce llvm-cov.
Add llvm-cov skeleton. It has initial support to read coverage info generated by GCOVProfiling.cpp.
Today, you can do
prompt> clang a.c -ftest-coverage -fprofile-arcs -o a
prompt> ./a
prompt> llvm-cov -gcno a.gcno -gcda a.gcda
a.c
: #include "a.h"
:
: int main() {
: int i = 0;
: if (i) {
1: int j = 0;
1: j = 1;
1: } else {
: int k = 1;
: k = 2;
: }
1: return 0;
: }
:
:
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140712 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-cov/llvm-cov.cpp b/tools/llvm-cov/llvm-cov.cpp
new file mode 100644
index 0000000..466deff
--- /dev/null
+++ b/tools/llvm-cov/llvm-cov.cpp
@@ -0,0 +1,83 @@
+//===- tools/llvm-cov/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 "GCOVReader.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Support/CommandLine.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;
+
+static cl::opt<bool>
+DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
+
+static cl::opt<std::string>
+InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
+
+static cl::opt<std::string>
+InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
+
+
+//===----------------------------------------------------------------------===//
+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.
+
+ cl::ParseCommandLineOptions(argc, argv, "llvm cov\n");
+
+
+ GCOVFile GF;
+ if (InputGCNO.empty())
+ errs() << " " << argv[0] << ": No gcov input file!\n";
+
+ OwningPtr<MemoryBuffer> Buff;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, Buff)) {
+ errs() << InputGCNO << ": " << ec.message() << "\n";
+ return 1;
+ }
+ GCOVBuffer GB(Buff.take());
+
+ if (!GF.read(GB)) {
+ errs() << "Invalid .gcno File!\n";
+ return 1;
+ }
+
+ if (!InputGCDA.empty()) {
+ OwningPtr<MemoryBuffer> Buff2;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, Buff2)) {
+ errs() << InputGCDA << ": " << ec.message() << "\n";
+ return 1;
+ }
+ GCOVBuffer GB2(Buff2.take());
+
+ if (!GF.read(GB2)) {
+ errs() << "Invalid .gcda File!\n";
+ return 1;
+ }
+ }
+
+
+ if (DumpGCOV)
+ GF.dump();
+
+ FileInfo FI;
+ GF.collectLineCounts(FI);
+ return 0;
+}