1//===- tools/llvm-cov/llvm-cov.cpp - LLVM coverage tool -------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// llvm-cov is a command line tools to analyze and report coverage information.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/ADT/OwningPtr.h"
15#include "llvm/Support/CommandLine.h"
16#include "llvm/Support/GCOV.h"
17#include "llvm/Support/ManagedStatic.h"
18#include "llvm/Support/MemoryObject.h"
19#include "llvm/Support/PrettyStackTrace.h"
20#include "llvm/Support/Signals.h"
21#include "llvm/Support/system_error.h"
22using namespace llvm;
23
24static cl::opt<bool>
25DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
26
27static cl::opt<std::string>
28InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
29
30static cl::opt<std::string>
31InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
32
33
34//===----------------------------------------------------------------------===//
35int main(int argc, char **argv) {
36  // Print a stack trace if we signal out.
37  sys::PrintStackTraceOnErrorSignal();
38  PrettyStackTraceProgram X(argc, argv);
39  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
40
41  cl::ParseCommandLineOptions(argc, argv, "llvm cov\n");
42
43  GCOVFile GF;
44  if (InputGCNO.empty())
45    errs() << " " << argv[0] << ": No gcov input file!\n";
46
47  OwningPtr<MemoryBuffer> GCNO_Buff;
48  if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
49    errs() << InputGCNO << ": " << ec.message() << "\n";
50    return 1;
51  }
52  GCOVBuffer GCNO_GB(GCNO_Buff.take());
53  if (!GF.read(GCNO_GB)) {
54    errs() << "Invalid .gcno File!\n";
55    return 1;
56  }
57
58  if (!InputGCDA.empty()) {
59    OwningPtr<MemoryBuffer> GCDA_Buff;
60    if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
61      errs() << InputGCDA << ": " << ec.message() << "\n";
62      return 1;
63    }
64    GCOVBuffer GCDA_GB(GCDA_Buff.take());
65    if (!GF.read(GCDA_GB)) {
66      errs() << "Invalid .gcda File!\n";
67      return 1;
68    }
69  }
70
71
72  if (DumpGCOV)
73    GF.dump();
74
75  FileInfo FI;
76  GF.collectLineCounts(FI);
77  return 0;
78}
79