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"
22 using namespace llvm;
23
24 static cl::opt<bool>
25 DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
26
27 static cl::opt<std::string>
28 InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
29
30 static cl::opt<std::string>
31 InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
32
33
34 //===----------------------------------------------------------------------===//
main(int argc,char ** argv)35 int 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