[llvm-commits] [llvm] r140712 - in /llvm/trunk/tools: Makefile llvm-cov/ llvm-cov/CMakeLists.txt llvm-cov/GCOVReader.cpp llvm-cov/GCOVReader.h llvm-cov/Makefile llvm-cov/llvm-cov.cpp
Devang Patel
dpatel at apple.com
Wed Sep 28 11:50:00 PDT 2011
Author: dpatel
Date: Wed Sep 28 13:50:00 2011
New Revision: 140712
URL: http://llvm.org/viewvc/llvm-project?rev=140712&view=rev
Log:
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;
: }
:
:
Added:
llvm/trunk/tools/llvm-cov/
llvm/trunk/tools/llvm-cov/CMakeLists.txt
llvm/trunk/tools/llvm-cov/GCOVReader.cpp
llvm/trunk/tools/llvm-cov/GCOVReader.h
llvm/trunk/tools/llvm-cov/Makefile
llvm/trunk/tools/llvm-cov/llvm-cov.cpp
Modified:
llvm/trunk/tools/Makefile
Modified: llvm/trunk/tools/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/Makefile?rev=140712&r1=140711&r2=140712&view=diff
==============================================================================
--- llvm/trunk/tools/Makefile (original)
+++ llvm/trunk/tools/Makefile Wed Sep 28 13:50:00 2011
@@ -26,7 +26,7 @@
lli llvm-extract llvm-mc \
bugpoint llvm-bcanalyzer llvm-stub \
llvm-diff macho-dump llvm-objdump \
- llvm-rtdyld llvm-dwarfdump
+ llvm-rtdyld llvm-dwarfdump llvm-cov
# Let users override the set of tools to build from the command line.
ifdef ONLY_TOOLS
Added: llvm/trunk/tools/llvm-cov/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/CMakeLists.txt?rev=140712&view=auto
==============================================================================
--- llvm/trunk/tools/llvm-cov/CMakeLists.txt (added)
+++ llvm/trunk/tools/llvm-cov/CMakeLists.txt Wed Sep 28 13:50:00 2011
@@ -0,0 +1,6 @@
+set(LLVM_LINK_COMPONENTS instrumentation )
+
+add_llvm_tool(llvm-cov
+ GCOVReader.cpp
+ llvm-cov.cpp
+ )
Added: llvm/trunk/tools/llvm-cov/GCOVReader.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/GCOVReader.cpp?rev=140712&view=auto
==============================================================================
--- llvm/trunk/tools/llvm-cov/GCOVReader.cpp (added)
+++ llvm/trunk/tools/llvm-cov/GCOVReader.cpp Wed Sep 28 13:50:00 2011
@@ -0,0 +1,276 @@
+//===- tools/llvm-cov/GCOVReader.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.
+//
+//===----------------------------------------------------------------------===//
+//
+// GCOVReader implements the interface to read coverage files that use 'gcov'
+// format.
+//
+//
+//===----------------------------------------------------------------------===//
+
+#include "GCOVReader.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/Support/MemoryObject.h"
+#include "llvm/Support/system_error.h"
+using namespace llvm;
+
+//===----------------------------------------------------------------------===//
+// GCOVFile implementation.
+
+/// ~GCOVFile - Delete GCOVFile and its content.
+GCOVFile::~GCOVFile() {
+ DeleteContainerPointers(Functions);
+}
+
+/// read - Read GCOV buffer.
+bool GCOVFile::read(GCOVBuffer &Buffer) {
+ Format = Buffer.readGCOVFormat();
+ if (Format == InvalidGCOV)
+ return false;
+
+ unsigned i = 0;
+ while(1) {
+ GCOVFunction *GFun = NULL;
+ if(Format == GCDA_402 || Format == GCDA_404) {
+ if (i < Functions.size())
+ GFun = Functions[i];
+ } else
+ GFun = new GCOVFunction();
+
+ if (GFun && GFun->read(Buffer, Format)) {
+ if(Format == GCNO_402 || Format == GCNO_404)
+ Functions.push_back(GFun);
+ }
+ else {
+ delete GFun;
+ break;
+ }
+ ++i;
+ }
+ return true;
+}
+
+/// dump - Dump GCOVFile content on standard out for debugging purposes.
+void GCOVFile::dump() {
+ for (SmallVector<GCOVFunction *, 16>::iterator I = Functions.begin(),
+ E = Functions.end(); I != E; ++I)
+ (*I)->dump();
+}
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVFile::collectLineCounts(FileInfo &FI) {
+ for (SmallVector<GCOVFunction *, 16>::iterator I = Functions.begin(),
+ E = Functions.end(); I != E; ++I)
+ (*I)->collectLineCounts(FI);
+ FI.print();
+}
+
+//===----------------------------------------------------------------------===//
+// GCOVFunction implementation.
+
+/// ~GCOVFunction - Delete GCOVFunction and its content.
+GCOVFunction::~GCOVFunction() {
+ DeleteContainerPointers(Blocks);
+}
+
+/// read - Read a aunction from the buffer. Return false if buffer cursor
+/// does not point to a function tag.
+bool GCOVFunction::read(GCOVBuffer &Buff, GCOVFormat Format) {
+ if (!Buff.readFunctionTag())
+ return false;
+
+ Buff.readInt(); // Function header length
+ Ident = Buff.readInt();
+ Buff.readInt(); // Checksum #1
+ if (Format != GCNO_402)
+ Buff.readInt(); // Checksum #2
+
+ Name = Buff.readString();
+ if(Format == GCNO_402 || Format == GCNO_404)
+ Filename = Buff.readString();
+
+ if(Format == GCDA_402 || Format == GCDA_404) {
+ Buff.readArcTag();
+ uint32_t Count = Buff.readInt() / 2;
+ for (unsigned i = 0, e = Count; i != e; ++i) {
+ Blocks[i]->addCount(Buff.readInt64());
+ }
+ return true;;
+ }
+
+ LineNumber = Buff.readInt();
+
+ // read blocks.
+ assert (Buff.readBlockTag() && "Block Tag not found!");
+ uint32_t BlockCount = Buff.readInt();
+ for (int i = 0, e = BlockCount; i != e; ++i) {
+ Buff.readInt(); // Block flags;
+ Blocks.push_back(new GCOVBlock(i));
+ }
+
+ // read edges.
+ while (Buff.readEdgeTag()) {
+ uint32_t EdgeCount = (Buff.readInt() - 1) / 2;
+ uint32_t BlockNo = Buff.readInt();
+ assert (BlockNo < BlockCount && "Unexpected Block number!");
+ for (int i = 0, e = EdgeCount; i != e; ++i) {
+ Blocks[BlockNo]->addEdge(Buff.readInt());
+ Buff.readInt(); // Edge flag
+ }
+ }
+
+ // read line table.
+ while (Buff.readLineTag()) {
+ uint32_t LineTableLength = Buff.readInt();
+ uint32_t Size = Buff.getCursor() + LineTableLength*4;
+ uint32_t BlockNo = Buff.readInt();
+ assert (BlockNo < BlockCount && "Unexpected Block number!");
+ GCOVBlock *Block = Blocks[BlockNo];
+ Buff.readInt(); // flag
+ while (Buff.getCursor() != (Size - 4)) {
+ StringRef Filename = Buff.readString();
+ if (Buff.getCursor() == (Size - 4)) break;
+ while (uint32_t L = Buff.readInt())
+ Block->addLine(Filename, L);
+ }
+ Buff.readInt(); // flag
+ }
+ return true;
+}
+
+/// dump - Dump GCOVFunction content on standard out for debugging purposes.
+void GCOVFunction::dump() {
+ outs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
+ for (SmallVector<GCOVBlock *, 16>::iterator I = Blocks.begin(),
+ E = Blocks.end(); I != E; ++I)
+ (*I)->dump();
+}
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVFunction::collectLineCounts(FileInfo &FI) {
+ for (SmallVector<GCOVBlock *, 16>::iterator I = Blocks.begin(),
+ E = Blocks.end(); I != E; ++I)
+ (*I)->collectLineCounts(FI);
+}
+
+//===----------------------------------------------------------------------===//
+// GCOVBlock implementation.
+
+/// ~GCOVBlock - Delete GCOVBlock and its content.
+GCOVBlock::~GCOVBlock() {
+ Edges.clear();
+ DeleteContainerSeconds(Lines);
+}
+
+void GCOVBlock::addLine(StringRef Filename, uint32_t LineNo) {
+ GCOVLines *&LinesForFile = Lines[Filename];
+ if (!LinesForFile)
+ LinesForFile = new GCOVLines();
+ LinesForFile->add(LineNo);
+}
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVBlock::collectLineCounts(FileInfo &FI) {
+ for (StringMap<GCOVLines *>::iterator I = Lines.begin(),
+ E = Lines.end(); I != E; ++I)
+ I->second->collectLineCounts(FI, I->first(), Counter);
+}
+
+/// dump - Dump GCOVBlock content on standard out for debugging purposes.
+void GCOVBlock::dump() {
+ outs() << "Block : " << Number << " Counter : " << Counter << "\n";
+ if (!Edges.empty()) {
+ outs() << "\tEdges : ";
+ for (SmallVector<uint32_t, 16>::iterator I = Edges.begin(), E = Edges.end();
+ I != E; ++I)
+ outs() << (*I) << ",";
+ outs() << "\n";
+ }
+ if (!Lines.empty()) {
+ outs() << "\tLines : ";
+ for (StringMap<GCOVLines *>::iterator LI = Lines.begin(),
+ LE = Lines.end(); LI != LE; ++LI) {
+ outs() << LI->first() << " -> ";
+ LI->second->dump();
+ outs() << "\n";
+ }
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// GCOVLines implementation.
+
+/// collectLineCounts - Collect line counts. This must be used after
+/// reading .gcno and .gcda files.
+void GCOVLines::collectLineCounts(FileInfo &FI, StringRef Filename,
+ uint32_t Count) {
+ for (SmallVector<uint32_t, 16>::iterator I = Lines.begin(),
+ E = Lines.end(); I != E; ++I)
+ FI.addLineCount(Filename, *I, Count);
+}
+
+/// dump - Dump GCOVLines content on standard out for debugging purposes.
+void GCOVLines::dump() {
+ for (SmallVector<uint32_t, 16>::iterator I = Lines.begin(),
+ E = Lines.end(); I != E; ++I)
+ outs() << (*I) << ",";
+}
+
+//===----------------------------------------------------------------------===//
+// FileInfo implementation.
+
+/// addLineCount - Add line count for the given line number in a file.
+void FileInfo::addLineCount(StringRef Filename, uint32_t Line, uint32_t Count) {
+ if (LineInfo.find(Filename) == LineInfo.end()) {
+ OwningPtr<MemoryBuffer> Buff;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
+ errs() << Filename << ": " << ec.message() << "\n";
+ return;
+ }
+ StringRef AllLines = Buff.take()->getBuffer();
+ LineCounts L(AllLines.count('\n')+2);
+ L[Line-1] = Count;
+ LineInfo[Filename] = L;
+ return;
+ }
+ LineCounts &L = LineInfo[Filename];
+ L[Line-1] = Count;
+}
+
+/// print - Print source files with collected line count information.
+void FileInfo::print() {
+ for (StringMap<LineCounts>::iterator I = LineInfo.begin(), E = LineInfo.end();
+ I != E; ++I) {
+ StringRef Filename = I->first();
+ outs() << Filename << "\n";
+ LineCounts &L = LineInfo[Filename];
+ OwningPtr<MemoryBuffer> Buff;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
+ errs() << Filename << ": " << ec.message() << "\n";
+ return;
+ }
+ StringRef AllLines = Buff.take()->getBuffer();
+ for (unsigned i = 0, e = L.size(); i != e; ++i) {
+ if (L[i])
+ outs() << L[i] << ":\t";
+ else
+ outs() << " :\t";
+ std::pair<StringRef, StringRef> P = AllLines.split('\n');
+ if (AllLines != P.first)
+ outs() << P.first;
+ outs() << "\n";
+ AllLines = P.second;
+ }
+ }
+}
+
+
Added: llvm/trunk/tools/llvm-cov/GCOVReader.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/GCOVReader.h?rev=140712&view=auto
==============================================================================
--- llvm/trunk/tools/llvm-cov/GCOVReader.h (added)
+++ llvm/trunk/tools/llvm-cov/GCOVReader.h Wed Sep 28 13:50:00 2011
@@ -0,0 +1,225 @@
+//===-- tools/cov/GCOVReader.h - LLVM coverage tool -------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This header provides the interface to read coverage files that use 'gcov'
+// format.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef GCOVREADER_H
+#define GCOVREADER_H
+
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+
+class GCOVFunction;
+class GCOVBlock;
+class GCOVLines;
+class FileInfo;
+
+enum GCOVFormat {
+ InvalidGCOV,
+ GCNO_402,
+ GCNO_404,
+ GCDA_402,
+ GCDA_404
+};
+
+/// GCOVBuffer - A wrapper around MemoryBuffer to provid GCOV specific
+/// read operations.
+class GCOVBuffer {
+public:
+ GCOVBuffer(MemoryBuffer *B) : Buffer(B), Cursor(0) {}
+
+ /// readGCOVFormat - Read GCOV signature at the beginning of buffer.
+ enum GCOVFormat readGCOVFormat() {
+ StringRef Magic = Buffer->getBuffer().slice(0, 12);
+ Cursor = 12;
+ if (Magic == "oncg*404MVLL")
+ return GCNO_404;
+ else if (Magic == "oncg*204MVLL")
+ return GCNO_402;
+ else if (Magic == "adcg*404MVLL")
+ return GCDA_404;
+ else if (Magic == "adcg*204MVLL")
+ return GCDA_402;
+
+ Cursor = 0;
+ return InvalidGCOV;
+ }
+
+ /// readFunctionTag - If cursor points to a function tag then increment the
+ /// cursor and return true otherwise return false.
+ bool readFunctionTag() {
+ StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ if (Tag.empty() ||
+ Tag[0] != '\0' || Tag[1] != '\0' ||
+ Tag[2] != '\0' || Tag[3] != '\1') {
+ return false;
+ }
+ Cursor += 4;
+ return true;
+ }
+
+ /// readBlockTag - If cursor points to a block tag then increment the
+ /// cursor and return true otherwise return false.
+ bool readBlockTag() {
+ StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ if (Tag.empty() ||
+ Tag[0] != '\0' || Tag[1] != '\0' ||
+ Tag[2] != '\x41' || Tag[3] != '\x01') {
+ return false;
+ }
+ Cursor += 4;
+ return true;
+ }
+
+ /// readEdgeTag - If cursor points to an edge tag then increment the
+ /// cursor and return true otherwise return false.
+ bool readEdgeTag() {
+ StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ if (Tag.empty() ||
+ Tag[0] != '\0' || Tag[1] != '\0' ||
+ Tag[2] != '\x43' || Tag[3] != '\x01') {
+ return false;
+ }
+ Cursor += 4;
+ return true;
+ }
+
+ /// readLineTag - If cursor points to a line tag then increment the
+ /// cursor and return true otherwise return false.
+ bool readLineTag() {
+ StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ if (Tag.empty() ||
+ Tag[0] != '\0' || Tag[1] != '\0' ||
+ Tag[2] != '\x45' || Tag[3] != '\x01') {
+ return false;
+ }
+ Cursor += 4;
+ return true;
+ }
+
+ /// readArcTag - If cursor points to an gcda arc tag then increment the
+ /// cursor and return true otherwise return false.
+ bool readArcTag() {
+ StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ if (Tag.empty() ||
+ Tag[0] != '\0' || Tag[1] != '\0' ||
+ Tag[2] != '\xa1' || Tag[3] != '\1') {
+ return false;
+ }
+ Cursor += 4;
+ return true;
+ }
+
+ uint32_t readInt() {
+ uint32_t Result;
+ StringRef Str = Buffer->getBuffer().slice(Cursor, Cursor+4);
+ assert (Str.empty() == false && "Unexpected memory buffer end!");
+ Cursor += 4;
+ Result = *(uint32_t *)(Str.data());
+ return Result;
+ }
+
+ uint64_t readInt64() {
+ uint64_t Lo = readInt();
+ uint64_t Hi = readInt();
+ uint64_t Result = Lo | (Hi << 32);
+ return Result;
+ }
+
+ StringRef readString() {
+ uint32_t Len = readInt() * 4;
+ StringRef Str = Buffer->getBuffer().slice(Cursor, Cursor+Len);
+ Cursor += Len;
+ return Str;
+ }
+
+ uint64_t getCursor() const { return Cursor; }
+private:
+ MemoryBuffer *Buffer;
+ uint64_t Cursor;
+};
+
+/// GCOVFile - Collects file information.
+class GCOVFile {
+public:
+ GCOVFile() : Format(InvalidGCOV) {}
+ ~GCOVFile();
+ bool read(GCOVBuffer &Buffer);
+ void dump();
+ void collectLineCounts(FileInfo &FI);
+private:
+ enum GCOVFormat Format;
+ SmallVector<GCOVFunction *, 16> Functions;
+};
+
+/// GCOVFunction - Collects function information.
+class GCOVFunction {
+public:
+ GCOVFunction() : Ident(0), LineNumber(0) {}
+ ~GCOVFunction();
+ bool read(GCOVBuffer &Buffer, GCOVFormat Format);
+ void dump();
+ void collectLineCounts(FileInfo &FI);
+private:
+ uint32_t Ident;
+ uint32_t LineNumber;
+ StringRef Name;
+ StringRef Filename;
+ SmallVector<GCOVBlock *, 16> Blocks;
+};
+
+/// GCOVBlock - Collects block information.
+class GCOVBlock {
+public:
+ GCOVBlock(uint32_t N) : Number(N), Counter(0) {}
+ ~GCOVBlock();
+ void addEdge(uint32_t N) { Edges.push_back(N); }
+ void addLine(StringRef Filename, uint32_t LineNo);
+ void addCount(uint64_t N) { Counter = N; }
+ void dump();
+ void collectLineCounts(FileInfo &FI);
+private:
+ uint32_t Number;
+ uint64_t Counter;
+ SmallVector<uint32_t, 16> Edges;
+ StringMap<GCOVLines *> Lines;
+};
+
+/// GCOVLines - A wrapper around a vector of int to keep track of line nos.
+class GCOVLines {
+public:
+ ~GCOVLines() { Lines.clear(); }
+ void add(uint32_t N) { Lines.push_back(N); }
+ void collectLineCounts(FileInfo &FI, StringRef Filename, uint32_t Count);
+ void dump();
+
+private:
+ SmallVector<uint32_t, 4> Lines;
+};
+
+typedef SmallVector<uint32_t, 16> LineCounts;
+class FileInfo {
+public:
+ void addLineCount(StringRef Filename, uint32_t Line, uint32_t Count);
+ void print();
+private:
+ StringMap<LineCounts> LineInfo;
+};
+
+
+}
+
+#endif
Added: llvm/trunk/tools/llvm-cov/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/Makefile?rev=140712&view=auto
==============================================================================
--- llvm/trunk/tools/llvm-cov/Makefile (added)
+++ llvm/trunk/tools/llvm-cov/Makefile Wed Sep 28 13:50:00 2011
@@ -0,0 +1,18 @@
+##===- tools/llvm-gcov/Makefile ----------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+
+TOOLNAME = llvm-cov
+LINK_COMPONENTS := instrumentation
+
+# This tool has no plugins, optimize startup time.
+TOOL_NO_EXPORTS = 1
+
+include $(LEVEL)/Makefile.common
Added: llvm/trunk/tools/llvm-cov/llvm-cov.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/llvm-cov.cpp?rev=140712&view=auto
==============================================================================
--- llvm/trunk/tools/llvm-cov/llvm-cov.cpp (added)
+++ llvm/trunk/tools/llvm-cov/llvm-cov.cpp Wed Sep 28 13:50:00 2011
@@ -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;
+}
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