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-rw-r--r--contrib/llvm/lib/IR/GCOV.cpp297
1 files changed, 164 insertions, 133 deletions
diff --git a/contrib/llvm/lib/IR/GCOV.cpp b/contrib/llvm/lib/IR/GCOV.cpp
index ea2f0a6..f0f8c7d 100644
--- a/contrib/llvm/lib/IR/GCOV.cpp
+++ b/contrib/llvm/lib/IR/GCOV.cpp
@@ -7,14 +7,16 @@
//
//===----------------------------------------------------------------------===//
//
-// GCOV implements the interface to read and write coverage files that use
+// GCOV implements the interface to read and write coverage files that use
// 'gcov' format.
//
//===----------------------------------------------------------------------===//
+#include "llvm/Support/Debug.h"
#include "llvm/Support/GCOV.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Format.h"
#include "llvm/Support/MemoryObject.h"
#include "llvm/Support/system_error.h"
using namespace llvm;
@@ -43,27 +45,47 @@ bool GCOVFile::read(GCOVBuffer &Buffer) {
if (Format == GCOV::InvalidGCOV)
return false;
- unsigned i = 0;
- while (1) {
- GCOVFunction *GFun = NULL;
- if (isGCDAFile(Format)) {
- // Use existing function while reading .gcda file.
- assert(i < Functions.size() && ".gcda data does not match .gcno data");
- GFun = Functions[i];
- } else if (isGCNOFile(Format)){
- GFun = new GCOVFunction();
+ if (isGCNOFile(Format)) {
+ while (true) {
+ if (!Buffer.readFunctionTag()) break;
+ GCOVFunction *GFun = new GCOVFunction();
+ if (!GFun->read(Buffer, Format))
+ return false;
Functions.push_back(GFun);
}
- if (!GFun || !GFun->read(Buffer, Format))
- break;
- ++i;
}
+ else if (isGCDAFile(Format)) {
+ for (size_t i = 0, e = Functions.size(); i < e; ++i) {
+ if (!Buffer.readFunctionTag()) {
+ errs() << "Unexpected number of functions.\n";
+ return false;
+ }
+ if (!Functions[i]->read(Buffer, Format))
+ return false;
+ }
+ if (Buffer.readObjectTag()) {
+ uint32_t Length;
+ uint32_t Dummy;
+ if (!Buffer.readInt(Length)) return false;
+ if (!Buffer.readInt(Dummy)) return false; // checksum
+ if (!Buffer.readInt(Dummy)) return false; // num
+ if (!Buffer.readInt(RunCount)) return false;;
+ Buffer.advanceCursor(Length-3);
+ }
+ while (Buffer.readProgramTag()) {
+ uint32_t Length;
+ if (!Buffer.readInt(Length)) return false;
+ Buffer.advanceCursor(Length);
+ ++ProgramCount;
+ }
+ }
+
return true;
}
-/// dump - Dump GCOVFile content on standard out for debugging purposes.
+/// dump - Dump GCOVFile content to dbgs() for debugging purposes.
void GCOVFile::dump() {
- for (SmallVector<GCOVFunction *, 16>::iterator I = Functions.begin(),
+ for (SmallVectorImpl<GCOVFunction *>::iterator I = Functions.begin(),
E = Functions.end(); I != E; ++I)
(*I)->dump();
}
@@ -71,10 +93,11 @@ void GCOVFile::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)
+ for (SmallVectorImpl<GCOVFunction *>::iterator I = Functions.begin(),
+ E = Functions.end(); I != E; ++I)
(*I)->collectLineCounts(FI);
- FI.print();
+ FI.setRunCount(RunCount);
+ FI.setProgramCount(ProgramCount);
}
//===----------------------------------------------------------------------===//
@@ -85,77 +108,122 @@ GCOVFunction::~GCOVFunction() {
DeleteContainerPointers(Blocks);
}
-/// read - Read a aunction from the buffer. Return false if buffer cursor
+/// read - Read a function from the buffer. Return false if buffer cursor
/// does not point to a function tag.
bool GCOVFunction::read(GCOVBuffer &Buff, GCOV::GCOVFormat Format) {
- if (!Buff.readFunctionTag())
- return false;
+ uint32_t Dummy;
+ if (!Buff.readInt(Dummy)) return false; // Function header length
+ if (!Buff.readInt(Ident)) return false;
+ if (!Buff.readInt(Dummy)) return false; // Checksum #1
+ if (Format != GCOV::GCNO_402 && Format != GCOV::GCDA_402)
+ if (!Buff.readInt(Dummy)) return false; // Checksum #2
- Buff.readInt(); // Function header length
- Ident = Buff.readInt();
- Buff.readInt(); // Checksum #1
- if (Format != GCOV::GCNO_402)
- Buff.readInt(); // Checksum #2
+ if (!Buff.readString(Name)) return false;
- Name = Buff.readString();
if (Format == GCOV::GCNO_402 || Format == GCOV::GCNO_404)
- Filename = Buff.readString();
+ if (!Buff.readString(Filename)) return false;
if (Format == GCOV::GCDA_402 || Format == GCOV::GCDA_404) {
- Buff.readArcTag();
- uint32_t Count = Buff.readInt() / 2;
- for (unsigned i = 0, e = Count; i != e; ++i) {
- Blocks[i]->addCount(Buff.readInt64());
+ if (!Buff.readArcTag()) {
+ errs() << "Arc tag not found.\n";
+ return false;
+ }
+ uint32_t Count;
+ if (!Buff.readInt(Count)) return false;
+ Count /= 2;
+
+ // This for loop adds the counts for each block. A second nested loop is
+ // required to combine the edge counts that are contained in the GCDA file.
+ for (uint32_t Line = 0; Count > 0; ++Line) {
+ if (Line >= Blocks.size()) {
+ errs() << "Unexpected number of edges.\n";
+ return false;
+ }
+ GCOVBlock &Block = *Blocks[Line];
+ for (size_t Edge = 0, End = Block.getNumEdges(); Edge < End; ++Edge) {
+ if (Count == 0) {
+ errs() << "Unexpected number of edges.\n";
+ return false;
+ }
+ uint64_t ArcCount;
+ if (!Buff.readInt64(ArcCount)) return false;
+ Block.addCount(ArcCount);
+ --Count;
+ }
}
return true;
}
- LineNumber = Buff.readInt();
+ if (!Buff.readInt(LineNumber)) return false;
// read blocks.
- bool BlockTagFound = Buff.readBlockTag();
- (void)BlockTagFound;
- assert(BlockTagFound && "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));
+ if (!Buff.readBlockTag()) {
+ errs() << "Block tag not found.\n";
+ return false;
+ }
+ uint32_t BlockCount;
+ if (!Buff.readInt(BlockCount)) return false;
+ for (uint32_t i = 0, e = BlockCount; i != e; ++i) {
+ if (!Buff.readInt(Dummy)) return false; // Block flags;
+ Blocks.push_back(new GCOVBlock(*this, 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
+ uint32_t EdgeCount;
+ if (!Buff.readInt(EdgeCount)) return false;
+ EdgeCount = (EdgeCount - 1) / 2;
+ uint32_t BlockNo;
+ if (!Buff.readInt(BlockNo)) return false;
+ if (BlockNo >= BlockCount) {
+ errs() << "Unexpected block number.\n";
+ return false;
+ }
+ for (uint32_t i = 0, e = EdgeCount; i != e; ++i) {
+ uint32_t Dst;
+ if (!Buff.readInt(Dst)) return false;
+ Blocks[BlockNo]->addEdge(Dst);
+ if (!Buff.readInt(Dummy)) return false; // 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!");
+ uint32_t LineTableLength;
+ if (!Buff.readInt(LineTableLength)) return false;
+ uint32_t EndPos = Buff.getCursor() + LineTableLength*4;
+ uint32_t BlockNo;
+ if (!Buff.readInt(BlockNo)) return false;
+ if (BlockNo >= BlockCount) {
+ errs() << "Unexpected block number.\n";
+ return false;
+ }
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);
+ if (!Buff.readInt(Dummy)) return false; // flag
+ while (Buff.getCursor() != (EndPos - 4)) {
+ StringRef F;
+ if (!Buff.readString(F)) return false;
+ if (F != Filename) {
+ errs() << "Multiple sources for a single basic block.\n";
+ return false;
+ }
+ if (Buff.getCursor() == (EndPos - 4)) break;
+ while (true) {
+ uint32_t Line;
+ if (!Buff.readInt(Line)) return false;
+ if (!Line) break;
+ Block->addLine(Line);
+ }
}
- Buff.readInt(); // flag
+ if (!Buff.readInt(Dummy)) return false; // flag
}
return true;
}
-/// dump - Dump GCOVFunction content on standard out for debugging purposes.
+/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
void GCOVFunction::dump() {
- outs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
- for (SmallVector<GCOVBlock *, 16>::iterator I = Blocks.begin(),
+ dbgs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
+ for (SmallVectorImpl<GCOVBlock *>::iterator I = Blocks.begin(),
E = Blocks.end(); I != E; ++I)
(*I)->dump();
}
@@ -163,7 +231,7 @@ void GCOVFunction::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(),
+ for (SmallVectorImpl<GCOVBlock *>::iterator I = Blocks.begin(),
E = Blocks.end(); I != E; ++I)
(*I)->collectLineCounts(FI);
}
@@ -174,110 +242,73 @@ void GCOVFunction::collectLineCounts(FileInfo &FI) {
/// ~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);
+ Lines.clear();
}
/// 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(),
+ for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
E = Lines.end(); I != E; ++I)
- I->second->collectLineCounts(FI, I->first(), Counter);
+ FI.addLineCount(Parent.getFilename(), *I, Counter);
}
-/// dump - Dump GCOVBlock content on standard out for debugging purposes.
+/// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
void GCOVBlock::dump() {
- outs() << "Block : " << Number << " Counter : " << Counter << "\n";
+ dbgs() << "Block : " << Number << " Counter : " << Counter << "\n";
if (!Edges.empty()) {
- outs() << "\tEdges : ";
- for (SmallVector<uint32_t, 16>::iterator I = Edges.begin(), E = Edges.end();
+ dbgs() << "\tEdges : ";
+ for (SmallVectorImpl<uint32_t>::iterator I = Edges.begin(), E = Edges.end();
I != E; ++I)
- outs() << (*I) << ",";
- outs() << "\n";
+ dbgs() << (*I) << ",";
+ dbgs() << "\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";
- }
+ dbgs() << "\tLines : ";
+ for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
+ E = Lines.end(); I != E; ++I)
+ dbgs() << (*I) << ",";
+ dbgs() << "\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() {
+void FileInfo::print(raw_fd_ostream &OS, StringRef gcnoFile,
+ StringRef gcdaFile) {
for (StringMap<LineCounts>::iterator I = LineInfo.begin(), E = LineInfo.end();
I != E; ++I) {
StringRef Filename = I->first();
- outs() << Filename << "\n";
+ OS << " -: 0:Source:" << Filename << "\n";
+ OS << " -: 0:Graph:" << gcnoFile << "\n";
+ OS << " -: 0:Data:" << gcdaFile << "\n";
+ OS << " -: 0:Runs:" << RunCount << "\n";
+ OS << " -: 0:Programs:" << ProgramCount << "\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";
+ StringRef AllLines = Buff->getBuffer();
+ uint32_t i = 0;
+ while (!AllLines.empty()) {
+ if (L.find(i) != L.end()) {
+ if (L[i] == 0)
+ OS << " #####:";
+ else
+ OS << format("%9" PRIu64 ":", L[i]);
+ } else {
+ OS << " -:";
+ }
std::pair<StringRef, StringRef> P = AllLines.split('\n');
if (AllLines != P.first)
- outs() << P.first;
- outs() << "\n";
+ OS << format("%5u:", i+1) << P.first;
+ OS << "\n";
AllLines = P.second;
+ ++i;
}
}
}
-
-
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