mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
53daa8e8f3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195310 91177308-0d34-0410-b5e6-96231b3b80d8
324 lines
10 KiB
C++
324 lines
10 KiB
C++
//===- GCOVr.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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// GCOVFile implementation.
|
|
|
|
/// ~GCOVFile - Delete GCOVFile and its content.
|
|
GCOVFile::~GCOVFile() {
|
|
DeleteContainerPointers(Functions);
|
|
}
|
|
|
|
/// isGCDAFile - Return true if Format identifies a .gcda file.
|
|
static bool isGCDAFile(GCOV::GCOVFormat Format) {
|
|
return Format == GCOV::GCDA_402 || Format == GCOV::GCDA_404;
|
|
}
|
|
|
|
/// isGCNOFile - Return true if Format identifies a .gcno file.
|
|
static bool isGCNOFile(GCOV::GCOVFormat Format) {
|
|
return Format == GCOV::GCNO_402 || Format == GCOV::GCNO_404;
|
|
}
|
|
|
|
/// read - Read GCOV buffer.
|
|
bool GCOVFile::read(GCOVBuffer &Buffer) {
|
|
GCOV::GCOVFormat Format = Buffer.readGCOVFormat();
|
|
if (Format == GCOV::InvalidGCOV)
|
|
return false;
|
|
|
|
if (isGCNOFile(Format)) {
|
|
if (!Buffer.readInt(Checksum)) return false;
|
|
while (true) {
|
|
if (!Buffer.readFunctionTag()) break;
|
|
GCOVFunction *GFun = new GCOVFunction();
|
|
if (!GFun->read(Buffer, Format))
|
|
return false;
|
|
Functions.push_back(GFun);
|
|
}
|
|
} else if (isGCDAFile(Format)) {
|
|
uint32_t Checksum2;
|
|
if (!Buffer.readInt(Checksum2)) return false;
|
|
if (Checksum != Checksum2) {
|
|
errs() << "File checksum does not match.\n";
|
|
return false;
|
|
}
|
|
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 to dbgs() for debugging purposes.
|
|
void GCOVFile::dump() const {
|
|
for (SmallVectorImpl<GCOVFunction *>::const_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 (SmallVectorImpl<GCOVFunction *>::iterator I = Functions.begin(),
|
|
E = Functions.end(); I != E; ++I)
|
|
(*I)->collectLineCounts(FI);
|
|
FI.setRunCount(RunCount);
|
|
FI.setProgramCount(ProgramCount);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// GCOVFunction implementation.
|
|
|
|
/// ~GCOVFunction - Delete GCOVFunction and its content.
|
|
GCOVFunction::~GCOVFunction() {
|
|
DeleteContainerPointers(Blocks);
|
|
}
|
|
|
|
/// 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) {
|
|
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
|
|
|
|
if (!Buff.readString(Name)) return false;
|
|
|
|
if (Format == GCOV::GCNO_402 || Format == GCOV::GCNO_404)
|
|
if (!Buff.readString(Filename)) return false;
|
|
|
|
if (Format == GCOV::GCDA_402 || Format == GCOV::GCDA_404) {
|
|
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;
|
|
}
|
|
|
|
if (!Buff.readInt(LineNumber)) return false;
|
|
|
|
// read blocks.
|
|
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;
|
|
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;
|
|
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];
|
|
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);
|
|
}
|
|
}
|
|
if (!Buff.readInt(Dummy)) return false; // flag
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
|
|
void GCOVFunction::dump() const {
|
|
dbgs() << "===== " << Name << " @ " << Filename << ":" << LineNumber << "\n";
|
|
for (SmallVectorImpl<GCOVBlock *>::const_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 (SmallVectorImpl<GCOVBlock *>::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();
|
|
Lines.clear();
|
|
}
|
|
|
|
/// collectLineCounts - Collect line counts. This must be used after
|
|
/// reading .gcno and .gcda files.
|
|
void GCOVBlock::collectLineCounts(FileInfo &FI) {
|
|
for (SmallVectorImpl<uint32_t>::iterator I = Lines.begin(),
|
|
E = Lines.end(); I != E; ++I)
|
|
FI.addLineCount(Parent.getFilename(), *I, Counter);
|
|
}
|
|
|
|
/// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
|
|
void GCOVBlock::dump() const {
|
|
dbgs() << "Block : " << Number << " Counter : " << Counter << "\n";
|
|
if (!Edges.empty()) {
|
|
dbgs() << "\tEdges : ";
|
|
for (SmallVectorImpl<uint32_t>::const_iterator I = Edges.begin(), E = Edges.end();
|
|
I != E; ++I)
|
|
dbgs() << (*I) << ",";
|
|
dbgs() << "\n";
|
|
}
|
|
if (!Lines.empty()) {
|
|
dbgs() << "\tLines : ";
|
|
for (SmallVectorImpl<uint32_t>::const_iterator I = Lines.begin(),
|
|
E = Lines.end(); I != E; ++I)
|
|
dbgs() << (*I) << ",";
|
|
dbgs() << "\n";
|
|
}
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FileInfo implementation.
|
|
|
|
/// print - Print source files with collected line count information.
|
|
void FileInfo::print(raw_fd_ostream &OS, StringRef gcnoFile,
|
|
StringRef gcdaFile) const {
|
|
for (StringMap<LineCounts>::const_iterator I = LineInfo.begin(),
|
|
E = LineInfo.end(); I != E; ++I) {
|
|
StringRef Filename = I->first();
|
|
OwningPtr<MemoryBuffer> Buff;
|
|
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
|
|
errs() << Filename << ": " << ec.message() << "\n";
|
|
return;
|
|
}
|
|
StringRef AllLines = Buff->getBuffer();
|
|
|
|
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";
|
|
|
|
const LineCounts &L = I->second;
|
|
uint32_t i = 0;
|
|
while (!AllLines.empty()) {
|
|
LineCounts::const_iterator CountIt = L.find(i);
|
|
if (CountIt != L.end()) {
|
|
if (CountIt->second == 0)
|
|
OS << " #####:";
|
|
else
|
|
OS << format("%9" PRIu64 ":", CountIt->second);
|
|
} else {
|
|
OS << " -:";
|
|
}
|
|
std::pair<StringRef, StringRef> P = AllLines.split('\n');
|
|
if (AllLines != P.first)
|
|
OS << format("%5u:", i+1) << P.first;
|
|
OS << "\n";
|
|
AllLines = P.second;
|
|
++i;
|
|
}
|
|
}
|
|
}
|