remove unused sources
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//===- GCOV.cpp - LLVM coverage tool --------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// GCOV implements the interface to read and write coverage files that use
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// 'gcov' format.
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//
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//===----------------------------------------------------------------------===//
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#include "GCOV.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <system_error>
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using namespace llvm;
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//===----------------------------------------------------------------------===//
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// GCOVFile implementation.
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/// readGCNO - Read GCNO buffer.
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bool GCOVFile::readGCNO(GCOVBuffer &Buffer) {
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if (!Buffer.readGCNOFormat())
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return false;
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if (!Buffer.readGCOVVersion(Version))
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return false;
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if (!Buffer.readInt(Checksum))
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return false;
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while (true) {
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if (!Buffer.readFunctionTag())
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break;
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auto GFun = make_unique<GCOVFunction>(*this);
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if (!GFun->readGCNO(Buffer, Version))
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return false;
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Functions.push_back(std::move(GFun));
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}
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GCNOInitialized = true;
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return true;
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}
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/// readGCDA - Read GCDA buffer. It is required that readGCDA() can only be
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/// called after readGCNO().
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bool GCOVFile::readGCDA(GCOVBuffer &Buffer) {
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assert(GCNOInitialized && "readGCDA() can only be called after readGCNO()");
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if (!Buffer.readGCDAFormat())
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return false;
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GCOV::GCOVVersion GCDAVersion;
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if (!Buffer.readGCOVVersion(GCDAVersion))
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return false;
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if (Version != GCDAVersion) {
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errs() << "GCOV versions do not match.\n";
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return false;
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}
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uint32_t GCDAChecksum;
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if (!Buffer.readInt(GCDAChecksum))
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return false;
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if (Checksum != GCDAChecksum) {
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errs() << "File checksums do not match: " << Checksum
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<< " != " << GCDAChecksum << ".\n";
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return false;
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}
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for (size_t i = 0, e = Functions.size(); i < e; ++i) {
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if (!Buffer.readFunctionTag()) {
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errs() << "Unexpected number of functions.\n";
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return false;
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}
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if (!Functions[i]->readGCDA(Buffer, Version))
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return false;
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}
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if (Buffer.readObjectTag()) {
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uint32_t Length;
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uint32_t Dummy;
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if (!Buffer.readInt(Length))
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return false;
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if (!Buffer.readInt(Dummy))
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return false; // checksum
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if (!Buffer.readInt(Dummy))
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return false; // num
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if (!Buffer.readInt(RunCount))
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return false;
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Buffer.advanceCursor(Length - 3);
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}
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while (Buffer.readProgramTag()) {
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uint32_t Length;
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if (!Buffer.readInt(Length))
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return false;
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Buffer.advanceCursor(Length);
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++ProgramCount;
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}
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return true;
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}
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void GCOVFile::print(raw_ostream &OS) const {
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for (const auto &FPtr : Functions)
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FPtr->print(OS);
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}
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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/// dump - Dump GCOVFile content to dbgs() for debugging purposes.
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LLVM_DUMP_METHOD void GCOVFile::dump() const {
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print(dbgs());
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}
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#endif
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/// collectLineCounts - Collect line counts. This must be used after
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/// reading .gcno and .gcda files.
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void GCOVFile::collectLineCounts(FileInfo &FI) {
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for (const auto &FPtr : Functions)
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FPtr->collectLineCounts(FI);
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FI.setRunCount(RunCount);
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FI.setProgramCount(ProgramCount);
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}
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//===----------------------------------------------------------------------===//
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// GCOVFunction implementation.
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/// readGCNO - Read a function from the GCNO buffer. Return false if an error
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/// occurs.
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bool GCOVFunction::readGCNO(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
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uint32_t Dummy;
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if (!Buff.readInt(Dummy))
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return false; // Function header length
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if (!Buff.readInt(Ident))
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return false;
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if (!Buff.readInt(Checksum))
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return false;
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if (Version != GCOV::V402) {
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uint32_t CfgChecksum;
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if (!Buff.readInt(CfgChecksum))
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return false;
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if (Parent.getChecksum() != CfgChecksum) {
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errs() << "File checksums do not match: " << Parent.getChecksum()
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<< " != " << CfgChecksum << " in (" << Name << ").\n";
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return false;
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}
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}
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if (!Buff.readString(Name))
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return false;
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if (!Buff.readString(Filename))
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return false;
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if (!Buff.readInt(LineNumber))
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return false;
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// read blocks.
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if (!Buff.readBlockTag()) {
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errs() << "Block tag not found.\n";
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return false;
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}
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uint32_t BlockCount;
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if (!Buff.readInt(BlockCount))
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return false;
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for (uint32_t i = 0, e = BlockCount; i != e; ++i) {
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if (!Buff.readInt(Dummy))
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return false; // Block flags;
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Blocks.push_back(make_unique<GCOVBlock>(*this, i));
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}
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// read edges.
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while (Buff.readEdgeTag()) {
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uint32_t EdgeCount;
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if (!Buff.readInt(EdgeCount))
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return false;
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EdgeCount = (EdgeCount - 1) / 2;
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uint32_t BlockNo;
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if (!Buff.readInt(BlockNo))
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return false;
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if (BlockNo >= BlockCount) {
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errs() << "Unexpected block number: " << BlockNo << " (in " << Name
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<< ").\n";
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return false;
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}
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for (uint32_t i = 0, e = EdgeCount; i != e; ++i) {
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uint32_t Dst;
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if (!Buff.readInt(Dst))
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return false;
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Edges.push_back(make_unique<GCOVEdge>(*Blocks[BlockNo], *Blocks[Dst]));
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GCOVEdge *Edge = Edges.back().get();
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Blocks[BlockNo]->addDstEdge(Edge);
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Blocks[Dst]->addSrcEdge(Edge);
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if (!Buff.readInt(Dummy))
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return false; // Edge flag
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}
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}
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// read line table.
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while (Buff.readLineTag()) {
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uint32_t LineTableLength;
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// Read the length of this line table.
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if (!Buff.readInt(LineTableLength))
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return false;
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uint32_t EndPos = Buff.getCursor() + LineTableLength * 4;
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uint32_t BlockNo;
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// Read the block number this table is associated with.
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if (!Buff.readInt(BlockNo))
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return false;
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if (BlockNo >= BlockCount) {
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errs() << "Unexpected block number: " << BlockNo << " (in " << Name
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<< ").\n";
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return false;
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}
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GCOVBlock &Block = *Blocks[BlockNo];
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// Read the word that pads the beginning of the line table. This may be a
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// flag of some sort, but seems to always be zero.
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if (!Buff.readInt(Dummy))
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return false;
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// Line information starts here and continues up until the last word.
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if (Buff.getCursor() != (EndPos - sizeof(uint32_t))) {
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StringRef F;
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// Read the source file name.
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if (!Buff.readString(F))
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return false;
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if (Filename != F) {
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errs() << "Multiple sources for a single basic block: " << Filename
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<< " != " << F << " (in " << Name << ").\n";
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return false;
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}
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// Read lines up to, but not including, the null terminator.
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while (Buff.getCursor() < (EndPos - 2 * sizeof(uint32_t))) {
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uint32_t Line;
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if (!Buff.readInt(Line))
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return false;
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// Line 0 means this instruction was injected by the compiler. Skip it.
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if (!Line)
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continue;
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Block.addLine(Line);
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}
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// Read the null terminator.
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if (!Buff.readInt(Dummy))
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return false;
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}
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// The last word is either a flag or padding, it isn't clear which. Skip
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// over it.
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if (!Buff.readInt(Dummy))
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return false;
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}
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return true;
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}
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/// readGCDA - Read a function from the GCDA buffer. Return false if an error
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/// occurs.
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bool GCOVFunction::readGCDA(GCOVBuffer &Buff, GCOV::GCOVVersion Version) {
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uint32_t HeaderLength;
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if (!Buff.readInt(HeaderLength))
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return false; // Function header length
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uint64_t EndPos = Buff.getCursor() + HeaderLength * sizeof(uint32_t);
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uint32_t GCDAIdent;
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if (!Buff.readInt(GCDAIdent))
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return false;
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if (Ident != GCDAIdent) {
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errs() << "Function identifiers do not match: " << Ident
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<< " != " << GCDAIdent << " (in " << Name << ").\n";
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return false;
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}
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uint32_t GCDAChecksum;
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if (!Buff.readInt(GCDAChecksum))
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return false;
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if (Checksum != GCDAChecksum) {
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errs() << "Function checksums do not match: " << Checksum
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<< " != " << GCDAChecksum << " (in " << Name << ").\n";
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return false;
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}
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uint32_t CfgChecksum;
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if (Version != GCOV::V402) {
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if (!Buff.readInt(CfgChecksum))
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return false;
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if (Parent.getChecksum() != CfgChecksum) {
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errs() << "File checksums do not match: " << Parent.getChecksum()
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<< " != " << CfgChecksum << " (in " << Name << ").\n";
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return false;
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}
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}
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if (Buff.getCursor() < EndPos) {
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StringRef GCDAName;
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if (!Buff.readString(GCDAName))
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return false;
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if (Name != GCDAName) {
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errs() << "Function names do not match: " << Name << " != " << GCDAName
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<< ".\n";
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return false;
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}
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}
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if (!Buff.readArcTag()) {
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errs() << "Arc tag not found (in " << Name << ").\n";
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return false;
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}
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uint32_t Count;
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if (!Buff.readInt(Count))
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return false;
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Count /= 2;
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// This for loop adds the counts for each block. A second nested loop is
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// required to combine the edge counts that are contained in the GCDA file.
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for (uint32_t BlockNo = 0; Count > 0; ++BlockNo) {
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// The last block is always reserved for exit block
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if (BlockNo >= Blocks.size()) {
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errs() << "Unexpected number of edges (in " << Name << ").\n";
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return false;
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}
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if (BlockNo == Blocks.size() - 1)
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errs() << "(" << Name << ") has arcs from exit block.\n";
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GCOVBlock &Block = *Blocks[BlockNo];
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for (size_t EdgeNo = 0, End = Block.getNumDstEdges(); EdgeNo < End;
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++EdgeNo) {
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if (Count == 0) {
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errs() << "Unexpected number of edges (in " << Name << ").\n";
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return false;
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}
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uint64_t ArcCount;
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if (!Buff.readInt64(ArcCount))
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return false;
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Block.addCount(EdgeNo, ArcCount);
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--Count;
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}
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Block.sortDstEdges();
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}
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return true;
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}
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/// getEntryCount - Get the number of times the function was called by
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/// retrieving the entry block's count.
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uint64_t GCOVFunction::getEntryCount() const {
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return Blocks.front()->getCount();
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}
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/// getExitCount - Get the number of times the function returned by retrieving
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/// the exit block's count.
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uint64_t GCOVFunction::getExitCount() const {
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return Blocks.back()->getCount();
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}
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void GCOVFunction::print(raw_ostream &OS) const {
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OS << "===== " << Name << " (" << Ident << ") @ " << Filename << ":"
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<< LineNumber << "\n";
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for (const auto &Block : Blocks)
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Block->print(OS);
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}
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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/// dump - Dump GCOVFunction content to dbgs() for debugging purposes.
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LLVM_DUMP_METHOD void GCOVFunction::dump() const {
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print(dbgs());
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}
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#endif
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/// collectLineCounts - Collect line counts. This must be used after
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/// reading .gcno and .gcda files.
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void GCOVFunction::collectLineCounts(FileInfo &FI) {
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// If the line number is zero, this is a function that doesn't actually appear
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// in the source file, so there isn't anything we can do with it.
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if (LineNumber == 0)
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return;
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for (const auto &Block : Blocks)
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Block->collectLineCounts(FI);
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FI.addFunctionLine(Filename, LineNumber, this);
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}
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//===----------------------------------------------------------------------===//
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// GCOVBlock implementation.
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/// ~GCOVBlock - Delete GCOVBlock and its content.
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GCOVBlock::~GCOVBlock() {
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SrcEdges.clear();
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DstEdges.clear();
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Lines.clear();
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}
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/// addCount - Add to block counter while storing the edge count. If the
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/// destination has no outgoing edges, also update that block's count too.
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void GCOVBlock::addCount(size_t DstEdgeNo, uint64_t N) {
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|
||||||
assert(DstEdgeNo < DstEdges.size()); // up to caller to ensure EdgeNo is valid
|
|
||||||
DstEdges[DstEdgeNo]->Count = N;
|
|
||||||
Counter += N;
|
|
||||||
if (!DstEdges[DstEdgeNo]->Dst.getNumDstEdges())
|
|
||||||
DstEdges[DstEdgeNo]->Dst.Counter += N;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// sortDstEdges - Sort destination edges by block number, nop if already
|
|
||||||
/// sorted. This is required for printing branch info in the correct order.
|
|
||||||
void GCOVBlock::sortDstEdges() {
|
|
||||||
if (!DstEdgesAreSorted) {
|
|
||||||
SortDstEdgesFunctor SortEdges;
|
|
||||||
std::stable_sort(DstEdges.begin(), DstEdges.end(), SortEdges);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// collectLineCounts - Collect line counts. This must be used after
|
|
||||||
/// reading .gcno and .gcda files.
|
|
||||||
void GCOVBlock::collectLineCounts(FileInfo &FI) {
|
|
||||||
for (uint32_t N : Lines)
|
|
||||||
FI.addBlockLine(Parent.getFilename(), N, this);
|
|
||||||
}
|
|
||||||
|
|
||||||
void GCOVBlock::print(raw_ostream &OS) const {
|
|
||||||
OS << "Block : " << Number << " Counter : " << Counter << "\n";
|
|
||||||
if (!SrcEdges.empty()) {
|
|
||||||
OS << "\tSource Edges : ";
|
|
||||||
for (const GCOVEdge *Edge : SrcEdges)
|
|
||||||
OS << Edge->Src.Number << " (" << Edge->Count << "), ";
|
|
||||||
OS << "\n";
|
|
||||||
}
|
|
||||||
if (!DstEdges.empty()) {
|
|
||||||
OS << "\tDestination Edges : ";
|
|
||||||
for (const GCOVEdge *Edge : DstEdges)
|
|
||||||
OS << Edge->Dst.Number << " (" << Edge->Count << "), ";
|
|
||||||
OS << "\n";
|
|
||||||
}
|
|
||||||
if (!Lines.empty()) {
|
|
||||||
OS << "\tLines : ";
|
|
||||||
for (uint32_t N : Lines)
|
|
||||||
OS << (N) << ",";
|
|
||||||
OS << "\n";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
|
|
||||||
/// dump - Dump GCOVBlock content to dbgs() for debugging purposes.
|
|
||||||
LLVM_DUMP_METHOD void GCOVBlock::dump() const {
|
|
||||||
print(dbgs());
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
//===----------------------------------------------------------------------===//
|
|
||||||
// FileInfo implementation.
|
|
||||||
|
|
||||||
// Safe integer division, returns 0 if numerator is 0.
|
|
||||||
static uint32_t safeDiv(uint64_t Numerator, uint64_t Divisor) {
|
|
||||||
if (!Numerator)
|
|
||||||
return 0;
|
|
||||||
return Numerator / Divisor;
|
|
||||||
}
|
|
||||||
|
|
||||||
// This custom division function mimics gcov's branch ouputs:
|
|
||||||
// - Round to closest whole number
|
|
||||||
// - Only output 0% or 100% if it's exactly that value
|
|
||||||
static uint32_t branchDiv(uint64_t Numerator, uint64_t Divisor) {
|
|
||||||
if (!Numerator)
|
|
||||||
return 0;
|
|
||||||
if (Numerator == Divisor)
|
|
||||||
return 100;
|
|
||||||
|
|
||||||
uint8_t Res = (Numerator * 100 + Divisor / 2) / Divisor;
|
|
||||||
if (Res == 0)
|
|
||||||
return 1;
|
|
||||||
if (Res == 100)
|
|
||||||
return 99;
|
|
||||||
return Res;
|
|
||||||
}
|
|
||||||
|
|
||||||
namespace {
|
|
||||||
struct formatBranchInfo {
|
|
||||||
formatBranchInfo(const GCOV::Options &Options, uint64_t Count, uint64_t Total)
|
|
||||||
: Options(Options), Count(Count), Total(Total) {}
|
|
||||||
|
|
||||||
void print(raw_ostream &OS) const {
|
|
||||||
if (!Total)
|
|
||||||
OS << "never executed";
|
|
||||||
else if (Options.BranchCount)
|
|
||||||
OS << "taken " << Count;
|
|
||||||
else
|
|
||||||
OS << "taken " << branchDiv(Count, Total) << "%";
|
|
||||||
}
|
|
||||||
|
|
||||||
const GCOV::Options &Options;
|
|
||||||
uint64_t Count;
|
|
||||||
uint64_t Total;
|
|
||||||
};
|
|
||||||
|
|
||||||
static raw_ostream &operator<<(raw_ostream &OS, const formatBranchInfo &FBI) {
|
|
||||||
FBI.print(OS);
|
|
||||||
return OS;
|
|
||||||
}
|
|
||||||
|
|
||||||
class LineConsumer {
|
|
||||||
std::unique_ptr<MemoryBuffer> Buffer;
|
|
||||||
StringRef Remaining;
|
|
||||||
|
|
||||||
public:
|
|
||||||
LineConsumer(StringRef Filename) {
|
|
||||||
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
|
|
||||||
MemoryBuffer::getFileOrSTDIN(Filename);
|
|
||||||
if (std::error_code EC = BufferOrErr.getError()) {
|
|
||||||
errs() << Filename << ": " << EC.message() << "\n";
|
|
||||||
Remaining = "";
|
|
||||||
} else {
|
|
||||||
Buffer = std::move(BufferOrErr.get());
|
|
||||||
Remaining = Buffer->getBuffer();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool empty() { return Remaining.empty(); }
|
|
||||||
void printNext(raw_ostream &OS, uint32_t LineNum) {
|
|
||||||
StringRef Line;
|
|
||||||
if (empty())
|
|
||||||
Line = "/*EOF*/";
|
|
||||||
else
|
|
||||||
std::tie(Line, Remaining) = Remaining.split("\n");
|
|
||||||
OS << format("%5u:", LineNum) << Line << "\n";
|
|
||||||
}
|
|
||||||
};
|
|
||||||
} // end anonymous namespace
|
|
||||||
|
|
||||||
/// Convert a path to a gcov filename. If PreservePaths is true, this
|
|
||||||
/// translates "/" to "#", ".." to "^", and drops ".", to match gcov.
|
|
||||||
static std::string mangleCoveragePath(StringRef Filename, bool PreservePaths) {
|
|
||||||
if (!PreservePaths)
|
|
||||||
return sys::path::filename(Filename).str();
|
|
||||||
|
|
||||||
// This behaviour is defined by gcov in terms of text replacements, so it's
|
|
||||||
// not likely to do anything useful on filesystems with different textual
|
|
||||||
// conventions.
|
|
||||||
llvm::SmallString<256> Result("");
|
|
||||||
StringRef::iterator I, S, E;
|
|
||||||
for (I = S = Filename.begin(), E = Filename.end(); I != E; ++I) {
|
|
||||||
if (*I != '/')
|
|
||||||
continue;
|
|
||||||
|
|
||||||
if (I - S == 1 && *S == '.') {
|
|
||||||
// ".", the current directory, is skipped.
|
|
||||||
} else if (I - S == 2 && *S == '.' && *(S + 1) == '.') {
|
|
||||||
// "..", the parent directory, is replaced with "^".
|
|
||||||
Result.append("^#");
|
|
||||||
} else {
|
|
||||||
if (S < I)
|
|
||||||
// Leave other components intact,
|
|
||||||
Result.append(S, I);
|
|
||||||
// And separate with "#".
|
|
||||||
Result.push_back('#');
|
|
||||||
}
|
|
||||||
S = I + 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (S < I)
|
|
||||||
Result.append(S, I);
|
|
||||||
return Result.str();
|
|
||||||
}
|
|
||||||
|
|
||||||
std::string FileInfo::getCoveragePath(StringRef Filename,
|
|
||||||
StringRef MainFilename) {
|
|
||||||
if (Options.NoOutput)
|
|
||||||
// This is probably a bug in gcov, but when -n is specified, paths aren't
|
|
||||||
// mangled at all, and the -l and -p options are ignored. Here, we do the
|
|
||||||
// same.
|
|
||||||
return Filename;
|
|
||||||
|
|
||||||
std::string CoveragePath;
|
|
||||||
if (Options.LongFileNames && !Filename.equals(MainFilename))
|
|
||||||
CoveragePath =
|
|
||||||
mangleCoveragePath(MainFilename, Options.PreservePaths) + "##";
|
|
||||||
CoveragePath += mangleCoveragePath(Filename, Options.PreservePaths) + ".gcov";
|
|
||||||
return CoveragePath;
|
|
||||||
}
|
|
||||||
|
|
||||||
std::unique_ptr<raw_ostream>
|
|
||||||
FileInfo::openCoveragePath(StringRef CoveragePath) {
|
|
||||||
if (Options.NoOutput)
|
|
||||||
return llvm::make_unique<raw_null_ostream>();
|
|
||||||
|
|
||||||
std::error_code EC;
|
|
||||||
auto OS = llvm::make_unique<raw_fd_ostream>(CoveragePath, EC,
|
|
||||||
sys::fs::F_Text);
|
|
||||||
if (EC) {
|
|
||||||
errs() << EC.message() << "\n";
|
|
||||||
return llvm::make_unique<raw_null_ostream>();
|
|
||||||
}
|
|
||||||
return std::move(OS);
|
|
||||||
}
|
|
||||||
|
|
||||||
/// print - Print source files with collected line count information.
|
|
||||||
void FileInfo::print(raw_ostream &InfoOS, StringRef MainFilename,
|
|
||||||
StringRef GCNOFile, StringRef GCDAFile) {
|
|
||||||
SmallVector<StringRef, 4> Filenames;
|
|
||||||
for (const auto &LI : LineInfo)
|
|
||||||
Filenames.push_back(LI.first());
|
|
||||||
std::sort(Filenames.begin(), Filenames.end());
|
|
||||||
|
|
||||||
for (StringRef Filename : Filenames) {
|
|
||||||
auto AllLines = LineConsumer(Filename);
|
|
||||||
|
|
||||||
std::string CoveragePath = getCoveragePath(Filename, MainFilename);
|
|
||||||
std::unique_ptr<raw_ostream> CovStream = openCoveragePath(CoveragePath);
|
|
||||||
raw_ostream &CovOS = *CovStream;
|
|
||||||
|
|
||||||
CovOS << " -: 0:Source:" << Filename << "\n";
|
|
||||||
CovOS << " -: 0:Graph:" << GCNOFile << "\n";
|
|
||||||
CovOS << " -: 0:Data:" << GCDAFile << "\n";
|
|
||||||
CovOS << " -: 0:Runs:" << RunCount << "\n";
|
|
||||||
CovOS << " -: 0:Programs:" << ProgramCount << "\n";
|
|
||||||
|
|
||||||
const LineData &Line = LineInfo[Filename];
|
|
||||||
GCOVCoverage FileCoverage(Filename);
|
|
||||||
for (uint32_t LineIndex = 0; LineIndex < Line.LastLine || !AllLines.empty();
|
|
||||||
++LineIndex) {
|
|
||||||
if (Options.BranchInfo) {
|
|
||||||
FunctionLines::const_iterator FuncsIt = Line.Functions.find(LineIndex);
|
|
||||||
if (FuncsIt != Line.Functions.end())
|
|
||||||
printFunctionSummary(CovOS, FuncsIt->second);
|
|
||||||
}
|
|
||||||
|
|
||||||
BlockLines::const_iterator BlocksIt = Line.Blocks.find(LineIndex);
|
|
||||||
if (BlocksIt == Line.Blocks.end()) {
|
|
||||||
// No basic blocks are on this line. Not an executable line of code.
|
|
||||||
CovOS << " -:";
|
|
||||||
AllLines.printNext(CovOS, LineIndex + 1);
|
|
||||||
} else {
|
|
||||||
const BlockVector &Blocks = BlocksIt->second;
|
|
||||||
|
|
||||||
// Add up the block counts to form line counts.
|
|
||||||
DenseMap<const GCOVFunction *, bool> LineExecs;
|
|
||||||
uint64_t LineCount = 0;
|
|
||||||
for (const GCOVBlock *Block : Blocks) {
|
|
||||||
if (Options.AllBlocks) {
|
|
||||||
// Only take the highest block count for that line.
|
|
||||||
uint64_t BlockCount = Block->getCount();
|
|
||||||
LineCount = LineCount > BlockCount ? LineCount : BlockCount;
|
|
||||||
} else {
|
|
||||||
// Sum up all of the block counts.
|
|
||||||
LineCount += Block->getCount();
|
|
||||||
}
|
|
||||||
|
|
||||||
if (Options.FuncCoverage) {
|
|
||||||
// This is a slightly convoluted way to most accurately gather line
|
|
||||||
// statistics for functions. Basically what is happening is that we
|
|
||||||
// don't want to count a single line with multiple blocks more than
|
|
||||||
// once. However, we also don't simply want to give the total line
|
|
||||||
// count to every function that starts on the line. Thus, what is
|
|
||||||
// happening here are two things:
|
|
||||||
// 1) Ensure that the number of logical lines is only incremented
|
|
||||||
// once per function.
|
|
||||||
// 2) If there are multiple blocks on the same line, ensure that the
|
|
||||||
// number of lines executed is incremented as long as at least
|
|
||||||
// one of the blocks are executed.
|
|
||||||
const GCOVFunction *Function = &Block->getParent();
|
|
||||||
if (FuncCoverages.find(Function) == FuncCoverages.end()) {
|
|
||||||
std::pair<const GCOVFunction *, GCOVCoverage> KeyValue(
|
|
||||||
Function, GCOVCoverage(Function->getName()));
|
|
||||||
FuncCoverages.insert(KeyValue);
|
|
||||||
}
|
|
||||||
GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
|
|
||||||
|
|
||||||
if (LineExecs.find(Function) == LineExecs.end()) {
|
|
||||||
if (Block->getCount()) {
|
|
||||||
++FuncCoverage.LinesExec;
|
|
||||||
LineExecs[Function] = true;
|
|
||||||
} else {
|
|
||||||
LineExecs[Function] = false;
|
|
||||||
}
|
|
||||||
++FuncCoverage.LogicalLines;
|
|
||||||
} else if (!LineExecs[Function] && Block->getCount()) {
|
|
||||||
++FuncCoverage.LinesExec;
|
|
||||||
LineExecs[Function] = true;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (LineCount == 0)
|
|
||||||
CovOS << " #####:";
|
|
||||||
else {
|
|
||||||
CovOS << format("%9" PRIu64 ":", LineCount);
|
|
||||||
++FileCoverage.LinesExec;
|
|
||||||
}
|
|
||||||
++FileCoverage.LogicalLines;
|
|
||||||
|
|
||||||
AllLines.printNext(CovOS, LineIndex + 1);
|
|
||||||
|
|
||||||
uint32_t BlockNo = 0;
|
|
||||||
uint32_t EdgeNo = 0;
|
|
||||||
for (const GCOVBlock *Block : Blocks) {
|
|
||||||
// Only print block and branch information at the end of the block.
|
|
||||||
if (Block->getLastLine() != LineIndex + 1)
|
|
||||||
continue;
|
|
||||||
if (Options.AllBlocks)
|
|
||||||
printBlockInfo(CovOS, *Block, LineIndex, BlockNo);
|
|
||||||
if (Options.BranchInfo) {
|
|
||||||
size_t NumEdges = Block->getNumDstEdges();
|
|
||||||
if (NumEdges > 1)
|
|
||||||
printBranchInfo(CovOS, *Block, FileCoverage, EdgeNo);
|
|
||||||
else if (Options.UncondBranch && NumEdges == 1)
|
|
||||||
printUncondBranchInfo(CovOS, EdgeNo,
|
|
||||||
(*Block->dst_begin())->Count);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
FileCoverages.push_back(std::make_pair(CoveragePath, FileCoverage));
|
|
||||||
}
|
|
||||||
|
|
||||||
// FIXME: There is no way to detect calls given current instrumentation.
|
|
||||||
if (Options.FuncCoverage)
|
|
||||||
printFuncCoverage(InfoOS);
|
|
||||||
printFileCoverage(InfoOS);
|
|
||||||
}
|
|
||||||
|
|
||||||
/// printFunctionSummary - Print function and block summary.
|
|
||||||
void FileInfo::printFunctionSummary(raw_ostream &OS,
|
|
||||||
const FunctionVector &Funcs) const {
|
|
||||||
for (const GCOVFunction *Func : Funcs) {
|
|
||||||
uint64_t EntryCount = Func->getEntryCount();
|
|
||||||
uint32_t BlocksExec = 0;
|
|
||||||
for (const GCOVBlock &Block : Func->blocks())
|
|
||||||
if (Block.getNumDstEdges() && Block.getCount())
|
|
||||||
++BlocksExec;
|
|
||||||
|
|
||||||
OS << "function " << Func->getName() << " called " << EntryCount
|
|
||||||
<< " returned " << safeDiv(Func->getExitCount() * 100, EntryCount)
|
|
||||||
<< "% blocks executed "
|
|
||||||
<< safeDiv(BlocksExec * 100, Func->getNumBlocks() - 1) << "%\n";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// printBlockInfo - Output counts for each block.
|
|
||||||
void FileInfo::printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
|
|
||||||
uint32_t LineIndex, uint32_t &BlockNo) const {
|
|
||||||
if (Block.getCount() == 0)
|
|
||||||
OS << " $$$$$:";
|
|
||||||
else
|
|
||||||
OS << format("%9" PRIu64 ":", Block.getCount());
|
|
||||||
OS << format("%5u-block %2u\n", LineIndex + 1, BlockNo++);
|
|
||||||
}
|
|
||||||
|
|
||||||
/// printBranchInfo - Print conditional branch probabilities.
|
|
||||||
void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
|
|
||||||
GCOVCoverage &Coverage, uint32_t &EdgeNo) {
|
|
||||||
SmallVector<uint64_t, 16> BranchCounts;
|
|
||||||
uint64_t TotalCounts = 0;
|
|
||||||
for (const GCOVEdge *Edge : Block.dsts()) {
|
|
||||||
BranchCounts.push_back(Edge->Count);
|
|
||||||
TotalCounts += Edge->Count;
|
|
||||||
if (Block.getCount())
|
|
||||||
++Coverage.BranchesExec;
|
|
||||||
if (Edge->Count)
|
|
||||||
++Coverage.BranchesTaken;
|
|
||||||
++Coverage.Branches;
|
|
||||||
|
|
||||||
if (Options.FuncCoverage) {
|
|
||||||
const GCOVFunction *Function = &Block.getParent();
|
|
||||||
GCOVCoverage &FuncCoverage = FuncCoverages.find(Function)->second;
|
|
||||||
if (Block.getCount())
|
|
||||||
++FuncCoverage.BranchesExec;
|
|
||||||
if (Edge->Count)
|
|
||||||
++FuncCoverage.BranchesTaken;
|
|
||||||
++FuncCoverage.Branches;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
for (uint64_t N : BranchCounts)
|
|
||||||
OS << format("branch %2u ", EdgeNo++)
|
|
||||||
<< formatBranchInfo(Options, N, TotalCounts) << "\n";
|
|
||||||
}
|
|
||||||
|
|
||||||
/// printUncondBranchInfo - Print unconditional branch probabilities.
|
|
||||||
void FileInfo::printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
|
|
||||||
uint64_t Count) const {
|
|
||||||
OS << format("unconditional %2u ", EdgeNo++)
|
|
||||||
<< formatBranchInfo(Options, Count, Count) << "\n";
|
|
||||||
}
|
|
||||||
|
|
||||||
// printCoverage - Print generic coverage info used by both printFuncCoverage
|
|
||||||
// and printFileCoverage.
|
|
||||||
void FileInfo::printCoverage(raw_ostream &OS,
|
|
||||||
const GCOVCoverage &Coverage) const {
|
|
||||||
OS << format("Lines executed:%.2f%% of %u\n",
|
|
||||||
double(Coverage.LinesExec) * 100 / Coverage.LogicalLines,
|
|
||||||
Coverage.LogicalLines);
|
|
||||||
if (Options.BranchInfo) {
|
|
||||||
if (Coverage.Branches) {
|
|
||||||
OS << format("Branches executed:%.2f%% of %u\n",
|
|
||||||
double(Coverage.BranchesExec) * 100 / Coverage.Branches,
|
|
||||||
Coverage.Branches);
|
|
||||||
OS << format("Taken at least once:%.2f%% of %u\n",
|
|
||||||
double(Coverage.BranchesTaken) * 100 / Coverage.Branches,
|
|
||||||
Coverage.Branches);
|
|
||||||
} else {
|
|
||||||
OS << "No branches\n";
|
|
||||||
}
|
|
||||||
OS << "No calls\n"; // to be consistent with gcov
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// printFuncCoverage - Print per-function coverage info.
|
|
||||||
void FileInfo::printFuncCoverage(raw_ostream &OS) const {
|
|
||||||
for (const auto &FC : FuncCoverages) {
|
|
||||||
const GCOVCoverage &Coverage = FC.second;
|
|
||||||
OS << "Function '" << Coverage.Name << "'\n";
|
|
||||||
printCoverage(OS, Coverage);
|
|
||||||
OS << "\n";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// printFileCoverage - Print per-file coverage info.
|
|
||||||
void FileInfo::printFileCoverage(raw_ostream &OS) const {
|
|
||||||
for (const auto &FC : FileCoverages) {
|
|
||||||
const std::string &Filename = FC.first;
|
|
||||||
const GCOVCoverage &Coverage = FC.second;
|
|
||||||
OS << "File '" << Coverage.Name << "'\n";
|
|
||||||
printCoverage(OS, Coverage);
|
|
||||||
if (!Options.NoOutput)
|
|
||||||
OS << Coverage.Name << ":creating '" << Filename << "'\n";
|
|
||||||
OS << "\n";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
@ -1,460 +0,0 @@
|
||||||
//===- GCOV.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 and write coverage files that
|
|
||||||
// use 'gcov' format.
|
|
||||||
//
|
|
||||||
//===----------------------------------------------------------------------===//
|
|
||||||
|
|
||||||
#ifndef LLVM_PROFILEDATA_GCOV_H
|
|
||||||
#define LLVM_PROFILEDATA_GCOV_H
|
|
||||||
|
|
||||||
#include "llvm/ADT/DenseMap.h"
|
|
||||||
#include "llvm/ADT/MapVector.h"
|
|
||||||
#include "llvm/ADT/SmallVector.h"
|
|
||||||
#include "llvm/ADT/StringMap.h"
|
|
||||||
#include "llvm/ADT/StringRef.h"
|
|
||||||
#include "llvm/ADT/iterator.h"
|
|
||||||
#include "llvm/ADT/iterator_range.h"
|
|
||||||
#include "llvm/Support/MemoryBuffer.h"
|
|
||||||
#include "llvm/Support/raw_ostream.h"
|
|
||||||
#include <cassert>
|
|
||||||
#include <cstddef>
|
|
||||||
#include <cstdint>
|
|
||||||
#include <memory>
|
|
||||||
#include <string>
|
|
||||||
#include <utility>
|
|
||||||
|
|
||||||
namespace llvm {
|
|
||||||
|
|
||||||
class GCOVFunction;
|
|
||||||
class GCOVBlock;
|
|
||||||
class FileInfo;
|
|
||||||
|
|
||||||
namespace GCOV {
|
|
||||||
|
|
||||||
enum GCOVVersion { V402, V404, V704 };
|
|
||||||
|
|
||||||
/// \brief A struct for passing gcov options between functions.
|
|
||||||
struct Options {
|
|
||||||
Options(bool A, bool B, bool C, bool F, bool P, bool U, bool L, bool N)
|
|
||||||
: AllBlocks(A), BranchInfo(B), BranchCount(C), FuncCoverage(F),
|
|
||||||
PreservePaths(P), UncondBranch(U), LongFileNames(L), NoOutput(N) {}
|
|
||||||
|
|
||||||
bool AllBlocks;
|
|
||||||
bool BranchInfo;
|
|
||||||
bool BranchCount;
|
|
||||||
bool FuncCoverage;
|
|
||||||
bool PreservePaths;
|
|
||||||
bool UncondBranch;
|
|
||||||
bool LongFileNames;
|
|
||||||
bool NoOutput;
|
|
||||||
};
|
|
||||||
|
|
||||||
} // end namespace GCOV
|
|
||||||
|
|
||||||
/// GCOVBuffer - A wrapper around MemoryBuffer to provide GCOV specific
|
|
||||||
/// read operations.
|
|
||||||
class GCOVBuffer {
|
|
||||||
public:
|
|
||||||
GCOVBuffer(MemoryBuffer *B) : Buffer(B) {}
|
|
||||||
|
|
||||||
/// readGCNOFormat - Check GCNO signature is valid at the beginning of buffer.
|
|
||||||
bool readGCNOFormat() {
|
|
||||||
StringRef File = Buffer->getBuffer().slice(0, 4);
|
|
||||||
if (File != "oncg") {
|
|
||||||
errs() << "Unexpected file type: " << File << ".\n";
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
Cursor = 4;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// readGCDAFormat - Check GCDA signature is valid at the beginning of buffer.
|
|
||||||
bool readGCDAFormat() {
|
|
||||||
StringRef File = Buffer->getBuffer().slice(0, 4);
|
|
||||||
if (File != "adcg") {
|
|
||||||
errs() << "Unexpected file type: " << File << ".\n";
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
Cursor = 4;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// readGCOVVersion - Read GCOV version.
|
|
||||||
bool readGCOVVersion(GCOV::GCOVVersion &Version) {
|
|
||||||
StringRef VersionStr = Buffer->getBuffer().slice(Cursor, Cursor + 4);
|
|
||||||
if (VersionStr == "*204") {
|
|
||||||
Cursor += 4;
|
|
||||||
Version = GCOV::V402;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
if (VersionStr == "*404") {
|
|
||||||
Cursor += 4;
|
|
||||||
Version = GCOV::V404;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
if (VersionStr == "*704") {
|
|
||||||
Cursor += 4;
|
|
||||||
Version = GCOV::V704;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
errs() << "Unexpected version: " << VersionStr << ".\n";
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// 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;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// readObjectTag - If cursor points to an object summary tag then increment
|
|
||||||
/// the cursor and return true otherwise return false.
|
|
||||||
bool readObjectTag() {
|
|
||||||
StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
|
|
||||||
if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\0' ||
|
|
||||||
Tag[3] != '\xa1') {
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
Cursor += 4;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// readProgramTag - If cursor points to a program summary tag then increment
|
|
||||||
/// the cursor and return true otherwise return false.
|
|
||||||
bool readProgramTag() {
|
|
||||||
StringRef Tag = Buffer->getBuffer().slice(Cursor, Cursor + 4);
|
|
||||||
if (Tag.empty() || Tag[0] != '\0' || Tag[1] != '\0' || Tag[2] != '\0' ||
|
|
||||||
Tag[3] != '\xa3') {
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
Cursor += 4;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool readInt(uint32_t &Val) {
|
|
||||||
if (Buffer->getBuffer().size() < Cursor + 4) {
|
|
||||||
errs() << "Unexpected end of memory buffer: " << Cursor + 4 << ".\n";
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
StringRef Str = Buffer->getBuffer().slice(Cursor, Cursor + 4);
|
|
||||||
Cursor += 4;
|
|
||||||
Val = *(const uint32_t *)(Str.data());
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool readInt64(uint64_t &Val) {
|
|
||||||
uint32_t Lo, Hi;
|
|
||||||
if (!readInt(Lo) || !readInt(Hi))
|
|
||||||
return false;
|
|
||||||
Val = ((uint64_t)Hi << 32) | Lo;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool readString(StringRef &Str) {
|
|
||||||
uint32_t Len = 0;
|
|
||||||
// Keep reading until we find a non-zero length. This emulates gcov's
|
|
||||||
// behaviour, which appears to do the same.
|
|
||||||
while (Len == 0)
|
|
||||||
if (!readInt(Len))
|
|
||||||
return false;
|
|
||||||
Len *= 4;
|
|
||||||
if (Buffer->getBuffer().size() < Cursor + Len) {
|
|
||||||
errs() << "Unexpected end of memory buffer: " << Cursor + Len << ".\n";
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
Str = Buffer->getBuffer().slice(Cursor, Cursor + Len).split('\0').first;
|
|
||||||
Cursor += Len;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
uint64_t getCursor() const { return Cursor; }
|
|
||||||
void advanceCursor(uint32_t n) { Cursor += n * 4; }
|
|
||||||
|
|
||||||
private:
|
|
||||||
MemoryBuffer *Buffer;
|
|
||||||
uint64_t Cursor = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
/// GCOVFile - Collects coverage information for one pair of coverage file
|
|
||||||
/// (.gcno and .gcda).
|
|
||||||
class GCOVFile {
|
|
||||||
public:
|
|
||||||
GCOVFile() = default;
|
|
||||||
|
|
||||||
bool readGCNO(GCOVBuffer &Buffer);
|
|
||||||
bool readGCDA(GCOVBuffer &Buffer);
|
|
||||||
uint32_t getChecksum() const { return Checksum; }
|
|
||||||
void print(raw_ostream &OS) const;
|
|
||||||
void dump() const;
|
|
||||||
void collectLineCounts(FileInfo &FI);
|
|
||||||
|
|
||||||
private:
|
|
||||||
bool GCNOInitialized = false;
|
|
||||||
GCOV::GCOVVersion Version;
|
|
||||||
uint32_t Checksum = 0;
|
|
||||||
SmallVector<std::unique_ptr<GCOVFunction>, 16> Functions;
|
|
||||||
uint32_t RunCount = 0;
|
|
||||||
uint32_t ProgramCount = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
/// GCOVEdge - Collects edge information.
|
|
||||||
struct GCOVEdge {
|
|
||||||
GCOVEdge(GCOVBlock &S, GCOVBlock &D) : Src(S), Dst(D) {}
|
|
||||||
|
|
||||||
GCOVBlock &Src;
|
|
||||||
GCOVBlock &Dst;
|
|
||||||
uint64_t Count = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
/// GCOVFunction - Collects function information.
|
|
||||||
class GCOVFunction {
|
|
||||||
public:
|
|
||||||
using BlockIterator = pointee_iterator<SmallVectorImpl<
|
|
||||||
std::unique_ptr<GCOVBlock>>::const_iterator>;
|
|
||||||
|
|
||||||
GCOVFunction(GCOVFile &P) : Parent(P) {}
|
|
||||||
|
|
||||||
bool readGCNO(GCOVBuffer &Buffer, GCOV::GCOVVersion Version);
|
|
||||||
bool readGCDA(GCOVBuffer &Buffer, GCOV::GCOVVersion Version);
|
|
||||||
StringRef getName() const { return Name; }
|
|
||||||
StringRef getFilename() const { return Filename; }
|
|
||||||
size_t getNumBlocks() const { return Blocks.size(); }
|
|
||||||
uint64_t getEntryCount() const;
|
|
||||||
uint64_t getExitCount() const;
|
|
||||||
|
|
||||||
BlockIterator block_begin() const { return Blocks.begin(); }
|
|
||||||
BlockIterator block_end() const { return Blocks.end(); }
|
|
||||||
iterator_range<BlockIterator> blocks() const {
|
|
||||||
return make_range(block_begin(), block_end());
|
|
||||||
}
|
|
||||||
|
|
||||||
void print(raw_ostream &OS) const;
|
|
||||||
void dump() const;
|
|
||||||
void collectLineCounts(FileInfo &FI);
|
|
||||||
|
|
||||||
private:
|
|
||||||
GCOVFile &Parent;
|
|
||||||
uint32_t Ident = 0;
|
|
||||||
uint32_t Checksum;
|
|
||||||
uint32_t LineNumber = 0;
|
|
||||||
StringRef Name;
|
|
||||||
StringRef Filename;
|
|
||||||
SmallVector<std::unique_ptr<GCOVBlock>, 16> Blocks;
|
|
||||||
SmallVector<std::unique_ptr<GCOVEdge>, 16> Edges;
|
|
||||||
};
|
|
||||||
|
|
||||||
/// GCOVBlock - Collects block information.
|
|
||||||
class GCOVBlock {
|
|
||||||
struct EdgeWeight {
|
|
||||||
EdgeWeight(GCOVBlock *D) : Dst(D) {}
|
|
||||||
|
|
||||||
GCOVBlock *Dst;
|
|
||||||
uint64_t Count = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct SortDstEdgesFunctor {
|
|
||||||
bool operator()(const GCOVEdge *E1, const GCOVEdge *E2) {
|
|
||||||
return E1->Dst.Number < E2->Dst.Number;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
public:
|
|
||||||
using EdgeIterator = SmallVectorImpl<GCOVEdge *>::const_iterator;
|
|
||||||
|
|
||||||
GCOVBlock(GCOVFunction &P, uint32_t N) : Parent(P), Number(N) {}
|
|
||||||
~GCOVBlock();
|
|
||||||
|
|
||||||
const GCOVFunction &getParent() const { return Parent; }
|
|
||||||
void addLine(uint32_t N) { Lines.push_back(N); }
|
|
||||||
uint32_t getLastLine() const { return Lines.back(); }
|
|
||||||
void addCount(size_t DstEdgeNo, uint64_t N);
|
|
||||||
uint64_t getCount() const { return Counter; }
|
|
||||||
|
|
||||||
void addSrcEdge(GCOVEdge *Edge) {
|
|
||||||
assert(&Edge->Dst == this); // up to caller to ensure edge is valid
|
|
||||||
SrcEdges.push_back(Edge);
|
|
||||||
}
|
|
||||||
|
|
||||||
void addDstEdge(GCOVEdge *Edge) {
|
|
||||||
assert(&Edge->Src == this); // up to caller to ensure edge is valid
|
|
||||||
// Check if adding this edge causes list to become unsorted.
|
|
||||||
if (DstEdges.size() && DstEdges.back()->Dst.Number > Edge->Dst.Number)
|
|
||||||
DstEdgesAreSorted = false;
|
|
||||||
DstEdges.push_back(Edge);
|
|
||||||
}
|
|
||||||
|
|
||||||
size_t getNumSrcEdges() const { return SrcEdges.size(); }
|
|
||||||
size_t getNumDstEdges() const { return DstEdges.size(); }
|
|
||||||
void sortDstEdges();
|
|
||||||
|
|
||||||
EdgeIterator src_begin() const { return SrcEdges.begin(); }
|
|
||||||
EdgeIterator src_end() const { return SrcEdges.end(); }
|
|
||||||
iterator_range<EdgeIterator> srcs() const {
|
|
||||||
return make_range(src_begin(), src_end());
|
|
||||||
}
|
|
||||||
|
|
||||||
EdgeIterator dst_begin() const { return DstEdges.begin(); }
|
|
||||||
EdgeIterator dst_end() const { return DstEdges.end(); }
|
|
||||||
iterator_range<EdgeIterator> dsts() const {
|
|
||||||
return make_range(dst_begin(), dst_end());
|
|
||||||
}
|
|
||||||
|
|
||||||
void print(raw_ostream &OS) const;
|
|
||||||
void dump() const;
|
|
||||||
void collectLineCounts(FileInfo &FI);
|
|
||||||
|
|
||||||
private:
|
|
||||||
GCOVFunction &Parent;
|
|
||||||
uint32_t Number;
|
|
||||||
uint64_t Counter = 0;
|
|
||||||
bool DstEdgesAreSorted = true;
|
|
||||||
SmallVector<GCOVEdge *, 16> SrcEdges;
|
|
||||||
SmallVector<GCOVEdge *, 16> DstEdges;
|
|
||||||
SmallVector<uint32_t, 16> Lines;
|
|
||||||
};
|
|
||||||
|
|
||||||
class FileInfo {
|
|
||||||
// It is unlikely--but possible--for multiple functions to be on the same
|
|
||||||
// line.
|
|
||||||
// Therefore this typedef allows LineData.Functions to store multiple
|
|
||||||
// functions
|
|
||||||
// per instance. This is rare, however, so optimize for the common case.
|
|
||||||
using FunctionVector = SmallVector<const GCOVFunction *, 1>;
|
|
||||||
using FunctionLines = DenseMap<uint32_t, FunctionVector>;
|
|
||||||
using BlockVector = SmallVector<const GCOVBlock *, 4>;
|
|
||||||
using BlockLines = DenseMap<uint32_t, BlockVector>;
|
|
||||||
|
|
||||||
struct LineData {
|
|
||||||
LineData() = default;
|
|
||||||
|
|
||||||
BlockLines Blocks;
|
|
||||||
FunctionLines Functions;
|
|
||||||
uint32_t LastLine = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct GCOVCoverage {
|
|
||||||
GCOVCoverage(StringRef Name) : Name(Name) {}
|
|
||||||
|
|
||||||
StringRef Name;
|
|
||||||
|
|
||||||
uint32_t LogicalLines = 0;
|
|
||||||
uint32_t LinesExec = 0;
|
|
||||||
|
|
||||||
uint32_t Branches = 0;
|
|
||||||
uint32_t BranchesExec = 0;
|
|
||||||
uint32_t BranchesTaken = 0;
|
|
||||||
};
|
|
||||||
|
|
||||||
public:
|
|
||||||
FileInfo(const GCOV::Options &Options) : Options(Options) {}
|
|
||||||
|
|
||||||
void addBlockLine(StringRef Filename, uint32_t Line, const GCOVBlock *Block) {
|
|
||||||
if (Line > LineInfo[Filename].LastLine)
|
|
||||||
LineInfo[Filename].LastLine = Line;
|
|
||||||
LineInfo[Filename].Blocks[Line - 1].push_back(Block);
|
|
||||||
}
|
|
||||||
|
|
||||||
void addFunctionLine(StringRef Filename, uint32_t Line,
|
|
||||||
const GCOVFunction *Function) {
|
|
||||||
if (Line > LineInfo[Filename].LastLine)
|
|
||||||
LineInfo[Filename].LastLine = Line;
|
|
||||||
LineInfo[Filename].Functions[Line - 1].push_back(Function);
|
|
||||||
}
|
|
||||||
|
|
||||||
void setRunCount(uint32_t Runs) { RunCount = Runs; }
|
|
||||||
void setProgramCount(uint32_t Programs) { ProgramCount = Programs; }
|
|
||||||
void print(raw_ostream &OS, StringRef MainFilename, StringRef GCNOFile,
|
|
||||||
StringRef GCDAFile);
|
|
||||||
|
|
||||||
private:
|
|
||||||
std::string getCoveragePath(StringRef Filename, StringRef MainFilename);
|
|
||||||
std::unique_ptr<raw_ostream> openCoveragePath(StringRef CoveragePath);
|
|
||||||
void printFunctionSummary(raw_ostream &OS, const FunctionVector &Funcs) const;
|
|
||||||
void printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
|
|
||||||
uint32_t LineIndex, uint32_t &BlockNo) const;
|
|
||||||
void printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
|
|
||||||
GCOVCoverage &Coverage, uint32_t &EdgeNo);
|
|
||||||
void printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
|
|
||||||
uint64_t Count) const;
|
|
||||||
|
|
||||||
void printCoverage(raw_ostream &OS, const GCOVCoverage &Coverage) const;
|
|
||||||
void printFuncCoverage(raw_ostream &OS) const;
|
|
||||||
void printFileCoverage(raw_ostream &OS) const;
|
|
||||||
|
|
||||||
const GCOV::Options &Options;
|
|
||||||
StringMap<LineData> LineInfo;
|
|
||||||
uint32_t RunCount = 0;
|
|
||||||
uint32_t ProgramCount = 0;
|
|
||||||
|
|
||||||
using FileCoverageList = SmallVector<std::pair<std::string, GCOVCoverage>, 4>;
|
|
||||||
using FuncCoverageMap = MapVector<const GCOVFunction *, GCOVCoverage>;
|
|
||||||
|
|
||||||
FileCoverageList FileCoverages;
|
|
||||||
FuncCoverageMap FuncCoverages;
|
|
||||||
};
|
|
||||||
|
|
||||||
} // end namespace llvm
|
|
||||||
|
|
||||||
#endif // LLVM_SUPPORT_GCOV_H
|
|
||||||
Loading…
Reference in New Issue