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//===- 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 "llvm/ADT/OwningPtr.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/GCOV.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<std::string> SourceFile(cl::Positional, cl::Required,
cl::desc("SOURCEFILE"));
static cl::opt<bool> AllBlocks("a", cl::init(false),
cl::desc("Display all basic blocks"));
static cl::alias AllBlocksA("all-blocks", cl::aliasopt(AllBlocks));
static cl::opt<bool> BranchProb("b", cl::init(false),
cl::desc("Display branch probabilities"));
static cl::alias BranchProbA("branch-probabilities", cl::aliasopt(BranchProb));
static cl::opt<bool> BranchCount("c", cl::init(false),
cl::desc("Display branch counts instead "
"of percentages (requires -b)"));
static cl::alias BranchCountA("branch-counts", cl::aliasopt(BranchCount));
static cl::opt<bool> FuncSummary("f", cl::init(false),
cl::desc("Show coverage for each function"));
static cl::alias FuncSummaryA("function-summaries", cl::aliasopt(FuncSummary));
static cl::opt<bool> UncondBranch("u", cl::init(false),
cl::desc("Display unconditional branch info "
"(requires -b)"));
static cl::alias UncondBranchA("unconditional-branches",
cl::aliasopt(UncondBranch));
static cl::OptionCategory DebugCat("Internal and debugging options");
static cl::opt<bool> DumpGCOV("dump", cl::init(false), cl::cat(DebugCat),
cl::desc("Dump the gcov file to stderr"));
static cl::opt<std::string> InputGCNO("gcno", cl::cat(DebugCat), cl::init(""),
cl::desc("Override inferred gcno file"));
static cl::opt<std::string> InputGCDA("gcda", cl::cat(DebugCat), cl::init(""),
cl::desc("Override inferred gcda file"));
//===----------------------------------------------------------------------===//
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 code coverage tool\n");
if (InputGCNO.empty())
InputGCNO = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcno";
if (InputGCDA.empty())
InputGCDA = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcda";
GCOVFile GF;
OwningPtr<MemoryBuffer> GCNO_Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
errs() << InputGCNO << ": " << ec.message() << "\n";
return 1;
}
GCOVBuffer GCNO_GB(GCNO_Buff.get());
if (!GF.readGCNO(GCNO_GB)) {
errs() << "Invalid .gcno File!\n";
return 1;
}
OwningPtr<MemoryBuffer> GCDA_Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
errs() << InputGCDA << ": " << ec.message() << "\n";
return 1;
}
GCOVBuffer GCDA_GB(GCDA_Buff.get());
if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
return 1;
}
if (DumpGCOV)
GF.dump();
GCOVOptions Options(AllBlocks, BranchProb, BranchCount, FuncSummary,
UncondBranch);
FileInfo FI(Options);
GF.collectLineCounts(FI);
FI.print(InputGCNO, InputGCDA);
return 0;
}
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