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-rw-r--r--tools/llvm-cov/llvm-cov.cpp146
1 files changed, 104 insertions, 42 deletions
diff --git a/tools/llvm-cov/llvm-cov.cpp b/tools/llvm-cov/llvm-cov.cpp
index 5f6999e90564..18cc1b110e23 100644
--- a/tools/llvm-cov/llvm-cov.cpp
+++ b/tools/llvm-cov/llvm-cov.cpp
@@ -1,4 +1,4 @@
-//===- tools/llvm-cov/llvm-cov.cpp - LLVM coverage tool -------------------===//
+//===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -11,78 +11,140 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/SmallString.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/FileSystem.h"
#include "llvm/Support/GCOV.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryObject.h"
+#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
using namespace llvm;
-static cl::opt<bool>
-DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
+static cl::list<std::string> SourceFiles(cl::Positional, cl::OneOrMore,
+ cl::desc("SOURCEFILE"));
-static cl::opt<std::string>
-InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
+static cl::opt<bool> AllBlocks("a", cl::Grouping, cl::init(false),
+ cl::desc("Display all basic blocks"));
+static cl::alias AllBlocksA("all-blocks", cl::aliasopt(AllBlocks));
-static cl::opt<std::string>
-InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
+static cl::opt<bool> BranchProb("b", cl::Grouping, cl::init(false),
+ cl::desc("Display branch probabilities"));
+static cl::alias BranchProbA("branch-probabilities", cl::aliasopt(BranchProb));
+
+static cl::opt<bool> BranchCount("c", cl::Grouping, 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> LongNames("l", cl::Grouping, cl::init(false),
+ cl::desc("Prefix filenames with the main file"));
+static cl::alias LongNamesA("long-file-names", cl::aliasopt(LongNames));
+
+static cl::opt<bool> FuncSummary("f", cl::Grouping, cl::init(false),
+ cl::desc("Show coverage for each function"));
+static cl::alias FuncSummaryA("function-summaries", cl::aliasopt(FuncSummary));
+
+static cl::opt<bool> NoOutput("n", cl::Grouping, cl::init(false),
+ cl::desc("Do not output any .gcov files"));
+static cl::alias NoOutputA("no-output", cl::aliasopt(NoOutput));
static cl::opt<std::string>
-OutputFile("o", cl::desc("<output llvm-cov file>"), cl::init("-"));
+ObjectDir("o", cl::value_desc("DIR|FILE"), cl::init(""),
+ cl::desc("Find objects in DIR or based on FILE's path"));
+static cl::alias ObjectDirA("object-directory", cl::aliasopt(ObjectDir));
+static cl::alias ObjectDirB("object-file", cl::aliasopt(ObjectDir));
+static cl::opt<bool> PreservePaths("p", cl::Grouping, cl::init(false),
+ cl::desc("Preserve path components"));
+static cl::alias PreservePathsA("preserve-paths", cl::aliasopt(PreservePaths));
-//===----------------------------------------------------------------------===//
-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.
+static cl::opt<bool> UncondBranch("u", cl::Grouping, cl::init(false),
+ cl::desc("Display unconditional branch info "
+ "(requires -b)"));
+static cl::alias UncondBranchA("unconditional-branches",
+ cl::aliasopt(UncondBranch));
- cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n");
+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"));
- std::string ErrorInfo;
- raw_fd_ostream OS(OutputFile.c_str(), ErrorInfo);
- if (!ErrorInfo.empty())
- errs() << ErrorInfo << "\n";
+void reportCoverage(StringRef SourceFile) {
+ SmallString<128> CoverageFileStem(ObjectDir);
+ if (CoverageFileStem.empty()) {
+ // If no directory was specified with -o, look next to the source file.
+ CoverageFileStem = sys::path::parent_path(SourceFile);
+ sys::path::append(CoverageFileStem, sys::path::stem(SourceFile));
+ } else if (sys::fs::is_directory(ObjectDir))
+ // A directory name was given. Use it and the source file name.
+ sys::path::append(CoverageFileStem, sys::path::stem(SourceFile));
+ else
+ // A file was given. Ignore the source file and look next to this file.
+ sys::path::replace_extension(CoverageFileStem, "");
+ std::string GCNO = InputGCNO.empty()
+ ? std::string(CoverageFileStem.str()) + ".gcno"
+ : InputGCNO;
+ std::string GCDA = InputGCDA.empty()
+ ? std::string(CoverageFileStem.str()) + ".gcda"
+ : InputGCDA;
GCOVFile GF;
- if (InputGCNO.empty())
- errs() << " " << argv[0] << ": No gcov input file!\n";
- OwningPtr<MemoryBuffer> GCNO_Buff;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
- errs() << InputGCNO << ": " << ec.message() << "\n";
- return 1;
+ ErrorOr<std::unique_ptr<MemoryBuffer>> GCNO_Buff =
+ MemoryBuffer::getFileOrSTDIN(GCNO);
+ if (std::error_code EC = GCNO_Buff.getError()) {
+ errs() << GCNO << ": " << EC.message() << "\n";
+ return;
}
- GCOVBuffer GCNO_GB(GCNO_Buff.get());
- if (!GF.read(GCNO_GB)) {
+ GCOVBuffer GCNO_GB(GCNO_Buff.get().get());
+ if (!GF.readGCNO(GCNO_GB)) {
errs() << "Invalid .gcno File!\n";
- return 1;
+ return;
}
- if (!InputGCDA.empty()) {
- OwningPtr<MemoryBuffer> GCDA_Buff;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
- errs() << InputGCDA << ": " << ec.message() << "\n";
- return 1;
+ ErrorOr<std::unique_ptr<MemoryBuffer>> GCDA_Buff =
+ MemoryBuffer::getFileOrSTDIN(GCDA);
+ if (std::error_code EC = GCDA_Buff.getError()) {
+ if (EC != errc::no_such_file_or_directory) {
+ errs() << GCDA << ": " << EC.message() << "\n";
+ return;
}
- GCOVBuffer GCDA_GB(GCDA_Buff.get());
- if (!GF.read(GCDA_GB)) {
+ // Clear the filename to make it clear we didn't read anything.
+ GCDA = "-";
+ } else {
+ GCOVBuffer GCDA_GB(GCDA_Buff.get().get());
+ if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
- return 1;
+ return;
}
}
-
if (DumpGCOV)
GF.dump();
- FileInfo FI;
+ GCOVOptions Options(AllBlocks, BranchProb, BranchCount, FuncSummary,
+ PreservePaths, UncondBranch, LongNames, NoOutput);
+ FileInfo FI(Options);
GF.collectLineCounts(FI);
- FI.print(OS, InputGCNO, InputGCDA);
+ FI.print(SourceFile, GCNO, GCDA);
+}
+
+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");
+
+ for (const auto &SourceFile : SourceFiles)
+ reportCoverage(SourceFile);
return 0;
}
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