diff options
Diffstat (limited to 'tools/llvm-cov/llvm-cov.cpp')
| -rw-r--r-- | tools/llvm-cov/llvm-cov.cpp | 178 |
1 files changed, 53 insertions, 125 deletions
diff --git a/tools/llvm-cov/llvm-cov.cpp b/tools/llvm-cov/llvm-cov.cpp index 18cc1b1..a67859e 100644 --- a/tools/llvm-cov/llvm-cov.cpp +++ b/tools/llvm-cov/llvm-cov.cpp @@ -11,140 +11,68 @@ // //===----------------------------------------------------------------------===// -#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/ADT/StringRef.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Support/Path.h" -#include "llvm/Support/PrettyStackTrace.h" -#include "llvm/Support/Signals.h" -#include <system_error> -using namespace llvm; - -static cl::list<std::string> SourceFiles(cl::Positional, cl::OneOrMore, - cl::desc("SOURCEFILE")); - -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<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)); +#include <string> -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> -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)); +using namespace llvm; -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)); +/// \brief The main entry point for the 'show' subcommand. +int showMain(int argc, const char *argv[]); -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")); +/// \brief The main entry point for the 'report' subcommand. +int reportMain(int argc, const char *argv[]); -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, ""); +/// \brief The main entry point for the 'convert-for-testing' subcommand. +int convertForTestingMain(int argc, const char *argv[]); - std::string GCNO = InputGCNO.empty() - ? std::string(CoverageFileStem.str()) + ".gcno" - : InputGCNO; - std::string GCDA = InputGCDA.empty() - ? std::string(CoverageFileStem.str()) + ".gcda" - : InputGCDA; - GCOVFile GF; +/// \brief The main entry point for the gcov compatible coverage tool. +int gcovMain(int argc, const char *argv[]); - 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().get()); - if (!GF.readGCNO(GCNO_GB)) { - errs() << "Invalid .gcno File!\n"; - return; - } +/// \brief Top level help. +int helpMain(int argc, const char *argv[]) { + errs() << "OVERVIEW: LLVM code coverage tool\n\n" + << "USAGE: llvm-cov {gcov|report|show}\n"; + return 0; +} - 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; - } - // 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; +int main(int argc, const char **argv) { + // If argv[0] is or ends with 'gcov', always be gcov compatible + if (sys::path::stem(argv[0]).endswith_lower("gcov")) + return gcovMain(argc, argv); + + // Check if we are invoking a specific tool command. + if (argc > 1) { + typedef int (*MainFunction)(int, const char *[]); + MainFunction Func = StringSwitch<MainFunction>(argv[1]) + .Case("convert-for-testing", convertForTestingMain) + .Case("gcov", gcovMain) + .Case("report", reportMain) + .Case("show", showMain) + .Cases("-h", "-help", "--help", helpMain) + .Default(nullptr); + + if (Func) { + std::string Invocation = std::string(argv[0]) + " " + argv[1]; + argv[1] = Invocation.c_str(); + return Func(argc - 1, argv + 1); } } - if (DumpGCOV) - GF.dump(); - - GCOVOptions Options(AllBlocks, BranchProb, BranchCount, FuncSummary, - PreservePaths, UncondBranch, LongNames, NoOutput); - FileInfo FI(Options); - GF.collectLineCounts(FI); - 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; + // Give a warning and fall back to gcov + errs().changeColor(raw_ostream::RED); + errs() << "warning:"; + // Assume that argv[1] wasn't a command when it stats with a '-' or is a + // filename (i.e. contains a '.') + if (argc > 1 && !StringRef(argv[1]).startswith("-") && + StringRef(argv[1]).find(".") == StringRef::npos) + errs() << " Unrecognized command '" << argv[1] << "'."; + errs() << " Using the gcov compatible mode " + "(this behaviour may be dropped in the future)."; + errs().resetColor(); + errs() << "\n"; + + return gcovMain(argc, argv); } |