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-rw-r--r--tools/llvm-cov/llvm-cov.cpp178
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);
}
generated by cgit v1.1 at 2024-05-16 04:45:11 +0000