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cd7a97bae8
A while ago llvm-cov gained support for clang's instrumentation based profiling in addition to its gcov support, and subcommands were added to choose which behaviour to use. When no subcommand was specified, we fell back to gcov compatibility with a warning that a subcommand would be required in the future. Now, we require the subcommand. Note that if the basename of llvm-cov is gcov (via symlink or hardlink, for example), we still use the gcov compatible behaviour with no subcommand required. llvm-svn: 233132
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
//===- llvm-cov.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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// llvm-cov is a command line tools to analyze and report coverage information.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Process.h"
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#include "llvm/Support/raw_ostream.h"
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#include <string>
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using namespace llvm;
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/// \brief The main entry point for the 'show' subcommand.
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int showMain(int argc, const char *argv[]);
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/// \brief The main entry point for the 'report' subcommand.
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int reportMain(int argc, const char *argv[]);
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/// \brief The main entry point for the 'convert-for-testing' subcommand.
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int convertForTestingMain(int argc, const char *argv[]);
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/// \brief The main entry point for the gcov compatible coverage tool.
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int gcovMain(int argc, const char *argv[]);
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/// \brief Top level help.
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static int helpMain(int argc, const char *argv[]) {
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errs() << "Usage: llvm-cov {gcov|report|show} [OPTION]...\n\n"
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<< "Shows code coverage information.\n\n"
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<< "Subcommands:\n"
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<< " gcov: Work with the gcov format.\n"
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<< " show: Annotate source files using instrprof style coverage.\n"
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<< " report: Summarize instrprof style coverage information.\n";
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return 0;
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}
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int main(int argc, const char **argv) {
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// If argv[0] is or ends with 'gcov', always be gcov compatible
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if (sys::path::stem(argv[0]).endswith_lower("gcov"))
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return gcovMain(argc, argv);
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// Check if we are invoking a specific tool command.
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if (argc > 1) {
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typedef int (*MainFunction)(int, const char *[]);
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MainFunction Func = StringSwitch<MainFunction>(argv[1])
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.Case("convert-for-testing", convertForTestingMain)
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.Case("gcov", gcovMain)
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.Case("report", reportMain)
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.Case("show", showMain)
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.Cases("-h", "-help", "--help", helpMain)
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.Default(nullptr);
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if (Func) {
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std::string Invocation = std::string(argv[0]) + " " + argv[1];
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argv[1] = Invocation.c_str();
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return Func(argc - 1, argv + 1);
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}
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}
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if (argc > 1) {
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if (sys::Process::StandardErrHasColors())
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errs().changeColor(raw_ostream::RED);
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errs() << "Unrecognized command: " << argv[1] << ".\n\n";
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if (sys::Process::StandardErrHasColors())
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errs().resetColor();
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}
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helpMain(argc, argv);
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return 1;
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}
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