1//===- llvm-xray.cpp: XRay Tool Main Program ------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file implements the main entry point for the suite of XRay tools. All
10// additional functionality are implemented as subcommands.
11//
12//===----------------------------------------------------------------------===//
13//
14// Basic usage:
15//
16// llvm-xray [options] <subcommand> [subcommand-specific options]
17//
18#include "xray-registry.h"
19#include "llvm/Support/CommandLine.h"
20#include "llvm/Support/raw_ostream.h"
21
22using namespace llvm;
23using namespace llvm::xray;
24
25int main(int argc, char *argv[]) {
26 cl::ParseCommandLineOptions(argc, argv,
27 Overview: "XRay Tools\n\n"
28 " This program consolidates multiple XRay trace "
29 "processing tools for convenient access.\n");
30 for (auto *SC : cl::getRegisteredSubcommands()) {
31 if (*SC) {
32 // If no subcommand was provided, we need to explicitly check if this is
33 // the top-level subcommand.
34 if (SC == &cl::SubCommand::getTopLevel()) {
35 cl::PrintHelpMessage(Hidden: false, Categorized: true);
36 return 0;
37 }
38 if (auto C = dispatch(SC)) {
39 ExitOnError("llvm-xray: ")(C());
40 return 0;
41 }
42 }
43 }
44
45 // If all else fails, we still print the usage message.
46 cl::PrintHelpMessage(Hidden: false, Categorized: true);
47 return 0;
48}
49