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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm-project/llvm/tools/llvm-xray/llvm-xray.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm-project/llvm/tools/llvm-xray/llvm-xray.cpp')
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diff --git a/contrib/llvm-project/llvm/tools/llvm-xray/llvm-xray.cpp b/contrib/llvm-project/llvm/tools/llvm-xray/llvm-xray.cpp
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+//===- llvm-xray.cpp: XRay Tool Main Program ------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the main entry point for the suite of XRay tools. All
+// additional functionality are implemented as subcommands.
+//
+//===----------------------------------------------------------------------===//
+//
+// Basic usage:
+//
+// llvm-xray [options] <subcommand> [subcommand-specific options]
+//
+#include "xray-registry.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+using namespace llvm::xray;
+
+int main(int argc, char *argv[]) {
+ cl::ParseCommandLineOptions(argc, argv,
+ "XRay Tools\n\n"
+ " This program consolidates multiple XRay trace "
+ "processing tools for convenient access.\n");
+ for (auto *SC : cl::getRegisteredSubcommands()) {
+ if (*SC) {
+ // If no subcommand was provided, we need to explicitly check if this is
+ // the top-level subcommand.
+ if (SC == &*cl::TopLevelSubCommand) {
+ cl::PrintHelpMessage(false, true);
+ return 0;
+ }
+ if (auto C = dispatch(SC)) {
+ ExitOnError("llvm-xray: ")(C());
+ return 0;
+ }
+ }
+ }
+
+ // If all else fails, we still print the usage message.
+ cl::PrintHelpMessage(false, true);
+ return 0;
+}