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Usage: llvm-xray extract <object file> [-o <filename or '-'>] The tool gets the XRay instrumentation map from an object file and turns it into YAML. We first support ELF64 sleds on x86_64 binaries, with provision for supporting other supported platforms and formats later. This is the first of a many-part change to fully implement the `llvm-xray` tool. We also define a subcommand registration and dispatch mechanism to be used by other further subcommand implementations for llvm-xray. Diffusion Revision: https://reviews.llvm.org/D21987 llvm-svn: 285165
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
//===- xray-registry.h - Define registry mechanism for commands. ----------===//
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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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// Implement a simple subcommand registry.
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//
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//===----------------------------------------------------------------------===//
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#ifndef TOOLS_LLVM_XRAY_XRAY_REGISTRY_H
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#define TOOLS_LLVM_XRAY_XRAY_REGISTRY_H
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Error.h"
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namespace llvm {
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namespace xray {
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// Use |CommandRegistration| as a global initialiser that registers a function
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// and associates it with |SC|. This requires that a command has not been
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// registered to a given |SC|.
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//
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// Usage:
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//
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// // At namespace scope.
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// static CommandRegistration Unused(&MySubCommand, [] { ... });
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//
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struct CommandRegistration {
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CommandRegistration(cl::SubCommand *SC, std::function<Error()> Command);
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};
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// Requires that |SC| is not null and has an associated function to it.
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std::function<Error()> dispatch(cl::SubCommand *SC);
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} // namespace xray
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} // namespace llvm
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#endif // TOOLS_LLVM_XRAY_XRAY_REGISTRY_H
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