6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
//===----- PerfSupportPlugin.h ----- Utils for perf support -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Handles support for registering code with perf
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_PERFSUPPORTPLUGIN_H
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#define LLVM_EXECUTIONENGINE_ORC_PERFSUPPORTPLUGIN_H
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#include "llvm/ExecutionEngine/Orc/Shared/PerfSharedStructs.h"
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#include "llvm/ExecutionEngine/Orc/Core.h"
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#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
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namespace llvm {
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namespace orc {
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/// Log perf jitdump events for each object (see
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/// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/Documentation/jitdump-specification.txt).
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/// Currently has support for dumping code load records and unwind info records.
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class PerfSupportPlugin : public ObjectLinkingLayer::Plugin {
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public:
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PerfSupportPlugin(ExecutorProcessControl &EPC,
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ExecutorAddr RegisterPerfStartAddr,
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ExecutorAddr RegisterPerfEndAddr,
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ExecutorAddr RegisterPerfImplAddr, bool EmitDebugInfo,
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bool EmitUnwindInfo);
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~PerfSupportPlugin();
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void modifyPassConfig(MaterializationResponsibility &MR,
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jitlink::LinkGraph &G,
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jitlink::PassConfiguration &Config) override;
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Error notifyFailed(MaterializationResponsibility &MR) override {
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return Error::success();
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}
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Error notifyRemovingResources(JITDylib &JD, ResourceKey K) override {
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return Error::success();
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}
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void notifyTransferringResources(JITDylib &JD, ResourceKey DstKey,
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ResourceKey SrcKey) override {}
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static Expected<std::unique_ptr<PerfSupportPlugin>>
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Create(ExecutorProcessControl &EPC, JITDylib &JD, bool EmitDebugInfo,
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bool EmitUnwindInfo);
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private:
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ExecutorProcessControl &EPC;
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ExecutorAddr RegisterPerfStartAddr;
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ExecutorAddr RegisterPerfEndAddr;
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ExecutorAddr RegisterPerfImplAddr;
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std::atomic<uint64_t> CodeIndex;
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bool EmitDebugInfo;
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bool EmitUnwindInfo;
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};
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} // namespace orc
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} // namespace llvm
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#endif // LLVM_EXECUTIONENGINE_ORC_PERFSUPPORTPLUGIN_H
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