forked from OSchip/llvm-project
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
//===-- Instrumentation.cpp -----------------------------------------------===//
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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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#include "lldb/Utility/Instrumentation.h"
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#include "lldb/Utility/LLDBLog.h"
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#include "llvm/Support/Signposts.h"
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#include <cstdio>
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#include <cstdlib>
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#include <limits>
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#include <thread>
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using namespace lldb_private;
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using namespace lldb_private::instrumentation;
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// Whether we're currently across the API boundary.
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static thread_local bool g_global_boundary = false;
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// Instrument SB API calls with singposts when supported.
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static llvm::ManagedStatic<llvm::SignpostEmitter> g_api_signposts;
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Instrumenter::Instrumenter(llvm::StringRef pretty_func,
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std::string &&pretty_args)
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: m_pretty_func(pretty_func) {
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if (!g_global_boundary) {
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g_global_boundary = true;
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m_local_boundary = true;
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g_api_signposts->startInterval(this, m_pretty_func);
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}
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LLDB_LOG(GetLog(LLDBLog::API), "[{0}] {1} ({2})",
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m_local_boundary ? "external" : "internal", m_pretty_func,
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pretty_args);
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}
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Instrumenter::~Instrumenter() {
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if (m_local_boundary) {
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g_global_boundary = false;
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g_api_signposts->endInterval(this, m_pretty_func);
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}
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}
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