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