| 1 | //===-- Instrumentation.cpp -----------------------------------------------===// |
|---|---|
| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 3 | // See https://llvm.org/LICENSE.txt for license information. |
| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 5 | // |
| 6 | //===----------------------------------------------------------------------===// |
| 7 | |
| 8 | #include "lldb/Utility/Instrumentation.h" |
| 9 | #include "lldb/Utility/LLDBLog.h" |
| 10 | #include "llvm/Support/Signposts.h" |
| 11 | |
| 12 | #include <cstdio> |
| 13 | #include <cstdlib> |
| 14 | #include <limits> |
| 15 | #include <thread> |
| 16 | |
| 17 | using namespace lldb_private; |
| 18 | using namespace lldb_private::instrumentation; |
| 19 | |
| 20 | // Whether we're currently across the API boundary. |
| 21 | static thread_local bool g_global_boundary = false; |
| 22 | |
| 23 | // Instrument SB API calls with singposts when supported. |
| 24 | static llvm::ManagedStatic<llvm::SignpostEmitter> g_api_signposts; |
| 25 | |
| 26 | Instrumenter::Instrumenter(llvm::StringRef pretty_func, |
| 27 | std::string &&pretty_args) |
| 28 | : m_pretty_func(pretty_func) { |
| 29 | if (!g_global_boundary) { |
| 30 | g_global_boundary = true; |
| 31 | m_local_boundary = true; |
| 32 | g_api_signposts->startInterval(O: this, Name: m_pretty_func); |
| 33 | } |
| 34 | LLDB_LOG(GetLog(LLDBLog::API), "[{0}] {1} ({2})", |
| 35 | m_local_boundary ? "external": "internal", m_pretty_func, |
| 36 | pretty_args); |
| 37 | } |
| 38 | |
| 39 | Instrumenter::~Instrumenter() { |
| 40 | if (m_local_boundary) { |
| 41 | g_global_boundary = false; |
| 42 | g_api_signposts->endInterval(O: this, Name: m_pretty_func); |
| 43 | } |
| 44 | } |
| 45 |