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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /tools/profiler/core/VTuneProfiler.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/profiler/core/VTuneProfiler.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tools/profiler/core/VTuneProfiler.h b/tools/profiler/core/VTuneProfiler.h new file mode 100644 index 0000000000..e3abe6b90d --- /dev/null +++ b/tools/profiler/core/VTuneProfiler.h @@ -0,0 +1,78 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef VTuneProfiler_h +#define VTuneProfiler_h + +// The intent here is to add 0 overhead for regular users. In order to build +// the VTune profiler code at all --enable-vtune-instrumentation needs to be +// set as a build option. Even then, when none of the environment variables +// is specified that allow us to find the ittnotify DLL, these functions +// should be minimal overhead. When starting Firefox under VTune, these +// env vars will be automatically defined, otherwise INTEL_LIBITTNOTIFY32/64 +// should be set to point at the ittnotify DLL. +#ifndef MOZ_VTUNE_INSTRUMENTATION + +# define VTUNE_INIT() +# define VTUNE_SHUTDOWN() + +# define VTUNE_TRACING(name, kind) +# define VTUNE_REGISTER_THREAD(name) + +#else + +# include "GeckoProfiler.h" + +// This is the regular Intel header, these functions are actually defined for +// us inside js/src/vtune by an intel C file which actually dynamically resolves +// them to the correct DLL. Through libxul these will 'magically' resolve. +# include "vtune/ittnotify.h" + +# include <stddef.h> +# include <unordered_map> +# include <string> + +class VTuneProfiler { + public: + static void Initialize(); + static void Shutdown(); + + enum TracingKind { + TRACING_EVENT, + TRACING_INTERVAL_START, + TRACING_INTERVAL_END, + }; + + static void Trace(const char* aName, TracingKind aKind) { + if (mInstance) { + mInstance->TraceInternal(aName, aKind); + } + } + static void RegisterThread(const char* aName) { + if (mInstance) { + mInstance->RegisterThreadInternal(aName); + } + } + + private: + void TraceInternal(const char* aName, TracingKind aKind); + void RegisterThreadInternal(const char* aName); + + // This is null when the ittnotify DLL could not be found. + static VTuneProfiler* mInstance; + + std::unordered_map<std::string, __itt_event> mStrings; +}; + +# define VTUNE_INIT() VTuneProfiler::Initialize() +# define VTUNE_SHUTDOWN() VTuneProfiler::Shutdown() + +# define VTUNE_TRACING(name, kind) VTuneProfiler::Trace(name, kind) +# define VTUNE_REGISTER_THREAD(name) VTuneProfiler::RegisterThread(name) + +#endif + +#endif /* VTuneProfiler_h */ |