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Diffstat (limited to '')
-rw-r--r-- | js/src/vm/Probes-inl.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/js/src/vm/Probes-inl.h b/js/src/vm/Probes-inl.h new file mode 100644 index 0000000000..d0ad1e39fc --- /dev/null +++ b/js/src/vm/Probes-inl.h @@ -0,0 +1,95 @@ +/* -*- Mode: C++; tab-width: 8; 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 vm_Probes_inl_h +#define vm_Probes_inl_h + +#include "vm/Probes.h" + +#include "vm/JSContext.h" +#include "vm/JSScript.h" + +namespace js { + +/* + * Many probe handlers are implemented inline for minimal performance impact, + * especially important when no backends are enabled. + */ + +inline bool probes::CallTrackingActive(JSContext* cx) { +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED() || + JAVASCRIPT_FUNCTION_RETURN_ENABLED()) { + return true; + } +#endif + return false; +} + +inline bool probes::EnterScript(JSContext* cx, JSScript* script, + JSFunction* maybeFun, InterpreterFrame* fp) { +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED()) { + DTraceEnterJSFun(cx, maybeFun, script); + } +#endif + + JSRuntime* rt = cx->runtime(); + if (rt->geckoProfiler().enabled()) { + if (!cx->geckoProfiler().enter(cx, script)) { + return false; + } + MOZ_ASSERT(!fp->hasPushedGeckoProfilerFrame()); + fp->setPushedGeckoProfilerFrame(); + } + + return true; +} + +inline void probes::ExitScript(JSContext* cx, JSScript* script, + JSFunction* maybeFun, bool popProfilerFrame) { +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_RETURN_ENABLED()) { + DTraceExitJSFun(cx, maybeFun, script); + } +#endif + + if (popProfilerFrame) { + cx->geckoProfiler().exit(cx, script); + } +} + +inline bool probes::StartExecution(JSScript* script) { + bool ok = true; + +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_EXECUTE_START_ENABLED()) { + JAVASCRIPT_EXECUTE_START( + (script->filename() ? (char*)script->filename() : nullName), + script->lineno()); + } +#endif + + return ok; +} + +inline bool probes::StopExecution(JSScript* script) { + bool ok = true; + +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_EXECUTE_DONE_ENABLED()) { + JAVASCRIPT_EXECUTE_DONE( + (script->filename() ? (char*)script->filename() : nullName), + script->lineno()); + } +#endif + + return ok; +} + +} /* namespace js */ + +#endif /* vm_Probes_inl_h */ |