Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2             :  * vim: set ts=8 sts=4 et sw=4 tw=99:
       3             :  * This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef vm_Probes_inl_h
       8             : #define vm_Probes_inl_h
       9             : 
      10             : #include "vm/Probes.h"
      11             : 
      12             : #include "jscntxt.h"
      13             : 
      14             : #include "gc/Zone.h"
      15             : 
      16             : namespace js {
      17             : 
      18             : /*
      19             :  * Many probe handlers are implemented inline for minimal performance impact,
      20             :  * especially important when no backends are enabled.
      21             :  */
      22             : 
      23             : inline bool
      24             : probes::CallTrackingActive(JSContext* cx)
      25             : {
      26             : #ifdef INCLUDE_MOZILLA_DTRACE
      27             :     if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED() || JAVASCRIPT_FUNCTION_RETURN_ENABLED())
      28             :         return true;
      29             : #endif
      30             :     return false;
      31             : }
      32             : 
      33             : inline bool
      34       12100 : probes::EnterScript(JSContext* cx, JSScript* script, JSFunction* maybeFun,
      35             :                     InterpreterFrame* fp)
      36             : {
      37             : #ifdef INCLUDE_MOZILLA_DTRACE
      38             :     if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED())
      39             :         DTraceEnterJSFun(cx, maybeFun, script);
      40             : #endif
      41             : 
      42       12100 :     JSRuntime* rt = cx->runtime();
      43       12100 :     if (rt->geckoProfiler().enabled()) {
      44           0 :         if (!rt->geckoProfiler().enter(cx, script, maybeFun))
      45           0 :             return false;
      46           0 :         MOZ_ASSERT_IF(!fp->script()->isStarGenerator() &&
      47             :                       !fp->script()->isLegacyGenerator() &&
      48             :                       !fp->script()->isAsync(),
      49             :                       !fp->hasPushedGeckoProfilerFrame());
      50           0 :         fp->setPushedGeckoProfilerFrame();
      51             :     }
      52             : 
      53       12100 :     return true;
      54             : }
      55             : 
      56             : inline void
      57       12225 : probes::ExitScript(JSContext* cx, JSScript* script, JSFunction* maybeFun, bool popProfilerFrame)
      58             : {
      59             : #ifdef INCLUDE_MOZILLA_DTRACE
      60             :     if (JAVASCRIPT_FUNCTION_RETURN_ENABLED())
      61             :         DTraceExitJSFun(cx, maybeFun, script);
      62             : #endif
      63             : 
      64       12225 :     if (popProfilerFrame)
      65           0 :         cx->runtime()->geckoProfiler().exit(script, maybeFun);
      66       12225 : }
      67             : 
      68             : inline bool
      69         498 : probes::StartExecution(JSScript* script)
      70             : {
      71         498 :     bool ok = true;
      72             : 
      73             : #ifdef INCLUDE_MOZILLA_DTRACE
      74             :     if (JAVASCRIPT_EXECUTE_START_ENABLED())
      75             :         JAVASCRIPT_EXECUTE_START((script->filename() ? (char*)script->filename() : nullName),
      76             :                                  script->lineno());
      77             : #endif
      78             : 
      79         498 :     return ok;
      80             : }
      81             : 
      82             : inline bool
      83         494 : probes::StopExecution(JSScript* script)
      84             : {
      85         494 :     bool ok = true;
      86             : 
      87             : #ifdef INCLUDE_MOZILLA_DTRACE
      88             :     if (JAVASCRIPT_EXECUTE_DONE_ENABLED())
      89             :         JAVASCRIPT_EXECUTE_DONE((script->filename() ? (char*)script->filename() : nullName),
      90             :                                 script->lineno());
      91             : #endif
      92             : 
      93         494 :     return ok;
      94             : }
      95             : 
      96             : } /* namespace js */
      97             : 
      98             : #endif /* vm_Probes_inl_h */