js/src/vm/Probes-inl.h

   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 namespace js {
  15
  16 /*
  17  * Many probe handlers are implemented inline for minimal performance impact,
  18  * especially important when no backends are enabled.
  19  */
  20
  21 inline bool
  22 probes::CallTrackingActive(JSContext* cx)
  23 {
  24 #ifdef INCLUDE_MOZILLA_DTRACE
  25     if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED() || JAVASCRIPT_FUNCTION_RETURN_ENABLED())
  26         return true;
  27 #endif
  28     return false;
  29 }
  30
  31 inline bool
  32 probes::WantNativeAddressInfo(JSContext* cx)
  33 {
  34     return cx->reportGranularity >= JITREPORT_GRANULARITY_FUNCTION &&
  35            JITGranularityRequested(cx) >= JITREPORT_GRANULARITY_FUNCTION;
  36 }
  37
  38 inline bool
  39 probes::EnterScript(JSContext* cx, JSScript* script, JSFunction* maybeFun,
  40                     InterpreterFrame* fp)
  41 {
  42 #ifdef INCLUDE_MOZILLA_DTRACE
  43     if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED())
  44         DTraceEnterJSFun(cx, maybeFun, script);
  45 #endif
  46
  47     JSRuntime* rt = cx->runtime();
  48     if (rt->spsProfiler.enabled()) {
  49         if (!rt->spsProfiler.enter(script, maybeFun))
  50             return false;
  51         MOZ_ASSERT_IF(!fp->script()->isGenerator(), !fp->hasPushedSPSFrame());
  52         fp->setPushedSPSFrame();
  53     }
  54
  55     return true;
  56 }
  57
  58 inline void
  59 probes::ExitScript(JSContext* cx, JSScript* script, JSFunction* maybeFun, bool popSPSFrame)
  60 {
  61 #ifdef INCLUDE_MOZILLA_DTRACE
  62     if (JAVASCRIPT_FUNCTION_RETURN_ENABLED())
  63         DTraceExitJSFun(cx, maybeFun, script);
  64 #endif
  65
  66     if (popSPSFrame)
  67         cx->runtime()->spsProfiler.exit(script, maybeFun);
  68 }
  69
  70 inline bool
  71 probes::StartExecution(JSScript* script)
  72 {
  73     bool ok = true;
  74
  75 #ifdef INCLUDE_MOZILLA_DTRACE
  76     if (JAVASCRIPT_EXECUTE_START_ENABLED())
  77         JAVASCRIPT_EXECUTE_START((script->filename() ? (char*)script->filename() : nullName),
  78                                  script->lineno());
  79 #endif
  80
  81     return ok;
  82 }
  83
  84 inline bool
  85 probes::StopExecution(JSScript* script)
  86 {
  87     bool ok = true;
  88
  89 #ifdef INCLUDE_MOZILLA_DTRACE
  90     if (JAVASCRIPT_EXECUTE_DONE_ENABLED())
  91         JAVASCRIPT_EXECUTE_DONE((script->filename() ? (char*)script->filename() : nullName),
  92                                 script->lineno());
  93 #endif
  94
  95     return ok;
  96 }
  97
  98 } /* namespace js */
  99
 100 #endif /* vm_Probes_inl_h */