Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 97 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..3a149ba8c8
--- /dev/null
+++ b/js/src/vm/Probes-inl.h
@@ -0,0 +1,97 @@
+/* -*- 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-inl.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_IF(!fp->script()->isGenerator() && !fp->script()->isAsync(),
+                  !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 */