Add m-esr52 at 52.6.0

1 files changed, 93 insertions, 0 deletions

diff --git a/js/src/vm/Probes-inl.h b/js/src/vm/Probes-inl.h
new file mode 100644
index 000000000..347f842b8
--- /dev/null
+++ b/js/src/vm/Probes-inl.h
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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 "jscntxt.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->spsProfiler.enabled()) {
+        if (!rt->spsProfiler.enter(cx, script, maybeFun))
+            return false;
+        MOZ_ASSERT_IF(!fp->script()->isGenerator(), !fp->hasPushedSPSFrame());
+        fp->setPushedSPSFrame();
+    }
+
+    return true;
+}
+
+inline void
+probes::ExitScript(JSContext* cx, JSScript* script, JSFunction* maybeFun, bool popSPSFrame)
+{
+#ifdef INCLUDE_MOZILLA_DTRACE
+    if (JAVASCRIPT_FUNCTION_RETURN_ENABLED())
+        DTraceExitJSFun(cx, maybeFun, script);
+#endif
+
+    if (popSPSFrame)
+        cx->runtime()->spsProfiler.exit(script, maybeFun);
+}
+
+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 */