Changeset 39083 in webkit for trunk/JavaScriptCore/interpreter

Timestamp:

Dec 7, 2008, 3:55:04 PM (16 years ago)

Author:

[email protected]

Message:

<rdar://problem/6309878> Need more granular control over allocation of executable memory (21783)
<​https://bugs.webkit.org/show_bug.cgi?id=21783>

Reviewed by Cameron Zwarich and Sam Weinig

Add a new allocator for use by the JIT that provides executable pages, so
we can get rid of the current hack that makes the entire heap executable.

1-2% progression on SunSpider-v8, 1% on SunSpider. Reduces memory usage as well!

Location:

trunk/JavaScriptCore/interpreter

Files:

• Interpreter.cpp (modified) (1 diff)
• Interpreter.h (modified) (1 diff)

trunk/JavaScriptCore/interpreter/Interpreter.cpp

@@ -651 +651 @@
 Interpreter::~Interpreter()
 {
-#if ENABLE(JIT)
-    JIT::freeCTIMachineTrampolines(this);
-#endif
 }
 

trunk/JavaScriptCore/interpreter/Interpreter.h

@@ -334 +334 @@
 
 #if ENABLE(JIT)
+        RefPtr<ExecutablePool> m_executablePool;
         void* m_ctiArrayLengthTrampoline;
         void* m_ctiStringLengthTrampoline;