Changeset 39083 in webkit for trunk/JavaScriptCore/bytecode/CodeBlock.h

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!

File:

• trunk/JavaScriptCore/bytecode/CodeBlock.h (modified) (2 diffs)

trunk/JavaScriptCore/bytecode/CodeBlock.h

@@ -240 +240 @@
         void setJITCode(void* jitCode) { m_jitCode = jitCode; }
         void* jitCode() { return m_jitCode; }
+        ExecutablePool* executablePool() { return m_executablePool.get(); }
+        void setExecutablePool(ExecutablePool* pool) { m_executablePool = pool; }
 #endif
 
@@ -354 +356 @@
 #if ENABLE(JIT)
         void* m_jitCode;
+        RefPtr<ExecutablePool> m_executablePool;
 #endif