Changeset 42638 in webkit for trunk/JavaScriptCore/wtf/AVLTree.h

Timestamp:

Apr 17, 2009, 9:44:22 PM (16 years ago)

Author:

[email protected]

Message:

2009-04-17 Gavin Barraclough <​[email protected]>

Reviewed by Geoff Garen.

On x86_64, make all JIT-code allocations from a new heap, managed
by FixedVMPoolAllocator. This class allocates a single large (2Gb)
pool of virtual memory from which all further allocations take place.
Since all JIT code is allocated from this pool, we can continue to
safely assume (as is already asserted) that it will always be possible
to link any JIT-code to JIT-code jumps and calls.

• JavaScriptCore.xcodeproj/project.pbxproj:

Add new file.

• jit/ExecutableAllocatorFixedVMPool.cpp: Added. (JSC::FreeListEntry::FreeListEntry): (JSC::AVLTreeAbstractorForFreeList::get_less): (JSC::AVLTreeAbstractorForFreeList::set_less): (JSC::AVLTreeAbstractorForFreeList::get_greater): (JSC::AVLTreeAbstractorForFreeList::set_greater): (JSC::AVLTreeAbstractorForFreeList::get_balance_factor): (JSC::AVLTreeAbstractorForFreeList::set_balance_factor): (JSC::AVLTreeAbstractorForFreeList::null): (JSC::AVLTreeAbstractorForFreeList::compare_key_key): (JSC::AVLTreeAbstractorForFreeList::compare_key_node): (JSC::AVLTreeAbstractorForFreeList::compare_node_node): (JSC::sortFreeListEntriesByPointer): (JSC::sortCommonSizedAllocations): (JSC::FixedVMPoolAllocator::release): (JSC::FixedVMPoolAllocator::reuse): (JSC::FixedVMPoolAllocator::addToFreeList): (JSC::FixedVMPoolAllocator::coalesceFreeSpace): (JSC::FixedVMPoolAllocator::FixedVMPoolAllocator): (JSC::FixedVMPoolAllocator::alloc): (JSC::FixedVMPoolAllocator::free): (JSC::ExecutableAllocator::intializePageSize): (JSC::ExecutablePool::systemAlloc): (JSC::ExecutablePool::systemRelease):

The new 2Gb heap class!

• jit/ExecutableAllocatorPosix.cpp:

Disable use of this implementation on x86_64.

• wtf/AVLTree.h:

Add missing variable initialization.

(WTF::::remove):

File:

• trunk/JavaScriptCore/wtf/AVLTree.h (modified) (1 diff)

trunk/JavaScriptCore/wtf/AVLTree.h

@@ -765 +765 @@
     handle h = abs.root;
     handle parent = null(), child;
-    int cmp, cmp_shortened_sub_with_path;
+    int cmp, cmp_shortened_sub_with_path = 0;
 
     for (;;) {