Changeset 38181 in webkit for trunk/JavaScriptCore

Timestamp:

Nov 6, 2008, 10:38:41 AM (17 years ago)

Author:

Simon Hausmann

Message:

2008-11-06 Kristian Amlie <​[email protected]>

Reviewed by Simon Hausmann.

Implemented the block allocation on Symbian through heap allocation.

Unfortunately there is no way to allocate virtual memory. The Posix
layer provides mmap() but no anonymous mapping. So this is a very slow
solution but it should work as a start.

Location:

trunk/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• runtime/Collector.cpp (modified) (2 diffs)

trunk/JavaScriptCore/ChangeLog

@@ +1 @@
+2008-11-06  Kristian Amlie  <[email protected]>
+
+        Reviewed by Simon Hausmann.
+
+        Implemented the block allocation on Symbian through heap allocation.
+
+        Unfortunately there is no way to allocate virtual memory. The Posix
+        layer provides mmap() but no anonymous mapping. So this is a very slow
+        solution but it should work as a start.
+
+        * runtime/Collector.cpp:
+        (JSC::allocateBlock):
+        (JSC::freeBlock):
+
 2008-11-06  Laszlo Gombos  <[email protected]>
 

trunk/JavaScriptCore/runtime/Collector.cpp

@@ -190 +190 @@
     // FIXME: tag the region as a JavaScriptCore heap when we get a registered VM tag: <rdar://problem/6054788>.
     vm_map(current_task(), &address, BLOCK_SIZE, BLOCK_OFFSET_MASK, VM_FLAGS_ANYWHERE, MEMORY_OBJECT_NULL, 0, FALSE, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT);
+#elif PLATFORM(SYMBIAN)
+    // no memory map in symbian, need to hack with fastMalloc
+    void* address = fastMalloc(BLOCK_SIZE);
+    memset(reinterpret_cast<void*>(address), 0, BLOCK_SIZE);
 #elif PLATFORM(WIN_OS)
      // windows virtual address granularity is naturally 64k
@@ -232 +236 @@
 #if PLATFORM(DARWIN)    
     vm_deallocate(current_task(), reinterpret_cast<vm_address_t>(block), BLOCK_SIZE);
+#elif PLATFORM(SYMBIAN)
+    fastFree(block);
 #elif PLATFORM(WIN_OS)
     VirtualFree(block, 0, MEM_RELEASE);