JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / llint / LLIntThunks.cpp

diff --git a/llint/LLIntThunks.cpp b/llint/LLIntThunks.cpp
index e8f8a1714efa5b3fbc7da866c0c85caff60db612..8ab96b30475fd554def8b32662496632eaf96d9a 100644 (file)
--- a/llint/LLIntThunks.cpp
+++ b/llint/LLIntThunks.cpp
@@ -37,6 +37,7 @@
 #include "LinkBuffer.h"
 #include "LowLevelInterpreter.h"
 #include "ProtoCallFrame.h"
+#include "StackAlignment.h"
 #include "VM.h"
 
 namespace JSC {
@@ -93,18 +94,27 @@ MacroAssemblerCodeRef programEntryThunkGenerator(VM* vm)
 
 // Non-JIT (i.e. C Loop LLINT) case:
 
-EncodedJSValue callToJavaScript(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)
+EncodedJSValue vmEntryToJavaScript(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)
 {
-    JSValue result = CLoop::execute(llint_call_to_javascript, executableAddress, vm, protoCallFrame);
+    JSValue result = CLoop::execute(llint_vm_entry_to_javascript, executableAddress, vm, protoCallFrame);
     return JSValue::encode(result);
 }
 
-EncodedJSValue callToNativeFunction(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)
+EncodedJSValue vmEntryToNative(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)
 {
-    JSValue result = CLoop::execute(llint_call_to_native_function, executableAddress, vm, protoCallFrame);
+    JSValue result = CLoop::execute(llint_vm_entry_to_native, executableAddress, vm, protoCallFrame);
     return JSValue::encode(result);
 }
 
+extern "C" VMEntryRecord* vmEntryRecord(VMEntryFrame* entryFrame)
+{
+    // The C Loop doesn't have any callee save registers, so the VMEntryRecord is allocated at the base of the frame.
+    intptr_t stackAlignment = stackAlignmentBytes();
+    intptr_t VMEntryTotalFrameSize = (sizeof(VMEntryRecord) + (stackAlignment - 1)) & ~(stackAlignment - 1);
+    return reinterpret_cast<VMEntryRecord*>(static_cast<char*>(entryFrame) - VMEntryTotalFrameSize);
+}
+
+
 #endif // ENABLE(JIT)
 
 } // namespace JSC