JavaScriptCore-7601.1.46.3.tar.gz

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

diff --git a/llint/LLIntThunks.cpp b/llint/LLIntThunks.cpp
index b4d0264234b6685b3fe27d590dba5221cc9bc23c..8ab96b30475fd554def8b32662496632eaf96d9a 100644 (file)
--- a/llint/LLIntThunks.cpp
+++ b/llint/LLIntThunks.cpp
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (C) 2012 Apple Inc. All rights reserved.
+ * Copyright (C) 2012, 2013 Apple Inc. All rights reserved.

  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions


@@ -26,58 +26,95 @@
 #include "config.h"
 #include "LLIntThunks.h"
 
 #include "config.h"
 #include "LLIntThunks.h"
 

-#if ENABLE(LLINT)
-
+#include "CallData.h"
+#include "ExceptionHelpers.h"
+#include "Interpreter.h"
+#include "JSCJSValueInlines.h"

 #include "JSInterfaceJIT.h"
 #include "JSObject.h"
 #include "JSInterfaceJIT.h"
 #include "JSObject.h"

+#include "JSStackInlines.h"
+#include "LLIntCLoop.h"

 #include "LinkBuffer.h"
 #include "LowLevelInterpreter.h"
 #include "LinkBuffer.h"
 #include "LowLevelInterpreter.h"

-#include "ScopeChain.h"
+#include "ProtoCallFrame.h"
+#include "StackAlignment.h"
+#include "VM.h"
+
+namespace JSC {

 
 

-namespace JSC { namespace LLInt {
+#if ENABLE(JIT)

 
 

-static MacroAssemblerCodeRef generateThunkWithJumpTo(JSGlobalData* globalData, void (*target)())
+namespace LLInt {
+
+static MacroAssemblerCodeRef generateThunkWithJumpTo(VM* vm, void (*target)(), const char *thunkKind)

 {
 {

-    JSInterfaceJIT jit;
+    JSInterfaceJIT jit(vm);

     
     // FIXME: there's probably a better way to do it on X86, but I'm not sure I care.
     jit.move(JSInterfaceJIT::TrustedImmPtr(bitwise_cast<void*>(target)), JSInterfaceJIT::regT0);
     jit.jump(JSInterfaceJIT::regT0);
     
     
     // FIXME: there's probably a better way to do it on X86, but I'm not sure I care.
     jit.move(JSInterfaceJIT::TrustedImmPtr(bitwise_cast<void*>(target)), JSInterfaceJIT::regT0);
     jit.jump(JSInterfaceJIT::regT0);
     

-    LinkBuffer patchBuffer(*globalData, &jit, GLOBAL_THUNK_ID);
-    return patchBuffer.finalizeCode();
+    LinkBuffer patchBuffer(*vm, jit, GLOBAL_THUNK_ID);
+    return FINALIZE_CODE(patchBuffer, ("LLInt %s prologue thunk", thunkKind));
+}
+
+MacroAssemblerCodeRef functionForCallEntryThunkGenerator(VM* vm)
+{
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_function_for_call_prologue), "function for call");
+}
+
+MacroAssemblerCodeRef functionForConstructEntryThunkGenerator(VM* vm)
+{
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_function_for_construct_prologue), "function for construct");
+}
+
+MacroAssemblerCodeRef functionForCallArityCheckThunkGenerator(VM* vm)
+{
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_function_for_call_arity_check), "function for call with arity check");

 }
 
 }
 

-MacroAssemblerCodeRef functionForCallEntryThunkGenerator(JSGlobalData* globalData)
+MacroAssemblerCodeRef functionForConstructArityCheckThunkGenerator(VM* vm)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_function_for_call_prologue);
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_function_for_construct_arity_check), "function for construct with arity check");

 }
 
 }
 

-MacroAssemblerCodeRef functionForConstructEntryThunkGenerator(JSGlobalData* globalData)
+MacroAssemblerCodeRef evalEntryThunkGenerator(VM* vm)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_function_for_construct_prologue);
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_eval_prologue), "eval");

 }
 
 }
 

-MacroAssemblerCodeRef functionForCallArityCheckThunkGenerator(JSGlobalData* globalData)
+MacroAssemblerCodeRef programEntryThunkGenerator(VM* vm)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_function_for_call_arity_check);
+    return generateThunkWithJumpTo(vm, LLInt::getCodeFunctionPtr(llint_program_prologue), "program");

 }
 
 }
 

-MacroAssemblerCodeRef functionForConstructArityCheckThunkGenerator(JSGlobalData* globalData)
+} // namespace LLInt
+
+#else // ENABLE(JIT)
+
+// Non-JIT (i.e. C Loop LLINT) case:
+
+EncodedJSValue vmEntryToJavaScript(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_function_for_construct_arity_check);
+    JSValue result = CLoop::execute(llint_vm_entry_to_javascript, executableAddress, vm, protoCallFrame);
+    return JSValue::encode(result);

 }
 
 }
 

-MacroAssemblerCodeRef evalEntryThunkGenerator(JSGlobalData* globalData)
+EncodedJSValue vmEntryToNative(void* executableAddress, VM* vm, ProtoCallFrame* protoCallFrame)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_eval_prologue);
+    JSValue result = CLoop::execute(llint_vm_entry_to_native, executableAddress, vm, protoCallFrame);
+    return JSValue::encode(result);

 }
 
 }
 

-MacroAssemblerCodeRef programEntryThunkGenerator(JSGlobalData* globalData)
+extern "C" VMEntryRecord* vmEntryRecord(VMEntryFrame* entryFrame)

 {
 {

-    return generateThunkWithJumpTo(globalData, llint_program_prologue);
+    // 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);

 }
 
 }
 

-} } // namespace JSC::LLInt

 
 

-#endif // ENABLE(LLINT)
+#endif // ENABLE(JIT)
+
+} // namespace JSC