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simulator-x64.h
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27 
28 #ifndef V8_X64_SIMULATOR_X64_H_
29 #define V8_X64_SIMULATOR_X64_H_
30 
31 #include "allocation.h"
32 
33 namespace v8 {
34 namespace internal {
35 
36 // Since there is no simulator for the x64 architecture the only thing we can
37 // do is to call the entry directly.
38 // TODO(X64): Don't pass p0, since it isn't used?
39 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
40  (entry(p0, p1, p2, p3, p4))
41 
42 typedef int (*regexp_matcher)(String*, int, const byte*,
43  const byte*, int*, int, Address, int, Isolate*);
44 
45 // Call the generated regexp code directly. The code at the entry address should
46 // expect eight int/pointer sized arguments and return an int.
47 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
48  (FUNCTION_CAST<regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8))
49 
50 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
51  (reinterpret_cast<TryCatch*>(try_catch_address))
52 
53 // The stack limit beyond which we will throw stack overflow errors in
54 // generated code. Because generated code on x64 uses the C stack, we
55 // just use the C stack limit.
56 class SimulatorStack : public v8::internal::AllStatic {
57  public:
58  static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
59  uintptr_t c_limit) {
60  return c_limit;
61  }
62 
63  static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) {
64  return try_catch_address;
65  }
66 
67  static inline void UnregisterCTryCatch() { }
68 };
69 
70 } } // namespace v8::internal
71 
72 #endif // V8_X64_SIMULATOR_X64_H_
byte * Address
Definition: globals.h:186
static uintptr_t JsLimitFromCLimit(Isolate *isolate, uintptr_t c_limit)
Definition: simulator-x64.h:58
static void UnregisterCTryCatch()
Definition: simulator-x64.h:67
uint8_t byte
Definition: globals.h:185
int(* regexp_matcher)(String *, int, const byte *, const byte *, int *, int, Address, int, Isolate *)
static uintptr_t RegisterCTryCatch(uintptr_t try_catch_address)
Definition: simulator-x64.h:63