1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_X64_SIMULATOR_X64_H_ 6 #define V8_X64_SIMULATOR_X64_H_ 7 8 #include "src/allocation.h" 9 10 namespace v8 { 11 namespace internal { 12 13 // Since there is no simulator for the x64 architecture the only thing we can 14 // do is to call the entry directly. 15 // TODO(X64): Don't pass p0, since it isn't used? 16 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 17 (entry(p0, p1, p2, p3, p4)) 18 19 typedef int (*regexp_matcher)(String*, int, const byte*, 20 const byte*, int*, int, Address, int, Isolate*); 21 22 // Call the generated regexp code directly. The code at the entry address should 23 // expect eight int/pointer sized arguments and return an int. 24 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \ 25 (FUNCTION_CAST<regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8)) 26 27 // The stack limit beyond which we will throw stack overflow errors in 28 // generated code. Because generated code on x64 uses the C stack, we 29 // just use the C stack limit. 30 class SimulatorStack : public v8::internal::AllStatic { 31 public: 32 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 33 uintptr_t c_limit) { 34 return c_limit; 35 } 36 37 static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) { 38 return try_catch_address; 39 } 40 41 static inline void UnregisterCTryCatch() { } 42 }; 43 44 } } // namespace v8::internal 45 46 #endif // V8_X64_SIMULATOR_X64_H_ 47
