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_X87_SIMULATOR_X87_H_ 6 #define V8_X87_SIMULATOR_X87_H_ 7 8 #include "src/allocation.h" 9 10 namespace v8 { 11 namespace internal { 12 13 // Since there is no simulator for the ia32 architecture the only thing we can 14 // do is to call the entry directly. 15 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \ 16 (entry(p0, p1, p2, p3, p4)) 17 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(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \ 25 p7, p8) \ 26 (FUNCTION_CAST<regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8)) 27 28 29 // The stack limit beyond which we will throw stack overflow errors in 30 // generated code. Because generated code on ia32 uses the C stack, we 31 // just use the C stack limit. 32 class SimulatorStack : public v8::internal::AllStatic { 33 public: JsLimitFromCLimit(Isolate * isolate,uintptr_t c_limit)34 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 35 uintptr_t c_limit) { 36 USE(isolate); 37 return c_limit; 38 } 39 RegisterCTryCatch(Isolate * isolate,uintptr_t try_catch_address)40 static inline uintptr_t RegisterCTryCatch(Isolate* isolate, 41 uintptr_t try_catch_address) { 42 USE(isolate); 43 return try_catch_address; 44 } 45 UnregisterCTryCatch(Isolate * isolate)46 static inline void UnregisterCTryCatch(Isolate* isolate) { USE(isolate); } 47 }; 48 49 } // namespace internal 50 } // namespace v8 51 52 #endif // V8_X87_SIMULATOR_X87_H_ 53