1 // Copyright 2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_IA32_SIMULATOR_IA32_H_ 29 #define V8_IA32_SIMULATOR_IA32_H_ 30 31 #include "allocation.h" 32 33 namespace v8 { 34 namespace internal { 35 36 // Since there is no simulator for the ia32 architecture the only thing we can 37 // do is to call the entry directly. 38 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 39 (entry(p0, p1, p2, p3, p4)) 40 41 42 typedef int (*regexp_matcher)(String*, int, const byte*, 43 const byte*, 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) \ 48 (FUNCTION_CAST<regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7)) 49 50 51 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 52 (reinterpret_cast<TryCatch*>(try_catch_address)) 53 54 // The stack limit beyond which we will throw stack overflow errors in 55 // generated code. Because generated code on ia32 uses the C stack, we 56 // just use the C stack limit. 57 class SimulatorStack : public v8::internal::AllStatic { 58 public: 59 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 60 uintptr_t c_limit) { 61 USE(isolate); 62 return c_limit; 63 } 64 65 static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) { 66 return try_catch_address; 67 } 68 69 static inline void UnregisterCTryCatch() { } 70 }; 71 72 } } // namespace v8::internal 73 74 #endif // V8_IA32_SIMULATOR_IA32_H_ 75
