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_IA32_SIMULATOR_IA32_H_
6#define V8_IA32_SIMULATOR_IA32_H_
7
8#include "src/allocation.h"
9
10namespace v8 {
11namespace 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
19typedef 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.
32class SimulatorStack : public v8::internal::AllStatic {
33 public:
34  static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
35                                            uintptr_t c_limit) {
36    USE(isolate);
37    return c_limit;
38  }
39
40  static inline uintptr_t RegisterCTryCatch(v8::internal::Isolate* isolate,
41                                            uintptr_t try_catch_address) {
42    USE(isolate);
43    return try_catch_address;
44  }
45
46  static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) {
47    USE(isolate);
48  }
49};
50
51}  // namespace internal
52}  // namespace v8
53
54#endif  // V8_IA32_SIMULATOR_IA32_H_
55