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Side by Side Diff: src/mips64/simulator-mips64.h

Issue 1638303005: MIPS64: Eliminate ABI-dependent definitions. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 5
6 // Declares a Simulator for MIPS instructions if we are not generating a native 6 // Declares a Simulator for MIPS instructions if we are not generating a native
7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation 7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation
8 // on regular desktop machines. 8 // on regular desktop machines.
9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, 9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro,
10 // which will start execution in the Simulator or forwards to the real entry 10 // which will start execution in the Simulator or forwards to the real entry
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24 24
25 // When running without a simulator we call the entry directly. 25 // When running without a simulator we call the entry directly.
26 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \ 26 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \
27 entry(p0, p1, p2, p3, p4) 27 entry(p0, p1, p2, p3, p4)
28 28
29 29
30 // Call the generated regexp code directly. The code at the entry address 30 // Call the generated regexp code directly. The code at the entry address
31 // should act as a function matching the type arm_regexp_matcher. 31 // should act as a function matching the type arm_regexp_matcher.
32 // The fifth (or ninth) argument is a dummy that reserves the space used for 32 // The fifth (or ninth) argument is a dummy that reserves the space used for
33 // the return address added by the ExitFrame in native calls. 33 // the return address added by the ExitFrame in native calls.
34 #ifdef MIPS_ABI_N64
35 typedef int (*mips_regexp_matcher)(String* input, 34 typedef int (*mips_regexp_matcher)(String* input,
36 int64_t start_offset, 35 int64_t start_offset,
37 const byte* input_start, 36 const byte* input_start,
38 const byte* input_end, 37 const byte* input_end,
39 int* output, 38 int* output,
40 int64_t output_size, 39 int64_t output_size,
41 Address stack_base, 40 Address stack_base,
42 int64_t direct_call, 41 int64_t direct_call,
43 void* return_address, 42 void* return_address,
44 Isolate* isolate); 43 Isolate* isolate);
45 44
46 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \ 45 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
47 p7, p8) \ 46 p7, p8) \
48 (FUNCTION_CAST<mips_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, \ 47 (FUNCTION_CAST<mips_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, \
49 NULL, p8)) 48 NULL, p8))
50 49
51 #else // O32 Abi.
52
53 typedef int (*mips_regexp_matcher)(String* input,
54 int32_t start_offset,
55 const byte* input_start,
56 const byte* input_end,
57 void* return_address,
58 int* output,
59 int32_t output_size,
60 Address stack_base,
61 int32_t direct_call,
62 Isolate* isolate);
63
64 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
65 p7, p8) \
66 (FUNCTION_CAST<mips_regexp_matcher>(entry)(p0, p1, p2, p3, NULL, p4, p5, p6, \
67 p7, p8))
68
69 #endif // MIPS_ABI_N64
70
71 50
72 // The stack limit beyond which we will throw stack overflow errors in 51 // The stack limit beyond which we will throw stack overflow errors in
73 // generated code. Because generated code on mips uses the C stack, we 52 // generated code. Because generated code on mips uses the C stack, we
74 // just use the C stack limit. 53 // just use the C stack limit.
75 class SimulatorStack : public v8::internal::AllStatic { 54 class SimulatorStack : public v8::internal::AllStatic {
76 public: 55 public:
77 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 56 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
78 uintptr_t c_limit) { 57 uintptr_t c_limit) {
79 return c_limit; 58 return c_limit;
80 } 59 }
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509 488
510 // When running with the simulator transition into simulated execution at this 489 // When running with the simulator transition into simulated execution at this
511 // point. 490 // point.
512 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \ 491 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \
513 reinterpret_cast<Object*>(Simulator::current(isolate)->Call( \ 492 reinterpret_cast<Object*>(Simulator::current(isolate)->Call( \
514 FUNCTION_ADDR(entry), 5, reinterpret_cast<int64_t*>(p0), \ 493 FUNCTION_ADDR(entry), 5, reinterpret_cast<int64_t*>(p0), \
515 reinterpret_cast<int64_t*>(p1), reinterpret_cast<int64_t*>(p2), \ 494 reinterpret_cast<int64_t*>(p1), reinterpret_cast<int64_t*>(p2), \
516 reinterpret_cast<int64_t*>(p3), reinterpret_cast<int64_t*>(p4))) 495 reinterpret_cast<int64_t*>(p3), reinterpret_cast<int64_t*>(p4)))
517 496
518 497
519 #ifdef MIPS_ABI_N64
520 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \ 498 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
521 p7, p8) \ 499 p7, p8) \
522 static_cast<int>(Simulator::current(isolate)->Call( \ 500 static_cast<int>(Simulator::current(isolate)->Call( \
523 entry, 10, p0, p1, p2, p3, p4, reinterpret_cast<int64_t*>(p5), p6, p7, \ 501 entry, 10, p0, p1, p2, p3, p4, reinterpret_cast<int64_t*>(p5), p6, p7, \
524 NULL, p8)) 502 NULL, p8))
525 #else // Must be O32 Abi.
526 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
527 p7, p8) \
528 static_cast<int>(Simulator::current(isolate)->Call( \
529 entry, 10, p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8))
530 #endif // MIPS_ABI_N64
531 503
532 504
533 // The simulator has its own stack. Thus it has a different stack limit from 505 // The simulator has its own stack. Thus it has a different stack limit from
534 // the C-based native code. The JS-based limit normally points near the end of 506 // the C-based native code. The JS-based limit normally points near the end of
535 // the simulator stack. When the C-based limit is exhausted we reflect that by 507 // the simulator stack. When the C-based limit is exhausted we reflect that by
536 // lowering the JS-based limit as well, to make stack checks trigger. 508 // lowering the JS-based limit as well, to make stack checks trigger.
537 class SimulatorStack : public v8::internal::AllStatic { 509 class SimulatorStack : public v8::internal::AllStatic {
538 public: 510 public:
539 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 511 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
540 uintptr_t c_limit) { 512 uintptr_t c_limit) {
541 return Simulator::current(isolate)->StackLimit(c_limit); 513 return Simulator::current(isolate)->StackLimit(c_limit);
542 } 514 }
543 515
544 static inline uintptr_t RegisterCTryCatch(Isolate* isolate, 516 static inline uintptr_t RegisterCTryCatch(Isolate* isolate,
545 uintptr_t try_catch_address) { 517 uintptr_t try_catch_address) {
546 Simulator* sim = Simulator::current(isolate); 518 Simulator* sim = Simulator::current(isolate);
547 return sim->PushAddress(try_catch_address); 519 return sim->PushAddress(try_catch_address);
548 } 520 }
549 521
550 static inline void UnregisterCTryCatch(Isolate* isolate) { 522 static inline void UnregisterCTryCatch(Isolate* isolate) {
551 Simulator::current(isolate)->PopAddress(); 523 Simulator::current(isolate)->PopAddress();
552 } 524 }
553 }; 525 };
554 526
555 } // namespace internal 527 } // namespace internal
556 } // namespace v8 528 } // namespace v8
557 529
558 #endif // !defined(USE_SIMULATOR) 530 #endif // !defined(USE_SIMULATOR)
559 #endif // V8_MIPS_SIMULATOR_MIPS_H_ 531 #endif // V8_MIPS_SIMULATOR_MIPS_H_
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