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

Issue 2752143003: [regexp] Remove remainder of native RegExpExecStub (Closed)
Patch Set: Fix arm compilation Created 3 years, 8 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 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 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 ARM instructions if we are not generating a native 6 // Declares a Simulator for ARM instructions if we are not generating a native
7 // ARM binary. This Simulator allows us to run and debug ARM code generation on 7 // ARM binary. This Simulator allows us to run and debug ARM code generation on
8 // regular desktop machines. 8 // 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
11 // on a ARM HW platform. 11 // on a ARM HW platform.
12 12
13 #ifndef V8_ARM_SIMULATOR_ARM_H_ 13 #ifndef V8_ARM_SIMULATOR_ARM_H_
14 #define V8_ARM_SIMULATOR_ARM_H_ 14 #define V8_ARM_SIMULATOR_ARM_H_
15 15
16 #include "src/allocation.h" 16 #include "src/allocation.h"
17 #include "src/base/lazy-instance.h" 17 #include "src/base/lazy-instance.h"
18 #include "src/base/platform/mutex.h" 18 #include "src/base/platform/mutex.h"
19 19
20 #if !defined(USE_SIMULATOR) 20 #if !defined(USE_SIMULATOR)
21 // Running without a simulator on a native arm platform. 21 // Running without a simulator on a native arm platform.
22 22
23 namespace v8 { 23 namespace v8 {
24 namespace internal { 24 namespace internal {
25 25
26 // When running without a simulator we call the entry directly. 26 // When running without a simulator we call the entry directly.
27 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \ 27 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \
28 (entry(p0, p1, p2, p3, p4)) 28 (entry(p0, p1, p2, p3, p4))
29 29
30 typedef int (*arm_regexp_matcher)(String*, int, const byte*, const byte*, 30 typedef int (*arm_regexp_matcher)(String*, int, const byte*, const byte*, int*,
31 void*, int*, int, Address, int, Isolate*); 31 int, Address, int, Isolate*);
32
33 32
34 // Call the generated regexp code directly. The code at the entry address 33 // Call the generated regexp code directly. The code at the entry address
35 // should act as a function matching the type arm_regexp_matcher. 34 // should act as a function matching the type arm_regexp_matcher.
36 // The fifth argument is a dummy that reserves the space used for 35 // The fifth argument is a dummy that reserves the space used for
37 // the return address added by the ExitFrame in native calls. 36 // the return address added by the ExitFrame in native calls.
38 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \ 37 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
39 p7, p8) \ 38 p7, p8) \
40 (FUNCTION_CAST<arm_regexp_matcher>(entry)(p0, p1, p2, p3, NULL, p4, p5, p6, \ 39 (FUNCTION_CAST<arm_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8))
41 p7, p8))
42 40
43 // The stack limit beyond which we will throw stack overflow errors in 41 // The stack limit beyond which we will throw stack overflow errors in
44 // generated code. Because generated code on arm uses the C stack, we 42 // generated code. Because generated code on arm uses the C stack, we
45 // just use the C stack limit. 43 // just use the C stack limit.
46 class SimulatorStack : public v8::internal::AllStatic { 44 class SimulatorStack : public v8::internal::AllStatic {
47 public: 45 public:
48 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate, 46 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate,
49 uintptr_t c_limit) { 47 uintptr_t c_limit) {
50 USE(isolate); 48 USE(isolate);
51 return c_limit; 49 return c_limit;
(...skipping 490 matching lines...) Expand 10 before | Expand all | Expand 10 after
542 // point. 540 // point.
543 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \ 541 #define CALL_GENERATED_CODE(isolate, entry, p0, p1, p2, p3, p4) \
544 reinterpret_cast<Object*>(Simulator::current(isolate)->Call( \ 542 reinterpret_cast<Object*>(Simulator::current(isolate)->Call( \
545 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4)) 543 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
546 544
547 #define CALL_GENERATED_FP_INT(isolate, entry, p0, p1) \ 545 #define CALL_GENERATED_FP_INT(isolate, entry, p0, p1) \
548 Simulator::current(isolate)->CallFPReturnsInt(FUNCTION_ADDR(entry), p0, p1) 546 Simulator::current(isolate)->CallFPReturnsInt(FUNCTION_ADDR(entry), p0, p1)
549 547
550 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \ 548 #define CALL_GENERATED_REGEXP_CODE(isolate, entry, p0, p1, p2, p3, p4, p5, p6, \
551 p7, p8) \ 549 p7, p8) \
552 Simulator::current(isolate) \ 550 Simulator::current(isolate)->Call(entry, 10, p0, p1, p2, p3, p4, p5, p6, p7, \
553 ->Call(entry, 10, p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8) 551 p8)
554
555 552
556 // The simulator has its own stack. Thus it has a different stack limit from 553 // The simulator has its own stack. Thus it has a different stack limit from
557 // the C-based native code. The JS-based limit normally points near the end of 554 // the C-based native code. The JS-based limit normally points near the end of
558 // the simulator stack. When the C-based limit is exhausted we reflect that by 555 // the simulator stack. When the C-based limit is exhausted we reflect that by
559 // lowering the JS-based limit as well, to make stack checks trigger. 556 // lowering the JS-based limit as well, to make stack checks trigger.
560 class SimulatorStack : public v8::internal::AllStatic { 557 class SimulatorStack : public v8::internal::AllStatic {
561 public: 558 public:
562 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate, 559 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate,
563 uintptr_t c_limit) { 560 uintptr_t c_limit) {
564 return Simulator::current(isolate)->StackLimit(c_limit); 561 return Simulator::current(isolate)->StackLimit(c_limit);
565 } 562 }
566 563
567 static inline uintptr_t RegisterCTryCatch(v8::internal::Isolate* isolate, 564 static inline uintptr_t RegisterCTryCatch(v8::internal::Isolate* isolate,
568 uintptr_t try_catch_address) { 565 uintptr_t try_catch_address) {
569 Simulator* sim = Simulator::current(isolate); 566 Simulator* sim = Simulator::current(isolate);
570 return sim->PushAddress(try_catch_address); 567 return sim->PushAddress(try_catch_address);
571 } 568 }
572 569
573 static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) { 570 static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) {
574 Simulator::current(isolate)->PopAddress(); 571 Simulator::current(isolate)->PopAddress();
575 } 572 }
576 }; 573 };
577 574
578 } // namespace internal 575 } // namespace internal
579 } // namespace v8 576 } // namespace v8
580 577
581 #endif // !defined(USE_SIMULATOR) 578 #endif // !defined(USE_SIMULATOR)
582 #endif // V8_ARM_SIMULATOR_ARM_H_ 579 #endif // V8_ARM_SIMULATOR_ARM_H_
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