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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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35 #if defined(V8_TARGET_ARCH_ARM) | 35 #if defined(V8_TARGET_ARCH_ARM) |
36 | 36 |
37 #include "cpu.h" | 37 #include "cpu.h" |
38 #include "macro-assembler.h" | 38 #include "macro-assembler.h" |
39 #include "simulator.h" // for cache flushing. | 39 #include "simulator.h" // for cache flushing. |
40 | 40 |
41 namespace v8 { | 41 namespace v8 { |
42 namespace internal { | 42 namespace internal { |
43 | 43 |
44 void CPU::Setup() { | 44 void CPU::Setup() { |
45 CpuFeatures* cpu_features = Isolate::Current()->cpu_features(); | 45 CpuFeatures::Probe(true); |
46 cpu_features->Probe(true); | |
47 if (!cpu_features->IsSupported(VFP3) || Serializer::enabled()) { | |
48 V8::DisableCrankshaft(); | |
49 } | |
50 } | 46 } |
51 | 47 |
52 | 48 |
| 49 bool CPU::SupportsCrankshaft() { |
| 50 return CpuFeatures::IsSupported(VFP3); |
| 51 } |
| 52 |
| 53 |
53 void CPU::FlushICache(void* start, size_t size) { | 54 void CPU::FlushICache(void* start, size_t size) { |
54 // Nothing to do flushing no instructions. | 55 // Nothing to do flushing no instructions. |
55 if (size == 0) { | 56 if (size == 0) { |
56 return; | 57 return; |
57 } | 58 } |
58 | 59 |
59 #if defined (USE_SIMULATOR) | 60 #if defined (USE_SIMULATOR) |
60 // Not generating ARM instructions for C-code. This means that we are | 61 // Not generating ARM instructions for C-code. This means that we are |
61 // building an ARM emulator based target. We should notify the simulator | 62 // building an ARM emulator based target. We should notify the simulator |
62 // that the Icache was flushed. | 63 // that the Icache was flushed. |
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139 #if !defined (__arm__) || !defined(CAN_USE_ARMV5_INSTRUCTIONS) | 140 #if !defined (__arm__) || !defined(CAN_USE_ARMV5_INSTRUCTIONS) |
140 UNIMPLEMENTED(); // when building ARM emulator target | 141 UNIMPLEMENTED(); // when building ARM emulator target |
141 #else | 142 #else |
142 asm volatile("bkpt 0"); | 143 asm volatile("bkpt 0"); |
143 #endif | 144 #endif |
144 } | 145 } |
145 | 146 |
146 } } // namespace v8::internal | 147 } } // namespace v8::internal |
147 | 148 |
148 #endif // V8_TARGET_ARCH_ARM | 149 #endif // V8_TARGET_ARCH_ARM |
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