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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2011-2012 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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
| 28 #include <unistd.h> |
| 29 #include <sys/syscall.h> |
| 30 #include <asm/cachectl.h> |
| 31 |
28 #include "v8.h" | 32 #include "v8.h" |
29 | 33 |
30 #if defined(V8_TARGET_ARCH_IA32) | 34 #if defined(V8_TARGET_ARCH_SH4) |
31 | 35 |
32 #include "frames-inl.h" | 36 #include "cpu.h" |
| 37 #include "macro-assembler.h" |
33 | 38 |
34 namespace v8 { | 39 namespace v8 { |
35 namespace internal { | 40 namespace internal { |
36 | 41 |
37 | 42 void CPU::SetUp() { |
38 Address ExitFrame::ComputeStackPointer(Address fp) { | 43 CpuFeatures::Probe(); |
39 return Memory::Address_at(fp + ExitFrameConstants::kSPOffset); | |
40 } | 44 } |
41 | 45 |
42 | 46 |
| 47 bool CPU::SupportsCrankshaft() { |
| 48 return false; |
| 49 } |
| 50 |
| 51 |
| 52 void CPU::FlushICache(void* start, size_t size) { |
| 53 // Invalidate the instruction and the data cache |
| 54 syscall(__NR_cacheflush, start, size, CACHEFLUSH_D_WB | CACHEFLUSH_I); |
| 55 } |
| 56 |
| 57 |
| 58 void CPU::DebugBreak() { |
| 59 asm("ldtlb"); |
| 60 } |
| 61 |
43 } } // namespace v8::internal | 62 } } // namespace v8::internal |
44 | 63 |
45 #endif // V8_TARGET_ARCH_IA32 | 64 #endif // V8_TARGET_ARCH_SH4 |
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