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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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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 #ifndef V8_FRAMES_H_ | 28 #ifndef V8_FRAMES_H_ |
29 #define V8_FRAMES_H_ | 29 #define V8_FRAMES_H_ |
30 | 30 |
| 31 #include "safepoint-table.h" |
| 32 |
31 namespace v8 { | 33 namespace v8 { |
32 namespace internal { | 34 namespace internal { |
33 | 35 |
34 typedef uint32_t RegList; | 36 typedef uint32_t RegList; |
35 | 37 |
36 // Get the number of registers in a given register list. | 38 // Get the number of registers in a given register list. |
37 int NumRegs(RegList list); | 39 int NumRegs(RegList list); |
38 | 40 |
39 // Return the code of the n-th saved register available to JavaScript. | 41 // Return the code of the n-th saved register available to JavaScript. |
40 int JSCallerSavedCode(int n); | 42 int JSCallerSavedCode(int n); |
41 | 43 |
42 | 44 |
43 // Forward declarations. | 45 // Forward declarations. |
44 class StackFrameIterator; | 46 class StackFrameIterator; |
45 class Top; | 47 class Top; |
46 class ThreadLocalTop; | 48 class ThreadLocalTop; |
47 | 49 |
48 | 50 |
49 class PcToCodeCache : AllStatic { | 51 class PcToCodeCache : AllStatic { |
50 public: | 52 public: |
51 struct PcToCodeCacheEntry { | 53 struct PcToCodeCacheEntry { |
52 Address pc; | 54 Address pc; |
53 Code* code; | 55 Code* code; |
54 uint8_t* safepoint_entry; | 56 SafepointEntry safepoint_entry; |
55 }; | 57 }; |
56 | 58 |
57 static PcToCodeCacheEntry* cache(int index) { | 59 static PcToCodeCacheEntry* cache(int index) { |
58 return &cache_[index]; | 60 return &cache_[index]; |
59 } | 61 } |
60 | 62 |
61 static Code* GcSafeFindCodeForPc(Address pc); | 63 static Code* GcSafeFindCodeForPc(Address pc); |
62 static Code* GcSafeCastToCode(HeapObject* object, Address pc); | 64 static Code* GcSafeCastToCode(HeapObject* object, Address pc); |
63 | 65 |
64 static void FlushPcToCodeCache() { | 66 static void FlushPcToCodeCache() { |
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201 | 203 |
202 // Get the code object that contains the given pc. | 204 // Get the code object that contains the given pc. |
203 static Code* GetContainingCode(Address pc) { | 205 static Code* GetContainingCode(Address pc) { |
204 return PcToCodeCache::GetCacheEntry(pc)->code; | 206 return PcToCodeCache::GetCacheEntry(pc)->code; |
205 } | 207 } |
206 | 208 |
207 // Get the code object containing the given pc and fill in the | 209 // Get the code object containing the given pc and fill in the |
208 // safepoint entry and the number of stack slots. The pc must be at | 210 // safepoint entry and the number of stack slots. The pc must be at |
209 // a safepoint. | 211 // a safepoint. |
210 static Code* GetSafepointData(Address pc, | 212 static Code* GetSafepointData(Address pc, |
211 uint8_t** safepoint_entry, | 213 SafepointEntry* safepoint_entry, |
212 unsigned* stack_slots); | 214 unsigned* stack_slots); |
213 | 215 |
214 virtual void Iterate(ObjectVisitor* v) const = 0; | 216 virtual void Iterate(ObjectVisitor* v) const = 0; |
215 static void IteratePc(ObjectVisitor* v, Address* pc_address, Code* holder); | 217 static void IteratePc(ObjectVisitor* v, Address* pc_address, Code* holder); |
216 | 218 |
217 | 219 |
218 // Printing support. | 220 // Printing support. |
219 enum PrintMode { OVERVIEW, DETAILS }; | 221 enum PrintMode { OVERVIEW, DETAILS }; |
220 virtual void Print(StringStream* accumulator, | 222 virtual void Print(StringStream* accumulator, |
221 PrintMode mode, | 223 PrintMode mode, |
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815 }; | 817 }; |
816 | 818 |
817 | 819 |
818 // Reads all frames on the current stack and copies them into the current | 820 // Reads all frames on the current stack and copies them into the current |
819 // zone memory. | 821 // zone memory. |
820 Vector<StackFrame*> CreateStackMap(); | 822 Vector<StackFrame*> CreateStackMap(); |
821 | 823 |
822 } } // namespace v8::internal | 824 } } // namespace v8::internal |
823 | 825 |
824 #endif // V8_FRAMES_H_ | 826 #endif // V8_FRAMES_H_ |
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