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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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233 Push(src2, src3, src4, cond); | 233 Push(src2, src3, src4, cond); |
234 } | 234 } |
235 } | 235 } |
236 | 236 |
237 // Push and pop the registers that can hold pointers, as defined by the | 237 // Push and pop the registers that can hold pointers, as defined by the |
238 // RegList constant kSafepointSavedRegisters. | 238 // RegList constant kSafepointSavedRegisters. |
239 void PushSafepointRegisters(); | 239 void PushSafepointRegisters(); |
240 void PopSafepointRegisters(); | 240 void PopSafepointRegisters(); |
241 void PushSafepointRegistersAndDoubles(); | 241 void PushSafepointRegistersAndDoubles(); |
242 void PopSafepointRegistersAndDoubles(); | 242 void PopSafepointRegistersAndDoubles(); |
243 void StoreToSafepointRegisterSlot(Register reg); | 243 // Store value in register src in the safepoint stack slot for |
244 void StoreToSafepointRegistersAndDoublesSlot(Register reg); | 244 // register dst. |
245 void LoadFromSafepointRegisterSlot(Register reg); | 245 void StoreToSafepointRegisterSlot(Register src, Register dst); |
246 static int SafepointRegisterStackIndex(int reg_code); | 246 void StoreToSafepointRegistersAndDoublesSlot(Register src, Register dst); |
247 static MemOperand SafepointRegisterSlot(Register reg); | 247 // Load the value of the src register from its safepoint stack slot |
248 static MemOperand SafepointRegistersAndDoublesSlot(Register reg); | 248 // into register dst. |
| 249 void LoadFromSafepointRegisterSlot(Register dst, Register src); |
249 | 250 |
250 // Load two consecutive registers with two consecutive memory locations. | 251 // Load two consecutive registers with two consecutive memory locations. |
251 void Ldrd(Register dst1, | 252 void Ldrd(Register dst1, |
252 Register dst2, | 253 Register dst2, |
253 const MemOperand& src, | 254 const MemOperand& src, |
254 Condition cond = al); | 255 Condition cond = al); |
255 | 256 |
256 // Store two consecutive registers to two consecutive memory locations. | 257 // Store two consecutive registers to two consecutive memory locations. |
257 void Strd(Register src1, | 258 void Strd(Register src1, |
258 Register src2, | 259 Register src2, |
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876 // Activation support. | 877 // Activation support. |
877 void EnterFrame(StackFrame::Type type); | 878 void EnterFrame(StackFrame::Type type); |
878 void LeaveFrame(StackFrame::Type type); | 879 void LeaveFrame(StackFrame::Type type); |
879 | 880 |
880 void InitializeNewString(Register string, | 881 void InitializeNewString(Register string, |
881 Register length, | 882 Register length, |
882 Heap::RootListIndex map_index, | 883 Heap::RootListIndex map_index, |
883 Register scratch1, | 884 Register scratch1, |
884 Register scratch2); | 885 Register scratch2); |
885 | 886 |
| 887 // Compute memory operands for safepoint stack slots. |
| 888 static int SafepointRegisterStackIndex(int reg_code); |
| 889 MemOperand SafepointRegisterSlot(Register reg); |
| 890 MemOperand SafepointRegistersAndDoublesSlot(Register reg); |
| 891 |
886 bool generating_stub_; | 892 bool generating_stub_; |
887 bool allow_stub_calls_; | 893 bool allow_stub_calls_; |
888 // This handle will be patched with the code object on installation. | 894 // This handle will be patched with the code object on installation. |
889 Handle<Object> code_object_; | 895 Handle<Object> code_object_; |
| 896 |
| 897 // Needs access to SafepointRegisterStackIndex for optimized frame |
| 898 // traversal. |
| 899 friend class OptimizedFrame; |
890 }; | 900 }; |
891 | 901 |
892 | 902 |
893 #ifdef ENABLE_DEBUGGER_SUPPORT | 903 #ifdef ENABLE_DEBUGGER_SUPPORT |
894 // The code patcher is used to patch (typically) small parts of code e.g. for | 904 // The code patcher is used to patch (typically) small parts of code e.g. for |
895 // debugging and other types of instrumentation. When using the code patcher | 905 // debugging and other types of instrumentation. When using the code patcher |
896 // the exact number of bytes specified must be emitted. It is not legal to emit | 906 // the exact number of bytes specified must be emitted. It is not legal to emit |
897 // relocation information. If any of these constraints are violated it causes | 907 // relocation information. If any of these constraints are violated it causes |
898 // an assertion to fail. | 908 // an assertion to fail. |
899 class CodePatcher { | 909 class CodePatcher { |
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953 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 963 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
954 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 964 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
955 #else | 965 #else |
956 #define ACCESS_MASM(masm) masm-> | 966 #define ACCESS_MASM(masm) masm-> |
957 #endif | 967 #endif |
958 | 968 |
959 | 969 |
960 } } // namespace v8::internal | 970 } } // namespace v8::internal |
961 | 971 |
962 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 972 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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