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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 // The class 'AssemblerMacros' contains assembler instruction groups that |
| 5 // are used in Dart. |
| 6 |
| 7 #ifndef VM_ASSEMBLER_MACROS_ARM_H_ |
| 8 #define VM_ASSEMBLER_MACROS_ARM_H_ |
| 9 |
| 10 #ifndef VM_ASSEMBLER_MACROS_H_ |
| 11 #error Do not include assembler_macros_arm.h directly; use assembler_macros.h. |
| 12 #endif |
| 13 |
| 14 #include "vm/allocation.h" |
| 15 #include "vm/constants_arm.h" |
| 16 |
| 17 namespace dart { |
| 18 |
| 19 // Forward declarations. |
| 20 class Assembler; |
| 21 class Class; |
| 22 class Label; |
| 23 |
| 24 class AssemblerMacros : public AllStatic { |
| 25 public: |
| 26 // Inlined allocation of an instance of class 'cls', code has no runtime |
| 27 // calls. Jump to 'failure' if the instance cannot be allocated here. |
| 28 // Allocated instance is returned in 'instance_reg'. |
| 29 // Only the tags field of the object is initialized. |
| 30 static void TryAllocate(Assembler* assembler, |
| 31 const Class& cls, |
| 32 Label* failure, |
| 33 bool near_jump, |
| 34 Register instance_reg); |
| 35 |
| 36 // Set up a dart frame on entry with a frame pointer and PC information to |
| 37 // enable easy access to the RawInstruction object of code corresponding |
| 38 // to this frame. |
| 39 static void EnterDartFrame(Assembler* assembler, intptr_t frame_size); |
| 40 |
| 41 // Set up a stub frame so that the stack traversal code can easily identify |
| 42 // a stub frame. |
| 43 static void EnterStubFrame(Assembler* assembler); |
| 44 |
| 45 // Instruction pattern from entrypoint is used in dart frame prologs |
| 46 // to set up the frame and save a PC which can be used to figure out the |
| 47 // RawInstruction object corresponding to the code running in the frame. |
| 48 static const intptr_t kOffsetOfSavedPCfromEntrypoint = -1; // UNIMPLEMENTED. |
| 49 }; |
| 50 |
| 51 } // namespace dart. |
| 52 |
| 53 #endif // VM_ASSEMBLER_MACROS_ARM_H_ |
| 54 |
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