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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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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_ARM_MACRO_ASSEMBLER_ARM_H_ | 28 #ifndef V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
29 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 29 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
30 | 30 |
31 #include "assembler.h" | 31 #include "assembler.h" |
32 #include "frames.h" | |
33 #include "v8globals.h" | 32 #include "v8globals.h" |
34 | 33 |
35 namespace v8 { | 34 namespace v8 { |
36 namespace internal { | 35 namespace internal { |
37 | 36 |
38 // ---------------------------------------------------------------------------- | 37 // ---------------------------------------------------------------------------- |
39 // Static helper functions | 38 // Static helper functions |
40 | 39 |
41 // Generate a MemOperand for loading a field from an object. | 40 // Generate a MemOperand for loading a field from an object. |
42 static inline MemOperand FieldMemOperand(Register object, int offset) { | 41 static inline MemOperand FieldMemOperand(Register object, int offset) { |
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305 // Compare double values and then load the fpscr flags to a register. | 304 // Compare double values and then load the fpscr flags to a register. |
306 void VFPCompareAndLoadFlags(const DwVfpRegister src1, | 305 void VFPCompareAndLoadFlags(const DwVfpRegister src1, |
307 const DwVfpRegister src2, | 306 const DwVfpRegister src2, |
308 const Register fpscr_flags, | 307 const Register fpscr_flags, |
309 const Condition cond = al); | 308 const Condition cond = al); |
310 void VFPCompareAndLoadFlags(const DwVfpRegister src1, | 309 void VFPCompareAndLoadFlags(const DwVfpRegister src1, |
311 const double src2, | 310 const double src2, |
312 const Register fpscr_flags, | 311 const Register fpscr_flags, |
313 const Condition cond = al); | 312 const Condition cond = al); |
314 | 313 |
| 314 |
| 315 // --------------------------------------------------------------------------- |
| 316 // Activation frames |
| 317 |
| 318 void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); } |
| 319 void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); } |
| 320 |
| 321 void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); } |
| 322 void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); } |
| 323 |
315 // Enter exit frame. | 324 // Enter exit frame. |
316 // stack_space - extra stack space, used for alignment before call to C. | 325 // stack_space - extra stack space, used for alignment before call to C. |
317 void EnterExitFrame(bool save_doubles, int stack_space = 0); | 326 void EnterExitFrame(bool save_doubles, int stack_space = 0); |
318 | 327 |
319 // Leave the current exit frame. Expects the return value in r0. | 328 // Leave the current exit frame. Expects the return value in r0. |
320 // Expect the number of values, pushed prior to the exit frame, to | 329 // Expect the number of values, pushed prior to the exit frame, to |
321 // remove in a register (or no_reg, if there is nothing to remove). | 330 // remove in a register (or no_reg, if there is nothing to remove). |
322 void LeaveExitFrame(bool save_doubles, Register argument_count); | 331 void LeaveExitFrame(bool save_doubles, Register argument_count); |
323 | 332 |
324 // Get the actual activation frame alignment for target environment. | 333 // Get the actual activation frame alignment for target environment. |
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855 void Check(Condition cond, const char* msg); | 864 void Check(Condition cond, const char* msg); |
856 | 865 |
857 // Print a message to stdout and abort execution. | 866 // Print a message to stdout and abort execution. |
858 void Abort(const char* msg); | 867 void Abort(const char* msg); |
859 | 868 |
860 // Verify restrictions about code generated in stubs. | 869 // Verify restrictions about code generated in stubs. |
861 void set_generating_stub(bool value) { generating_stub_ = value; } | 870 void set_generating_stub(bool value) { generating_stub_ = value; } |
862 bool generating_stub() { return generating_stub_; } | 871 bool generating_stub() { return generating_stub_; } |
863 void set_allow_stub_calls(bool value) { allow_stub_calls_ = value; } | 872 void set_allow_stub_calls(bool value) { allow_stub_calls_ = value; } |
864 bool allow_stub_calls() { return allow_stub_calls_; } | 873 bool allow_stub_calls() { return allow_stub_calls_; } |
865 void set_has_frame(bool value) { has_frame_ = value; } | |
866 bool has_frame() { return has_frame_; } | |
867 inline bool AllowThisStubCall(CodeStub* stub); | |
868 | 874 |
869 // EABI variant for double arguments in use. | 875 // EABI variant for double arguments in use. |
870 bool use_eabi_hardfloat() { | 876 bool use_eabi_hardfloat() { |
871 #if USE_EABI_HARDFLOAT | 877 #if USE_EABI_HARDFLOAT |
872 return true; | 878 return true; |
873 #else | 879 #else |
874 return false; | 880 return false; |
875 #endif | 881 #endif |
876 } | 882 } |
877 | 883 |
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1004 | 1010 |
1005 void ClampUint8(Register output_reg, Register input_reg); | 1011 void ClampUint8(Register output_reg, Register input_reg); |
1006 | 1012 |
1007 void ClampDoubleToUint8(Register result_reg, | 1013 void ClampDoubleToUint8(Register result_reg, |
1008 DoubleRegister input_reg, | 1014 DoubleRegister input_reg, |
1009 DoubleRegister temp_double_reg); | 1015 DoubleRegister temp_double_reg); |
1010 | 1016 |
1011 | 1017 |
1012 void LoadInstanceDescriptors(Register map, Register descriptors); | 1018 void LoadInstanceDescriptors(Register map, Register descriptors); |
1013 | 1019 |
1014 // Activation support. | |
1015 void EnterFrame(StackFrame::Type type); | |
1016 void LeaveFrame(StackFrame::Type type); | |
1017 | |
1018 private: | 1020 private: |
1019 void CallCFunctionHelper(Register function, | 1021 void CallCFunctionHelper(Register function, |
1020 ExternalReference function_reference, | 1022 ExternalReference function_reference, |
1021 Register scratch, | 1023 Register scratch, |
1022 int num_reg_arguments, | 1024 int num_reg_arguments, |
1023 int num_double_arguments); | 1025 int num_double_arguments); |
1024 | 1026 |
1025 void Jump(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); | 1027 void Jump(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); |
1026 int CallSize(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); | 1028 int CallSize(intptr_t target, RelocInfo::Mode rmode, Condition cond = al); |
1027 void Call(intptr_t target, | 1029 void Call(intptr_t target, |
1028 RelocInfo::Mode rmode, | 1030 RelocInfo::Mode rmode, |
1029 Condition cond = al); | 1031 Condition cond = al); |
1030 | 1032 |
1031 // Helper functions for generating invokes. | 1033 // Helper functions for generating invokes. |
1032 void InvokePrologue(const ParameterCount& expected, | 1034 void InvokePrologue(const ParameterCount& expected, |
1033 const ParameterCount& actual, | 1035 const ParameterCount& actual, |
1034 Handle<Code> code_constant, | 1036 Handle<Code> code_constant, |
1035 Register code_reg, | 1037 Register code_reg, |
1036 Label* done, | 1038 Label* done, |
1037 InvokeFlag flag, | 1039 InvokeFlag flag, |
1038 const CallWrapper& call_wrapper, | 1040 const CallWrapper& call_wrapper, |
1039 CallKind call_kind); | 1041 CallKind call_kind); |
1040 | 1042 |
| 1043 // Activation support. |
| 1044 void EnterFrame(StackFrame::Type type); |
| 1045 void LeaveFrame(StackFrame::Type type); |
| 1046 |
1041 void InitializeNewString(Register string, | 1047 void InitializeNewString(Register string, |
1042 Register length, | 1048 Register length, |
1043 Heap::RootListIndex map_index, | 1049 Heap::RootListIndex map_index, |
1044 Register scratch1, | 1050 Register scratch1, |
1045 Register scratch2); | 1051 Register scratch2); |
1046 | 1052 |
1047 // Compute memory operands for safepoint stack slots. | 1053 // Compute memory operands for safepoint stack slots. |
1048 static int SafepointRegisterStackIndex(int reg_code); | 1054 static int SafepointRegisterStackIndex(int reg_code); |
1049 MemOperand SafepointRegisterSlot(Register reg); | 1055 MemOperand SafepointRegisterSlot(Register reg); |
1050 MemOperand SafepointRegistersAndDoublesSlot(Register reg); | 1056 MemOperand SafepointRegistersAndDoublesSlot(Register reg); |
1051 | 1057 |
1052 bool generating_stub_; | 1058 bool generating_stub_; |
1053 bool allow_stub_calls_; | 1059 bool allow_stub_calls_; |
1054 bool has_frame_; | |
1055 // This handle will be patched with the code object on installation. | 1060 // This handle will be patched with the code object on installation. |
1056 Handle<Object> code_object_; | 1061 Handle<Object> code_object_; |
1057 | 1062 |
1058 // Needs access to SafepointRegisterStackIndex for optimized frame | 1063 // Needs access to SafepointRegisterStackIndex for optimized frame |
1059 // traversal. | 1064 // traversal. |
1060 friend class OptimizedFrame; | 1065 friend class OptimizedFrame; |
1061 }; | 1066 }; |
1062 | 1067 |
1063 | 1068 |
1064 #ifdef ENABLE_DEBUGGER_SUPPORT | 1069 #ifdef ENABLE_DEBUGGER_SUPPORT |
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1113 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 1118 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
1114 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 1119 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
1115 #else | 1120 #else |
1116 #define ACCESS_MASM(masm) masm-> | 1121 #define ACCESS_MASM(masm) masm-> |
1117 #endif | 1122 #endif |
1118 | 1123 |
1119 | 1124 |
1120 } } // namespace v8::internal | 1125 } } // namespace v8::internal |
1121 | 1126 |
1122 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 1127 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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