24 */
25
26 #ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
27 #define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
33 // n.b. if we are notifying entry/exit to the simulator then the call
34 // stub does a notify at normal return placing
35 // call_stub_return_address one instruction beyond the notify. the
36 // latter address is sued by the stack unwind code when doign an
37 // exception return.
38 static bool returns_to_call_stub(address return_pc) {
39 return return_pc == _call_stub_return_address + (NotifySimulator ? -4 : 0);
40 }
41
42 enum platform_dependent_constants {
43 code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
44 code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
45 };
46
47 class aarch64 {
48 friend class StubGenerator;
49
50 private:
51 static address _shenandoah_wb;
52
53 static address _get_previous_fp_entry;
54 static address _get_previous_sp_entry;
55
56 static address _f2i_fixup;
57 static address _f2l_fixup;
58 static address _d2i_fixup;
59 static address _d2l_fixup;
60
61 static address _float_sign_mask;
62 static address _float_sign_flip;
63 static address _double_sign_mask;
64 static address _double_sign_flip;
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24 */
25
26 #ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
27 #define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
33 // n.b. if we are notifying entry/exit to the simulator then the call
34 // stub does a notify at normal return placing
35 // call_stub_return_address one instruction beyond the notify. the
36 // latter address is sued by the stack unwind code when doign an
37 // exception return.
38 static bool returns_to_call_stub(address return_pc) {
39 return return_pc == _call_stub_return_address + (NotifySimulator ? -4 : 0);
40 }
41
42 enum platform_dependent_constants {
43 code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
44 code_size2 = 23000 // simply increase if too small (assembler will crash if too small)
45 };
46
47 class aarch64 {
48 friend class StubGenerator;
49
50 private:
51 static address _shenandoah_wb;
52
53 static address _get_previous_fp_entry;
54 static address _get_previous_sp_entry;
55
56 static address _f2i_fixup;
57 static address _f2l_fixup;
58 static address _d2i_fixup;
59 static address _d2l_fixup;
60
61 static address _float_sign_mask;
62 static address _float_sign_flip;
63 static address _double_sign_mask;
64 static address _double_sign_flip;
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