24
25 #ifndef CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
26 #define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
27
28 // This file holds the platform specific parts of the StubRoutines
29 // definition. See stubRoutines.hpp for a description on how to
30 // extend it.
31
32
33 // So unfortunately c2 will call with a pc from a frame object
34 // (already adjusted) and a raw pc (unadjusted), so we need to check both.
35 // It didn't use to be like this before adapter removal.
36 static bool returns_to_call_stub(address return_pc) {
37 return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) ||
38 (return_pc == _call_stub_return_address );
39 }
40
41 enum /* platform_dependent_constants */ {
42 // %%%%%%%% May be able to shrink this a lot
43 code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
44 code_size2 = 24000 // simply increase if too small (assembler will crash if too small)
45 };
46
47 class Sparc {
48 friend class StubGenerator;
49
50 private:
51 static address _test_stop_entry;
52 static address _stop_subroutine_entry;
53 static address _flush_callers_register_windows_entry;
54
55 static address _partial_subtype_check;
56
57 public:
58 // test assembler stop routine by setting registers
59 static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); }
60
61 // a subroutine for debugging assembler code
62 static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; }
63
64 // flushes (all but current) register window
|
24
25 #ifndef CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
26 #define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP
27
28 // This file holds the platform specific parts of the StubRoutines
29 // definition. See stubRoutines.hpp for a description on how to
30 // extend it.
31
32
33 // So unfortunately c2 will call with a pc from a frame object
34 // (already adjusted) and a raw pc (unadjusted), so we need to check both.
35 // It didn't use to be like this before adapter removal.
36 static bool returns_to_call_stub(address return_pc) {
37 return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) ||
38 (return_pc == _call_stub_return_address );
39 }
40
41 enum /* platform_dependent_constants */ {
42 // %%%%%%%% May be able to shrink this a lot
43 code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
44 code_size2 = 27000 // simply increase if too small (assembler will crash if too small)
45 };
46
47 class Sparc {
48 friend class StubGenerator;
49
50 private:
51 static address _test_stop_entry;
52 static address _stop_subroutine_entry;
53 static address _flush_callers_register_windows_entry;
54
55 static address _partial_subtype_check;
56
57 public:
58 // test assembler stop routine by setting registers
59 static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); }
60
61 // a subroutine for debugging assembler code
62 static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; }
63
64 // flushes (all but current) register window
|