26 #ifndef OS_CPU_LINUX_AARCH64_VM_THREAD_LINUX_AARCH64_HPP
27 #define OS_CPU_LINUX_AARCH64_VM_THREAD_LINUX_AARCH64_HPP
28
29 private:
30 #ifdef ASSERT
31 // spill stack holds N callee-save registers at each Java call and
32 // grows downwards towards limit
33 // we need limit to check we have space for a spill and base so we
34 // can identify all live spill frames at GC (eventually)
35 address _spill_stack;
36 address _spill_stack_base;
37 address _spill_stack_limit;
38 #endif // ASSERT
39
40 void pd_initialize() {
41 _anchor.clear();
42 }
43
44 frame pd_last_frame() {
45 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
46 if (_anchor.last_Java_pc() != NULL) {
47 return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
48 } else {
49 // This will pick up pc from sp
50 return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
51 }
52 }
53
54 public:
55 // Mutators are highly dangerous....
56 intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); }
57 void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); }
58
59 void set_base_of_stack_pointer(intptr_t* base_sp) {
60 }
61
62 static ByteSize last_Java_fp_offset() {
63 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
64 }
65
66 intptr_t* base_of_stack_pointer() {
67 return NULL;
68 }
69 void record_base_of_stack_pointer() {
70 }
71
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26 #ifndef OS_CPU_LINUX_AARCH64_VM_THREAD_LINUX_AARCH64_HPP
27 #define OS_CPU_LINUX_AARCH64_VM_THREAD_LINUX_AARCH64_HPP
28
29 private:
30 #ifdef ASSERT
31 // spill stack holds N callee-save registers at each Java call and
32 // grows downwards towards limit
33 // we need limit to check we have space for a spill and base so we
34 // can identify all live spill frames at GC (eventually)
35 address _spill_stack;
36 address _spill_stack_base;
37 address _spill_stack_limit;
38 #endif // ASSERT
39
40 void pd_initialize() {
41 _anchor.clear();
42 }
43
44 frame pd_last_frame() {
45 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
46 return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
47 }
48
49 public:
50 // Mutators are highly dangerous....
51 intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); }
52 void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); }
53
54 void set_base_of_stack_pointer(intptr_t* base_sp) {
55 }
56
57 static ByteSize last_Java_fp_offset() {
58 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
59 }
60
61 intptr_t* base_of_stack_pointer() {
62 return NULL;
63 }
64 void record_base_of_stack_pointer() {
65 }
66
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