24 */
25
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
67 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
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24 */
25
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
46 public:
47 // Mutators are highly dangerous....
48 intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); }
49 void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); }
50
51 void set_base_of_stack_pointer(intptr_t* base_sp) {
52 }
53
54 static ByteSize last_Java_fp_offset() {
55 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
56 }
57
58 intptr_t* base_of_stack_pointer() {
59 return NULL;
60 }
61 void record_base_of_stack_pointer() {
62 }
63
64 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
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