frame_ppc.inline.hpp revision 13249:a2753984d2c1 
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25
26#ifndef CPU_PPC_VM_FRAME_PPC_INLINE_HPP
27#define CPU_PPC_VM_FRAME_PPC_INLINE_HPP
28
29#include "code/codeCache.hpp"
30#include "code/vmreg.inline.hpp"
31#include "utilities/align.hpp"
32
33// Inline functions for ppc64 frames:
34
35// Find codeblob and set deopt_state.
36inline void frame::find_codeblob_and_set_pc_and_deopt_state(address pc) {
37  assert(pc != NULL, "precondition: must have PC");
38
39  _cb = CodeCache::find_blob(pc);
40  _pc = pc;   // Must be set for get_deopt_original_pc()
41
42  _fp = (intptr_t*)own_abi()->callers_sp;
43
44  address original_pc = CompiledMethod::get_deopt_original_pc(this);
45  if (original_pc != NULL) {
46    _pc = original_pc;
47    _deopt_state = is_deoptimized;
48  } else {
49    _deopt_state = not_deoptimized;
50  }
51
52  assert(((uint64_t)_sp & 0xf) == 0, "SP must be 16-byte aligned");
53}
54
55// Constructors
56
57// Initialize all fields, _unextended_sp will be adjusted in find_codeblob_and_set_pc_and_deopt_state.
58inline frame::frame() : _sp(NULL), _unextended_sp(NULL), _fp(NULL), _cb(NULL), _pc(NULL), _deopt_state(unknown) {}
59
60inline frame::frame(intptr_t* sp) : _sp(sp), _unextended_sp(sp) {
61  find_codeblob_and_set_pc_and_deopt_state((address)own_abi()->lr); // also sets _fp and adjusts _unextended_sp
62}
63
64inline frame::frame(intptr_t* sp, address pc) : _sp(sp), _unextended_sp(sp) {
65  find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
66}
67
68inline frame::frame(intptr_t* sp, address pc, intptr_t* unextended_sp) : _sp(sp), _unextended_sp(unextended_sp) {
69  find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
70}
71
72// Accessors
73
74// Return unique id for this frame. The id must have a value where we
75// can distinguish identity and younger/older relationship. NULL
76// represents an invalid (incomparable) frame.
77inline intptr_t* frame::id(void) const {
78  // Use _fp. _sp or _unextended_sp wouldn't be correct due to resizing.
79  return _fp;
80}
81
82// Return true if this frame is older (less recent activation) than
83// the frame represented by id.
84inline bool frame::is_older(intptr_t* id) const {
85   assert(this->id() != NULL && id != NULL, "NULL frame id");
86   // Stack grows towards smaller addresses on ppc64.
87   return this->id() > id;
88}
89
90inline int frame::frame_size(RegisterMap* map) const {
91  // Stack grows towards smaller addresses on PPC64: sender is at a higher address.
92  return sender_sp() - sp();
93}
94
95// Return the frame's stack pointer before it has been extended by a
96// c2i adapter. This is needed by deoptimization for ignoring c2i adapter
97// frames.
98inline intptr_t* frame::unextended_sp() const {
99  return _unextended_sp;
100}
101
102// All frames have this field.
103inline address frame::sender_pc() const {
104  return (address)callers_abi()->lr;
105}
106inline address* frame::sender_pc_addr() const {
107  return (address*)&(callers_abi()->lr);
108}
109
110// All frames have this field.
111inline intptr_t* frame::sender_sp() const {
112  return (intptr_t*)callers_abi();
113}
114
115// All frames have this field.
116inline intptr_t* frame::link() const {
117  return (intptr_t*)callers_abi()->callers_sp;
118}
119
120inline intptr_t* frame::real_fp() const {
121  return fp();
122}
123
124// Template Interpreter frame value accessors.
125
126inline frame::ijava_state* frame::get_ijava_state() const {
127  return (ijava_state*) ((uintptr_t)fp() - ijava_state_size);
128}
129
130inline intptr_t** frame::interpreter_frame_locals_addr() const {
131  return (intptr_t**) &(get_ijava_state()->locals);
132}
133inline intptr_t* frame::interpreter_frame_bcp_addr() const {
134  return (intptr_t*) &(get_ijava_state()->bcp);
135}
136inline intptr_t* frame::interpreter_frame_mdp_addr() const {
137  return (intptr_t*) &(get_ijava_state()->mdx);
138}
139// Pointer beyond the "oldest/deepest" BasicObjectLock on stack.
140inline BasicObjectLock* frame::interpreter_frame_monitor_end() const {
141  return (BasicObjectLock *) get_ijava_state()->monitors;
142}
143
144inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
145  return (BasicObjectLock *) get_ijava_state();
146}
147
148// Return register stack slot addr at which currently interpreted method is found.
149inline Method** frame::interpreter_frame_method_addr() const {
150  return (Method**) &(get_ijava_state()->method);
151}
152
153inline oop* frame::interpreter_frame_mirror_addr() const {
154  return (oop*) &(get_ijava_state()->mirror);
155}
156
157inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const {
158  return (ConstantPoolCache**) &(get_ijava_state()->cpoolCache);
159}
160inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
161  return (ConstantPoolCache**) &(get_ijava_state()->cpoolCache);
162}
163
164inline oop* frame::interpreter_frame_temp_oop_addr() const {
165  return (oop *) &(get_ijava_state()->oop_tmp);
166}
167inline intptr_t* frame::interpreter_frame_esp() const {
168  return (intptr_t*) get_ijava_state()->esp;
169}
170
171// Convenient setters
172inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* end)    { get_ijava_state()->monitors = (intptr_t) end;}
173inline void frame::interpreter_frame_set_cpcache(ConstantPoolCache* cp)       { *frame::interpreter_frame_cpoolcache_addr() = cp; }
174inline void frame::interpreter_frame_set_esp(intptr_t* esp)                   { get_ijava_state()->esp = (intptr_t) esp; }
175inline void frame::interpreter_frame_set_top_frame_sp(intptr_t* top_frame_sp) { get_ijava_state()->top_frame_sp = (intptr_t) top_frame_sp; }
176inline void frame::interpreter_frame_set_sender_sp(intptr_t* sender_sp)       { get_ijava_state()->sender_sp = (intptr_t) sender_sp; }
177
178inline intptr_t* frame::interpreter_frame_expression_stack() const {
179  return (intptr_t*)interpreter_frame_monitor_end() - 1;
180}
181
182inline jint frame::interpreter_frame_expression_stack_direction() {
183  return -1;
184}
185
186// top of expression stack
187inline intptr_t* frame::interpreter_frame_tos_address() const {
188  return ((intptr_t*) get_ijava_state()->esp) + Interpreter::stackElementWords;
189}
190
191inline intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
192  return &interpreter_frame_tos_address()[offset];
193}
194
195inline int frame::interpreter_frame_monitor_size() {
196  // Number of stack slots for a monitor.
197  return align_up(BasicObjectLock::size(),  // number of stack slots
198                  WordsPerLong);            // number of stack slots for a Java long
199}
200
201inline int frame::interpreter_frame_monitor_size_in_bytes() {
202  return frame::interpreter_frame_monitor_size() * wordSize;
203}
204
205// entry frames
206
207inline intptr_t* frame::entry_frame_argument_at(int offset) const {
208  // Since an entry frame always calls the interpreter first, the
209  // parameters are on the stack and relative to known register in the
210  // entry frame.
211  intptr_t* tos = (intptr_t*)get_entry_frame_locals()->arguments_tos_address;
212  return &tos[offset + 1]; // prepushed tos
213}
214
215inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {
216  return (JavaCallWrapper**)&get_entry_frame_locals()->call_wrapper_address;
217}
218
219inline oop frame::saved_oop_result(RegisterMap* map) const {
220  return *((oop*)map->location(R3->as_VMReg()));
221}
222
223inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
224  *((oop*)map->location(R3->as_VMReg())) = obj;
225}
226
227#endif // CPU_PPC_VM_FRAME_PPC_INLINE_HPP
228