Tue, 31 May 2016 00:22:06 -0400
[Code Reorganization] load_two_bytes_from_at_bcp -> get_2_byte_integer_at_bcp
remove useless MacroAssembler::store_two_byts_to_at_bcp
change MacroAssembler::load_two_bytes_from_at_bcp to InterpreterMacroAssembler::get_2_byte_integer_at_bcp
change MacroAssembler::get_4_byte_integer_at_bcp to InterpreterMacroAssembler::get_4_byte_integer_at_bcp
1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
26 #ifndef CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP
27 #define CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP
29 #include "code/codeCache.hpp"
31 // Inline functions for Loongson frames:
33 // Constructors:
35 inline frame::frame() {
36 _pc = NULL;
37 _sp = NULL;
38 _unextended_sp = NULL;
39 _fp = NULL;
40 _cb = NULL;
41 _deopt_state = unknown;
42 }
44 inline frame:: frame(intptr_t* sp, intptr_t* fp, address pc) {
45 _sp = sp;
46 _unextended_sp = sp;
47 _fp = fp;
48 _pc = pc;
49 assert(pc != NULL, "no pc?");
50 _cb = CodeCache::find_blob(pc);
51 adjust_unextended_sp();
52 address original_pc = nmethod::get_deopt_original_pc(this);
53 if (original_pc != NULL) {
54 _pc = original_pc;
55 _deopt_state = is_deoptimized;
56 } else {
57 _deopt_state = not_deoptimized;
58 }
59 }
61 inline frame:: frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) {
62 _sp = sp;
63 _unextended_sp = unextended_sp;
64 _fp = fp;
65 _pc = pc;
66 assert(pc != NULL, "no pc?");
67 _cb = CodeCache::find_blob(pc);
68 adjust_unextended_sp();
69 address original_pc = nmethod::get_deopt_original_pc(this);
70 if (original_pc != NULL) {
71 _pc = original_pc;
72 _deopt_state = is_deoptimized;
73 } else {
74 _deopt_state = not_deoptimized;
75 }
76 }
78 inline frame::frame(intptr_t* sp, intptr_t* fp) {
79 _sp = sp;
80 _unextended_sp = sp;
81 _fp = fp;
82 _pc = (address)(sp[-1]);
84 // Here's a sticky one. This constructor can be called via AsyncGetCallTrace
85 // when last_Java_sp is non-null but the pc fetched is junk. If we are truly
86 // unlucky the junk value could be to a zombied method and we'll die on the
87 // find_blob call. This is also why we can have no asserts on the validity
88 // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler
89 // -> pd_last_frame should use a specialized version of pd_last_frame which could
90 // call a specilaized frame constructor instead of this one.
91 // Then we could use the assert below. However this assert is of somewhat dubious
92 // value.
93 // assert(_pc != NULL, "no pc?");
95 _cb = CodeCache::find_blob(_pc);
96 adjust_unextended_sp();
97 address original_pc = nmethod::get_deopt_original_pc(this);
98 if (original_pc != NULL) {
99 _pc = original_pc;
100 _deopt_state = is_deoptimized;
101 } else {
102 _deopt_state = not_deoptimized;
103 }
104 }
106 // Accessors
108 inline bool frame::equal(frame other) const {
109 bool ret = sp() == other.sp()
110 && unextended_sp() == other.unextended_sp()
111 && fp() == other.fp()
112 && pc() == other.pc();
113 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction");
114 return ret;
115 }
117 // Return unique id for this frame. The id must have a value where we can distinguish
118 // identity and younger/older relationship. NULL represents an invalid (incomparable)
119 // frame.
120 inline intptr_t* frame::id(void) const { return unextended_sp(); }
122 // Relationals on frames based
123 // Return true if the frame is younger (more recent activation) than the frame represented by id
124 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
125 return this->id() < id ; }
127 // Return true if the frame is older (less recent activation) than the frame represented by id
128 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
129 return this->id() > id ; }
133 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
134 inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; }
137 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; }
139 // Return address:
141 inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); }
142 inline address frame::sender_pc() const { return *sender_pc_addr(); }
144 // return address of param, zero origin index.
145 inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); }
147 #ifdef CC_INTERP
149 inline interpreterState frame::get_interpreterState() const {
150 return ((interpreterState)addr_at( -sizeof(BytecodeInterpreter)/wordSize ));
151 }
153 inline intptr_t* frame::sender_sp() const {
154 // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames?
155 if (is_interpreted_frame()) {
156 assert(false, "should never happen");
157 return get_interpreterState()->sender_sp();
158 } else {
159 return addr_at(sender_sp_offset);
160 }
161 }
163 inline intptr_t** frame::interpreter_frame_locals_addr() const {
164 assert(is_interpreted_frame(), "must be interpreted");
165 return &(get_interpreterState()->_locals);
166 }
168 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
169 assert(is_interpreted_frame(), "must be interpreted");
170 return (intptr_t*) &(get_interpreterState()->_bcp);
171 }
174 // Constant pool cache
176 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
177 assert(is_interpreted_frame(), "must be interpreted");
178 return &(get_interpreterState()->_constants);
179 }
181 // Method
183 inline Method** frame::interpreter_frame_method_addr() const {
184 assert(is_interpreted_frame(), "must be interpreted");
185 return &(get_interpreterState()->_method);
186 }
188 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
189 assert(is_interpreted_frame(), "must be interpreted");
190 return (intptr_t*) &(get_interpreterState()->_mdx);
191 }
193 // top of expression stack
194 inline intptr_t* frame::interpreter_frame_tos_address() const {
195 assert(is_interpreted_frame(), "wrong frame type");
196 return get_interpreterState()->_stack + 1;
197 }
199 #else /* asm interpreter */
200 inline intptr_t* frame::sender_sp() const { return addr_at( sender_sp_offset); }
202 inline intptr_t** frame::interpreter_frame_locals_addr() const {
203 return (intptr_t**)addr_at(interpreter_frame_locals_offset);
204 }
206 inline intptr_t* frame::interpreter_frame_last_sp() const {
207 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset);
208 }
210 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
211 return (intptr_t*)addr_at(interpreter_frame_bcx_offset);
212 }
215 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
216 return (intptr_t*)addr_at(interpreter_frame_mdx_offset);
217 }
221 // Constant pool cache
223 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
224 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset);
225 }
227 // Method
229 inline Method** frame::interpreter_frame_method_addr() const {
230 return (Method**)addr_at(interpreter_frame_method_offset);
231 }
233 // top of expression stack
234 inline intptr_t* frame::interpreter_frame_tos_address() const {
235 intptr_t* last_sp = interpreter_frame_last_sp();
236 if (last_sp == NULL ) {
237 return sp();
238 } else {
239 // sp() may have been extended by an adapter
240 assert(last_sp <= (intptr_t*)interpreter_frame_monitor_end(), "bad tos");
241 return last_sp;
242 }
243 }
245 inline oop* frame::interpreter_frame_temp_oop_addr() const {
246 return (oop *)(fp() + interpreter_frame_oop_temp_offset);
247 }
249 #endif /* CC_INTERP */
251 inline int frame::pd_oop_map_offset_adjustment() const {
252 return 0;
253 }
255 inline int frame::interpreter_frame_monitor_size() {
256 return BasicObjectLock::size();
257 }
260 // expression stack
261 // (the max_stack arguments are used by the GC; see class FrameClosure)
263 inline intptr_t* frame::interpreter_frame_expression_stack() const {
264 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();
265 return monitor_end-1;
266 }
269 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
272 // Entry frames
273 /*
274 inline JavaCallWrapper* frame::entry_frame_call_wrapper() const {
275 return (JavaCallWrapper*)at(entry_frame_call_wrapper_offset);
276 }
277 */
279 // Entry frames
281 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { // Fu: 20130814
282 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset);
283 }
285 // Compiled frames
287 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
288 return (nof_args - local_index + (local_index < nof_args ? 1: -1));
289 }
291 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) {
292 return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors);
293 }
295 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) {
296 return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1);
297 }
299 inline bool frame::volatile_across_calls(Register reg) {
300 return true;
301 }
305 inline oop frame::saved_oop_result(RegisterMap* map) const {
306 return *((oop*) map->location(V0->as_VMReg()));
307 }
309 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
310 *((oop*) map->location(V0->as_VMReg())) = obj;
311 }
313 #endif // CPU_MIPS_VM_FRAME_MIPS_INLINE_HPP