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src/cpu/mips/vm/frame_mips.hpp@d885f8d65c58
src/cpu/mips/vm/frame_mips.hpp
Tue, 26 Jul 2016 17:06:17 +0800
- author
- fujie
- date
- Tue, 26 Jul 2016 17:06:17 +0800
- changeset 41
- d885f8d65c58
- parent 1
- 2d8a650513c2
- child 6880
- 52ea28d233d2
- permissions
- -rw-r--r--
Add multiply word to GPR instruction (mul) in MIPS assembler.
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_HPP
27 #define CPU_MIPS_VM_FRAME_MIPS_HPP
29 #include "runtime/synchronizer.hpp"
30 #include "utilities/top.hpp"
32 // A frame represents a physical stack frame (an activation). Frames can be
33 // C or Java frames, and the Java frames can be interpreted or compiled.
34 // In contrast, vframes represent source-level activations, so that one physical frame
35 // can correspond to multiple source level frames because of inlining.
36 // A frame is comprised of {pc, fp, sp}
37 // ------------------------------ Asm interpreter ----------------------------------------
38 // Layout of asm interpreter frame:
39 // [expression stack ] * <- sp
40 // [monitors ] \
41 // ... | monitor block size
42 // [monitors ] /
43 // [monitor block size ]
44 // [byte code index/pointr] = bcx() bcx_offset
45 // [pointer to locals ] = locals() locals_offset
46 // [constant pool cache ] = cache() cache_offset
47 // [methodData ] = mdp() mdx_offset
48 // [methodOop ] = method() method_offset
49 // [last sp ] = last_sp() last_sp_offset
50 // [old stack pointer ] (sender_sp) sender_sp_offset
51 // [old frame pointer ] <- fp = link()
52 // [return pc ]
53 // [oop temp ] (only for native calls)
54 // [locals and parameters ]
55 // <- sender sp
56 // ------------------------------ Asm interpreter ----------------------------------------
58 // ------------------------------ C++ interpreter ----------------------------------------
59 //
60 // Layout of C++ interpreter frame: (While executing in BytecodeInterpreter::run)
61 //
62 // <- SP (current esp/rsp)
63 // [local variables ] BytecodeInterpreter::run local variables
64 // ... BytecodeInterpreter::run local variables
65 // [local variables ] BytecodeInterpreter::run local variables
66 // [old frame pointer ] fp [ BytecodeInterpreter::run's ebp/rbp ]
67 // [return pc ] (return to frame manager)
68 // [interpreter_state* ] (arg to BytecodeInterpreter::run) --------------
69 // [expression stack ] <- last_Java_sp |
70 // [... ] * <- interpreter_state.stack |
71 // [expression stack ] * <- interpreter_state.stack_base |
72 // [monitors ] \ |
73 // ... | monitor block size |
74 // [monitors ] / <- interpreter_state.monitor_base |
75 // [struct interpretState ] <-----------------------------------------|
76 // [return pc ] (return to callee of frame manager [1]
77 // [locals and parameters ]
78 // <- sender sp
80 // [1] When the c++ interpreter calls a new method it returns to the frame
81 // manager which allocates a new frame on the stack. In that case there
82 // is no real callee of this newly allocated frame. The frame manager is
83 // aware of the additional frame(s) and will pop them as nested calls
84 // complete. Howevers tTo make it look good in the debugger the frame
85 // manager actually installs a dummy pc pointing to RecursiveInterpreterActivation
86 // with a fake interpreter_state* parameter to make it easy to debug
87 // nested calls.
89 // Note that contrary to the layout for the assembly interpreter the
90 // expression stack allocated for the C++ interpreter is full sized.
91 // However this is not as bad as it seems as the interpreter frame_manager
92 // will truncate the unused space on succesive method calls.
93 //
94 // ------------------------------ C++ interpreter ----------------------------------------
96 // Layout of interpreter frame:
97 //
98 // [ monitor entry ] <--- sp
99 // ...
100 // [ monitor entry ]
101 // -7 [ monitor block top ] ( the top monitor entry )
102 // -6 [ byte code pointer ] (if native, bcp = 0)
103 // -5 [ constant pool cache ]
104 // -4 [ methodData ] mdx_offset(not core only)
105 // -3 [ methodOop ]
106 // -2 [ locals offset ]
107 // -1 [ sender's sp ]
108 // 0 [ sender's fp ] <--fp
109 // 1 [ return address ]
110 // 2 [ oop temp offset ] (only for native calls)
111 // 3 [ result handler offset ] (only for native calls)
112 // 4 [ result type info ] (only for native calls)
113 // [ local var m-1 ]
114 // ...
115 // [ local var 0 ]
116 // [ argumnet word n-1 ] <--- ( sender's sp )
117 // ...
118 // [ argument word 0 ] <--- S7
120 public:
121 enum {
122 pc_return_offset = 0,
123 // All frames
124 link_offset = 0,
125 return_addr_offset = 1,
126 // non-interpreter frames
127 sender_sp_offset = 2,
129 #ifndef CC_INTERP
131 // Interpreter frames
132 interpreter_frame_return_addr_offset = 1,
133 interpreter_frame_result_handler_offset = 3, // for native calls only
134 interpreter_frame_oop_temp_offset = 2, // for native calls only
136 interpreter_frame_sender_fp_offset = 0,
137 interpreter_frame_sender_sp_offset = -1,
138 // outgoing sp before a call to an invoked method
139 interpreter_frame_last_sp_offset = interpreter_frame_sender_sp_offset - 1,
140 interpreter_frame_locals_offset = interpreter_frame_last_sp_offset - 1,
141 interpreter_frame_method_offset = interpreter_frame_locals_offset - 1,
142 interpreter_frame_mdx_offset = interpreter_frame_method_offset - 1,
143 interpreter_frame_cache_offset = interpreter_frame_mdx_offset - 1,
144 // interpreter_frame_locals_offset = interpreter_frame_cache_offset - 1,
145 interpreter_frame_bcx_offset = interpreter_frame_cache_offset - 1,
146 interpreter_frame_initial_sp_offset = interpreter_frame_bcx_offset - 1,
148 interpreter_frame_monitor_block_top_offset = interpreter_frame_initial_sp_offset,
149 interpreter_frame_monitor_block_bottom_offset = interpreter_frame_initial_sp_offset,
151 #endif // CC_INTERP
153 // Entry frames
154 #ifdef _LP64
155 entry_frame_call_wrapper_offset = -9,
156 #else
157 entry_frame_call_wrapper_offset = 2,
158 #endif // AMD64
160 // Native frames
162 native_frame_initial_param_offset = 2
164 };
166 intptr_t ptr_at(int offset) const {
167 return *ptr_at_addr(offset);
168 }
170 void ptr_at_put(int offset, intptr_t value) {
171 *ptr_at_addr(offset) = value;
172 }
174 private:
175 // an additional field beyond _sp and _pc:
176 intptr_t* _fp; // frame pointer
177 // The interpreter and adapters will extend the frame of the caller.
178 // Since oopMaps are based on the sp of the caller before extension
179 // we need to know that value. However in order to compute the address
180 // of the return address we need the real "raw" sp. Since sparc already
181 // uses sp() to mean "raw" sp and unextended_sp() to mean the caller's
182 // original sp we use that convention.
184 intptr_t* _unextended_sp;
185 void adjust_unextended_sp();
187 intptr_t* ptr_at_addr(int offset) const {
188 return (intptr_t*) addr_at(offset);
189 }
190 #ifdef ASSERT
191 // Used in frame::sender_for_{interpreter,compiled}_frame
192 static void verify_deopt_original_pc( nmethod* nm, intptr_t* unextended_sp, bool is_method_handle_return = false);
193 static void verify_deopt_mh_original_pc(nmethod* nm, intptr_t* unextended_sp) {
194 verify_deopt_original_pc(nm, unextended_sp, true);
195 }
196 #endif
198 public:
199 // Constructors
201 frame(intptr_t* sp, intptr_t* fp, address pc);
203 frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc);
205 frame(intptr_t* sp, intptr_t* fp);
207 // accessors for the instance variables
208 intptr_t* fp() const { return _fp; }
210 inline address* sender_pc_addr() const;
212 // return address of param, zero origin index.
213 inline address* native_param_addr(int idx) const;
215 // expression stack tos if we are nested in a java call
216 intptr_t* interpreter_frame_last_sp() const;
218 #ifndef CC_INTERP
219 // deoptimization support
220 void interpreter_frame_set_last_sp(intptr_t* sp);
221 #endif // CC_INTERP
223 #ifdef CC_INTERP
224 inline interpreterState get_interpreterState() const;
225 #endif // CC_INTERP
226 #endif // CPU_MIPS_VM_FRAME_MIPS_HPP
