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src/share/vm/runtime/vframeArray.hpp@c760f78e0a53 (annotated)

src/share/vm/runtime/vframeArray.hpp

Wed, 01 Dec 2010 15:04:06 +0100

author
stefank
date
Wed, 01 Dec 2010 15:04:06 +0100
changeset 2325
c760f78e0a53
parent 2314
f95d63e2154a
child 2901
3d2ab563047a
permissions
-rw-r--r--

7003125: precompiled.hpp is included when precompiled headers are not used
Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies.
Reviewed-by: coleenp, kvn

duke@435 1 /*
stefank@2314 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_RUNTIME_VFRAMEARRAY_HPP
stefank@2314 26 #define SHARE_VM_RUNTIME_VFRAMEARRAY_HPP
stefank@2314 27
stefank@2314 28 #include "oops/arrayOop.hpp"
stefank@2314 29 #include "runtime/deoptimization.hpp"
stefank@2314 30 #include "runtime/frame.inline.hpp"
stefank@2314 31 #include "runtime/monitorChunk.hpp"
stefank@2314 32 #include "utilities/growableArray.hpp"
stefank@2314 33
duke@435 34 // A vframeArray is an array used for momentarily storing off stack Java method activations
duke@435 35 // during deoptimization. Essentially it is an array of vframes where each vframe
duke@435 36 // data is stored off stack. This structure will never exist across a safepoint so
duke@435 37 // there is no need to gc any oops that are stored in the structure.
duke@435 38
duke@435 39
duke@435 40 class LocalsClosure;
duke@435 41 class ExpressionStackClosure;
duke@435 42 class MonitorStackClosure;
duke@435 43 class MonitorArrayElement;
duke@435 44 class StackValueCollection;
duke@435 45
duke@435 46 // A vframeArrayElement is an element of a vframeArray. Each element
duke@435 47 // represent an interpreter frame which will eventually be created.
duke@435 48
duke@435 49 class vframeArrayElement : public _ValueObj {
duke@435 50 private:
duke@435 51
duke@435 52 frame _frame; // the interpreter frame we will unpack into
cfang@1335 53 int _bci; // raw bci for this vframe
cfang@1335 54 bool _reexecute; // whether sould we reexecute this bytecode
duke@435 55 methodOop _method; // the method for this vframe
duke@435 56 MonitorChunk* _monitors; // active monitors for this vframe
duke@435 57 StackValueCollection* _locals;
duke@435 58 StackValueCollection* _expressions;
duke@435 59
duke@435 60 public:
duke@435 61
duke@435 62 frame* iframe(void) { return &_frame; }
duke@435 63
duke@435 64 int bci(void) const;
duke@435 65
duke@435 66 int raw_bci(void) const { return _bci; }
cfang@1335 67 bool should_reexecute(void) const { return _reexecute; }
duke@435 68
duke@435 69 methodOop method(void) const { return _method; }
duke@435 70
duke@435 71 MonitorChunk* monitors(void) const { return _monitors; }
duke@435 72
duke@435 73 void free_monitors(JavaThread* jt);
duke@435 74
duke@435 75 StackValueCollection* locals(void) const { return _locals; }
duke@435 76
duke@435 77 StackValueCollection* expressions(void) const { return _expressions; }
duke@435 78
duke@435 79 void fill_in(compiledVFrame* vf);
duke@435 80
duke@435 81 // Formerly part of deoptimizedVFrame
duke@435 82
duke@435 83
duke@435 84 // Returns the on stack word size for this frame
duke@435 85 // callee_parameters is the number of callee locals residing inside this frame
duke@435 86 int on_stack_size(int callee_parameters,
duke@435 87 int callee_locals,
duke@435 88 bool is_top_frame,
duke@435 89 int popframe_extra_stack_expression_els) const;
duke@435 90
duke@435 91 // Unpacks the element to skeletal interpreter frame
duke@435 92 void unpack_on_stack(int callee_parameters,
duke@435 93 int callee_locals,
duke@435 94 frame* caller,
duke@435 95 bool is_top_frame,
duke@435 96 int exec_mode);
duke@435 97
duke@435 98 #ifndef PRODUCT
duke@435 99 void print(outputStream* st);
duke@435 100 #endif /* PRODUCT */
duke@435 101 };
duke@435 102
duke@435 103 // this can be a ResourceObj if we don't save the last one...
duke@435 104 // but it does make debugging easier even if we can't look
duke@435 105 // at the data in each vframeElement
duke@435 106
duke@435 107 class vframeArray: public CHeapObj {
duke@435 108 private:
duke@435 109
duke@435 110
duke@435 111 // Here is what a vframeArray looks like in memory
duke@435 112
duke@435 113 /*
duke@435 114 fixed part
duke@435 115 description of the original frame
duke@435 116 _frames - number of vframes in this array
duke@435 117 adapter info
duke@435 118 callee register save area
duke@435 119 variable part
duke@435 120 vframeArrayElement [ 0 ]
duke@435 121 ...
duke@435 122 vframeArrayElement [_frames - 1]
duke@435 123
duke@435 124 */
duke@435 125
duke@435 126 JavaThread* _owner_thread;
duke@435 127 vframeArray* _next;
duke@435 128 frame _original; // the original frame of the deoptee
duke@435 129 frame _caller; // caller of root frame in vframeArray
duke@435 130 frame _sender;
duke@435 131
duke@435 132 Deoptimization::UnrollBlock* _unroll_block;
duke@435 133 int _frame_size;
duke@435 134
duke@435 135 int _frames; // number of javavframes in the array (does not count any adapter)
duke@435 136
duke@435 137 intptr_t _callee_registers[RegisterMap::reg_count];
duke@435 138 unsigned char _valid[RegisterMap::reg_count];
duke@435 139
duke@435 140 vframeArrayElement _elements[1]; // First variable section.
duke@435 141
duke@435 142 void fill_in_element(int index, compiledVFrame* vf);
duke@435 143
duke@435 144 bool is_location_valid(int i) const { return _valid[i] != 0; }
duke@435 145 void set_location_valid(int i, bool valid) { _valid[i] = valid; }
duke@435 146
duke@435 147 public:
duke@435 148
duke@435 149
duke@435 150 // Tells whether index is within bounds.
duke@435 151 bool is_within_bounds(int index) const { return 0 <= index && index < frames(); }
duke@435 152
duke@435 153 // Accessores for instance variable
duke@435 154 int frames() const { return _frames; }
duke@435 155
duke@435 156 static vframeArray* allocate(JavaThread* thread, int frame_size, GrowableArray<compiledVFrame*>* chunk,
duke@435 157 RegisterMap* reg_map, frame sender, frame caller, frame self);
duke@435 158
duke@435 159
duke@435 160 vframeArrayElement* element(int index) { assert(is_within_bounds(index), "Bad index"); return &_elements[index]; }
duke@435 161
duke@435 162 // Allocates a new vframe in the array and fills the array with vframe information in chunk
duke@435 163 void fill_in(JavaThread* thread, int frame_size, GrowableArray<compiledVFrame*>* chunk, const RegisterMap *reg_map);
duke@435 164
duke@435 165 // Returns the owner of this vframeArray
duke@435 166 JavaThread* owner_thread() const { return _owner_thread; }
duke@435 167
duke@435 168 // Accessors for next
duke@435 169 vframeArray* next() const { return _next; }
duke@435 170 void set_next(vframeArray* value) { _next = value; }
duke@435 171
duke@435 172 // Accessors for sp
duke@435 173 intptr_t* sp() const { return _original.sp(); }
duke@435 174
duke@435 175 intptr_t* unextended_sp() const { return _original.unextended_sp(); }
duke@435 176
duke@435 177 address original_pc() const { return _original.pc(); }
duke@435 178
duke@435 179 frame original() const { return _original; }
duke@435 180
duke@435 181 frame caller() const { return _caller; }
duke@435 182
duke@435 183 frame sender() const { return _sender; }
duke@435 184
duke@435 185 // Accessors for unroll block
duke@435 186 Deoptimization::UnrollBlock* unroll_block() const { return _unroll_block; }
duke@435 187 void set_unroll_block(Deoptimization::UnrollBlock* block) { _unroll_block = block; }
duke@435 188
duke@435 189 // Returns the size of the frame that got deoptimized
duke@435 190 int frame_size() const { return _frame_size; }
duke@435 191
duke@435 192 // Unpack the array on the stack passed in stack interval
duke@435 193 void unpack_to_stack(frame &unpack_frame, int exec_mode);
duke@435 194
duke@435 195 // Deallocates monitor chunks allocated during deoptimization.
duke@435 196 // This should be called when the array is not used anymore.
duke@435 197 void deallocate_monitor_chunks();
duke@435 198
duke@435 199
duke@435 200
duke@435 201 // Accessor for register map
duke@435 202 address register_location(int i) const;
duke@435 203
duke@435 204 void print_on_2(outputStream* st) PRODUCT_RETURN;
duke@435 205 void print_value_on(outputStream* st) const PRODUCT_RETURN;
duke@435 206
duke@435 207 #ifndef PRODUCT
duke@435 208 // Comparing
duke@435 209 bool structural_compare(JavaThread* thread, GrowableArray<compiledVFrame*>* chunk);
duke@435 210 #endif
duke@435 211
duke@435 212 };
stefank@2314 213
stefank@2314 214 #endif // SHARE_VM_RUNTIME_VFRAMEARRAY_HPP

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