1 /*
2 * Copyright (c) 2020, 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP
26 #define SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP
27
28 #include "memory/allocation.hpp"
29 #include "oops/oopsHierarchy.hpp"
30 #include "utilities/globalDefinitions.hpp"
31 #include "utilities/macros.hpp"
32
33 class CodeBlob;
34 class frame;
35 class ImmutableOopMap;
36 class RegisterMap;
37 class VMRegImpl;
38 typedef VMRegImpl* VMReg;
39
40 enum ChunkFrames { CompiledOnly, Mixed };
41
42 template <ChunkFrames frame_kind>
43 class StackChunkFrameStream : public StackObj {
44 private:
45 intptr_t* _end;
46 intptr_t* _sp;
47 intptr_t* _unextended_sp; // used only when mixed
48 CodeBlob* _cb;
49 mutable const ImmutableOopMap* _oopmap;
50 bool _callee_augmented;
51
52 #ifndef PRODUCT
53 stackChunkOop _chunk;
54 int _index;
55 #endif
56
57 #ifdef ASSERT
58 int _has_stub;
59 #endif
60
61 public:
62 StackChunkFrameStream() { NOT_PRODUCT(_chunk = nullptr; _index = -1;) DEBUG_ONLY(_has_stub = false;) }
63 inline StackChunkFrameStream(stackChunkOop chunk);
64 inline StackChunkFrameStream(stackChunkOop chunk, const frame& f);
65
66 bool is_done() const { return _sp >= _end; }
67
68 // Query
69 intptr_t* sp() const { return _sp; }
70 inline address pc() const { return get_pc(); }
71 inline intptr_t* fp() const;
72 inline intptr_t* unextended_sp() const { return _unextended_sp; }
73 inline address orig_pc() const;
74
75 inline bool is_interpreted() const;
76 inline bool is_stub() const;
77 inline bool is_compiled() const;
78 CodeBlob* cb() const { return _cb; }
79 inline void get_cb();
80 const ImmutableOopMap* oopmap() const { if (_oopmap == nullptr) get_oopmap(); return _oopmap; }
81 inline int frame_size() const;
82 inline int stack_argsize() const;
83 inline int num_oops() const;
84
85 inline void initialize_register_map(RegisterMap* map);
86 template <typename RegisterMapT> inline void next(RegisterMapT* map, bool stop = false);
87
88 template <typename RegisterMapT> inline void update_reg_map(RegisterMapT* map);
89
90 void handle_deopted() const;
91
92 inline frame to_frame() const;
93
94 #ifdef ASSERT
95 bool is_in_frame(void* p) const;
96 template <typename RegisterMapT> bool is_in_oops(void* p, const RegisterMapT* map) const;
97 #endif
98
99 void print_on(outputStream* st) const PRODUCT_RETURN;
100
101 private:
102 inline address get_pc() const;
103
104 inline int interpreter_frame_size() const;
105 inline int interpreter_frame_num_oops() const;
106 inline int interpreter_frame_stack_argsize() const;
107 inline void next_for_interpreter_frame();
108 inline intptr_t* unextended_sp_for_interpreter_frame() const;
109 inline intptr_t* derelativize(int offset) const;
110 inline void get_oopmap() const;
111 inline void get_oopmap(address pc, int oopmap_slot) const;
112
113 template <typename RegisterMapT> inline void update_reg_map_pd(RegisterMapT* map);
114
115 template <typename RegisterMapT>
116 inline void* reg_to_loc(VMReg reg, const RegisterMapT* map) const;
117
118 void assert_is_interpreted_and_frame_type_mixed() const NOT_DEBUG_RETURN;
119
120 public:
121 template <class OopClosureType, class RegisterMapT>
122 inline void iterate_oops(OopClosureType* closure, const RegisterMapT* map) const;
123 template <class DerivedOopClosureType, class RegisterMapT>
124 inline void iterate_derived_pointers(DerivedOopClosureType* closure, const RegisterMapT* map) const;
125 };
126
127 #endif // SHARE_RUNTIME_STACKCHUNKFRAMESTREAM_HPP