1 /*
2 * Copyright (c) 2019, 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 CPU_X86_STACKCHUNKFRAMESTREAM_X86_INLINE_HPP
26 #define CPU_X86_STACKCHUNKFRAMESTREAM_X86_INLINE_HPP
27
28 #include "interpreter/oopMapCache.hpp"
29 #include "runtime/frame.inline.hpp"
30 #include "runtime/registerMap.hpp"
31
32 #ifdef ASSERT
33 template <ChunkFrames frame_kind>
34 inline bool StackChunkFrameStream<frame_kind>::is_in_frame(void* p0) const {
35 assert(!is_done(), "");
36 intptr_t* p = (intptr_t*)p0;
37 int argsize = is_compiled() ? (_cb->as_nmethod()->num_stack_arg_slots() * VMRegImpl::stack_slot_size) >> LogBytesPerWord : 0;
38 int frame_size = _cb->frame_size() + argsize;
39 return p == sp() - frame::sender_sp_offset || ((p - unextended_sp()) >= 0 && (p - unextended_sp()) < frame_size);
40 }
41 #endif
42
43 template <ChunkFrames frame_kind>
44 inline frame StackChunkFrameStream<frame_kind>::to_frame() const {
45 if (is_done()) {
46 return frame(_sp, _sp, nullptr, nullptr, nullptr, nullptr, true);
47 } else {
48 return frame(sp(), unextended_sp(), fp(), pc(), cb(), _oopmap, true);
49 }
50 }
51
52 template <ChunkFrames frame_kind>
53 inline address StackChunkFrameStream<frame_kind>::get_pc() const {
54 assert(!is_done(), "");
55 return *(address*)(_sp - 1);
56 }
57
58 template <ChunkFrames frame_kind>
59 inline intptr_t* StackChunkFrameStream<frame_kind>::fp() const {
60 intptr_t* fp_addr = _sp - frame::sender_sp_offset;
61 return (frame_kind == ChunkFrames::Mixed && is_interpreted())
62 ? fp_addr + *fp_addr // derelativize
63 : *(intptr_t**)fp_addr;
64 }
65
66 template <ChunkFrames frame_kind>
67 inline intptr_t* StackChunkFrameStream<frame_kind>::derelativize(int offset) const {
68 intptr_t* fp = this->fp();
69 assert(fp != nullptr, "");
70 return fp + fp[offset];
71 }
72
73 template <ChunkFrames frame_kind>
74 inline intptr_t* StackChunkFrameStream<frame_kind>::unextended_sp_for_interpreter_frame() const {
75 assert_is_interpreted_and_frame_type_mixed();
76 return derelativize(frame::interpreter_frame_last_sp_offset);
77 }
78
79 template <ChunkFrames frame_kind>
80 inline void StackChunkFrameStream<frame_kind>::next_for_interpreter_frame() {
81 assert_is_interpreted_and_frame_type_mixed();
82 if (derelativize(frame::interpreter_frame_locals_offset) + 1 >= _end) {
83 _unextended_sp = _end;
84 _sp = _end;
85 } else {
86 intptr_t* fp = this->fp();
87 _unextended_sp = fp + fp[frame::interpreter_frame_sender_sp_offset];
88 _sp = fp + frame::sender_sp_offset;
89 }
90 }
91
92 template <ChunkFrames frame_kind>
93 inline int StackChunkFrameStream<frame_kind>::interpreter_frame_size() const {
94 assert_is_interpreted_and_frame_type_mixed();
95
96 intptr_t* top = unextended_sp(); // later subtract argsize if callee is interpreted
97 intptr_t* bottom = derelativize(frame::interpreter_frame_locals_offset) + 1; // the sender's unextended sp: derelativize(frame::interpreter_frame_sender_sp_offset);
98 return (int)(bottom - top);
99 }
100
101 template <ChunkFrames frame_kind>
102 inline int StackChunkFrameStream<frame_kind>::interpreter_frame_stack_argsize() const {
103 assert_is_interpreted_and_frame_type_mixed();
104 int diff = (int)(derelativize(frame::interpreter_frame_locals_offset) - derelativize(frame::interpreter_frame_sender_sp_offset) + 1);
105 return diff;
106 }
107
108 template <ChunkFrames frame_kind>
109 inline int StackChunkFrameStream<frame_kind>::interpreter_frame_num_oops() const {
110 assert_is_interpreted_and_frame_type_mixed();
111 ResourceMark rm;
112 InterpreterOopMap mask;
113 frame f = to_frame();
114 f.interpreted_frame_oop_map(&mask);
115 return mask.num_oops()
116 + 1 // for the mirror oop
117 + pointer_delta_as_int((intptr_t*)f.interpreter_frame_monitor_begin(),
118 (intptr_t*)f.interpreter_frame_monitor_end())/BasicObjectLock::size();
119 }
120
121 template<>
122 template<>
123 inline void StackChunkFrameStream<ChunkFrames::Mixed>::update_reg_map_pd(RegisterMap* map) {
124 if (map->update_map()) {
125 frame::update_map_with_saved_link(map, map->in_cont() ? (intptr_t**)(intptr_t)frame::sender_sp_offset
126 : (intptr_t**)(_sp - frame::sender_sp_offset));
127 }
128 }
129
130 template<>
131 template<>
132 inline void StackChunkFrameStream<ChunkFrames::CompiledOnly>::update_reg_map_pd(RegisterMap* map) {
133 if (map->update_map()) {
134 frame::update_map_with_saved_link(map, map->in_cont() ? (intptr_t**)(intptr_t)frame::sender_sp_offset
135 : (intptr_t**)(_sp - frame::sender_sp_offset));
136 }
137 }
138
139 template <ChunkFrames frame_kind>
140 template <typename RegisterMapT>
141 inline void StackChunkFrameStream<frame_kind>::update_reg_map_pd(RegisterMapT* map) {}
142
143 #endif // CPU_X86_STACKCHUNKFRAMESTREAM_X86_INLINE_HPP