1 /*
2 * Copyright (c) 1997, 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_FRAME_INLINE_HPP
26 #define SHARE_RUNTIME_FRAME_INLINE_HPP
27
28 #include "runtime/frame.hpp"
29
30 #include "code/codeBlob.inline.hpp"
31 #include "code/nmethod.inline.hpp"
32 #include "interpreter/interpreter.hpp"
33 #include "oops/stackChunkOop.inline.hpp"
34 #include "oops/method.hpp"
35 #include "runtime/continuation.hpp"
36 #include "runtime/registerMap.hpp"
37 #include "runtime/stubRoutines.hpp"
38 #include "utilities/macros.hpp"
39 #ifdef ZERO
40 # include "entryFrame_zero.hpp"
41 # include "fakeStubFrame_zero.hpp"
42 # include "interpreterFrame_zero.hpp"
43 #endif
44
45 #include CPU_HEADER_INLINE(frame)
46
47 inline bool frame::is_entry_frame() const {
48 return StubRoutines::returns_to_call_stub(pc());
49 }
50
51 inline bool frame::is_stub_frame() const {
52 return StubRoutines::is_stub_code(pc()) || (_cb != nullptr && _cb->is_adapter_blob());
53 }
54
55 inline bool frame::is_first_frame() const {
56 return (is_entry_frame() && entry_frame_is_first())
57 // Upcall stub frames entry frames are only present on certain platforms
58 || (is_upcall_stub_frame() && upcall_stub_frame_is_first());
59 }
60
61 inline bool frame::is_upcall_stub_frame() const {
62 return _cb != nullptr && _cb->is_upcall_stub();
63 }
64
65 inline bool frame::is_compiled_frame() const {
66 if (_cb != nullptr &&
67 _cb->is_nmethod() &&
68 _cb->as_nmethod()->is_java_method()) {
69 return true;
70 }
71 return false;
72 }
73
74 inline address frame::get_deopt_original_pc() const {
75 if (_cb == nullptr) return nullptr;
76
77 nmethod* nm = _cb->as_nmethod_or_null();
78 if (nm != nullptr && nm->is_deopt_pc(_pc)) {
79 return nm->get_original_pc(this);
80 }
81 return nullptr;
82 }
83
84 template <typename RegisterMapT>
85 inline address frame::oopmapreg_to_location(VMReg reg, const RegisterMapT* reg_map) const {
86 if (reg->is_reg()) {
87 // If it is passed in a register, it got spilled in the stub frame.
88 return reg_map->location(reg, sp());
89 } else {
90 int sp_offset_in_bytes = reg->reg2stack() * VMRegImpl::stack_slot_size;
91 if (reg_map->in_cont()) {
92 return (address)((intptr_t)reg_map->as_RegisterMap()->stack_chunk()->relativize_usp_offset(*this, sp_offset_in_bytes));
93 }
94 address usp = (address)unextended_sp();
95 assert(reg_map->thread() == nullptr || reg_map->thread()->is_in_usable_stack(usp), INTPTR_FORMAT, p2i(usp));
96 return (usp + sp_offset_in_bytes);
97 }
98 }
99
100 template <typename RegisterMapT>
101 inline oop* frame::oopmapreg_to_oop_location(VMReg reg, const RegisterMapT* reg_map) const {
102 return (oop*)oopmapreg_to_location(reg, reg_map);
103 }
104
105 inline CodeBlob* frame::get_cb() const {
106 // if (_cb == nullptr) _cb = CodeCache::find_blob(_pc);
107 if (_cb == nullptr) {
108 int slot;
109 _cb = CodeCache::find_blob_and_oopmap(_pc, slot);
110 if (_oop_map == nullptr && slot >= 0) {
111 _oop_map = _cb->oop_map_for_slot(slot, _pc);
112 }
113 }
114 return _cb;
115 }
116
117 inline const ImmutableOopMap* frame::get_oop_map() const {
118 if (_cb == nullptr || _cb->oop_maps() == nullptr) return nullptr;
119
120 NativePostCallNop* nop = nativePostCallNop_at(_pc);
121 int oopmap_slot;
122 int cb_offset;
123 if (nop != nullptr && nop->decode(oopmap_slot, cb_offset)) {
124 return _cb->oop_map_for_slot(oopmap_slot, _pc);
125 }
126 const ImmutableOopMap* oop_map = OopMapSet::find_map(this);
127 return oop_map;
128 }
129
130 inline int frame::interpreter_frame_monitor_size_in_bytes() {
131 // Number of bytes for a monitor.
132 return frame::interpreter_frame_monitor_size() * wordSize;
133 }
134
135 #endif // SHARE_RUNTIME_FRAME_INLINE_HPP