1 /* 2 * Copyright (c) 2008, 2019, 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_ARM_FRAME_ARM_INLINE_HPP 26 #define CPU_ARM_FRAME_ARM_INLINE_HPP 27 28 #include "code/codeCache.hpp" 29 #include "code/vmreg.inline.hpp" 30 31 // Inline functions for ARM frames: 32 33 // Constructors: 34 35 inline frame::frame() { 36 _pc = NULL; 37 _sp = NULL; 38 _unextended_sp = NULL; 39 _fp = NULL; 40 _cb = NULL; 41 _deopt_state = unknown; 42 } 43 44 inline void frame::init(intptr_t* sp, intptr_t* fp, address pc) { 45 _sp = sp; 46 _unextended_sp = sp; 47 _fp = fp; 48 _pc = pc; 49 assert(pc != NULL, "no pc?"); 50 _cb = CodeCache::find_blob(pc); 51 adjust_unextended_sp(); 52 53 address original_pc = CompiledMethod::get_deopt_original_pc(this); 54 if (original_pc != NULL) { 55 _pc = original_pc; 56 _deopt_state = is_deoptimized; 57 } else { 58 _deopt_state = not_deoptimized; 59 } 60 } 61 62 inline frame::frame(intptr_t* sp, intptr_t* fp, address pc) { 63 init(sp, fp, pc); 64 } 65 66 inline frame::frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) { 67 _sp = sp; 68 _unextended_sp = unextended_sp; 69 _fp = fp; 70 _pc = pc; 71 assert(pc != NULL, "no pc?"); 72 _cb = CodeCache::find_blob(pc); 73 adjust_unextended_sp(); 74 75 address original_pc = CompiledMethod::get_deopt_original_pc(this); 76 if (original_pc != NULL) { 77 _pc = original_pc; 78 assert(_cb->as_compiled_method()->insts_contains_inclusive(_pc), 79 "original PC must be in the main code section of the the compiled method (or must be immediately following it)"); 80 _deopt_state = is_deoptimized; 81 } else { 82 _deopt_state = not_deoptimized; 83 } 84 } 85 86 87 inline frame::frame(intptr_t* sp, intptr_t* fp) { 88 _sp = sp; 89 _unextended_sp = sp; 90 _fp = fp; 91 assert(sp != NULL,"null SP ?"); 92 _pc = (address)(sp[-1]); 93 // assert(_pc != NULL, "no pc?"); // see comments in x86 94 _cb = CodeCache::find_blob(_pc); 95 adjust_unextended_sp(); 96 97 address original_pc = CompiledMethod::get_deopt_original_pc(this); 98 if (original_pc != NULL) { 99 _pc = original_pc; 100 _deopt_state = is_deoptimized; 101 } else { 102 _deopt_state = not_deoptimized; 103 } 104 } 105 106 107 // Accessors 108 109 inline bool frame::equal(frame other) const { 110 bool ret = sp() == other.sp() 111 && unextended_sp() == other.unextended_sp() 112 && fp() == other.fp() 113 && pc() == other.pc(); 114 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); 115 return ret; 116 } 117 118 // Return unique id for this frame. The id must have a value where we can distinguish 119 // identity and younger/older relationship. NULL represents an invalid (incomparable) 120 // frame. 121 inline intptr_t* frame::id(void) const { return unextended_sp(); } 122 123 // Return true if the frame is older (less recent activation) than the frame represented by id 124 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 125 return this->id() > id ; } 126 127 128 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } 129 130 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } 131 132 // Return address: 133 134 inline address* frame::sender_pc_addr() const { return (address*) addr_at(return_addr_offset); } 135 inline address frame::sender_pc() const { return *sender_pc_addr(); } 136 137 inline intptr_t* frame::sender_sp() const { return addr_at(sender_sp_offset); } 138 139 inline intptr_t** frame::interpreter_frame_locals_addr() const { 140 return (intptr_t**)addr_at(interpreter_frame_locals_offset); 141 } 142 143 inline intptr_t* frame::interpreter_frame_last_sp() const { 144 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); 145 } 146 147 inline intptr_t* frame::interpreter_frame_bcp_addr() const { 148 return (intptr_t*)addr_at(interpreter_frame_bcp_offset); 149 } 150 151 inline intptr_t* frame::interpreter_frame_mdp_addr() const { 152 return (intptr_t*)addr_at(interpreter_frame_mdp_offset); 153 } 154 155 156 // Constant pool cache 157 158 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 159 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset); 160 } 161 162 // Method 163 164 inline Method** frame::interpreter_frame_method_addr() const { 165 return (Method**)addr_at(interpreter_frame_method_offset); 166 } 167 168 inline oop* frame::interpreter_frame_mirror_addr() const { 169 return (oop*)addr_at(interpreter_frame_mirror_offset); 170 } 171 172 // top of expression stack 173 inline intptr_t* frame::interpreter_frame_tos_address() const { 174 intptr_t* last_sp = interpreter_frame_last_sp(); 175 if (last_sp == NULL ) { 176 return sp(); 177 } else { 178 // sp() may have been extended or shrunk by an adapter. At least 179 // check that we don't fall behind the legal region. 180 // For top deoptimized frame last_sp == interpreter_frame_monitor_end. 181 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); 182 return last_sp; 183 } 184 } 185 186 inline oop* frame::interpreter_frame_temp_oop_addr() const { 187 return (oop *)(fp() + interpreter_frame_oop_temp_offset); 188 } 189 190 inline int frame::interpreter_frame_monitor_size() { 191 return BasicObjectLock::size(); 192 } 193 194 195 // expression stack 196 // (the max_stack arguments are used by the GC; see class FrameClosure) 197 198 inline intptr_t* frame::interpreter_frame_expression_stack() const { 199 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); 200 return monitor_end-1; 201 } 202 203 204 // Entry frames 205 206 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 207 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset); 208 } 209 210 211 // Compiled frames 212 213 inline oop frame::saved_oop_result(RegisterMap* map) const { 214 oop* result_adr = (oop*) map->location(R0->as_VMReg()); 215 guarantee(result_adr != NULL, "bad register save location"); 216 return (*result_adr); 217 } 218 219 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 220 oop* result_adr = (oop*) map->location(R0->as_VMReg()); 221 guarantee(result_adr != NULL, "bad register save location"); 222 *result_adr = obj; 223 } 224 225 #endif // CPU_ARM_FRAME_ARM_INLINE_HPP