1 /* 2 * Copyright (c) 2008, 2016, 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_VM_FRAME_ARM_INLINE_HPP 26 #define CPU_ARM_VM_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(_pc), "original PC must be in CompiledMethod"); 79 _deopt_state = is_deoptimized; 80 } else { 81 _deopt_state = not_deoptimized; 82 } 83 } 84 85 #ifndef AARCH64 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 #endif // !AARCH64 107 108 // Accessors 109 110 inline bool frame::equal(frame other) const { 111 bool ret = sp() == other.sp() 112 && unextended_sp() == other.unextended_sp() 113 && fp() == other.fp() 114 && pc() == other.pc(); 115 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); 116 return ret; 117 } 118 119 // Return unique id for this frame. The id must have a value where we can distinguish 120 // identity and younger/older relationship. NULL represents an invalid (incomparable) 121 // frame. 122 inline intptr_t* frame::id(void) const { return unextended_sp(); } 123 124 // Relationals on frames based 125 // Return true if the frame is younger (more recent activation) than the frame represented by id 126 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 127 return this->id() < id ; } 128 129 // Return true if the frame is older (less recent activation) than the frame represented by id 130 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 131 return this->id() > id ; } 132 133 134 135 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } 136 137 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } 138 139 // Return address: 140 141 inline address* frame::sender_pc_addr() const { return (address*) addr_at(return_addr_offset); } 142 inline address frame::sender_pc() const { return *sender_pc_addr(); } 143 144 inline intptr_t* frame::sender_sp() const { return addr_at(sender_sp_offset); } 145 146 inline intptr_t** frame::interpreter_frame_locals_addr() const { 147 return (intptr_t**)addr_at(interpreter_frame_locals_offset); 148 } 149 150 #ifndef AARCH64 151 inline intptr_t* frame::interpreter_frame_last_sp() const { 152 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); 153 } 154 #endif // !AARCH64 155 156 inline intptr_t* frame::interpreter_frame_bcp_addr() const { 157 return (intptr_t*)addr_at(interpreter_frame_bcp_offset); 158 } 159 160 inline intptr_t* frame::interpreter_frame_mdp_addr() const { 161 return (intptr_t*)addr_at(interpreter_frame_mdp_offset); 162 } 163 164 165 // Constant pool cache 166 167 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 168 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset); 169 } 170 171 // Method 172 173 inline Method** frame::interpreter_frame_method_addr() const { 174 return (Method**)addr_at(interpreter_frame_method_offset); 175 } 176 177 inline oop* frame::interpreter_frame_mirror_addr() const { 178 return (oop*)addr_at(interpreter_frame_mirror_offset); 179 } 180 181 // top of expression stack 182 inline intptr_t* frame::interpreter_frame_tos_address() const { 183 #ifdef AARCH64 184 intptr_t* stack_top = (intptr_t*)*addr_at(interpreter_frame_stack_top_offset); 185 assert(stack_top != NULL, "should be stored before call"); 186 assert(stack_top <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); 187 return stack_top; 188 #else 189 intptr_t* last_sp = interpreter_frame_last_sp(); 190 if (last_sp == NULL ) { 191 return sp(); 192 } else { 193 // sp() may have been extended or shrunk by an adapter. At least 194 // check that we don't fall behind the legal region. 195 // For top deoptimized frame last_sp == interpreter_frame_monitor_end. 196 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); 197 return last_sp; 198 } 199 #endif // AARCH64 200 } 201 202 inline oop* frame::interpreter_frame_temp_oop_addr() const { 203 return (oop *)(fp() + interpreter_frame_oop_temp_offset); 204 } 205 206 inline int frame::interpreter_frame_monitor_size() { 207 return BasicObjectLock::size(); 208 } 209 210 211 // expression stack 212 // (the max_stack arguments are used by the GC; see class FrameClosure) 213 214 inline intptr_t* frame::interpreter_frame_expression_stack() const { 215 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); 216 return monitor_end-1; 217 } 218 219 220 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } 221 222 223 // Entry frames 224 225 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 226 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset); 227 } 228 229 230 // Compiled frames 231 232 inline bool frame::volatile_across_calls(Register reg) { 233 return true; 234 } 235 236 inline oop frame::saved_oop_result(RegisterMap* map) const { 237 oop* result_adr = (oop*) map->location(R0->as_VMReg()); 238 guarantee(result_adr != NULL, "bad register save location"); 239 return (*result_adr); 240 } 241 242 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 243 oop* result_adr = (oop*) map->location(R0->as_VMReg()); 244 guarantee(result_adr != NULL, "bad register save location"); 245 *result_adr = obj; 246 } 247 248 #endif // CPU_ARM_VM_FRAME_ARM_INLINE_HPP