1 /* 2 * Copyright (c) 2013, Red Hat Inc. 3 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 4 * All rights reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 * 25 */ 26 27 #ifndef CPU_AARCH64_VM_FRAME_AARCH64_INLINE_HPP 28 #define CPU_AARCH64_VM_FRAME_AARCH64_INLINE_HPP 29 30 #include "code/codeCache.hpp" 31 32 // Inline functions for AArch64 frames: 33 34 // Constructors: 35 36 inline frame::frame() { 37 _pc = NULL; 38 _sp = NULL; 39 _unextended_sp = NULL; 40 _fp = NULL; 41 _cb = NULL; 42 _deopt_state = unknown; 43 } 44 45 //static int spin; 46 47 inline void frame::init(intptr_t* sp, intptr_t* fp, address pc) { 48 intptr_t a = intptr_t(sp); 49 intptr_t b = intptr_t(fp); 50 _sp = sp; 51 _unextended_sp = sp; 52 _fp = fp; 53 _pc = pc; 54 assert(pc != NULL, "no pc?"); 55 _cb = CodeCache::find_blob(pc); 56 adjust_unextended_sp(); 57 58 address original_pc = nmethod::get_deopt_original_pc(this); 59 if (original_pc != NULL) { 60 _pc = original_pc; 61 _deopt_state = is_deoptimized; 62 } else { 63 _deopt_state = not_deoptimized; 64 } 65 } 66 67 inline frame::frame(intptr_t* sp, intptr_t* fp, address pc) { 68 init(sp, fp, pc); 69 } 70 71 inline frame::frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) { 72 intptr_t a = intptr_t(sp); 73 intptr_t b = intptr_t(fp); 74 _sp = sp; 75 _unextended_sp = unextended_sp; 76 _fp = fp; 77 _pc = pc; 78 assert(pc != NULL, "no pc?"); 79 _cb = CodeCache::find_blob(pc); 80 adjust_unextended_sp(); 81 82 address original_pc = nmethod::get_deopt_original_pc(this); 83 if (original_pc != NULL) { 84 _pc = original_pc; 85 assert(((nmethod*)_cb)->insts_contains(_pc), "original PC must be in nmethod"); 86 _deopt_state = is_deoptimized; 87 } else { 88 _deopt_state = not_deoptimized; 89 } 90 } 91 92 inline frame::frame(intptr_t* sp, intptr_t* fp) { 93 intptr_t a = intptr_t(sp); 94 intptr_t b = intptr_t(fp); 95 _sp = sp; 96 _unextended_sp = sp; 97 _fp = fp; 98 _pc = (address)(sp[-1]); 99 100 // Here's a sticky one. This constructor can be called via AsyncGetCallTrace 101 // when last_Java_sp is non-null but the pc fetched is junk. If we are truly 102 // unlucky the junk value could be to a zombied method and we'll die on the 103 // find_blob call. This is also why we can have no asserts on the validity 104 // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler 105 // -> pd_last_frame should use a specialized version of pd_last_frame which could 106 // call a specilaized frame constructor instead of this one. 107 // Then we could use the assert below. However this assert is of somewhat dubious 108 // value. 109 // assert(_pc != NULL, "no pc?"); 110 111 _cb = CodeCache::find_blob(_pc); 112 adjust_unextended_sp(); 113 114 address original_pc = nmethod::get_deopt_original_pc(this); 115 if (original_pc != NULL) { 116 _pc = original_pc; 117 _deopt_state = is_deoptimized; 118 } else { 119 _deopt_state = not_deoptimized; 120 } 121 } 122 123 // Accessors 124 125 inline bool frame::equal(frame other) const { 126 bool ret = sp() == other.sp() 127 && unextended_sp() == other.unextended_sp() 128 && fp() == other.fp() 129 && pc() == other.pc(); 130 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); 131 return ret; 132 } 133 134 // Return unique id for this frame. The id must have a value where we can distinguish 135 // identity and younger/older relationship. NULL represents an invalid (incomparable) 136 // frame. 137 inline intptr_t* frame::id(void) const { return unextended_sp(); } 138 139 // Relationals on frames based 140 // Return true if the frame is younger (more recent activation) than the frame represented by id 141 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 142 return this->id() < id ; } 143 144 // Return true if the frame is older (less recent activation) than the frame represented by id 145 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 146 return this->id() > id ; } 147 148 149 150 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } 151 inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } 152 153 154 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } 155 156 // Return address: 157 158 inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); } 159 inline address frame::sender_pc() const { return *sender_pc_addr(); } 160 161 // return address of param, zero origin index. 162 inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); } 163 164 #ifdef CC_INTERP 165 166 inline interpreterState frame::get_interpreterState() const { 167 return ((interpreterState)addr_at( -((int)sizeof(BytecodeInterpreter))/wordSize )); 168 } 169 170 inline intptr_t* frame::sender_sp() const { 171 // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames? 172 if (is_interpreted_frame()) { 173 assert(false, "should never happen"); 174 return get_interpreterState()->sender_sp(); 175 } else { 176 return addr_at(sender_sp_offset); 177 } 178 } 179 180 inline intptr_t** frame::interpreter_frame_locals_addr() const { 181 assert(is_interpreted_frame(), "must be interpreted"); 182 return &(get_interpreterState()->_locals); 183 } 184 185 inline intptr_t* frame::interpreter_frame_bcx_addr() const { 186 assert(is_interpreted_frame(), "must be interpreted"); 187 return (intptr_t*) &(get_interpreterState()->_bcp); 188 } 189 190 191 // Constant pool cache 192 193 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const { 194 assert(is_interpreted_frame(), "must be interpreted"); 195 return &(get_interpreterState()->_constants); 196 } 197 198 // Method 199 200 inline methodOop* frame::interpreter_frame_method_addr() const { 201 assert(is_interpreted_frame(), "must be interpreted"); 202 return &(get_interpreterState()->_method); 203 } 204 205 inline intptr_t* frame::interpreter_frame_mdx_addr() const { 206 assert(is_interpreted_frame(), "must be interpreted"); 207 return (intptr_t*) &(get_interpreterState()->_mdx); 208 } 209 210 // top of expression stack 211 inline intptr_t* frame::interpreter_frame_tos_address() const { 212 assert(is_interpreted_frame(), "wrong frame type"); 213 return get_interpreterState()->_stack + 1; 214 } 215 216 #else /* asm interpreter */ 217 inline intptr_t* frame::sender_sp() const { return addr_at( sender_sp_offset); } 218 219 inline intptr_t** frame::interpreter_frame_locals_addr() const { 220 return (intptr_t**)addr_at(interpreter_frame_locals_offset); 221 } 222 223 inline intptr_t* frame::interpreter_frame_last_sp() const { 224 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); 225 } 226 227 inline intptr_t* frame::interpreter_frame_bcx_addr() const { 228 return (intptr_t*)addr_at(interpreter_frame_bcx_offset); 229 } 230 231 232 inline intptr_t* frame::interpreter_frame_mdx_addr() const { 233 return (intptr_t*)addr_at(interpreter_frame_mdx_offset); 234 } 235 236 237 238 // Constant pool cache 239 240 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 241 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset); 242 } 243 244 // Method 245 246 inline Method** frame::interpreter_frame_method_addr() const { 247 return (Method**)addr_at(interpreter_frame_method_offset); 248 } 249 250 // top of expression stack 251 inline intptr_t* frame::interpreter_frame_tos_address() const { 252 intptr_t* last_sp = interpreter_frame_last_sp(); 253 if (last_sp == NULL) { 254 return sp(); 255 } else { 256 // sp() may have been extended or shrunk by an adapter. At least 257 // check that we don't fall behind the legal region. 258 // For top deoptimized frame last_sp == interpreter_frame_monitor_end. 259 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); 260 return last_sp; 261 } 262 } 263 264 inline oop* frame::interpreter_frame_temp_oop_addr() const { 265 return (oop *)(fp() + interpreter_frame_oop_temp_offset); 266 } 267 268 #endif /* CC_INTERP */ 269 270 inline int frame::pd_oop_map_offset_adjustment() const { 271 return 0; 272 } 273 274 inline int frame::interpreter_frame_monitor_size() { 275 return BasicObjectLock::size(); 276 } 277 278 279 // expression stack 280 // (the max_stack arguments are used by the GC; see class FrameClosure) 281 282 inline intptr_t* frame::interpreter_frame_expression_stack() const { 283 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); 284 return monitor_end-1; 285 } 286 287 288 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } 289 290 291 // Entry frames 292 293 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { 294 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset); 295 } 296 297 298 // Compiled frames 299 300 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { 301 return (nof_args - local_index + (local_index < nof_args ? 1: -1)); 302 } 303 304 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { 305 return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors); 306 } 307 308 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) { 309 return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1); 310 } 311 312 inline bool frame::volatile_across_calls(Register reg) { 313 return true; 314 } 315 316 317 318 inline oop frame::saved_oop_result(RegisterMap* map) const { 319 oop* result_adr = (oop *)map->location(r0->as_VMReg()); 320 guarantee(result_adr != NULL, "bad register save location"); 321 322 return (*result_adr); 323 } 324 325 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 326 oop* result_adr = (oop *)map->location(r0->as_VMReg()); 327 guarantee(result_adr != NULL, "bad register save location"); 328 329 *result_adr = obj; 330 } 331 332 #endif // CPU_AARCH64_VM_FRAME_AARCH64_INLINE_HPP