frame_sparc.inline.hpp revision 3883:cd3d6a6b95d9
1/* 2 * Copyright (c) 1997, 2012, 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_SPARC_VM_FRAME_SPARC_INLINE_HPP 26#define CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP 27 28// Inline functions for SPARC frames: 29 30// Constructors 31 32inline frame::frame() { 33 _pc = NULL; 34 _sp = NULL; 35 _younger_sp = NULL; 36 _cb = NULL; 37 _deopt_state = unknown; 38 _sp_adjustment_by_callee = 0; 39} 40 41// Accessors: 42 43inline bool frame::equal(frame other) const { 44 bool ret = sp() == other.sp() 45 && fp() == other.fp() 46 && pc() == other.pc(); 47 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); 48 return ret; 49} 50 51// Return unique id for this frame. The id must have a value where we can distinguish 52// identity and younger/older relationship. NULL represents an invalid (incomparable) 53// frame. 54inline intptr_t* frame::id(void) const { return unextended_sp(); } 55 56// Relationals on frames based 57// Return true if the frame is younger (more recent activation) than the frame represented by id 58inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 59 return this->id() < id ; } 60 61// Return true if the frame is older (less recent activation) than the frame represented by id 62inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); 63 return this->id() > id ; } 64 65inline int frame::frame_size(RegisterMap* map) const { return sender_sp() - sp(); } 66 67inline intptr_t* frame::link() const { return (intptr_t *)(fp()[FP->sp_offset_in_saved_window()] + STACK_BIAS); } 68 69inline void frame::set_link(intptr_t* addr) { assert(link()==addr, "frame nesting is controlled by hardware"); } 70 71inline intptr_t* frame::unextended_sp() const { return sp() + _sp_adjustment_by_callee; } 72 73// return address: 74 75inline address frame::sender_pc() const { return *I7_addr() + pc_return_offset; } 76 77inline address* frame::I7_addr() const { return (address*) &sp()[ I7->sp_offset_in_saved_window()]; } 78inline address* frame::I0_addr() const { return (address*) &sp()[ I0->sp_offset_in_saved_window()]; } 79 80inline address* frame::O7_addr() const { return (address*) &younger_sp()[ I7->sp_offset_in_saved_window()]; } 81inline address* frame::O0_addr() const { return (address*) &younger_sp()[ I0->sp_offset_in_saved_window()]; } 82 83inline intptr_t* frame::sender_sp() const { return fp(); } 84 85inline intptr_t* frame::real_fp() const { return fp(); } 86 87// Used only in frame::oopmapreg_to_location 88// This return a value in VMRegImpl::slot_size 89inline int frame::pd_oop_map_offset_adjustment() const { 90 return _sp_adjustment_by_callee * VMRegImpl::slots_per_word; 91} 92 93#ifdef CC_INTERP 94inline intptr_t** frame::interpreter_frame_locals_addr() const { 95 interpreterState istate = get_interpreterState(); 96 return (intptr_t**) &istate->_locals; 97} 98 99inline intptr_t* frame::interpreter_frame_bcx_addr() const { 100 interpreterState istate = get_interpreterState(); 101 return (intptr_t*) &istate->_bcp; 102} 103 104inline intptr_t* frame::interpreter_frame_mdx_addr() const { 105 interpreterState istate = get_interpreterState(); 106 return (intptr_t*) &istate->_mdx; 107} 108 109inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } 110 111// bottom(base) of the expression stack (highest address) 112inline intptr_t* frame::interpreter_frame_expression_stack() const { 113 return (intptr_t*)interpreter_frame_monitor_end() - 1; 114} 115 116// top of expression stack (lowest address) 117inline intptr_t* frame::interpreter_frame_tos_address() const { 118 interpreterState istate = get_interpreterState(); 119 return istate->_stack + 1; // Is this off by one? QQQ 120} 121 122// monitor elements 123 124// in keeping with Intel side: end is lower in memory than begin; 125// and beginning element is oldest element 126// Also begin is one past last monitor. 127 128inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const { 129 return get_interpreterState()->monitor_base(); 130} 131 132inline BasicObjectLock* frame::interpreter_frame_monitor_end() const { 133 return (BasicObjectLock*) get_interpreterState()->stack_base(); 134} 135 136 137inline int frame::interpreter_frame_monitor_size() { 138 return round_to(BasicObjectLock::size(), WordsPerLong); 139} 140 141inline Method** frame::interpreter_frame_method_addr() const { 142 interpreterState istate = get_interpreterState(); 143 return &istate->_method; 144} 145 146 147// Constant pool cache 148 149// where LcpoolCache is saved: 150inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { 151 interpreterState istate = get_interpreterState(); 152 return &istate->_constants; // should really use accessor 153 } 154 155inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 156 interpreterState istate = get_interpreterState(); 157 return &istate->_constants; 158} 159 160#else // !CC_INTERP 161 162inline intptr_t** frame::interpreter_frame_locals_addr() const { 163 return (intptr_t**) sp_addr_at( Llocals->sp_offset_in_saved_window()); 164} 165 166inline intptr_t* frame::interpreter_frame_bcx_addr() const { 167 // %%%%% reinterpreting Lbcp as a bcx 168 return (intptr_t*) sp_addr_at( Lbcp->sp_offset_in_saved_window()); 169} 170 171inline intptr_t* frame::interpreter_frame_mdx_addr() const { 172 // %%%%% reinterpreting ImethodDataPtr as a mdx 173 return (intptr_t*) sp_addr_at( ImethodDataPtr->sp_offset_in_saved_window()); 174} 175 176inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } 177 178// bottom(base) of the expression stack (highest address) 179inline intptr_t* frame::interpreter_frame_expression_stack() const { 180 return (intptr_t*)interpreter_frame_monitors() - 1; 181} 182 183// top of expression stack (lowest address) 184inline intptr_t* frame::interpreter_frame_tos_address() const { 185 return *interpreter_frame_esp_addr() + 1; 186} 187 188inline BasicObjectLock** frame::interpreter_frame_monitors_addr() const { 189 return (BasicObjectLock**) sp_addr_at(Lmonitors->sp_offset_in_saved_window()); 190} 191inline intptr_t** frame::interpreter_frame_esp_addr() const { 192 return (intptr_t**)sp_addr_at(Lesp->sp_offset_in_saved_window()); 193} 194 195inline void frame::interpreter_frame_set_tos_address( intptr_t* x ) { 196 *interpreter_frame_esp_addr() = x - 1; 197} 198 199// monitor elements 200 201// in keeping with Intel side: end is lower in memory than begin; 202// and beginning element is oldest element 203// Also begin is one past last monitor. 204 205inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const { 206 int rounded_vm_local_words = round_to(frame::interpreter_frame_vm_local_words, WordsPerLong); 207 return (BasicObjectLock *)fp_addr_at(-rounded_vm_local_words); 208} 209 210inline BasicObjectLock* frame::interpreter_frame_monitor_end() const { 211 return interpreter_frame_monitors(); 212} 213 214 215inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) { 216 interpreter_frame_set_monitors(value); 217} 218 219inline int frame::interpreter_frame_monitor_size() { 220 return round_to(BasicObjectLock::size(), WordsPerLong); 221} 222 223inline Method** frame::interpreter_frame_method_addr() const { 224 return (Method**)sp_addr_at( Lmethod->sp_offset_in_saved_window()); 225} 226 227 228// Constant pool cache 229 230// where LcpoolCache is saved: 231inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const { 232 return (ConstantPoolCache**)sp_addr_at(LcpoolCache->sp_offset_in_saved_window()); 233 } 234 235inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { 236 return (ConstantPoolCache**)sp_addr_at( LcpoolCache->sp_offset_in_saved_window()); 237} 238#endif // CC_INTERP 239 240 241inline JavaCallWrapper* frame::entry_frame_call_wrapper() const { 242 // note: adjust this code if the link argument in StubGenerator::call_stub() changes! 243 const Argument link = Argument(0, false); 244 return (JavaCallWrapper*)sp()[link.as_in().as_register()->sp_offset_in_saved_window()]; 245} 246 247 248inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { 249 // always allocate non-argument locals 0..5 as if they were arguments: 250 int allocated_above_frame = nof_args; 251 if (allocated_above_frame < callee_register_argument_save_area_words) 252 allocated_above_frame = callee_register_argument_save_area_words; 253 if (allocated_above_frame > max_nof_locals) 254 allocated_above_frame = max_nof_locals; 255 256 // Note: monitors (BasicLock blocks) are never allocated in argument slots 257 //assert(local_index >= 0 && local_index < max_nof_locals, "bad local index"); 258 if (local_index < allocated_above_frame) 259 return local_index + callee_register_argument_save_area_sp_offset; 260 else 261 return local_index - (max_nof_locals + max_nof_monitors*2) + compiler_frame_vm_locals_fp_offset; 262} 263 264inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { 265 assert(local_index >= max_nof_locals && ((local_index - max_nof_locals) & 1) && (local_index - max_nof_locals) < max_nof_monitors*2, "bad monitor index"); 266 267 // The compiler uses the __higher__ of two indexes allocated to the monitor. 268 // Increasing local indexes are mapped to increasing memory locations, 269 // so the start of the BasicLock is associated with the __lower__ index. 270 271 int offset = (local_index-1) - (max_nof_locals + max_nof_monitors*2) + compiler_frame_vm_locals_fp_offset; 272 273 // We allocate monitors aligned zero mod 8: 274 assert((offset & 1) == 0, "monitor must be an an even address."); 275 // This works because all monitors are allocated after 276 // all locals, and because the highest address corresponding to any 277 // monitor index is always even. 278 assert((compiler_frame_vm_locals_fp_offset & 1) == 0, "end of monitors must be even address"); 279 280 return offset; 281} 282 283inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) { 284 // always allocate non-argument locals 0..5 as if they were arguments: 285 int allocated_above_frame = nof_args; 286 if (allocated_above_frame < callee_register_argument_save_area_words) 287 allocated_above_frame = callee_register_argument_save_area_words; 288 if (allocated_above_frame > max_nof_locals) 289 allocated_above_frame = max_nof_locals; 290 291 int allocated_in_frame = (max_nof_locals + max_nof_monitors*2) - allocated_above_frame; 292 293 return compiler_frame_vm_locals_fp_offset - allocated_in_frame; 294} 295 296// On SPARC, the %lN and %iN registers are non-volatile. 297inline bool frame::volatile_across_calls(Register reg) { 298 // This predicate is (presently) applied only to temporary registers, 299 // and so it need not recognize non-volatile globals. 300 return reg->is_out() || reg->is_global(); 301} 302 303inline oop frame::saved_oop_result(RegisterMap* map) const { 304 return *((oop*) map->location(O0->as_VMReg())); 305} 306 307inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { 308 *((oop*) map->location(O0->as_VMReg())) = obj; 309} 310 311#endif // CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP 312