Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/frame_x86.inline.hpp @ 23822:626f594dffa6
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp, roland
| author | csahu |
|---|---|
| date | Tue, 01 Mar 2016 12:50:37 +0530 |
| parents | e8260b6328fb |
| children | dd9cc155639c |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef CPU_X86_VM_FRAME_X86_INLINE_HPP |
| 26 #define CPU_X86_VM_FRAME_X86_INLINE_HPP | |
| 27 | |
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28 #include "code/codeCache.hpp" |
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29 |
| 0 | 30 // Inline functions for Intel frames: |
| 31 | |
| 32 // Constructors: | |
| 33 | |
| 34 inline frame::frame() { | |
| 35 _pc = NULL; | |
| 36 _sp = NULL; | |
| 37 _unextended_sp = NULL; | |
| 38 _fp = NULL; | |
| 39 _cb = NULL; | |
| 40 _deopt_state = unknown; | |
| 41 } | |
| 42 | |
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43 inline void frame::init(intptr_t* sp, intptr_t* fp, address pc) { |
| 0 | 44 _sp = sp; |
| 45 _unextended_sp = sp; | |
| 46 _fp = fp; | |
| 47 _pc = pc; | |
| 48 assert(pc != NULL, "no pc?"); | |
| 49 _cb = CodeCache::find_blob(pc); | |
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50 adjust_unextended_sp(); |
| 1204 | 51 |
| 52 address original_pc = nmethod::get_deopt_original_pc(this); | |
| 53 if (original_pc != NULL) { | |
| 54 _pc = original_pc; | |
| 0 | 55 _deopt_state = is_deoptimized; |
| 56 } else { | |
| 57 _deopt_state = not_deoptimized; | |
| 58 } | |
| 59 } | |
| 60 | |
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61 inline frame::frame(intptr_t* sp, intptr_t* fp, address pc) { |
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62 init(sp, fp, pc); |
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63 } |
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64 |
| 1204 | 65 inline frame::frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) { |
| 0 | 66 _sp = sp; |
| 67 _unextended_sp = unextended_sp; | |
| 68 _fp = fp; | |
| 69 _pc = pc; | |
| 70 assert(pc != NULL, "no pc?"); | |
| 71 _cb = CodeCache::find_blob(pc); | |
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72 adjust_unextended_sp(); |
| 1204 | 73 |
| 74 address original_pc = nmethod::get_deopt_original_pc(this); | |
| 75 if (original_pc != NULL) { | |
| 76 _pc = original_pc; | |
| 1748 | 77 assert(((nmethod*)_cb)->insts_contains(_pc), "original PC must be in nmethod"); |
| 0 | 78 _deopt_state = is_deoptimized; |
| 79 } else { | |
| 80 _deopt_state = not_deoptimized; | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 inline frame::frame(intptr_t* sp, intptr_t* fp) { | |
| 85 _sp = sp; | |
| 86 _unextended_sp = sp; | |
| 87 _fp = fp; | |
| 88 _pc = (address)(sp[-1]); | |
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89 |
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90 // Here's a sticky one. This constructor can be called via AsyncGetCallTrace |
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91 // when last_Java_sp is non-null but the pc fetched is junk. If we are truly |
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92 // unlucky the junk value could be to a zombied method and we'll die on the |
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93 // find_blob call. This is also why we can have no asserts on the validity |
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94 // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler |
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95 // -> pd_last_frame should use a specialized version of pd_last_frame which could |
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96 // call a specialized frame constructor instead of this one. |
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97 // Then we could use the assert below. However this assert is of somewhat dubious |
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98 // value. |
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99 // assert(_pc != NULL, "no pc?"); |
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100 |
| 0 | 101 _cb = CodeCache::find_blob(_pc); |
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102 adjust_unextended_sp(); |
| 0 | 103 |
| 1204 | 104 address original_pc = nmethod::get_deopt_original_pc(this); |
| 105 if (original_pc != NULL) { | |
| 106 _pc = original_pc; | |
| 0 | 107 _deopt_state = is_deoptimized; |
| 108 } else { | |
| 109 _deopt_state = not_deoptimized; | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 // Accessors | |
| 114 | |
| 115 inline bool frame::equal(frame other) const { | |
| 116 bool ret = sp() == other.sp() | |
| 117 && unextended_sp() == other.unextended_sp() | |
| 118 && fp() == other.fp() | |
| 119 && pc() == other.pc(); | |
| 120 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); | |
| 121 return ret; | |
| 122 } | |
| 123 | |
| 124 // Return unique id for this frame. The id must have a value where we can distinguish | |
| 125 // identity and younger/older relationship. NULL represents an invalid (incomparable) | |
| 126 // frame. | |
| 127 inline intptr_t* frame::id(void) const { return unextended_sp(); } | |
| 128 | |
| 129 // Relationals on frames based | |
| 130 // Return true if the frame is younger (more recent activation) than the frame represented by id | |
| 131 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); | |
| 132 return this->id() < id ; } | |
| 133 | |
| 134 // Return true if the frame is older (less recent activation) than the frame represented by id | |
| 135 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); | |
| 136 return this->id() > id ; } | |
| 137 | |
| 138 | |
| 139 | |
| 140 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } | |
| 141 inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } | |
| 142 | |
| 143 | |
| 144 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } | |
| 145 | |
| 146 // Return address: | |
| 147 | |
| 148 inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); } | |
| 149 inline address frame::sender_pc() const { return *sender_pc_addr(); } | |
| 150 | |
| 151 // return address of param, zero origin index. | |
| 152 inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); } | |
| 153 | |
| 154 #ifdef CC_INTERP | |
| 155 | |
| 156 inline interpreterState frame::get_interpreterState() const { | |
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157 return ((interpreterState)addr_at( -((int)sizeof(BytecodeInterpreter))/wordSize )); |
| 0 | 158 } |
| 159 | |
| 160 inline intptr_t* frame::sender_sp() const { | |
| 161 // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames? | |
| 162 if (is_interpreted_frame()) { | |
| 163 assert(false, "should never happen"); | |
| 164 return get_interpreterState()->sender_sp(); | |
| 165 } else { | |
| 166 return addr_at(sender_sp_offset); | |
| 167 } | |
| 168 } | |
| 169 | |
| 170 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
| 171 assert(is_interpreted_frame(), "must be interpreted"); | |
| 172 return &(get_interpreterState()->_locals); | |
| 173 } | |
| 174 | |
| 175 inline intptr_t* frame::interpreter_frame_bcx_addr() const { | |
| 176 assert(is_interpreted_frame(), "must be interpreted"); | |
| 304 | 177 return (intptr_t*) &(get_interpreterState()->_bcp); |
| 0 | 178 } |
| 179 | |
| 180 | |
| 181 // Constant pool cache | |
| 182 | |
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183 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { |
| 0 | 184 assert(is_interpreted_frame(), "must be interpreted"); |
| 185 return &(get_interpreterState()->_constants); | |
| 186 } | |
| 187 | |
| 188 // Method | |
| 189 | |
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190 inline Method** frame::interpreter_frame_method_addr() const { |
| 0 | 191 assert(is_interpreted_frame(), "must be interpreted"); |
| 192 return &(get_interpreterState()->_method); | |
| 193 } | |
| 194 | |
| 195 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
| 196 assert(is_interpreted_frame(), "must be interpreted"); | |
| 304 | 197 return (intptr_t*) &(get_interpreterState()->_mdx); |
| 0 | 198 } |
| 199 | |
| 200 // top of expression stack | |
| 201 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
| 202 assert(is_interpreted_frame(), "wrong frame type"); | |
| 203 return get_interpreterState()->_stack + 1; | |
| 204 } | |
| 205 | |
| 206 #else /* asm interpreter */ | |
| 207 inline intptr_t* frame::sender_sp() const { return addr_at( sender_sp_offset); } | |
| 208 | |
| 209 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
| 210 return (intptr_t**)addr_at(interpreter_frame_locals_offset); | |
| 211 } | |
| 212 | |
| 213 inline intptr_t* frame::interpreter_frame_last_sp() const { | |
| 214 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); | |
| 215 } | |
| 216 | |
| 217 inline intptr_t* frame::interpreter_frame_bcx_addr() const { | |
| 218 return (intptr_t*)addr_at(interpreter_frame_bcx_offset); | |
| 219 } | |
| 220 | |
| 221 | |
| 222 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
| 223 return (intptr_t*)addr_at(interpreter_frame_mdx_offset); | |
| 224 } | |
| 225 | |
| 226 | |
| 227 | |
| 228 // Constant pool cache | |
| 229 | |
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230 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { |
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231 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset); |
| 0 | 232 } |
| 233 | |
| 234 // Method | |
| 235 | |
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236 inline Method** frame::interpreter_frame_method_addr() const { |
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237 return (Method**)addr_at(interpreter_frame_method_offset); |
| 0 | 238 } |
| 239 | |
| 240 // top of expression stack | |
| 241 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
| 242 intptr_t* last_sp = interpreter_frame_last_sp(); | |
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243 if (last_sp == NULL) { |
| 0 | 244 return sp(); |
| 245 } else { | |
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246 // sp() may have been extended or shrunk by an adapter. At least |
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247 // check that we don't fall behind the legal region. |
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248 // For top deoptimized frame last_sp == interpreter_frame_monitor_end. |
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249 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); |
| 0 | 250 return last_sp; |
| 251 } | |
| 252 } | |
| 253 | |
| 17813 | 254 inline oop* frame::interpreter_frame_temp_oop_addr() const { |
| 255 return (oop *)(fp() + interpreter_frame_oop_temp_offset); | |
| 256 } | |
| 257 | |
| 0 | 258 #endif /* CC_INTERP */ |
| 259 | |
| 260 inline int frame::pd_oop_map_offset_adjustment() const { | |
| 261 return 0; | |
| 262 } | |
| 263 | |
| 264 inline int frame::interpreter_frame_monitor_size() { | |
| 265 return BasicObjectLock::size(); | |
| 266 } | |
| 267 | |
| 268 | |
| 269 // expression stack | |
| 270 // (the max_stack arguments are used by the GC; see class FrameClosure) | |
| 271 | |
| 272 inline intptr_t* frame::interpreter_frame_expression_stack() const { | |
| 273 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); | |
| 274 return monitor_end-1; | |
| 275 } | |
| 276 | |
| 277 | |
| 278 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } | |
| 279 | |
| 280 | |
| 281 // Entry frames | |
| 282 | |
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283 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const { |
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284 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset); |
| 0 | 285 } |
| 286 | |
| 287 // Compiled frames | |
| 288 | |
| 289 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
| 290 return (nof_args - local_index + (local_index < nof_args ? 1: -1)); | |
| 291 } | |
| 292 | |
| 293 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
| 294 return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors); | |
| 295 } | |
| 296 | |
| 297 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) { | |
| 298 return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1); | |
| 299 } | |
| 300 | |
| 301 inline bool frame::volatile_across_calls(Register reg) { | |
| 302 return true; | |
| 303 } | |
| 304 | |
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305 inline oop frame::saved_oop_result(RegisterMap* map) const { |
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306 oop* result_adr = (oop *)map->location(rax->as_VMReg()); |
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307 guarantee(result_adr != NULL, "bad register save location"); |
| 0 | 308 |
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309 return (*result_adr); |
| 0 | 310 } |
| 311 | |
| 312 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { | |
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313 oop* result_adr = (oop *)map->location(rax->as_VMReg()); |
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314 guarantee(result_adr != NULL, "bad register save location"); |
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315 |
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316 *result_adr = obj; |
| 0 | 317 } |
| 1972 | 318 |
| 319 #endif // CPU_X86_VM_FRAME_X86_INLINE_HPP |