Thu, 24 May 2018 19:24:53 +0800
#7046 Disable the compilation when branch offset is beyond short branch
Contributed-by: fujie, aoqi
aoqi@0 | 1 | /* |
dlong@7598 | 2 | * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@1 | 25 | /* |
aoqi@1 | 26 | * This file has been modified by Loongson Technology in 2015. These |
aoqi@1 | 27 | * modifications are Copyright (c) 2015 Loongson Technology, and are made |
aoqi@1 | 28 | * available on the same license terms set forth above. |
aoqi@1 | 29 | */ |
aoqi@1 | 30 | |
aoqi@0 | 31 | #ifndef SHARE_VM_RUNTIME_FRAME_HPP |
aoqi@0 | 32 | #define SHARE_VM_RUNTIME_FRAME_HPP |
aoqi@0 | 33 | |
aoqi@0 | 34 | #include "oops/method.hpp" |
aoqi@0 | 35 | #include "runtime/basicLock.hpp" |
aoqi@0 | 36 | #include "runtime/monitorChunk.hpp" |
aoqi@0 | 37 | #include "runtime/registerMap.hpp" |
aoqi@0 | 38 | #include "utilities/top.hpp" |
aoqi@0 | 39 | #ifdef COMPILER2 |
dlong@7598 | 40 | #if defined ADGLOBALS_MD_HPP |
dlong@7598 | 41 | # include ADGLOBALS_MD_HPP |
dlong@7598 | 42 | #elif defined TARGET_ARCH_MODEL_x86_32 |
aoqi@0 | 43 | # include "adfiles/adGlobals_x86_32.hpp" |
dlong@7598 | 44 | #elif defined TARGET_ARCH_MODEL_x86_64 |
aoqi@0 | 45 | # include "adfiles/adGlobals_x86_64.hpp" |
dlong@7598 | 46 | #elif defined TARGET_ARCH_MODEL_sparc |
aoqi@0 | 47 | # include "adfiles/adGlobals_sparc.hpp" |
dlong@7598 | 48 | #elif defined TARGET_ARCH_MODEL_zero |
aoqi@0 | 49 | # include "adfiles/adGlobals_zero.hpp" |
dlong@7598 | 50 | #elif defined TARGET_ARCH_MODEL_ppc_64 |
aoqi@0 | 51 | # include "adfiles/adGlobals_ppc_64.hpp" |
aoqi@7994 | 52 | #elif defined TARGET_ARCH_MODEL_mips_64 |
aoqi@1 | 53 | # include "adfiles/adGlobals_mips_64.hpp" |
aoqi@1 | 54 | #endif |
aoqi@0 | 55 | #endif // COMPILER2 |
aoqi@0 | 56 | #ifdef ZERO |
aoqi@0 | 57 | #ifdef TARGET_ARCH_zero |
aoqi@0 | 58 | # include "stack_zero.hpp" |
aoqi@0 | 59 | #endif |
aoqi@0 | 60 | #endif |
aoqi@0 | 61 | |
aoqi@0 | 62 | typedef class BytecodeInterpreter* interpreterState; |
aoqi@0 | 63 | |
aoqi@0 | 64 | class CodeBlob; |
aoqi@0 | 65 | class FrameValues; |
aoqi@0 | 66 | class vframeArray; |
aoqi@0 | 67 | |
aoqi@0 | 68 | |
aoqi@0 | 69 | // A frame represents a physical stack frame (an activation). Frames |
aoqi@0 | 70 | // can be C or Java frames, and the Java frames can be interpreted or |
aoqi@0 | 71 | // compiled. In contrast, vframes represent source-level activations, |
aoqi@0 | 72 | // so that one physical frame can correspond to multiple source level |
aoqi@0 | 73 | // frames because of inlining. |
aoqi@0 | 74 | |
aoqi@0 | 75 | class frame VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 76 | private: |
aoqi@0 | 77 | // Instance variables: |
aoqi@0 | 78 | intptr_t* _sp; // stack pointer (from Thread::last_Java_sp) |
aoqi@0 | 79 | address _pc; // program counter (the next instruction after the call) |
aoqi@0 | 80 | |
aoqi@0 | 81 | CodeBlob* _cb; // CodeBlob that "owns" pc |
aoqi@0 | 82 | enum deopt_state { |
aoqi@0 | 83 | not_deoptimized, |
aoqi@0 | 84 | is_deoptimized, |
aoqi@0 | 85 | unknown |
aoqi@0 | 86 | }; |
aoqi@0 | 87 | |
aoqi@0 | 88 | deopt_state _deopt_state; |
aoqi@0 | 89 | |
aoqi@0 | 90 | public: |
aoqi@0 | 91 | // Constructors |
aoqi@0 | 92 | frame(); |
aoqi@0 | 93 | |
simonis@7553 | 94 | #ifndef PRODUCT |
simonis@7553 | 95 | // This is a generic constructor which is only used by pns() in debug.cpp. |
simonis@7553 | 96 | // pns (i.e. print native stack) uses this constructor to create a starting |
simonis@7553 | 97 | // frame for stack walking. The implementation of this constructor is platform |
simonis@7553 | 98 | // dependent (i.e. SPARC doesn't need an 'fp' argument an will ignore it) but |
simonis@7553 | 99 | // we want to keep the signature generic because pns() is shared code. |
simonis@7553 | 100 | frame(void* sp, void* fp, void* pc); |
simonis@7553 | 101 | #endif |
simonis@7553 | 102 | |
aoqi@0 | 103 | // Accessors |
aoqi@0 | 104 | |
aoqi@0 | 105 | // pc: Returns the pc at which this frame will continue normally. |
aoqi@0 | 106 | // It must point at the beginning of the next instruction to execute. |
aoqi@0 | 107 | address pc() const { return _pc; } |
aoqi@0 | 108 | |
aoqi@0 | 109 | // This returns the pc that if you were in the debugger you'd see. Not |
aoqi@0 | 110 | // the idealized value in the frame object. This undoes the magic conversion |
aoqi@0 | 111 | // that happens for deoptimized frames. In addition it makes the value the |
aoqi@0 | 112 | // hardware would want to see in the native frame. The only user (at this point) |
aoqi@0 | 113 | // is deoptimization. It likely no one else should ever use it. |
aoqi@0 | 114 | address raw_pc() const; |
aoqi@0 | 115 | |
aoqi@0 | 116 | void set_pc( address newpc ); |
aoqi@0 | 117 | |
aoqi@0 | 118 | intptr_t* sp() const { return _sp; } |
aoqi@0 | 119 | void set_sp( intptr_t* newsp ) { _sp = newsp; } |
aoqi@0 | 120 | |
aoqi@0 | 121 | |
aoqi@0 | 122 | CodeBlob* cb() const { return _cb; } |
aoqi@0 | 123 | |
aoqi@0 | 124 | // patching operations |
aoqi@0 | 125 | void patch_pc(Thread* thread, address pc); |
aoqi@0 | 126 | |
aoqi@0 | 127 | // Every frame needs to return a unique id which distinguishes it from all other frames. |
aoqi@0 | 128 | // For sparc and ia32 use sp. ia64 can have memory frames that are empty so multiple frames |
aoqi@0 | 129 | // will have identical sp values. For ia64 the bsp (fp) value will serve. No real frame |
aoqi@0 | 130 | // should have an id() of NULL so it is a distinguishing value for an unmatchable frame. |
aoqi@0 | 131 | // We also have relationals which allow comparing a frame to anoth frame's id() allow |
aoqi@0 | 132 | // us to distinguish younger (more recent activation) from older (less recent activations) |
aoqi@0 | 133 | // A NULL id is only valid when comparing for equality. |
aoqi@0 | 134 | |
aoqi@0 | 135 | intptr_t* id(void) const; |
aoqi@0 | 136 | bool is_younger(intptr_t* id) const; |
aoqi@0 | 137 | bool is_older(intptr_t* id) const; |
aoqi@0 | 138 | |
aoqi@0 | 139 | // testers |
aoqi@0 | 140 | |
aoqi@0 | 141 | // Compares for strict equality. Rarely used or needed. |
aoqi@0 | 142 | // It can return a different result than f1.id() == f2.id() |
aoqi@0 | 143 | bool equal(frame other) const; |
aoqi@0 | 144 | |
aoqi@0 | 145 | // type testers |
aoqi@0 | 146 | bool is_interpreted_frame() const; |
aoqi@0 | 147 | bool is_java_frame() const; |
aoqi@0 | 148 | bool is_entry_frame() const; // Java frame called from C? |
aoqi@0 | 149 | bool is_stub_frame() const; |
aoqi@0 | 150 | bool is_ignored_frame() const; |
aoqi@0 | 151 | bool is_native_frame() const; |
aoqi@0 | 152 | bool is_runtime_frame() const; |
aoqi@0 | 153 | bool is_compiled_frame() const; |
aoqi@0 | 154 | bool is_safepoint_blob_frame() const; |
aoqi@0 | 155 | bool is_deoptimized_frame() const; |
aoqi@0 | 156 | |
aoqi@0 | 157 | // testers |
aoqi@0 | 158 | bool is_first_frame() const; // oldest frame? (has no sender) |
aoqi@0 | 159 | bool is_first_java_frame() const; // same for Java frame |
aoqi@0 | 160 | |
aoqi@0 | 161 | bool is_interpreted_frame_valid(JavaThread* thread) const; // performs sanity checks on interpreted frames. |
aoqi@0 | 162 | |
aoqi@0 | 163 | // tells whether this frame is marked for deoptimization |
aoqi@0 | 164 | bool should_be_deoptimized() const; |
aoqi@0 | 165 | |
aoqi@0 | 166 | // tells whether this frame can be deoptimized |
aoqi@0 | 167 | bool can_be_deoptimized() const; |
aoqi@0 | 168 | |
aoqi@0 | 169 | // returns the frame size in stack slots |
aoqi@0 | 170 | int frame_size(RegisterMap* map) const; |
aoqi@0 | 171 | |
aoqi@0 | 172 | // returns the sending frame |
aoqi@0 | 173 | frame sender(RegisterMap* map) const; |
aoqi@0 | 174 | |
aoqi@0 | 175 | // for Profiling - acting on another frame. walks sender frames |
aoqi@0 | 176 | // if valid. |
aoqi@0 | 177 | frame profile_find_Java_sender_frame(JavaThread *thread); |
aoqi@0 | 178 | bool safe_for_sender(JavaThread *thread); |
aoqi@0 | 179 | |
aoqi@0 | 180 | // returns the sender, but skips conversion frames |
aoqi@0 | 181 | frame real_sender(RegisterMap* map) const; |
aoqi@0 | 182 | |
aoqi@0 | 183 | // returns the the sending Java frame, skipping any intermediate C frames |
aoqi@0 | 184 | // NB: receiver must not be first frame |
aoqi@0 | 185 | frame java_sender() const; |
aoqi@0 | 186 | |
aoqi@0 | 187 | private: |
aoqi@0 | 188 | // Helper methods for better factored code in frame::sender |
aoqi@0 | 189 | frame sender_for_compiled_frame(RegisterMap* map) const; |
aoqi@0 | 190 | frame sender_for_entry_frame(RegisterMap* map) const; |
aoqi@0 | 191 | frame sender_for_interpreter_frame(RegisterMap* map) const; |
aoqi@0 | 192 | frame sender_for_native_frame(RegisterMap* map) const; |
aoqi@0 | 193 | |
aoqi@0 | 194 | // All frames: |
aoqi@0 | 195 | |
aoqi@0 | 196 | // A low-level interface for vframes: |
aoqi@0 | 197 | |
aoqi@0 | 198 | public: |
aoqi@0 | 199 | |
aoqi@0 | 200 | intptr_t* addr_at(int index) const { return &fp()[index]; } |
aoqi@0 | 201 | intptr_t at(int index) const { return *addr_at(index); } |
aoqi@0 | 202 | |
aoqi@0 | 203 | // accessors for locals |
aoqi@0 | 204 | oop obj_at(int offset) const { return *obj_at_addr(offset); } |
aoqi@0 | 205 | void obj_at_put(int offset, oop value) { *obj_at_addr(offset) = value; } |
aoqi@0 | 206 | |
aoqi@0 | 207 | jint int_at(int offset) const { return *int_at_addr(offset); } |
aoqi@0 | 208 | void int_at_put(int offset, jint value) { *int_at_addr(offset) = value; } |
aoqi@0 | 209 | |
aoqi@0 | 210 | oop* obj_at_addr(int offset) const { return (oop*) addr_at(offset); } |
aoqi@0 | 211 | |
aoqi@0 | 212 | oop* adjusted_obj_at_addr(Method* method, int index) { return obj_at_addr(adjust_offset(method, index)); } |
aoqi@0 | 213 | |
aoqi@0 | 214 | private: |
aoqi@0 | 215 | jint* int_at_addr(int offset) const { return (jint*) addr_at(offset); } |
aoqi@0 | 216 | |
aoqi@0 | 217 | public: |
aoqi@0 | 218 | // Link (i.e., the pointer to the previous frame) |
aoqi@0 | 219 | intptr_t* link() const; |
aoqi@0 | 220 | void set_link(intptr_t* addr); |
aoqi@0 | 221 | |
aoqi@0 | 222 | // Return address |
aoqi@0 | 223 | address sender_pc() const; |
aoqi@0 | 224 | |
aoqi@0 | 225 | // Support for deoptimization |
aoqi@0 | 226 | void deoptimize(JavaThread* thread); |
aoqi@0 | 227 | |
aoqi@0 | 228 | // The frame's original SP, before any extension by an interpreted callee; |
aoqi@0 | 229 | // used for packing debug info into vframeArray objects and vframeArray lookup. |
aoqi@0 | 230 | intptr_t* unextended_sp() const; |
aoqi@0 | 231 | |
aoqi@0 | 232 | // returns the stack pointer of the calling frame |
aoqi@0 | 233 | intptr_t* sender_sp() const; |
aoqi@0 | 234 | |
aoqi@0 | 235 | // Returns the real 'frame pointer' for the current frame. |
aoqi@0 | 236 | // This is the value expected by the platform ABI when it defines a |
aoqi@0 | 237 | // frame pointer register. It may differ from the effective value of |
aoqi@0 | 238 | // the FP register when that register is used in the JVM for other |
aoqi@0 | 239 | // purposes (like compiled frames on some platforms). |
aoqi@0 | 240 | // On other platforms, it is defined so that the stack area used by |
aoqi@0 | 241 | // this frame goes from real_fp() to sp(). |
aoqi@0 | 242 | intptr_t* real_fp() const; |
aoqi@0 | 243 | |
aoqi@0 | 244 | // Deoptimization info, if needed (platform dependent). |
aoqi@0 | 245 | // Stored in the initial_info field of the unroll info, to be used by |
aoqi@0 | 246 | // the platform dependent deoptimization blobs. |
aoqi@0 | 247 | intptr_t *initial_deoptimization_info(); |
aoqi@0 | 248 | |
aoqi@0 | 249 | // Interpreter frames: |
aoqi@0 | 250 | |
aoqi@0 | 251 | private: |
aoqi@0 | 252 | intptr_t** interpreter_frame_locals_addr() const; |
aoqi@0 | 253 | intptr_t* interpreter_frame_bcx_addr() const; |
aoqi@0 | 254 | intptr_t* interpreter_frame_mdx_addr() const; |
aoqi@0 | 255 | |
aoqi@0 | 256 | public: |
aoqi@0 | 257 | // Locals |
aoqi@0 | 258 | |
aoqi@0 | 259 | // The _at version returns a pointer because the address is used for GC. |
aoqi@0 | 260 | intptr_t* interpreter_frame_local_at(int index) const; |
aoqi@0 | 261 | |
aoqi@0 | 262 | void interpreter_frame_set_locals(intptr_t* locs); |
aoqi@0 | 263 | |
aoqi@0 | 264 | // byte code index/pointer (use these functions for unchecked frame access only!) |
aoqi@0 | 265 | intptr_t interpreter_frame_bcx() const { return *interpreter_frame_bcx_addr(); } |
aoqi@0 | 266 | void interpreter_frame_set_bcx(intptr_t bcx); |
aoqi@0 | 267 | |
aoqi@0 | 268 | // byte code index |
aoqi@0 | 269 | jint interpreter_frame_bci() const; |
aoqi@0 | 270 | void interpreter_frame_set_bci(jint bci); |
aoqi@0 | 271 | |
aoqi@0 | 272 | // byte code pointer |
aoqi@0 | 273 | address interpreter_frame_bcp() const; |
aoqi@0 | 274 | void interpreter_frame_set_bcp(address bcp); |
aoqi@0 | 275 | |
aoqi@0 | 276 | // Unchecked access to the method data index/pointer. |
aoqi@0 | 277 | // Only use this if you know what you are doing. |
aoqi@0 | 278 | intptr_t interpreter_frame_mdx() const { return *interpreter_frame_mdx_addr(); } |
aoqi@0 | 279 | void interpreter_frame_set_mdx(intptr_t mdx); |
aoqi@0 | 280 | |
aoqi@0 | 281 | // method data pointer |
aoqi@0 | 282 | address interpreter_frame_mdp() const; |
aoqi@0 | 283 | void interpreter_frame_set_mdp(address dp); |
aoqi@0 | 284 | |
aoqi@0 | 285 | // Find receiver out of caller's (compiled) argument list |
aoqi@0 | 286 | oop retrieve_receiver(RegisterMap *reg_map); |
aoqi@0 | 287 | |
aoqi@0 | 288 | // Return the monitor owner and BasicLock for compiled synchronized |
aoqi@0 | 289 | // native methods so that biased locking can revoke the receiver's |
aoqi@0 | 290 | // bias if necessary. This is also used by JVMTI's GetLocalInstance method |
aoqi@0 | 291 | // (via VM_GetReceiver) to retrieve the receiver from a native wrapper frame. |
aoqi@0 | 292 | BasicLock* get_native_monitor(); |
aoqi@0 | 293 | oop get_native_receiver(); |
aoqi@0 | 294 | |
aoqi@0 | 295 | // Find receiver for an invoke when arguments are just pushed on stack (i.e., callee stack-frame is |
aoqi@0 | 296 | // not setup) |
aoqi@0 | 297 | oop interpreter_callee_receiver(Symbol* signature) { return *interpreter_callee_receiver_addr(signature); } |
aoqi@0 | 298 | |
aoqi@0 | 299 | |
aoqi@0 | 300 | oop* interpreter_callee_receiver_addr(Symbol* signature); |
aoqi@0 | 301 | |
aoqi@0 | 302 | |
aoqi@0 | 303 | // expression stack (may go up or down, direction == 1 or -1) |
aoqi@0 | 304 | public: |
aoqi@0 | 305 | intptr_t* interpreter_frame_expression_stack() const; |
aoqi@0 | 306 | static jint interpreter_frame_expression_stack_direction(); |
aoqi@0 | 307 | |
aoqi@0 | 308 | // The _at version returns a pointer because the address is used for GC. |
aoqi@0 | 309 | intptr_t* interpreter_frame_expression_stack_at(jint offset) const; |
aoqi@0 | 310 | |
aoqi@0 | 311 | // top of expression stack |
aoqi@0 | 312 | intptr_t* interpreter_frame_tos_at(jint offset) const; |
aoqi@0 | 313 | intptr_t* interpreter_frame_tos_address() const; |
aoqi@0 | 314 | |
aoqi@0 | 315 | |
aoqi@0 | 316 | jint interpreter_frame_expression_stack_size() const; |
aoqi@0 | 317 | |
aoqi@0 | 318 | intptr_t* interpreter_frame_sender_sp() const; |
aoqi@0 | 319 | |
aoqi@0 | 320 | #ifndef CC_INTERP |
aoqi@0 | 321 | // template based interpreter deoptimization support |
aoqi@0 | 322 | void set_interpreter_frame_sender_sp(intptr_t* sender_sp); |
aoqi@0 | 323 | void interpreter_frame_set_monitor_end(BasicObjectLock* value); |
aoqi@0 | 324 | #endif // CC_INTERP |
aoqi@0 | 325 | |
aoqi@0 | 326 | // Address of the temp oop in the frame. Needed as GC root. |
aoqi@0 | 327 | oop* interpreter_frame_temp_oop_addr() const; |
aoqi@0 | 328 | |
aoqi@0 | 329 | // BasicObjectLocks: |
aoqi@0 | 330 | // |
aoqi@0 | 331 | // interpreter_frame_monitor_begin is higher in memory than interpreter_frame_monitor_end |
aoqi@0 | 332 | // Interpreter_frame_monitor_begin points to one element beyond the oldest one, |
aoqi@0 | 333 | // interpreter_frame_monitor_end points to the youngest one, or if there are none, |
aoqi@0 | 334 | // it points to one beyond where the first element will be. |
aoqi@0 | 335 | // interpreter_frame_monitor_size reports the allocation size of a monitor in the interpreter stack. |
aoqi@0 | 336 | // this value is >= BasicObjectLock::size(), and may be rounded up |
aoqi@0 | 337 | |
aoqi@0 | 338 | BasicObjectLock* interpreter_frame_monitor_begin() const; |
aoqi@0 | 339 | BasicObjectLock* interpreter_frame_monitor_end() const; |
aoqi@0 | 340 | BasicObjectLock* next_monitor_in_interpreter_frame(BasicObjectLock* current) const; |
aoqi@0 | 341 | BasicObjectLock* previous_monitor_in_interpreter_frame(BasicObjectLock* current) const; |
aoqi@0 | 342 | static int interpreter_frame_monitor_size(); |
aoqi@0 | 343 | |
aoqi@0 | 344 | void interpreter_frame_verify_monitor(BasicObjectLock* value) const; |
aoqi@0 | 345 | |
aoqi@0 | 346 | // Tells whether the current interpreter_frame frame pointer |
aoqi@0 | 347 | // corresponds to the old compiled/deoptimized fp |
aoqi@0 | 348 | // The receiver used to be a top level frame |
aoqi@0 | 349 | bool interpreter_frame_equals_unpacked_fp(intptr_t* fp); |
aoqi@0 | 350 | |
aoqi@0 | 351 | // Return/result value from this interpreter frame |
aoqi@0 | 352 | // If the method return type is T_OBJECT or T_ARRAY populates oop_result |
aoqi@0 | 353 | // For other (non-T_VOID) the appropriate field in the jvalue is populated |
aoqi@0 | 354 | // with the result value. |
aoqi@0 | 355 | // Should only be called when at method exit when the method is not |
aoqi@0 | 356 | // exiting due to an exception. |
aoqi@0 | 357 | BasicType interpreter_frame_result(oop* oop_result, jvalue* value_result); |
aoqi@0 | 358 | |
aoqi@0 | 359 | public: |
aoqi@0 | 360 | // Method & constant pool cache |
aoqi@0 | 361 | Method* interpreter_frame_method() const; |
aoqi@0 | 362 | void interpreter_frame_set_method(Method* method); |
aoqi@0 | 363 | Method** interpreter_frame_method_addr() const; |
aoqi@0 | 364 | ConstantPoolCache** interpreter_frame_cache_addr() const; |
aoqi@0 | 365 | |
aoqi@0 | 366 | public: |
aoqi@0 | 367 | // Entry frames |
aoqi@0 | 368 | JavaCallWrapper* entry_frame_call_wrapper() const { return *entry_frame_call_wrapper_addr(); } |
aoqi@0 | 369 | JavaCallWrapper* entry_frame_call_wrapper_if_safe(JavaThread* thread) const; |
aoqi@0 | 370 | JavaCallWrapper** entry_frame_call_wrapper_addr() const; |
aoqi@0 | 371 | intptr_t* entry_frame_argument_at(int offset) const; |
aoqi@0 | 372 | |
aoqi@0 | 373 | // tells whether there is another chunk of Delta stack above |
aoqi@0 | 374 | bool entry_frame_is_first() const; |
aoqi@0 | 375 | |
aoqi@0 | 376 | // Compiled frames: |
aoqi@0 | 377 | |
aoqi@0 | 378 | public: |
aoqi@0 | 379 | // Given the index of a local, and the number of argument words |
aoqi@0 | 380 | // in this stack frame, tell which word of the stack frame to find |
aoqi@0 | 381 | // the local in. Arguments are stored above the ofp/rpc pair, |
aoqi@0 | 382 | // while other locals are stored below it. |
aoqi@0 | 383 | // Since monitors (BasicLock blocks) are also assigned indexes, |
aoqi@0 | 384 | // but may have different storage requirements, their presence |
aoqi@0 | 385 | // can also affect the calculation of offsets. |
aoqi@0 | 386 | static int local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors); |
aoqi@0 | 387 | |
aoqi@0 | 388 | // Given the index of a monitor, etc., tell which word of the |
aoqi@0 | 389 | // stack frame contains the start of the BasicLock block. |
aoqi@0 | 390 | // Note that the local index by convention is the __higher__ |
aoqi@0 | 391 | // of the two indexes allocated to the block. |
aoqi@0 | 392 | static int monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors); |
aoqi@0 | 393 | |
aoqi@0 | 394 | // Tell the smallest value that local_offset_for_compiler will attain. |
aoqi@0 | 395 | // This is used to help determine how much stack frame to allocate. |
aoqi@0 | 396 | static int min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors); |
aoqi@0 | 397 | |
aoqi@0 | 398 | // Tells if this register must be spilled during a call. |
aoqi@0 | 399 | // On Intel, all registers are smashed by calls. |
aoqi@0 | 400 | static bool volatile_across_calls(Register reg); |
aoqi@0 | 401 | |
aoqi@0 | 402 | |
aoqi@0 | 403 | // Safepoints |
aoqi@0 | 404 | |
aoqi@0 | 405 | public: |
aoqi@0 | 406 | oop saved_oop_result(RegisterMap* map) const; |
aoqi@0 | 407 | void set_saved_oop_result(RegisterMap* map, oop obj); |
aoqi@0 | 408 | |
aoqi@0 | 409 | // For debugging |
aoqi@0 | 410 | private: |
aoqi@0 | 411 | const char* print_name() const; |
aoqi@0 | 412 | |
aoqi@0 | 413 | void describe_pd(FrameValues& values, int frame_no); |
aoqi@0 | 414 | |
aoqi@0 | 415 | public: |
aoqi@0 | 416 | void print_value() const { print_value_on(tty,NULL); } |
aoqi@0 | 417 | void print_value_on(outputStream* st, JavaThread *thread) const; |
aoqi@0 | 418 | void print_on(outputStream* st) const; |
aoqi@0 | 419 | void interpreter_frame_print_on(outputStream* st) const; |
aoqi@0 | 420 | void print_on_error(outputStream* st, char* buf, int buflen, bool verbose = false) const; |
aoqi@0 | 421 | static void print_C_frame(outputStream* st, char* buf, int buflen, address pc); |
aoqi@0 | 422 | |
aoqi@0 | 423 | // Add annotated descriptions of memory locations belonging to this frame to values |
aoqi@0 | 424 | void describe(FrameValues& values, int frame_no); |
aoqi@0 | 425 | |
aoqi@0 | 426 | // Conversion from an VMReg to physical stack location |
aoqi@0 | 427 | oop* oopmapreg_to_location(VMReg reg, const RegisterMap* regmap) const; |
aoqi@0 | 428 | |
aoqi@0 | 429 | // Oops-do's |
aoqi@0 | 430 | void oops_compiled_arguments_do(Symbol* signature, bool has_receiver, bool has_appendix, const RegisterMap* reg_map, OopClosure* f); |
stefank@6973 | 431 | void oops_interpreted_do(OopClosure* f, CLDClosure* cld_f, const RegisterMap* map, bool query_oop_map_cache = true); |
aoqi@0 | 432 | |
aoqi@0 | 433 | private: |
aoqi@0 | 434 | void oops_interpreted_arguments_do(Symbol* signature, bool has_receiver, OopClosure* f); |
aoqi@0 | 435 | |
aoqi@0 | 436 | // Iteration of oops |
stefank@6973 | 437 | void oops_do_internal(OopClosure* f, CLDClosure* cld_f, CodeBlobClosure* cf, RegisterMap* map, bool use_interpreter_oop_map_cache); |
aoqi@0 | 438 | void oops_entry_do(OopClosure* f, const RegisterMap* map); |
aoqi@0 | 439 | void oops_code_blob_do(OopClosure* f, CodeBlobClosure* cf, const RegisterMap* map); |
aoqi@0 | 440 | int adjust_offset(Method* method, int index); // helper for above fn |
aoqi@0 | 441 | public: |
aoqi@0 | 442 | // Memory management |
stefank@6973 | 443 | void oops_do(OopClosure* f, CLDClosure* cld_f, CodeBlobClosure* cf, RegisterMap* map) { oops_do_internal(f, cld_f, cf, map, true); } |
aoqi@0 | 444 | void nmethods_do(CodeBlobClosure* cf); |
aoqi@0 | 445 | |
aoqi@0 | 446 | // RedefineClasses support for finding live interpreted methods on the stack |
aoqi@0 | 447 | void metadata_do(void f(Metadata*)); |
aoqi@0 | 448 | |
aoqi@0 | 449 | void gc_prologue(); |
aoqi@0 | 450 | void gc_epilogue(); |
aoqi@0 | 451 | void pd_gc_epilog(); |
aoqi@0 | 452 | |
aoqi@0 | 453 | # ifdef ENABLE_ZAP_DEAD_LOCALS |
aoqi@0 | 454 | private: |
aoqi@0 | 455 | class CheckValueClosure: public OopClosure { |
aoqi@0 | 456 | public: |
aoqi@0 | 457 | void do_oop(oop* p); |
aoqi@0 | 458 | void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
aoqi@0 | 459 | }; |
aoqi@0 | 460 | static CheckValueClosure _check_value; |
aoqi@0 | 461 | |
aoqi@0 | 462 | class CheckOopClosure: public OopClosure { |
aoqi@0 | 463 | public: |
aoqi@0 | 464 | void do_oop(oop* p); |
aoqi@0 | 465 | void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
aoqi@0 | 466 | }; |
aoqi@0 | 467 | static CheckOopClosure _check_oop; |
aoqi@0 | 468 | |
aoqi@0 | 469 | static void check_derived_oop(oop* base, oop* derived); |
aoqi@0 | 470 | |
aoqi@0 | 471 | class ZapDeadClosure: public OopClosure { |
aoqi@0 | 472 | public: |
aoqi@0 | 473 | void do_oop(oop* p); |
aoqi@0 | 474 | void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
aoqi@0 | 475 | }; |
aoqi@0 | 476 | static ZapDeadClosure _zap_dead; |
aoqi@0 | 477 | |
aoqi@0 | 478 | public: |
aoqi@0 | 479 | // Zapping |
aoqi@0 | 480 | void zap_dead_locals (JavaThread* thread, const RegisterMap* map); |
aoqi@0 | 481 | void zap_dead_interpreted_locals(JavaThread* thread, const RegisterMap* map); |
aoqi@0 | 482 | void zap_dead_compiled_locals (JavaThread* thread, const RegisterMap* map); |
aoqi@0 | 483 | void zap_dead_entry_locals (JavaThread* thread, const RegisterMap* map); |
aoqi@0 | 484 | void zap_dead_deoptimized_locals(JavaThread* thread, const RegisterMap* map); |
aoqi@0 | 485 | # endif |
aoqi@0 | 486 | // Verification |
aoqi@0 | 487 | void verify(const RegisterMap* map); |
aoqi@0 | 488 | static bool verify_return_pc(address x); |
aoqi@0 | 489 | static bool is_bci(intptr_t bcx); |
aoqi@0 | 490 | // Usage: |
aoqi@0 | 491 | // assert(frame::verify_return_pc(return_address), "must be a return pc"); |
aoqi@0 | 492 | |
aoqi@0 | 493 | int pd_oop_map_offset_adjustment() const; |
aoqi@0 | 494 | |
aoqi@0 | 495 | #ifdef TARGET_ARCH_x86 |
aoqi@0 | 496 | # include "frame_x86.hpp" |
aoqi@0 | 497 | #endif |
aoqi@1 | 498 | #ifdef TARGET_ARCH_mips |
aoqi@1 | 499 | # include "frame_mips.hpp" |
aoqi@1 | 500 | #endif |
aoqi@0 | 501 | #ifdef TARGET_ARCH_sparc |
aoqi@0 | 502 | # include "frame_sparc.hpp" |
aoqi@0 | 503 | #endif |
aoqi@0 | 504 | #ifdef TARGET_ARCH_zero |
aoqi@0 | 505 | # include "frame_zero.hpp" |
aoqi@0 | 506 | #endif |
aoqi@0 | 507 | #ifdef TARGET_ARCH_arm |
aoqi@0 | 508 | # include "frame_arm.hpp" |
aoqi@0 | 509 | #endif |
aoqi@0 | 510 | #ifdef TARGET_ARCH_ppc |
aoqi@0 | 511 | # include "frame_ppc.hpp" |
aoqi@0 | 512 | #endif |
aoqi@0 | 513 | |
aoqi@0 | 514 | }; |
aoqi@0 | 515 | |
aoqi@0 | 516 | #ifndef PRODUCT |
aoqi@0 | 517 | // A simple class to describe a location on the stack |
aoqi@0 | 518 | class FrameValue VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 519 | public: |
aoqi@0 | 520 | intptr_t* location; |
aoqi@0 | 521 | char* description; |
aoqi@0 | 522 | int owner; |
aoqi@0 | 523 | int priority; |
aoqi@0 | 524 | }; |
aoqi@0 | 525 | |
aoqi@0 | 526 | |
aoqi@0 | 527 | // A collection of described stack values that can print a symbolic |
aoqi@0 | 528 | // description of the stack memory. Interpreter frame values can be |
aoqi@0 | 529 | // in the caller frames so all the values are collected first and then |
aoqi@0 | 530 | // sorted before being printed. |
aoqi@0 | 531 | class FrameValues { |
aoqi@0 | 532 | private: |
aoqi@0 | 533 | GrowableArray<FrameValue> _values; |
aoqi@0 | 534 | |
aoqi@0 | 535 | static int compare(FrameValue* a, FrameValue* b) { |
aoqi@0 | 536 | if (a->location == b->location) { |
aoqi@0 | 537 | return a->priority - b->priority; |
aoqi@0 | 538 | } |
aoqi@0 | 539 | return a->location - b->location; |
aoqi@0 | 540 | } |
aoqi@0 | 541 | |
aoqi@0 | 542 | public: |
aoqi@0 | 543 | // Used by frame functions to describe locations. |
aoqi@0 | 544 | void describe(int owner, intptr_t* location, const char* description, int priority = 0); |
aoqi@0 | 545 | |
aoqi@0 | 546 | #ifdef ASSERT |
aoqi@0 | 547 | void validate(); |
aoqi@0 | 548 | #endif |
aoqi@0 | 549 | void print(JavaThread* thread); |
aoqi@0 | 550 | }; |
aoqi@0 | 551 | |
aoqi@0 | 552 | #endif |
aoqi@0 | 553 | |
aoqi@0 | 554 | // |
aoqi@0 | 555 | // StackFrameStream iterates through the frames of a thread starting from |
aoqi@0 | 556 | // top most frame. It automatically takes care of updating the location of |
aoqi@0 | 557 | // all (callee-saved) registers. Notice: If a thread is stopped at |
aoqi@0 | 558 | // a safepoint, all registers are saved, not only the callee-saved ones. |
aoqi@0 | 559 | // |
aoqi@0 | 560 | // Use: |
aoqi@0 | 561 | // |
aoqi@0 | 562 | // for(StackFrameStream fst(thread); !fst.is_done(); fst.next()) { |
aoqi@0 | 563 | // ... |
aoqi@0 | 564 | // } |
aoqi@0 | 565 | // |
aoqi@0 | 566 | class StackFrameStream : public StackObj { |
aoqi@0 | 567 | private: |
aoqi@0 | 568 | frame _fr; |
aoqi@0 | 569 | RegisterMap _reg_map; |
aoqi@0 | 570 | bool _is_done; |
aoqi@0 | 571 | public: |
aoqi@0 | 572 | StackFrameStream(JavaThread *thread, bool update = true); |
aoqi@0 | 573 | |
aoqi@0 | 574 | // Iteration |
aoqi@0 | 575 | bool is_done() { return (_is_done) ? true : (_is_done = _fr.is_first_frame(), false); } |
aoqi@0 | 576 | void next() { if (!_is_done) _fr = _fr.sender(&_reg_map); } |
aoqi@0 | 577 | |
aoqi@0 | 578 | // Query |
aoqi@0 | 579 | frame *current() { return &_fr; } |
aoqi@0 | 580 | RegisterMap* register_map() { return &_reg_map; } |
aoqi@0 | 581 | }; |
aoqi@0 | 582 | |
aoqi@0 | 583 | #endif // SHARE_VM_RUNTIME_FRAME_HPP |