jdk8-mips64-public/hotspot: src/cpu/zero/vm/frame

8005817: Shark: implement deoptimization support
Reviewed-by: twisti
Contributed-by: Roman Kennke <rkennke@redhat.com>

     1 /*

     2  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "code/scopeDesc.hpp"

    28 #include "interpreter/interpreter.hpp"

    29 #include "interpreter/interpreterRuntime.hpp"

    30 #include "memory/resourceArea.hpp"

    31 #include "oops/markOop.hpp"

    32 #include "oops/method.hpp"

    33 #include "oops/oop.inline.hpp"

    34 #include "runtime/frame.inline.hpp"

    35 #include "runtime/handles.inline.hpp"

    36 #include "runtime/javaCalls.hpp"

    37 #include "runtime/monitorChunk.hpp"

    38 #include "runtime/signature.hpp"

    39 #include "runtime/stubCodeGenerator.hpp"

    40 #include "runtime/stubRoutines.hpp"

    41 #include "vmreg_zero.inline.hpp"

    42 #ifdef COMPILER1

    43 #include "c1/c1_Runtime1.hpp"

    44 #include "runtime/vframeArray.hpp"

    45 #endif

    47 #ifdef ASSERT

    48 void RegisterMap::check_location_valid() {

    49   ShouldNotCallThis();

    50 }

    51 #endif

    53 bool frame::is_interpreted_frame() const {

    54   return zeroframe()->is_interpreter_frame();

    55 }

    57 bool frame::is_fake_stub_frame() const {

    58   return zeroframe()->is_fake_stub_frame();

    59 }

    61 frame frame::sender_for_entry_frame(RegisterMap *map) const {

    62   assert(zeroframe()->is_entry_frame(), "wrong type of frame");

    63   assert(map != NULL, "map must be set");

    64   assert(!entry_frame_is_first(), "next Java fp must be non zero");

    65   assert(entry_frame_call_wrapper()->anchor()->last_Java_sp() == sender_sp(),

    66          "sender should be next Java frame");

    67   map->clear();

    68   assert(map->include_argument_oops(), "should be set by clear");

    69   return frame(zeroframe()->next(), sender_sp());

    70 }

    72 frame frame::sender_for_nonentry_frame(RegisterMap *map) const {

    73   assert(zeroframe()->is_interpreter_frame() ||

    74          zeroframe()->is_shark_frame() ||

    75          zeroframe()->is_fake_stub_frame(), "wrong type of frame");

    76   return frame(zeroframe()->next(), sender_sp());

    77 }

    79 frame frame::sender(RegisterMap* map) const {

    80   // Default is not to follow arguments; the various

    81   // sender_for_xxx methods update this accordingly.

    82   map->set_include_argument_oops(false);

    84   if (is_entry_frame())

    85     return sender_for_entry_frame(map);

    86   else

    87     return sender_for_nonentry_frame(map);

    88 }

    90 #ifdef CC_INTERP

    91 BasicObjectLock* frame::interpreter_frame_monitor_begin() const {

    92   return get_interpreterState()->monitor_base();

    93 }

    95 BasicObjectLock* frame::interpreter_frame_monitor_end() const {

    96   return (BasicObjectLock*) get_interpreterState()->stack_base();

    97 }

    98 #endif // CC_INTERP

   100 void frame::patch_pc(Thread* thread, address pc) {

   102   if (pc != NULL) {

   103     _cb = CodeCache::find_blob(pc);

   104     SharkFrame* sharkframe = zeroframe()->as_shark_frame();

   105     sharkframe->set_pc(pc);

   106     _pc = pc;

   107     _deopt_state = is_deoptimized;

   109   } else {

   110     // We borrow this call to set the thread pointer in the interpreter

   111     // state; the hook to set up deoptimized frames isn't supplied it.

   112     assert(pc == NULL, "should be");

   113     get_interpreterState()->set_thread((JavaThread *) thread);

   114   }

   115 }

   117 bool frame::safe_for_sender(JavaThread *thread) {

   118   ShouldNotCallThis();

   119 }

   121 void frame::pd_gc_epilog() {

   122 }

   124 bool frame::is_interpreted_frame_valid(JavaThread *thread) const {

   125   ShouldNotCallThis();

   126 }

   128 BasicType frame::interpreter_frame_result(oop* oop_result,

   129                                           jvalue* value_result) {

   130   assert(is_interpreted_frame(), "interpreted frame expected");

   131   Method* method = interpreter_frame_method();

   132   BasicType type = method->result_type();

   133   intptr_t* tos_addr = (intptr_t *) interpreter_frame_tos_address();

   134   oop obj;

   136   switch (type) {

   137   case T_VOID:

   138     break;

   139   case T_BOOLEAN:

   140     value_result->z = *(jboolean *) tos_addr;

   141     break;

   142   case T_BYTE:

   143     value_result->b = *(jbyte *) tos_addr;

   144     break;

   145   case T_CHAR:

   146     value_result->c = *(jchar *) tos_addr;

   147     break;

   148   case T_SHORT:

   149     value_result->s = *(jshort *) tos_addr;

   150     break;

   151   case T_INT:

   152     value_result->i = *(jint *) tos_addr;

   153     break;

   154   case T_LONG:

   155     value_result->j = *(jlong *) tos_addr;

   156     break;

   157   case T_FLOAT:

   158     value_result->f = *(jfloat *) tos_addr;

   159     break;

   160   case T_DOUBLE:

   161     value_result->d = *(jdouble *) tos_addr;

   162     break;

   164   case T_OBJECT:

   165   case T_ARRAY:

   166     if (method->is_native()) {

   167       obj = get_interpreterState()->oop_temp();

   168     }

   169     else {

   170       oop* obj_p = (oop *) tos_addr;

   171       obj = (obj_p == NULL) ? (oop) NULL : *obj_p;

   172     }

   173     assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check");

   174     *oop_result = obj;

   175     break;

   177   default:

   178     ShouldNotReachHere();

   179   }

   181   return type;

   182 }

   184 int frame::frame_size(RegisterMap* map) const {

   185 #ifdef PRODUCT

   186   ShouldNotCallThis();

   187 #else

   188   return 0; // make javaVFrame::print_value work

   189 #endif // PRODUCT

   190 }

   192 intptr_t* frame::interpreter_frame_tos_at(jint offset) const {

   193   int index = (Interpreter::expr_offset_in_bytes(offset) / wordSize);

   194   return &interpreter_frame_tos_address()[index];

   195 }

   197 void frame::zero_print_on_error(int           frame_index,

   198                                 outputStream* st,

   199                                 char*         buf,

   200                                 int           buflen) const {

   201   // Divide the buffer between the field and the value

   202   buflen >>= 1;

   203   char *fieldbuf = buf;

   204   char *valuebuf = buf + buflen;

   206   // Print each word of the frame

   207   for (intptr_t *addr = sp(); addr <= fp(); addr++) {

   208     int offset = fp() - addr;

   210     // Fill in default values, then try and improve them

   211     snprintf(fieldbuf, buflen, "word[%d]", offset);

   212     snprintf(valuebuf, buflen, PTR_FORMAT, *addr);

   213     zeroframe()->identify_word(frame_index, offset, fieldbuf, valuebuf, buflen);

   214     fieldbuf[buflen - 1] = '\0';

   215     valuebuf[buflen - 1] = '\0';

   217     // Print the result

   218     st->print_cr(" " PTR_FORMAT ": %-21s = %s", addr, fieldbuf, valuebuf);

   219   }

   220 }

   222 void ZeroFrame::identify_word(int   frame_index,

   223                               int   offset,

   224                               char* fieldbuf,

   225                               char* valuebuf,

   226                               int   buflen) const {

   227   switch (offset) {

   228   case next_frame_off:

   229     strncpy(fieldbuf, "next_frame", buflen);

   230     break;

   232   case frame_type_off:

   233     strncpy(fieldbuf, "frame_type", buflen);

   234     if (is_entry_frame())

   235       strncpy(valuebuf, "ENTRY_FRAME", buflen);

   236     else if (is_interpreter_frame())

   237       strncpy(valuebuf, "INTERPRETER_FRAME", buflen);

   238     else if (is_shark_frame())

   239       strncpy(valuebuf, "SHARK_FRAME", buflen);

   240     else if (is_fake_stub_frame())

   241       strncpy(valuebuf, "FAKE_STUB_FRAME", buflen);

   242     break;

   244   default:

   245     if (is_entry_frame()) {

   246       as_entry_frame()->identify_word(

   247         frame_index, offset, fieldbuf, valuebuf, buflen);

   248     }

   249     else if (is_interpreter_frame()) {

   250       as_interpreter_frame()->identify_word(

   251         frame_index, offset, fieldbuf, valuebuf, buflen);

   252     }

   253     else if (is_shark_frame()) {

   254       as_shark_frame()->identify_word(

   255         frame_index, offset, fieldbuf, valuebuf, buflen);

   256     }

   257     else if (is_fake_stub_frame()) {

   258       as_fake_stub_frame()->identify_word(

   259         frame_index, offset, fieldbuf, valuebuf, buflen);

   260     }

   261   }

   262 }

   264 void EntryFrame::identify_word(int   frame_index,

   265                                int   offset,

   266                                char* fieldbuf,

   267                                char* valuebuf,

   268                                int   buflen) const {

   269   switch (offset) {

   270   case call_wrapper_off:

   271     strncpy(fieldbuf, "call_wrapper", buflen);

   272     break;

   274   default:

   275     snprintf(fieldbuf, buflen, "local[%d]", offset - 3);

   276   }

   277 }

   279 void InterpreterFrame::identify_word(int   frame_index,

   280                                      int   offset,

   281                                      char* fieldbuf,

   282                                      char* valuebuf,

   283                                      int   buflen) const {

   284   interpreterState istate = interpreter_state();

   285   bool is_valid = istate->self_link() == istate;

   286   intptr_t *addr = addr_of_word(offset);

   288   // Fixed part

   289   if (addr >= (intptr_t *) istate) {

   290     const char *field = istate->name_of_field_at_address((address) addr);

   291     if (field) {

   292       if (is_valid && !strcmp(field, "_method")) {

   293         istate->method()->name_and_sig_as_C_string(valuebuf, buflen);

   294       }

   295       else if (is_valid && !strcmp(field, "_bcp") && istate->bcp()) {

   296         snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)",

   297                  (intptr_t) istate->bcp(),

   298                  istate->method()->bci_from(istate->bcp()));

   299       }

   300       snprintf(fieldbuf, buflen, "%sistate->%s",

   301                field[strlen(field) - 1] == ')' ? "(": "", field);

   302     }

   303     else if (addr == (intptr_t *) istate) {

   304       strncpy(fieldbuf, "(vtable for istate)", buflen);

   305     }

   306     return;

   307   }

   309   // Variable part

   310   if (!is_valid)

   311     return;

   313   // JNI stuff

   314   if (istate->method()->is_native() && addr < istate->stack_base()) {

   315     address hA = istate->method()->signature_handler();

   316     if (hA != NULL) {

   317       if (hA != (address) InterpreterRuntime::slow_signature_handler) {

   318         InterpreterRuntime::SignatureHandler *handler =

   319           InterpreterRuntime::SignatureHandler::from_handlerAddr(hA);

   321         intptr_t *params = istate->stack_base() - handler->argument_count();

   322         if (addr >= params) {

   323           int param = addr - params;

   324           const char *desc = "";

   325           if (param == 0)

   326             desc = " (JNIEnv)";

   327           else if (param == 1) {

   328             if (istate->method()->is_static())

   329               desc = " (mirror)";

   330             else

   331               desc = " (this)";

   332           }

   333           snprintf(fieldbuf, buflen, "parameter[%d]%s", param, desc);

   334           return;

   335         }

   337         for (int i = 0; i < handler->argument_count(); i++) {

   338           if (params[i] == (intptr_t) addr) {

   339             snprintf(fieldbuf, buflen, "unboxed parameter[%d]", i);

   340             return;

   341           }

   342         }

   343       }

   344     }

   345     return;

   346   }

   348   // Monitors and stack

   349   identify_vp_word(frame_index, addr,

   350                    (intptr_t *) istate->monitor_base(),

   351                    istate->stack_base(),

   352                    fieldbuf, buflen);

   353 }

   355 void SharkFrame::identify_word(int   frame_index,

   356                                int   offset,

   357                                char* fieldbuf,

   358                                char* valuebuf,

   359                                int   buflen) const {

   360   // Fixed part

   361   switch (offset) {

   362   case pc_off:

   363     strncpy(fieldbuf, "pc", buflen);

   364     if (method()->is_method()) {

   365       nmethod *code = method()->code();

   366       if (code && code->pc_desc_at(pc())) {

   367         SimpleScopeDesc ssd(code, pc());

   368         snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)",

   369                  (intptr_t) pc(), ssd.bci());

   370       }

   371     }

   372     return;

   374   case unextended_sp_off:

   375     strncpy(fieldbuf, "unextended_sp", buflen);

   376     return;

   378   case method_off:

   379     strncpy(fieldbuf, "method", buflen);

   380     if (method()->is_method()) {

   381       method()->name_and_sig_as_C_string(valuebuf, buflen);

   382     }

   383     return;

   385   case oop_tmp_off:

   386     strncpy(fieldbuf, "oop_tmp", buflen);

   387     return;

   388   }

   390   // Variable part

   391   if (method()->is_method()) {

   392     identify_vp_word(frame_index, addr_of_word(offset),

   393                      addr_of_word(header_words + 1),

   394                      unextended_sp() + method()->max_stack(),

   395                      fieldbuf, buflen);

   396   }

   397 }

   399 void ZeroFrame::identify_vp_word(int       frame_index,

   400                                  intptr_t* addr,

   401                                  intptr_t* monitor_base,

   402                                  intptr_t* stack_base,

   403                                  char*     fieldbuf,

   404                                  int       buflen) const {

   405   // Monitors

   406   if (addr >= stack_base && addr < monitor_base) {

   407     int monitor_size = frame::interpreter_frame_monitor_size();

   408     int last_index = (monitor_base - stack_base) / monitor_size - 1;

   409     int index = last_index - (addr - stack_base) / monitor_size;

   410     intptr_t monitor = (intptr_t) (

   411       (BasicObjectLock *) monitor_base - 1 - index);

   412     intptr_t offset = (intptr_t) addr - monitor;

   414     if (offset == BasicObjectLock::obj_offset_in_bytes())

   415       snprintf(fieldbuf, buflen, "monitor[%d]->_obj", index);

   416     else if (offset ==  BasicObjectLock::lock_offset_in_bytes())

   417       snprintf(fieldbuf, buflen, "monitor[%d]->_lock", index);

   419     return;

   420   }

   422   // Expression stack

   423   if (addr < stack_base) {

   424     snprintf(fieldbuf, buflen, "%s[%d]",

   425              frame_index == 0 ? "stack_word" : "local",

   426              (int) (stack_base - addr - 1));

   427     return;

   428   }

   429 }

   431 #ifndef PRODUCT

   433 void frame::describe_pd(FrameValues& values, int frame_no) {

   435 }

   437 #endif

   439 intptr_t *frame::initial_deoptimization_info() {

   440   // unused... but returns fp() to minimize changes introduced by 7087445

   441   return fp();

   442 }

src/cpu/zero/vm/frame_zero.cpp@c566b81b3323

src/cpu/zero/vm/frame_zero.cpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/cpu/zero/vm/frame_zero.cpp@c566b81b3323

src/cpu/zero/vm/frame_zero.cpp