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

     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   return false;

   120 }

   122 void frame::pd_gc_epilog() {

   123 }

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

   126   ShouldNotCallThis();

   127   return false;

   128 }

   130 BasicType frame::interpreter_frame_result(oop* oop_result,

   131                                           jvalue* value_result) {

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

   133   Method* method = interpreter_frame_method();

   134   BasicType type = method->result_type();

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

   136   oop obj;

   138   switch (type) {

   139   case T_VOID:

   140     break;

   141   case T_BOOLEAN:

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

   143     break;

   144   case T_BYTE:

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

   146     break;

   147   case T_CHAR:

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

   149     break;

   150   case T_SHORT:

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

   152     break;

   153   case T_INT:

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

   155     break;

   156   case T_LONG:

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

   158     break;

   159   case T_FLOAT:

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

   161     break;

   162   case T_DOUBLE:

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

   164     break;

   166   case T_OBJECT:

   167   case T_ARRAY:

   168     if (method->is_native()) {

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

   170     }

   171     else {

   172       oop* obj_p = (oop *) tos_addr;

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

   174     }

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

   176     *oop_result = obj;

   177     break;

   179   default:

   180     ShouldNotReachHere();

   181   }

   183   return type;

   184 }

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

   187 #ifdef PRODUCT

   188   ShouldNotCallThis();

   189 #endif // PRODUCT

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

   191 }

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

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

   195   return &interpreter_frame_tos_address()[index];

   196 }

   198 void frame::zero_print_on_error(int           frame_index,

   199                                 outputStream* st,

   200                                 char*         buf,

   201                                 int           buflen) const {

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

   203   buflen >>= 1;

   204   char *fieldbuf = buf;

   205   char *valuebuf = buf + buflen;

   207   // Print each word of the frame

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

   209     int offset = fp() - addr;

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

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

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

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

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

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

   218     // Print the result

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

   220   }

   221 }

   223 void ZeroFrame::identify_word(int   frame_index,

   224                               int   offset,

   225                               char* fieldbuf,

   226                               char* valuebuf,

   227                               int   buflen) const {

   228   switch (offset) {

   229   case next_frame_off:

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

   231     break;

   233   case frame_type_off:

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

   235     if (is_entry_frame())

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

   237     else if (is_interpreter_frame())

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

   239     else if (is_shark_frame())

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

   241     else if (is_fake_stub_frame())

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

   243     break;

   245   default:

   246     if (is_entry_frame()) {

   247       as_entry_frame()->identify_word(

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

   249     }

   250     else if (is_interpreter_frame()) {

   251       as_interpreter_frame()->identify_word(

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

   253     }

   254     else if (is_shark_frame()) {

   255       as_shark_frame()->identify_word(

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

   257     }

   258     else if (is_fake_stub_frame()) {

   259       as_fake_stub_frame()->identify_word(

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

   261     }

   262   }

   263 }

   265 void EntryFrame::identify_word(int   frame_index,

   266                                int   offset,

   267                                char* fieldbuf,

   268                                char* valuebuf,

   269                                int   buflen) const {

   270   switch (offset) {

   271   case call_wrapper_off:

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

   273     break;

   275   default:

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

   277   }

   278 }

   280 void InterpreterFrame::identify_word(int   frame_index,

   281                                      int   offset,

   282                                      char* fieldbuf,

   283                                      char* valuebuf,

   284                                      int   buflen) const {

   285   interpreterState istate = interpreter_state();

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

   287   intptr_t *addr = addr_of_word(offset);

   289   // Fixed part

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

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

   292     if (field) {

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

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

   295       }

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

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

   298                  (intptr_t) istate->bcp(),

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

   300       }

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

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

   303     }

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

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

   306     }

   307     return;

   308   }

   310   // Variable part

   311   if (!is_valid)

   312     return;

   314   // JNI stuff

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

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

   317     if (hA != NULL) {

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

   319         InterpreterRuntime::SignatureHandler *handler =

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

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

   323         if (addr >= params) {

   324           int param = addr - params;

   325           const char *desc = "";

   326           if (param == 0)

   327             desc = " (JNIEnv)";

   328           else if (param == 1) {

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

   330               desc = " (mirror)";

   331             else

   332               desc = " (this)";

   333           }

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

   335           return;

   336         }

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

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

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

   341             return;

   342           }

   343         }

   344       }

   345     }

   346     return;

   347   }

   349   // Monitors and stack

   350   identify_vp_word(frame_index, addr,

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

   352                    istate->stack_base(),

   353                    fieldbuf, buflen);

   354 }

   356 void SharkFrame::identify_word(int   frame_index,

   357                                int   offset,

   358                                char* fieldbuf,

   359                                char* valuebuf,

   360                                int   buflen) const {

   361   // Fixed part

   362   switch (offset) {

   363   case pc_off:

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

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

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

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

   368         SimpleScopeDesc ssd(code, pc());

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

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

   371       }

   372     }

   373     return;

   375   case unextended_sp_off:

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

   377     return;

   379   case method_off:

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

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

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

   383     }

   384     return;

   386   case oop_tmp_off:

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

   388     return;

   389   }

   391   // Variable part

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

   393     identify_vp_word(frame_index, addr_of_word(offset),

   394                      addr_of_word(header_words + 1),

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

   396                      fieldbuf, buflen);

   397   }

   398 }

   400 void ZeroFrame::identify_vp_word(int       frame_index,

   401                                  intptr_t* addr,

   402                                  intptr_t* monitor_base,

   403                                  intptr_t* stack_base,

   404                                  char*     fieldbuf,

   405                                  int       buflen) const {

   406   // Monitors

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

   408     int monitor_size = frame::interpreter_frame_monitor_size();

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

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

   411     intptr_t monitor = (intptr_t) (

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

   413     intptr_t offset = (intptr_t) addr - monitor;

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

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

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

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

   420     return;

   421   }

   423   // Expression stack

   424   if (addr < stack_base) {

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

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

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

   428     return;

   429   }

   430 }

   432 #ifndef PRODUCT

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

   436 }

   438 #endif

   440 intptr_t *frame::initial_deoptimization_info() {

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

   442   return fp();

   443 }

src/cpu/zero/vm/frame_zero.cpp@e16282db4946

src/cpu/zero/vm/frame_zero.cpp

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

src/cpu/zero/vm/frame_zero.cpp@e16282db4946

src/cpu/zero/vm/frame_zero.cpp