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

7087445: Improve platform independence of JSR292 shared code
Summary: changes necessary for some JSR292 ports
Reviewed-by: jrose, dholmes

     1 /*

     2  * Copyright (c) 2003, 2010, 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/methodOop.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) {

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

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

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

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

   105 }

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

   108   ShouldNotCallThis();

   109 }

   111 void frame::pd_gc_epilog() {

   112 }

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

   115   ShouldNotCallThis();

   116 }

   118 BasicType frame::interpreter_frame_result(oop* oop_result,

   119                                           jvalue* value_result) {

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

   121   methodOop method = interpreter_frame_method();

   122   BasicType type = method->result_type();

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

   124   oop obj;

   126   switch (type) {

   127   case T_VOID:

   128     break;

   129   case T_BOOLEAN:

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

   131     break;

   132   case T_BYTE:

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

   134     break;

   135   case T_CHAR:

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

   137     break;

   138   case T_SHORT:

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

   140     break;

   141   case T_INT:

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

   143     break;

   144   case T_LONG:

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

   146     break;

   147   case T_FLOAT:

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

   149     break;

   150   case T_DOUBLE:

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

   152     break;

   154   case T_OBJECT:

   155   case T_ARRAY:

   156     if (method->is_native()) {

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

   158     }

   159     else {

   160       oop* obj_p = (oop *) tos_addr;

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

   162     }

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

   164     *oop_result = obj;

   165     break;

   167   default:

   168     ShouldNotReachHere();

   169   }

   171   return type;

   172 }

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

   175 #ifdef PRODUCT

   176   ShouldNotCallThis();

   177 #else

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

   179 #endif // PRODUCT

   180 }

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

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

   184   return &interpreter_frame_tos_address()[index];

   185 }

   187 void frame::zero_print_on_error(int           frame_index,

   188                                 outputStream* st,

   189                                 char*         buf,

   190                                 int           buflen) const {

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

   192   buflen >>= 1;

   193   char *fieldbuf = buf;

   194   char *valuebuf = buf + buflen;

   196   // Print each word of the frame

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

   198     int offset = fp() - addr;

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

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

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

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

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

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

   207     // Print the result

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

   209   }

   210 }

   212 void ZeroFrame::identify_word(int   frame_index,

   213                               int   offset,

   214                               char* fieldbuf,

   215                               char* valuebuf,

   216                               int   buflen) const {

   217   switch (offset) {

   218   case next_frame_off:

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

   220     break;

   222   case frame_type_off:

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

   224     if (is_entry_frame())

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

   226     else if (is_interpreter_frame())

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

   228     else if (is_shark_frame())

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

   230     else if (is_fake_stub_frame())

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

   232     break;

   234   default:

   235     if (is_entry_frame()) {

   236       as_entry_frame()->identify_word(

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

   238     }

   239     else if (is_interpreter_frame()) {

   240       as_interpreter_frame()->identify_word(

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

   242     }

   243     else if (is_shark_frame()) {

   244       as_shark_frame()->identify_word(

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

   246     }

   247     else if (is_fake_stub_frame()) {

   248       as_fake_stub_frame()->identify_word(

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

   250     }

   251   }

   252 }

   254 void EntryFrame::identify_word(int   frame_index,

   255                                int   offset,

   256                                char* fieldbuf,

   257                                char* valuebuf,

   258                                int   buflen) const {

   259   switch (offset) {

   260   case call_wrapper_off:

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

   262     break;

   264   default:

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

   266   }

   267 }

   269 void InterpreterFrame::identify_word(int   frame_index,

   270                                      int   offset,

   271                                      char* fieldbuf,

   272                                      char* valuebuf,

   273                                      int   buflen) const {

   274   interpreterState istate = interpreter_state();

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

   276   intptr_t *addr = addr_of_word(offset);

   278   // Fixed part

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

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

   281     if (field) {

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

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

   284       }

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

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

   287                  (intptr_t) istate->bcp(),

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

   289       }

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

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

   292     }

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

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

   295     }

   296     return;

   297   }

   299   // Variable part

   300   if (!is_valid)

   301     return;

   303   // JNI stuff

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

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

   306     if (hA != NULL) {

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

   308         InterpreterRuntime::SignatureHandler *handler =

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

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

   312         if (addr >= params) {

   313           int param = addr - params;

   314           const char *desc = "";

   315           if (param == 0)

   316             desc = " (JNIEnv)";

   317           else if (param == 1) {

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

   319               desc = " (mirror)";

   320             else

   321               desc = " (this)";

   322           }

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

   324           return;

   325         }

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

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

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

   330             return;

   331           }

   332         }

   333       }

   334     }

   335     return;

   336   }

   338   // Monitors and stack

   339   identify_vp_word(frame_index, addr,

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

   341                    istate->stack_base(),

   342                    fieldbuf, buflen);

   343 }

   345 void SharkFrame::identify_word(int   frame_index,

   346                                int   offset,

   347                                char* fieldbuf,

   348                                char* valuebuf,

   349                                int   buflen) const {

   350   // Fixed part

   351   switch (offset) {

   352   case pc_off:

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

   354     if (method()->is_oop()) {

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

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

   357         SimpleScopeDesc ssd(code, pc());

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

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

   360       }

   361     }

   362     return;

   364   case unextended_sp_off:

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

   366     return;

   368   case method_off:

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

   370     if (method()->is_oop()) {

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

   372     }

   373     return;

   375   case oop_tmp_off:

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

   377     return;

   378   }

   380   // Variable part

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

   382     identify_vp_word(frame_index, addr_of_word(offset),

   383                      addr_of_word(header_words + 1),

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

   385                      fieldbuf, buflen);

   386   }

   387 }

   389 void ZeroFrame::identify_vp_word(int       frame_index,

   390                                  intptr_t* addr,

   391                                  intptr_t* monitor_base,

   392                                  intptr_t* stack_base,

   393                                  char*     fieldbuf,

   394                                  int       buflen) const {

   395   // Monitors

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

   397     int monitor_size = frame::interpreter_frame_monitor_size();

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

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

   400     intptr_t monitor = (intptr_t) (

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

   402     intptr_t offset = (intptr_t) addr - monitor;

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

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

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

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

   409     return;

   410   }

   412   // Expression stack

   413   if (addr < stack_base) {

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

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

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

   417     return;

   418   }

   419 }

   421 #ifdef ASSERT

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

   425 }

   427 #endif

   429 intptr_t *frame::initial_deoptimization_info() {

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

   431   return fp();

   432 }

src/cpu/zero/vm/frame_zero.cpp@5432047c7db7

src/cpu/zero/vm/frame_zero.cpp

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

src/cpu/zero/vm/frame_zero.cpp@5432047c7db7

src/cpu/zero/vm/frame_zero.cpp