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

6950617: Zero/Shark interface updates
Summary: Zero needs a couple of new methods to allow Shark to access the new frame anchor field.
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

     1 /*

     2  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.

     3  * Copyright 2007, 2008, 2009, 2010 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    21  * CA 95054 USA or visit www.sun.com if you need additional information or

    22  * have any questions.

    23  *

    24  */

    26 #include "incls/_precompiled.incl"

    27 #include "incls/_frame_zero.cpp.incl"

    29 #ifdef ASSERT

    30 void RegisterMap::check_location_valid() {

    31   ShouldNotCallThis();

    32 }

    33 #endif

    35 bool frame::is_interpreted_frame() const {

    36   return zeroframe()->is_interpreter_frame();

    37 }

    39 bool frame::is_fake_stub_frame() const {

    40   return zeroframe()->is_fake_stub_frame();

    41 }

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

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

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

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

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

    48          "sender should be next Java frame");

    49   map->clear();

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

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

    52 }

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

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

    56          zeroframe()->is_shark_frame() ||

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

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

    59 }

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

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

    63   // sender_for_xxx methods update this accordingly.

    64   map->set_include_argument_oops(false);

    66   if (is_entry_frame())

    67     return sender_for_entry_frame(map);

    68   else

    69     return sender_for_nonentry_frame(map);

    70 }

    72 #ifdef CC_INTERP

    73 BasicObjectLock* frame::interpreter_frame_monitor_begin() const {

    74   return get_interpreterState()->monitor_base();

    75 }

    77 BasicObjectLock* frame::interpreter_frame_monitor_end() const {

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

    79 }

    80 #endif // CC_INTERP

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

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

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

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

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

    87 }

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

    90   ShouldNotCallThis();

    91 }

    93 void frame::pd_gc_epilog() {

    94 }

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

    97   ShouldNotCallThis();

    98 }

   100 BasicType frame::interpreter_frame_result(oop* oop_result,

   101                                           jvalue* value_result) {

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

   103   methodOop method = interpreter_frame_method();

   104   BasicType type = method->result_type();

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

   106   oop obj;

   108   switch (type) {

   109   case T_VOID:

   110     break;

   111   case T_BOOLEAN:

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

   113     break;

   114   case T_BYTE:

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

   116     break;

   117   case T_CHAR:

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

   119     break;

   120   case T_SHORT:

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

   122     break;

   123   case T_INT:

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

   125     break;

   126   case T_LONG:

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

   128     break;

   129   case T_FLOAT:

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

   131     break;

   132   case T_DOUBLE:

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

   134     break;

   136   case T_OBJECT:

   137   case T_ARRAY:

   138     if (method->is_native()) {

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

   140     }

   141     else {

   142       oop* obj_p = (oop *) tos_addr;

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

   144     }

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

   146     *oop_result = obj;

   147     break;

   149   default:

   150     ShouldNotReachHere();

   151   }

   153   return type;

   154 }

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

   157 #ifdef PRODUCT

   158   ShouldNotCallThis();

   159 #else

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

   161 #endif // PRODUCT

   162 }

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

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

   166   return &interpreter_frame_tos_address()[index];

   167 }

   169 void frame::zero_print_on_error(int           frame_index,

   170                                 outputStream* st,

   171                                 char*         buf,

   172                                 int           buflen) const {

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

   174   buflen >>= 1;

   175   char *fieldbuf = buf;

   176   char *valuebuf = buf + buflen;

   178   // Print each word of the frame

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

   180     int offset = fp() - addr;

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

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

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

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

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

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

   189     // Print the result

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

   191   }

   192 }

   194 void ZeroFrame::identify_word(int   frame_index,

   195                               int   offset,

   196                               char* fieldbuf,

   197                               char* valuebuf,

   198                               int   buflen) const {

   199   switch (offset) {

   200   case next_frame_off:

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

   202     break;

   204   case frame_type_off:

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

   206     if (is_entry_frame())

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

   208     else if (is_interpreter_frame())

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

   210     else if (is_shark_frame())

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

   212     else if (is_fake_stub_frame())

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

   214     break;

   216   default:

   217     if (is_entry_frame()) {

   218       as_entry_frame()->identify_word(

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

   220     }

   221     else if (is_interpreter_frame()) {

   222       as_interpreter_frame()->identify_word(

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

   224     }

   225     else if (is_shark_frame()) {

   226       as_shark_frame()->identify_word(

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

   228     }

   229     else if (is_fake_stub_frame()) {

   230       as_fake_stub_frame()->identify_word(

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

   232     }

   233   }

   234 }

   236 void EntryFrame::identify_word(int   frame_index,

   237                                int   offset,

   238                                char* fieldbuf,

   239                                char* valuebuf,

   240                                int   buflen) const {

   241   switch (offset) {

   242   case call_wrapper_off:

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

   244     break;

   246   default:

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

   248   }

   249 }

   251 void InterpreterFrame::identify_word(int   frame_index,

   252                                      int   offset,

   253                                      char* fieldbuf,

   254                                      char* valuebuf,

   255                                      int   buflen) const {

   256   interpreterState istate = interpreter_state();

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

   258   intptr_t *addr = addr_of_word(offset);

   260   // Fixed part

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

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

   263     if (field) {

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

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

   266       }

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

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

   269                  (intptr_t) istate->bcp(),

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

   271       }

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

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

   274     }

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

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

   277     }

   278     return;

   279   }

   281   // Variable part

   282   if (!is_valid)

   283     return;

   285   // JNI stuff

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

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

   288     if (hA != NULL) {

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

   290         InterpreterRuntime::SignatureHandler *handler =

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

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

   294         if (addr >= params) {

   295           int param = addr - params;

   296           const char *desc = "";

   297           if (param == 0)

   298             desc = " (JNIEnv)";

   299           else if (param == 1) {

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

   301               desc = " (mirror)";

   302             else

   303               desc = " (this)";

   304           }

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

   306           return;

   307         }

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

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

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

   312             return;

   313           }

   314         }

   315       }

   316     }

   317     return;

   318   }

   320   // Monitors and stack

   321   identify_vp_word(frame_index, addr,

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

   323                    istate->stack_base(),

   324                    fieldbuf, buflen);

   325 }

   327 void SharkFrame::identify_word(int   frame_index,

   328                                int   offset,

   329                                char* fieldbuf,

   330                                char* valuebuf,

   331                                int   buflen) const {

   332   // Fixed part

   333   switch (offset) {

   334   case pc_off:

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

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

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

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

   339         SimpleScopeDesc ssd(code, pc());

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

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

   342       }

   343     }

   344     return;

   346   case unextended_sp_off:

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

   348     return;

   350   case method_off:

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

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

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

   354     }

   355     return;

   357   case oop_tmp_off:

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

   359     return;

   360   }

   362   // Variable part

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

   364     identify_vp_word(frame_index, addr_of_word(offset),

   365                      addr_of_word(header_words + 1),

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

   367                      fieldbuf, buflen);

   368   }

   369 }

   371 void ZeroFrame::identify_vp_word(int       frame_index,

   372                                  intptr_t* addr,

   373                                  intptr_t* monitor_base,

   374                                  intptr_t* stack_base,

   375                                  char*     fieldbuf,

   376                                  int       buflen) const {

   377   // Monitors

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

   379     int monitor_size = frame::interpreter_frame_monitor_size();

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

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

   382     intptr_t monitor = (intptr_t) (

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

   384     intptr_t offset = (intptr_t) addr - monitor;

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

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

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

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

   391     return;

   392   }

   394   // Expression stack

   395   if (addr < stack_base) {

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

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

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

   399     return;

   400   }

   401 }

src/cpu/zero/vm/frame_zero.cpp@6cfbdb113e52

src/cpu/zero/vm/frame_zero.cpp

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

src/cpu/zero/vm/frame_zero.cpp@6cfbdb113e52

src/cpu/zero/vm/frame_zero.cpp