jdk8-mips64-public/hotspot: src/share/vm/code/location.cpp@148e5441d916

6863023: need non-perm oops in code cache for JSR 292
Summary: Make a special root-list for those few nmethods which might contain non-perm oops.
Reviewed-by: twisti, kvn, never, jmasa, ysr

     1 /*

     2  * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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

    21  * have any questions.

    22  *

    23  */

    25 #include "incls/_precompiled.incl"

    26 #include "incls/_location.cpp.incl"

    28 void Location::print_on(outputStream* st) const {

    29   if(type() == invalid) {

    30     // product of Location::invalid_loc() or Location::Location().

    31     switch (where()) {

    32     case on_stack:     st->print("empty");    break;

    33     case in_register:  st->print("invalid");  break;

    34     }

    35     return;

    36   }

    37   switch (where()) {

    38   case on_stack:    st->print("stack[%d]", stack_offset());    break;

    39   case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;

    40   default:          st->print("Wrong location where %d", where());

    41   }

    42   switch (type()) {

    43   case normal:                                 break;

    44   case oop:          st->print(",oop");        break;

    45   case narrowoop:    st->print(",narrowoop");  break;

    46   case int_in_long:  st->print(",int");        break;

    47   case lng:          st->print(",long");       break;

    48   case float_in_dbl: st->print(",float");      break;

    49   case dbl:          st->print(",double");     break;

    50   case addr:         st->print(",address");    break;

    51   default:           st->print("Wrong location type %d", type());

    52   }

    53 }

    56 Location::Location(DebugInfoReadStream* stream) {

    57   _value = (juint) stream->read_int();

    58 }

    61 void Location::write_on(DebugInfoWriteStream* stream) {

    62   stream->write_int(_value);

    63 }

    66 // Valid argument to Location::new_stk_loc()?

    67 bool Location::legal_offset_in_bytes(int offset_in_bytes) {

    68   if ((offset_in_bytes % BytesPerInt) != 0)  return false;

    69   return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);

    70 }

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

src/share/vm/code/location.cpp@148e5441d916

src/share/vm/code/location.cpp