jdk8-mips64-public/hotspot: src/share/vm/code/location.cpp@a248d0be1309

8229401: Fix JFR code cache test failures
8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com

     1 /*

     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "code/debugInfo.hpp"

    27 #include "code/location.hpp"

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

    30   if(type() == invalid) {

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

    32     switch (where()) {

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

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

    35     }

    36     return;

    37   }

    38   switch (where()) {

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

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

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

    42   }

    43   switch (type()) {

    44   case normal:                                 break;

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

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

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

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

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

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

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

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

    53   }

    54 }

    57 Location::Location(DebugInfoReadStream* stream) {

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

    59 }

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

    63   stream->write_int(_value);

    64 }

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

    68 bool Location::legal_offset_in_bytes(int offset_in_bytes) {

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

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

    71 }

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

src/share/vm/code/location.cpp@a248d0be1309

src/share/vm/code/location.cpp