jdk8-mips64-public/hotspot: src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp

Mon, 19 Aug 2019 10:11:31 +0200

author: neugens
date: Mon, 19 Aug 2019 10:11:31 +0200
changeset 9861: a248d0be1309
parent 9858: b985cbb00e68
child 9887: 78f156419d26
permissions: -rw-r--r--

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

 /*
  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_JFR_CHECKPOINT_TYPES_TRACEID_JFRTRACEIDBITS_INLINE_HPP
 #define SHARE_VM_JFR_CHECKPOINT_TYPES_TRACEID_JFRTRACEIDBITS_INLINE_HPP
 #include "jfr/utilities/jfrTypes.hpp"
 #include "runtime/atomic.inline.hpp"
 #include "runtime/orderAccess.inline.hpp"
 #include "utilities/macros.hpp"
 #ifdef VM_LITTLE_ENDIAN
 static const int low_offset = 0;
 static const int leakp_offset = low_offset + 1;
 #else
 static const int low_offset = 7;
 static const int leakp_offset = low_offset - 1;
 #endif
 inline void set_bits(jbyte bits, jbyte* const dest) {
   assert(dest != NULL, "invariant");
   const jbyte current = OrderAccess::load_acquire(dest);
   if (bits != (current & bits)) {
     *dest |= bits;
   }
 }
 inline void set_mask(jbyte mask, jbyte* const dest) {
   assert(dest != NULL, "invariant");
   const jbyte current = OrderAccess::load_acquire(dest);
   if (mask != (current & mask)) {
     *dest &= mask;
   }
 }
 inline void set_bits_cas(jbyte bits, jbyte* const dest) {
   assert(dest != NULL, "invariant");
   do {
     const jbyte current = OrderAccess::load_acquire(dest);
     if (bits == (current & bits)) {
       return;
     }
     const jbyte new_value = current | bits;
     if (Atomic::cmpxchg(new_value, dest, current) == current) {
       return;
     }
   } while (true);
 }
 inline void clear_bits_cas(jbyte bits, jbyte* const dest) {
   assert(dest != NULL, "invariant");
   do {
     const jbyte current = OrderAccess::load_acquire(dest);
     if (bits != (current & bits)) {
       return;
     }
     const jbyte new_value = current ^ bits;
     if (Atomic::cmpxchg(new_value, dest, current) == current) {
       return;
     }
   } while (true);
 }
 inline void set_traceid_bits(jbyte bits, traceid* dest) {
   set_bits(bits, ((jbyte*)dest) + low_offset);
 }
 inline void set_traceid_bits_cas(jbyte bits, traceid* dest) {
   set_bits_cas(bits, ((jbyte*)dest) + low_offset);
 }
 inline void set_traceid_mask(jbyte mask, traceid* dest) {
   set_mask(mask, ((jbyte*)dest) + low_offset);
 }
 inline void set_leakp_traceid_bits(jbyte bits, traceid* dest) {
   set_bits(bits, ((jbyte*)dest) + leakp_offset);
 }
 inline void set_leakp_traceid_bits_cas(jbyte bits, traceid* dest) {
   set_bits_cas(bits, ((jbyte*)dest) + leakp_offset);
 }
 inline void set_leakp_traceid_mask(jbyte mask, traceid* dest) {
   set_mask(mask, ((jbyte*)dest) + leakp_offset);
 }
 #endif // SHARE_VM_JFR_CHECKPOINT_TYPES_TRACEID_JFRTRACEIDBITS_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp