graal-jvmci-8: src/share/vm/memory/barrierSet.inline.hpp annotate

annotate src/share/vm/memory/barrierSet.inline.hpp @ 3772:6747fd0512e0

7004681: G1: Extend marking verification to Full GCs Summary: Perform a heap verification after the first phase of G1's full GC using objects' mark words to determine liveness. The third parameter of the heap verification routines, which was used in G1 to determine which marking bitmap to use in liveness calculations, has been changed from a boolean to an enum with values defined for using the mark word, and the 'prev' and 'next' bitmaps. Reviewed-by: tonyp, ysr

author	johnc
date	Tue, 14 Jun 2011 11:01:10 -0700
parents	f95d63e2154a
children	3205e78d8193

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1245 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1245 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1245 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #ifndef SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "memory/barrierSet.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "memory/cardTableModRefBS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30
0 a61af66fc99e Initial load duke parents: diff changeset	31 // Inline functions of BarrierSet, which de-virtualize certain
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	32 // performance-critical calls when the barrier is the most common
0 a61af66fc99e Initial load duke parents: diff changeset	33 // card-table kind.
a61af66fc99e Initial load duke parents: diff changeset	34
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	35 template <class T> void BarrierSet::write_ref_field_pre(T* field, oop new_val) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	36 if (kind() == CardTableModRef) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	37 ((CardTableModRefBS*)this)->inline_write_ref_field_pre(field, new_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	38 } else {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	39 write_ref_field_pre_work(field, new_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	40 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	41 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	42
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	43 void BarrierSet::write_ref_field(void* field, oop new_val) {
0 a61af66fc99e Initial load duke parents: diff changeset	44 if (kind() == CardTableModRef) {
a61af66fc99e Initial load duke parents: diff changeset	45 ((CardTableModRefBS*)this)->inline_write_ref_field(field, new_val);
a61af66fc99e Initial load duke parents: diff changeset	46 } else {
a61af66fc99e Initial load duke parents: diff changeset	47 write_ref_field_work(field, new_val);
a61af66fc99e Initial load duke parents: diff changeset	48 }
a61af66fc99e Initial load duke parents: diff changeset	49 }
a61af66fc99e Initial load duke parents: diff changeset	50
1091 6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	51 // count is number of array elements being written
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	52 void BarrierSet::write_ref_array(HeapWord* start, size_t count) {
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	53 assert(count <= (size_t)max_intx, "count too large");
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	54 HeapWord* end = (HeapWord)((char)start + (count*heapOopSize));
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	55 // In the case of compressed oops, start and end may potentially be misaligned;
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	56 // so we need to conservatively align the first downward (this is not
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	57 // strictly necessary for current uses, but a case of good hygiene and,
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	58 // if you will, aesthetics) and the second upward (this is essential for
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	59 // current uses) to a HeapWord boundary, so we mark all cards overlapping
1245 6484c4ee11cb 6904516: More object array barrier fixes, following up on 6906727 ysr parents: 1091 diff changeset	60 // this write. If this evolves in the future to calling a
1091 6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	61 // logging barrier of narrow oop granularity, like the pre-barrier for G1
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	62 // (mentioned here merely by way of example), we will need to change this
1245 6484c4ee11cb 6904516: More object array barrier fixes, following up on 6906727 ysr parents: 1091 diff changeset	63 // interface, so it is "exactly precise" (if i may be allowed the adverbial
6484c4ee11cb 6904516: More object array barrier fixes, following up on 6906727 ysr parents: 1091 diff changeset	64 // redundancy for emphasis) and does not include narrow oop slots not
6484c4ee11cb 6904516: More object array barrier fixes, following up on 6906727 ysr parents: 1091 diff changeset	65 // included in the original write interval.
1091 6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	66 HeapWord* aligned_start = (HeapWord*)align_size_down((uintptr_t)start, HeapWordSize);
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	67 HeapWord* aligned_end = (HeapWord*)align_size_up ((uintptr_t)end, HeapWordSize);
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	68 // If compressed oops were not being used, these should already be aligned
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	69 assert(UseCompressedOops \|\| (aligned_start == start && aligned_end == end),
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	70 "Expected heap word alignment of start and end");
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	71 #if 0
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	72 warning("Post:\t" INTPTR_FORMAT "[" SIZE_FORMAT "] : [" INTPTR_FORMAT","INTPTR_FORMAT")\t",
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	73 start, count, aligned_start, aligned_end);
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	74 #endif
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	75 write_ref_array_work(MemRegion(aligned_start, aligned_end));
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	76 }
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	77
6aa7255741f3 6906727: UseCompressedOops: some card-marking fixes related to object arrays ysr parents: 845 diff changeset	78
0 a61af66fc99e Initial load duke parents: diff changeset	79 void BarrierSet::write_region(MemRegion mr) {
a61af66fc99e Initial load duke parents: diff changeset	80 if (kind() == CardTableModRef) {
a61af66fc99e Initial load duke parents: diff changeset	81 ((CardTableModRefBS*)this)->inline_write_region(mr);
a61af66fc99e Initial load duke parents: diff changeset	82 } else {
a61af66fc99e Initial load duke parents: diff changeset	83 write_region_work(mr);
a61af66fc99e Initial load duke parents: diff changeset	84 }
a61af66fc99e Initial load duke parents: diff changeset	85 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	86
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	87 #endif // SHARE_VM_MEMORY_BARRIERSET_INLINE_HPP

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/memory/barrierSet.inline.hpp @ 3772:6747fd0512e0