Mercurial > hg > graal-compiler

comparison src/share/vm/gc_implementation/shared/vmGCOperations.cpp @ 14909:4ca6dc0799b6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents e6195383bcaf
children 52b4284cb496
comparison
equal deleted inserted replaced
14908:8db6e76cb658 14909:4ca6dc0799b6
39 #include "utilities/macros.hpp" 39 #include "utilities/macros.hpp"
40 #if INCLUDE_ALL_GCS 40 #if INCLUDE_ALL_GCS
41 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" 41 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
42 #endif // INCLUDE_ALL_GCS 42 #endif // INCLUDE_ALL_GCS
43 43
44 #ifndef USDT2
45 HS_DTRACE_PROBE_DECL1(hotspot, gc__begin, bool);
46 HS_DTRACE_PROBE_DECL(hotspot, gc__end);
47 #endif /* !USDT2 */
48
44 // The same dtrace probe can't be inserted in two different files, so we 49 // The same dtrace probe can't be inserted in two different files, so we
45 // have to call it here, so it's only in one file. Can't create new probes 50 // have to call it here, so it's only in one file. Can't create new probes
46 // for the other file anymore. The dtrace probes have to remain stable. 51 // for the other file anymore. The dtrace probes have to remain stable.
47 void VM_GC_Operation::notify_gc_begin(bool full) { 52 void VM_GC_Operation::notify_gc_begin(bool full) {
53 #ifndef USDT2
54 HS_DTRACE_PROBE1(hotspot, gc__begin, full);
55 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
56 #else /* USDT2 */
48 HOTSPOT_GC_BEGIN( 57 HOTSPOT_GC_BEGIN(
49 full); 58 full);
59 #endif /* USDT2 */
60 }
61
62 void VM_GC_Operation::notify_gc_end() {
63 #ifndef USDT2
64 HS_DTRACE_PROBE(hotspot, gc__end);
50 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG(); 65 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
51 } 66 #else /* USDT2 */
52 67 HOTSPOT_GC_END(
53 void VM_GC_Operation::notify_gc_end() { 68 );
54 HOTSPOT_GC_END(); 69 #endif /* USDT2 */
55 HS_DTRACE_WORKAROUND_TAIL_CALL_BUG();
56 } 70 }
57 71
58 void VM_GC_Operation::acquire_pending_list_lock() { 72 void VM_GC_Operation::acquire_pending_list_lock() {
59 // we may enter this with pending exception set 73 // we may enter this with pending exception set
60 InstanceRefKlass::acquire_pending_list_lock(&_pending_list_basic_lock); 74 InstanceRefKlass::acquire_pending_list_lock(&_pending_list_basic_lock);
66 InstanceRefKlass::release_and_notify_pending_list_lock(&_pending_list_basic_lock); 80 InstanceRefKlass::release_and_notify_pending_list_lock(&_pending_list_basic_lock);
67 } 81 }
68 82
69 // Allocations may fail in several threads at about the same time, 83 // Allocations may fail in several threads at about the same time,
70 // resulting in multiple gc requests. We only want to do one of them. 84 // resulting in multiple gc requests. We only want to do one of them.
71 // In case a GC locker is active and the need for a GC is already signaled, 85 // In case a GC locker is active and the need for a GC is already signalled,
72 // we want to skip this GC attempt altogether, without doing a futile 86 // we want to skip this GC attempt altogether, without doing a futile
73 // safepoint operation. 87 // safepoint operation.
74 bool VM_GC_Operation::skip_operation() const { 88 bool VM_GC_Operation::skip_operation() const {
75 bool skip = (_gc_count_before != Universe::heap()->total_collections()); 89 bool skip = (_gc_count_before != Universe::heap()->total_collections());
76 if (_full && skip) { 90 if (_full && skip) {