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comparison src/share/vm/gc_interface/collectedHeap.inline.hpp @ 113:ba764ed4b6f2

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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents a61af66fc99e
children feeb96a45707 37f87013dfd8
comparison
equal deleted inserted replaced
110:a49a647afe9a 113:ba764ed4b6f2
59 assert(klass() == NULL || klass()->klass_part() != NULL, "not a klass"); 59 assert(klass() == NULL || klass()->klass_part() != NULL, "not a klass");
60 assert(obj != NULL, "NULL object pointer"); 60 assert(obj != NULL, "NULL object pointer");
61 obj->set_klass(klass()); 61 obj->set_klass(klass());
62 assert(!Universe::is_fully_initialized() || obj->blueprint() != NULL, 62 assert(!Universe::is_fully_initialized() || obj->blueprint() != NULL,
63 "missing blueprint"); 63 "missing blueprint");
64 64 }
65
66 // Support for jvmti and dtrace
67 inline void post_allocation_notify(KlassHandle klass, oop obj) {
65 // support for JVMTI VMObjectAlloc event (no-op if not enabled) 68 // support for JVMTI VMObjectAlloc event (no-op if not enabled)
66 JvmtiExport::vm_object_alloc_event_collector(obj); 69 JvmtiExport::vm_object_alloc_event_collector(obj);
67 70
68 if (DTraceAllocProbes) { 71 if (DTraceAllocProbes) {
69 // support for Dtrace object alloc event (no-op most of the time) 72 // support for Dtrace object alloc event (no-op most of the time)
77 HeapWord* obj, 80 HeapWord* obj,
78 size_t size) { 81 size_t size) {
79 post_allocation_setup_common(klass, obj, size); 82 post_allocation_setup_common(klass, obj, size);
80 assert(Universe::is_bootstrapping() || 83 assert(Universe::is_bootstrapping() ||
81 !((oop)obj)->blueprint()->oop_is_array(), "must not be an array"); 84 !((oop)obj)->blueprint()->oop_is_array(), "must not be an array");
85 // notify jvmti and dtrace
86 post_allocation_notify(klass, (oop)obj);
82 } 87 }
83 88
84 void CollectedHeap::post_allocation_setup_array(KlassHandle klass, 89 void CollectedHeap::post_allocation_setup_array(KlassHandle klass,
85 HeapWord* obj, 90 HeapWord* obj,
86 size_t size, 91 size_t size,
87 int length) { 92 int length) {
88 // Set array length before posting jvmti object alloc event
89 // in post_allocation_setup_common()
90 assert(length >= 0, "length should be non-negative"); 93 assert(length >= 0, "length should be non-negative");
94 post_allocation_setup_common(klass, obj, size);
95 // Must set length after installing klass as set_klass zeros the length
96 // field in UseCompressedOops
91 ((arrayOop)obj)->set_length(length); 97 ((arrayOop)obj)->set_length(length);
92 post_allocation_setup_common(klass, obj, size);
93 assert(((oop)obj)->blueprint()->oop_is_array(), "must be an array"); 98 assert(((oop)obj)->blueprint()->oop_is_array(), "must be an array");
99 // notify jvmti and dtrace (must be after length is set for dtrace)
100 post_allocation_notify(klass, (oop)obj);
94 } 101 }
95 102
96 HeapWord* CollectedHeap::common_mem_allocate_noinit(size_t size, bool is_noref, TRAPS) { 103 HeapWord* CollectedHeap::common_mem_allocate_noinit(size_t size, bool is_noref, TRAPS) {
97 104
98 // Clear unhandled oops for memory allocation. Memory allocation might 105 // Clear unhandled oops for memory allocation. Memory allocation might