Tue, 28 Apr 2015 19:04:39 +0900
8076212: AllocateHeap() and ReallocateHeap() should be inlined.
Summary: NMT with detail option reports incorrect caller address on Linux.
Reviewed-by: dholmes, coleenp
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13 * accompanied this code).
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23 */
25 #include "precompiled.hpp"
26 #include "classfile/symbolTable.hpp"
27 #include "classfile/systemDictionary.hpp"
28 #include "code/codeCache.hpp"
29 #include "gc_interface/collectedHeap.inline.hpp"
30 #include "memory/sharedHeap.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "runtime/atomic.inline.hpp"
33 #include "runtime/fprofiler.hpp"
34 #include "runtime/java.hpp"
35 #include "utilities/copy.hpp"
36 #include "utilities/workgroup.hpp"
38 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
40 SharedHeap* SharedHeap::_sh;
42 SharedHeap::SharedHeap(CollectorPolicy* policy_) :
43 CollectedHeap(),
44 _collector_policy(policy_),
45 _rem_set(NULL),
46 _strong_roots_parity(0),
47 _workers(NULL)
48 {
49 _sh = this; // ch is static, should be set only once.
50 if ((UseParNewGC ||
51 (UseConcMarkSweepGC && (CMSParallelInitialMarkEnabled ||
52 CMSParallelRemarkEnabled)) ||
53 UseG1GC) &&
54 ParallelGCThreads > 0) {
55 _workers = new FlexibleWorkGang("Parallel GC Threads", ParallelGCThreads,
56 /* are_GC_task_threads */true,
57 /* are_ConcurrentGC_threads */false);
58 if (_workers == NULL) {
59 vm_exit_during_initialization("Failed necessary allocation.");
60 } else {
61 _workers->initialize_workers();
62 }
63 }
64 }
66 bool SharedHeap::heap_lock_held_for_gc() {
67 Thread* t = Thread::current();
68 return Heap_lock->owned_by_self()
69 || ( (t->is_GC_task_thread() || t->is_VM_thread())
70 && _thread_holds_heap_lock_for_gc);
71 }
73 void SharedHeap::set_par_threads(uint t) {
74 assert(t == 0 || !UseSerialGC, "Cannot have parallel threads");
75 _n_par_threads = t;
76 }
78 void SharedHeap::change_strong_roots_parity() {
79 // Also set the new collection parity.
80 assert(_strong_roots_parity >= 0 && _strong_roots_parity <= 2,
81 "Not in range.");
82 _strong_roots_parity++;
83 if (_strong_roots_parity == 3) _strong_roots_parity = 1;
84 assert(_strong_roots_parity >= 1 && _strong_roots_parity <= 2,
85 "Not in range.");
86 }
88 SharedHeap::StrongRootsScope::StrongRootsScope(SharedHeap* heap, bool activate)
89 : MarkScope(activate), _sh(heap)
90 {
91 if (_active) {
92 _sh->change_strong_roots_parity();
93 // Zero the claimed high water mark in the StringTable
94 StringTable::clear_parallel_claimed_index();
95 }
96 }
98 void SharedHeap::set_barrier_set(BarrierSet* bs) {
99 _barrier_set = bs;
100 // Cached barrier set for fast access in oops
101 oopDesc::set_bs(bs);
102 }
104 void SharedHeap::post_initialize() {
105 CollectedHeap::post_initialize();
106 ref_processing_init();
107 }
109 void SharedHeap::ref_processing_init() {}
111 // Some utilities.
112 void SharedHeap::print_size_transition(outputStream* out,
113 size_t bytes_before,
114 size_t bytes_after,
115 size_t capacity) {
116 out->print(" %d%s->%d%s(%d%s)",
117 byte_size_in_proper_unit(bytes_before),
118 proper_unit_for_byte_size(bytes_before),
119 byte_size_in_proper_unit(bytes_after),
120 proper_unit_for_byte_size(bytes_after),
121 byte_size_in_proper_unit(capacity),
122 proper_unit_for_byte_size(capacity));
123 }