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comparison src/share/vm/gc_interface/collectedHeap.hpp @ 5965:cc74fa5a91a9

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7103665: HeapWord*ParallelScavengeHeap::failed_mem_allocate(unsigned long,bool)+0x97 Summary: Make sure that MutableNUMASpace::ensure_parsability() only calls CollectedHeap::fill_with_object() with valid sizes and make sure CollectedHeap::filler_array_max_size() returns a value that can be converted to an int without overflow Reviewed-by: azeemj, jmasa, iveresov
author brutisso
date Fri, 23 Mar 2012 15:28:24 +0100
parents aa3d708d67c4
children 9a9bb0010c91
comparison
equal deleted inserted replaced
5964:21595f05bc93 5965:cc74fa5a91a9
126 virtual void accumulate_statistics_all_tlabs(); 126 virtual void accumulate_statistics_all_tlabs();
127 127
128 // Reinitialize tlabs before resuming mutators. 128 // Reinitialize tlabs before resuming mutators.
129 virtual void resize_all_tlabs(); 129 virtual void resize_all_tlabs();
130 130
131 protected:
132 // Allocate from the current thread's TLAB, with broken-out slow path. 131 // Allocate from the current thread's TLAB, with broken-out slow path.
133 inline static HeapWord* allocate_from_tlab(Thread* thread, size_t size); 132 inline static HeapWord* allocate_from_tlab(Thread* thread, size_t size);
134 static HeapWord* allocate_from_tlab_slow(Thread* thread, size_t size); 133 static HeapWord* allocate_from_tlab_slow(Thread* thread, size_t size);
135 134
136 // Allocate an uninitialized block of the given size, or returns NULL if 135 // Allocate an uninitialized block of the given size, or returns NULL if
167 inline static void init_obj(HeapWord* obj, size_t size); 166 inline static void init_obj(HeapWord* obj, size_t size);
168 167
169 // Filler object utilities. 168 // Filler object utilities.
170 static inline size_t filler_array_hdr_size(); 169 static inline size_t filler_array_hdr_size();
171 static inline size_t filler_array_min_size(); 170 static inline size_t filler_array_min_size();
172 static inline size_t filler_array_max_size();
173 171
174 DEBUG_ONLY(static void fill_args_check(HeapWord* start, size_t words);) 172 DEBUG_ONLY(static void fill_args_check(HeapWord* start, size_t words);)
175 DEBUG_ONLY(static void zap_filler_array(HeapWord* start, size_t words, bool zap = true);) 173 DEBUG_ONLY(static void zap_filler_array(HeapWord* start, size_t words, bool zap = true);)
176 174
177 // Fill with a single array; caller must ensure filler_array_min_size() <= 175 // Fill with a single array; caller must ensure filler_array_min_size() <=
194 SharedHeap, 192 SharedHeap,
195 GenCollectedHeap, 193 GenCollectedHeap,
196 ParallelScavengeHeap, 194 ParallelScavengeHeap,
197 G1CollectedHeap 195 G1CollectedHeap
198 }; 196 };
197
198 static inline size_t filler_array_max_size() {
199 return _filler_array_max_size;
200 }
199 201
200 virtual CollectedHeap::Name kind() const { return CollectedHeap::Abstract; } 202 virtual CollectedHeap::Name kind() const { return CollectedHeap::Abstract; }
201 203
202 /** 204 /**
203 * Returns JNI error code JNI_ENOMEM if memory could not be allocated, 205 * Returns JNI error code JNI_ENOMEM if memory could not be allocated,