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src/share/vm/memory/allocation.inline.hpp@eac371996b44 (annotated)

src/share/vm/memory/allocation.inline.hpp

Tue, 12 Mar 2013 08:33:57 +0100

author

brutisso

date

Tue, 12 Mar 2013 08:33:57 +0100

changeset 4741

eac371996b44

parent 4675

63e54c37ac64

child 4901

83f27710f5f7

permissions

-rw-r--r--

8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
Summary: Take the initial heap size into account when checking the heap size for compressed oops
Reviewed-by: jmasa, kvn, hseigel, ctornqvi

duke@435	1	/*
simonis@4675	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
stefank@2314	26	#define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
stefank@2314	27
simonis@4675	28	#include "runtime/atomic.inline.hpp"
stefank@2314	29	#include "runtime/os.hpp"
stefank@2314	30
duke@435	31	// Explicit C-heap memory management
duke@435	32
duke@435	33	void trace_heap_malloc(size_t size, const char* name, void *p);
duke@435	34	void trace_heap_free(void *p);
duke@435	35
kvn@2562	36	#ifndef PRODUCT
kvn@2557	37	// Increments unsigned long value for statistics (not atomic on MP).
kvn@2557	38	inline void inc_stat_counter(volatile julong* dest, julong add_value) {
kvn@2562	39	#if defined(SPARC) || defined(X86)
kvn@2562	40	// Sparc and X86 have atomic jlong (8 bytes) instructions
kvn@2557	41	julong value = Atomic::load((volatile jlong*)dest);
kvn@2557	42	value += add_value;
kvn@2557	43	Atomic::store((jlong)value, (volatile jlong*)dest);
kvn@2562	44	#else
kvn@2562	45	// possible word-tearing during load/store
kvn@2562	46	*dest += add_value;
kvn@2562	47	#endif
kvn@2557	48	}
kvn@2562	49	#endif
duke@435	50
duke@435	51	// allocate using malloc; will fail if no memory available
nloodin@4183	52	inline char* AllocateHeap(size_t size, MEMFLAGS flags, address pc = 0,
nloodin@4183	53	AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
zgu@3900	54	if (pc == 0) {
zgu@3900	55	pc = CURRENT_PC;
zgu@3900	56	}
zgu@3900	57	char* p = (char*) os::malloc(size, flags, pc);
duke@435	58	#ifdef ASSERT
zgu@3900	59	if (PrintMallocFree) trace_heap_malloc(size, "AllocateHeap", p);
duke@435	60	#endif
nloodin@4183	61	if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) vm_exit_out_of_memory(size, "AllocateHeap");
duke@435	62	return p;
duke@435	63	}
duke@435	64
nloodin@4183	65	inline char* ReallocateHeap(char *old, size_t size, MEMFLAGS flags,
nloodin@4183	66	AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
zgu@3900	67	char* p = (char*) os::realloc(old, size, flags, CURRENT_PC);
duke@435	68	#ifdef ASSERT
zgu@3900	69	if (PrintMallocFree) trace_heap_malloc(size, "ReallocateHeap", p);
duke@435	70	#endif
nloodin@4183	71	if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) vm_exit_out_of_memory(size, "ReallocateHeap");
duke@435	72	return p;
duke@435	73	}
duke@435	74
zgu@3900	75	inline void FreeHeap(void* p, MEMFLAGS memflags = mtInternal) {
duke@435	76	#ifdef ASSERT
duke@435	77	if (PrintMallocFree) trace_heap_free(p);
duke@435	78	#endif
zgu@3900	79	os::free(p, memflags);
duke@435	80	}
stefank@2314	81
zgu@3900	82
zgu@3900	83	template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size,
zgu@3900	84	address caller_pc){
zgu@3900	85	#ifdef ASSERT
zgu@3900	86	void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC));
zgu@3900	87	if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
zgu@3900	88	return p;
zgu@3900	89	#else
zgu@3900	90	return (void *) AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC));
zgu@3900	91	#endif
zgu@3900	92	}
zgu@3900	93
zgu@3900	94	template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size,
zgu@3900	95	const std::nothrow_t& nothrow_constant, address caller_pc) {
zgu@3900	96	#ifdef ASSERT
nloodin@4183	97	void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC),
nloodin@4183	98	AllocFailStrategy::RETURN_NULL);
zgu@3900	99	if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
zgu@3900	100	return p;
zgu@3900	101	#else
nloodin@4183	102	return (void *) AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC),
nloodin@4183	103	AllocFailStrategy::RETURN_NULL);
zgu@3900	104	#endif
zgu@3900	105	}
zgu@3900	106
zgu@3900	107	template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){
zgu@3900	108	FreeHeap(p, F);
zgu@3900	109	}
zgu@3900	110
zgu@3900	111
stefank@2314	112	#endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP