8131645: [ARM64] crash on Cavium when using G1
Summary: Add a fence when creating the CodeRootSetTable so the readers do not see invalid memory.
Reviewed-by: aph, tschatzl
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_VM_GC_G1_G1ALLOCATOR_INLINE_HPP
#define SHARE_VM_GC_G1_G1ALLOCATOR_INLINE_HPP
#include "gc/g1/g1Allocator.hpp"
#include "gc/g1/g1AllocRegion.inline.hpp"
#include "gc/shared/plab.inline.hpp"
HeapWord* G1Allocator::attempt_allocation(size_t word_size, AllocationContext_t context) {
return mutator_alloc_region(context)->attempt_allocation(word_size, false /* bot_updates */);
}
HeapWord* G1Allocator::attempt_allocation_locked(size_t word_size, AllocationContext_t context) {
HeapWord* result = mutator_alloc_region(context)->attempt_allocation_locked(word_size, false /* bot_updates */);
assert(result != NULL || mutator_alloc_region(context)->get() == NULL,
err_msg("Must not have a mutator alloc region if there is no memory, but is " PTR_FORMAT, p2i(mutator_alloc_region(context)->get())));
return result;
}
HeapWord* G1Allocator::attempt_allocation_force(size_t word_size, AllocationContext_t context) {
return mutator_alloc_region(context)->attempt_allocation_force(word_size, false /* bot_updates */);
}
inline HeapWord* G1PLABAllocator::plab_allocate(InCSetState dest,
size_t word_sz,
AllocationContext_t context) {
G1PLAB* buffer = alloc_buffer(dest, context);
if (_survivor_alignment_bytes == 0 || !dest.is_young()) {
return buffer->allocate(word_sz);
} else {
return buffer->allocate_aligned(word_sz, _survivor_alignment_bytes);
}
}
#endif // SHARE_VM_GC_G1_G1ALLOCATOR_HPP