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/*
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* Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "jfr/recorder/jfrRecorder.hpp"
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#include "jfr/utilities/jfrAllocation.hpp"
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#include "logging/log.hpp"
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#include "memory/allocation.inline.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/orderAccess.inline.hpp"
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#include "runtime/vm_version.hpp"
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#include "utilities/debug.hpp"
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#include "utilities/macros.hpp"
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#include "utilities/nativeCallStack.hpp"
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#ifdef ASSERT
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static jlong atomic_add_jlong(jlong value, jlong volatile* const dest) {
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assert(VM_Version::supports_cx8(), "unsupported");
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jlong compare_value;
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jlong exchange_value;
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do {
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compare_value = OrderAccess::load_acquire(dest);
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exchange_value = compare_value + value;
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} while (Atomic::cmpxchg(exchange_value, dest, compare_value) != compare_value);
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return exchange_value;
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}
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// debug statistics
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static volatile jlong _allocated_bytes = 0;
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static volatile jlong _deallocated_bytes = 0;
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static volatile jlong _live_set_bytes = 0;
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static void add(size_t alloc_size) {
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if (!JfrRecorder::is_created()) {
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const jlong total_allocated = atomic_add_jlong(alloc_size, &_allocated_bytes);
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const jlong current_live_set = atomic_add_jlong(alloc_size, &_live_set_bytes);
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log_trace(jfr, system)("Allocation: [" SIZE_FORMAT "] bytes", alloc_size);
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log_trace(jfr, system)("Total alloc [" JLONG_FORMAT "] bytes", total_allocated);
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log_trace(jfr, system)("Liveset: [" JLONG_FORMAT "] bytes", current_live_set);
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}
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}
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static void subtract(size_t dealloc_size) {
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if (!JfrRecorder::is_created()) {
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const size_t total_deallocated = atomic_add_jlong(dealloc_size, &_deallocated_bytes);
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const size_t current_live_set = atomic_add_jlong(dealloc_size * -1, &_live_set_bytes);
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log_trace(jfr, system)("Deallocation: [" SIZE_FORMAT "] bytes", dealloc_size);
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log_trace(jfr, system)("Total dealloc [" JLONG_FORMAT "] bytes", total_deallocated);
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log_trace(jfr, system)("Liveset: [" JLONG_FORMAT "] bytes", current_live_set);
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}
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}
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static void hook_memory_deallocation(size_t dealloc_size) {
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subtract(dealloc_size);
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}
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#endif // ASSERT
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static void hook_memory_allocation(const char* allocation, size_t alloc_size) {
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if (NULL == allocation) {
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if (!JfrRecorder::is_created()) {
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log_warning(jfr, system)("Memory allocation failed for size [" SIZE_FORMAT "] bytes", alloc_size);
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return;
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} else {
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// after critical startup, fail as by default
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vm_exit_out_of_memory(alloc_size, OOM_MALLOC_ERROR, "AllocateHeap");
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}
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}
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debug_only(add(alloc_size));
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}
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void JfrCHeapObj::on_memory_allocation(const void* allocation, size_t size) {
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hook_memory_allocation((const char*)allocation, size);
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}
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void* JfrCHeapObj::operator new(size_t size) throw() {
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return operator new(size, std::nothrow);
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}
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void* JfrCHeapObj::operator new (size_t size, const std::nothrow_t& nothrow_constant) throw() {
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void* const memory = CHeapObj<mtTracing>::operator new(size, nothrow_constant, CALLER_PC);
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hook_memory_allocation((const char*)memory, size);
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return memory;
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}
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void* JfrCHeapObj::operator new [](size_t size) throw() {
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return operator new[](size, std::nothrow);
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}
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void* JfrCHeapObj::operator new [](size_t size, const std::nothrow_t& nothrow_constant) throw() {
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void* const memory = CHeapObj<mtTracing>::operator new[](size, nothrow_constant, CALLER_PC);
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hook_memory_allocation((const char*)memory, size);
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return memory;
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}
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void JfrCHeapObj::operator delete(void* p, size_t size) {
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debug_only(hook_memory_deallocation(size);)
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CHeapObj<mtTracing>::operator delete(p);
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}
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void JfrCHeapObj::operator delete[](void* p, size_t size) {
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debug_only(hook_memory_deallocation(size);)
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CHeapObj<mtTracing>::operator delete[](p);
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}
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char* JfrCHeapObj::realloc_array(char* old, size_t size) {
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char* const memory = ReallocateHeap(old, size, mtTracing, AllocFailStrategy::RETURN_NULL);
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hook_memory_allocation(memory, size);
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return memory;
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}
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void JfrCHeapObj::free(void* p, size_t size) {
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debug_only(hook_memory_deallocation(size);)
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FreeHeap(p);
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}
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char* JfrCHeapObj::allocate_array_noinline(size_t elements, size_t element_size) {
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return AllocateHeap(elements * element_size, mtTracing, CALLER_PC, AllocFailStrategy::RETURN_NULL);
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}
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