| /* |
| * Copyright (c) 2014, 2018, 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "jfr/recorder/jfrRecorder.hpp" |
| #include "jfr/utilities/jfrAllocation.hpp" |
| #include "logging/log.hpp" |
| #include "memory/allocation.inline.hpp" |
| #include "runtime/atomic.hpp" |
| #include "runtime/vm_version.hpp" |
| #include "utilities/debug.hpp" |
| #include "utilities/macros.hpp" |
| #include "utilities/nativeCallStack.hpp" |
| |
| #ifdef ASSERT |
| static jlong atomic_add_jlong(jlong value, jlong volatile* const dest) { |
| assert(VM_Version::supports_cx8(), "unsupported"); |
| jlong compare_value; |
| jlong exchange_value; |
| do { |
| compare_value = *dest; |
| exchange_value = compare_value + value; |
| } while (Atomic::cmpxchg(exchange_value, dest, compare_value) != compare_value); |
| return exchange_value; |
| } |
| |
| // debug statistics |
| static volatile jlong _allocated_bytes = 0; |
| static volatile jlong _deallocated_bytes = 0; |
| static volatile jlong _live_set_bytes = 0; |
| |
| static void add(size_t alloc_size) { |
| if (!JfrRecorder::is_created()) { |
| const jlong total_allocated = atomic_add_jlong((jlong)alloc_size, &_allocated_bytes); |
| const jlong current_live_set = atomic_add_jlong((jlong)alloc_size, &_live_set_bytes); |
| log_trace(jfr, system)("Allocation: [" SIZE_FORMAT "] bytes", alloc_size); |
| log_trace(jfr, system)("Total alloc [" JLONG_FORMAT "] bytes", total_allocated); |
| log_trace(jfr, system)("Liveset: [" JLONG_FORMAT "] bytes", current_live_set); |
| } |
| } |
| |
| static void subtract(size_t dealloc_size) { |
| if (!JfrRecorder::is_created()) { |
| const jlong total_deallocated = atomic_add_jlong((jlong)dealloc_size, &_deallocated_bytes); |
| const jlong current_live_set = atomic_add_jlong(((jlong)dealloc_size * -1), &_live_set_bytes); |
| log_trace(jfr, system)("Deallocation: [" SIZE_FORMAT "] bytes", dealloc_size); |
| log_trace(jfr, system)("Total dealloc [" JLONG_FORMAT "] bytes", total_deallocated); |
| log_trace(jfr, system)("Liveset: [" JLONG_FORMAT "] bytes", current_live_set); |
| } |
| } |
| |
| static void hook_memory_deallocation(size_t dealloc_size) { |
| subtract(dealloc_size); |
| } |
| #endif // ASSERT |
| |
| static void hook_memory_allocation(const char* allocation, size_t alloc_size) { |
| if (NULL == allocation) { |
| if (!JfrRecorder::is_created()) { |
| log_warning(jfr, system)("Memory allocation failed for size [" SIZE_FORMAT "] bytes", alloc_size); |
| return; |
| } else { |
| // after critical startup, fail as by default |
| vm_exit_out_of_memory(alloc_size, OOM_MALLOC_ERROR, "AllocateHeap"); |
| } |
| } |
| debug_only(add(alloc_size)); |
| } |
| |
| void JfrCHeapObj::on_memory_allocation(const void* allocation, size_t size) { |
| hook_memory_allocation((const char*)allocation, size); |
| } |
| |
| void* JfrCHeapObj::operator new(size_t size) throw() { |
| return operator new(size, std::nothrow); |
| } |
| |
| void* JfrCHeapObj::operator new (size_t size, const std::nothrow_t& nothrow_constant) throw() { |
| void* const memory = CHeapObj<mtTracing>::operator new(size, nothrow_constant, CALLER_PC); |
| hook_memory_allocation((const char*)memory, size); |
| return memory; |
| } |
| |
| void* JfrCHeapObj::operator new [](size_t size) throw() { |
| return operator new[](size, std::nothrow); |
| } |
| |
| void* JfrCHeapObj::operator new [](size_t size, const std::nothrow_t& nothrow_constant) throw() { |
| void* const memory = CHeapObj<mtTracing>::operator new[](size, nothrow_constant, CALLER_PC); |
| hook_memory_allocation((const char*)memory, size); |
| return memory; |
| } |
| |
| void JfrCHeapObj::operator delete(void* p, size_t size) { |
| debug_only(hook_memory_deallocation(size);) |
| CHeapObj<mtTracing>::operator delete(p); |
| } |
| |
| void JfrCHeapObj::operator delete[](void* p, size_t size) { |
| debug_only(hook_memory_deallocation(size);) |
| CHeapObj<mtTracing>::operator delete[](p); |
| } |
| |
| char* JfrCHeapObj::realloc_array(char* old, size_t size) { |
| char* const memory = ReallocateHeap(old, size, mtTracing, AllocFailStrategy::RETURN_NULL); |
| hook_memory_allocation(memory, size); |
| return memory; |
| } |
| |
| void JfrCHeapObj::free(void* p, size_t size) { |
| debug_only(hook_memory_deallocation(size);) |
| FreeHeap(p); |
| } |
| |
| char* JfrCHeapObj::allocate_array_noinline(size_t elements, size_t element_size) { |
| return AllocateHeap(elements * element_size, mtTracing, CALLER_PC, AllocFailStrategy::RETURN_NULL); |
| } |