src/hotspot/share/jfr/utilities/jfrAllocation.cpp
changeset 50113 caf115bb98ad
child 50123 f222eba39694
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/utilities/jfrAllocation.cpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,139 @@
+/*
+ * 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/orderAccess.inline.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 = OrderAccess::load_acquire(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(alloc_size, &_allocated_bytes);
+    const jlong current_live_set = atomic_add_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 size_t total_deallocated = atomic_add_jlong(dealloc_size, &_deallocated_bytes);
+    const size_t current_live_set = atomic_add_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);
+}