Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2016 The Android Open Source Project |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This file implements interfaces from the file jvmti.h. This implementation |
| 5 | * is licensed under the same terms as the file jvmti.h. The |
| 6 | * copyright and license information for the file jvmti.h follows. |
| 7 | * |
| 8 | * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
| 9 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 10 | * |
| 11 | * This code is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License version 2 only, as |
| 13 | * published by the Free Software Foundation. Oracle designates this |
| 14 | * particular file as subject to the "Classpath" exception as provided |
| 15 | * by Oracle in the LICENSE file that accompanied this code. |
| 16 | * |
| 17 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 20 | * version 2 for more details (a copy is included in the LICENSE file that |
| 21 | * accompanied this code). |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License version |
| 24 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 25 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 26 | * |
| 27 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 28 | * or visit www.oracle.com if you need additional information or have any |
| 29 | * questions. |
| 30 | */ |
| 31 | |
| 32 | #include "ti_allocator.h" |
| 33 | |
Alex Light | 8ddfd9f | 2017-07-05 16:33:46 -0700 | [diff] [blame^] | 34 | #include <malloc.h> |
| 35 | #include <atomic> |
| 36 | |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 37 | #include "art_jvmti.h" |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 38 | #include "base/enums.h" |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 39 | |
| 40 | namespace openjdkjvmti { |
| 41 | |
Alex Light | 8ddfd9f | 2017-07-05 16:33:46 -0700 | [diff] [blame^] | 42 | std::atomic<jlong> AllocUtil::allocated; |
| 43 | |
| 44 | jvmtiError AllocUtil::GetGlobalJvmtiAllocationState(jvmtiEnv* env ATTRIBUTE_UNUSED, |
| 45 | jlong* allocated_ptr) { |
| 46 | if (allocated_ptr == nullptr) { |
| 47 | return ERR(NULL_POINTER); |
| 48 | } |
| 49 | *allocated_ptr = allocated.load(); |
| 50 | return OK; |
| 51 | } |
| 52 | |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 53 | jvmtiError AllocUtil::Allocate(jvmtiEnv* env ATTRIBUTE_UNUSED, |
| 54 | jlong size, |
| 55 | unsigned char** mem_ptr) { |
| 56 | if (size < 0) { |
| 57 | return ERR(ILLEGAL_ARGUMENT); |
| 58 | } else if (size == 0) { |
| 59 | *mem_ptr = nullptr; |
| 60 | return OK; |
| 61 | } |
Alex Light | 8ddfd9f | 2017-07-05 16:33:46 -0700 | [diff] [blame^] | 62 | *mem_ptr = reinterpret_cast<unsigned char*>(malloc(size)); |
| 63 | if (UNLIKELY(*mem_ptr == nullptr)) { |
| 64 | return ERR(OUT_OF_MEMORY); |
| 65 | } |
| 66 | allocated += malloc_usable_size(*mem_ptr); |
| 67 | return OK; |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 68 | } |
| 69 | |
| 70 | jvmtiError AllocUtil::Deallocate(jvmtiEnv* env ATTRIBUTE_UNUSED, unsigned char* mem) { |
| 71 | if (mem != nullptr) { |
Alex Light | 8ddfd9f | 2017-07-05 16:33:46 -0700 | [diff] [blame^] | 72 | allocated -= malloc_usable_size(mem); |
Alex Light | bf64a57 | 2017-07-05 10:34:49 -0700 | [diff] [blame] | 73 | free(mem); |
| 74 | } |
| 75 | return OK; |
| 76 | } |
| 77 | |
| 78 | } // namespace openjdkjvmti |