1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_PROFILING_MEMORY_UTIL_H_ 18 #define SRC_PROFILING_MEMORY_UTIL_H_ 19 20 // Make sure the alignment is the same on 32 and 64 bit architectures. This 21 // is to ensure the structs below are laid out in exactly the same way for 22 // both of those, at the same build. 23 // The maximum alignment of every type T is sizeof(T), so we overalign that. 24 // E.g., the alignment for uint64_t is 4 bytes on 32, and 8 bytes on 64 bit. 25 #define PERFETTO_CROSS_ABI_ALIGNED(type) alignas(sizeof(type)) type 26 27 #endif // SRC_PROFILING_MEMORY_UTIL_H_ 28