xref: /aosp_15_r20/external/perfetto/src/profiling/memory/util.h (revision 6dbdd20afdafa5e3ca9b8809fa73465d530080dc)
1*6dbdd20aSAndroid Build Coastguard Worker /*
2*6dbdd20aSAndroid Build Coastguard Worker  * Copyright (C) 2021 The Android Open Source Project
3*6dbdd20aSAndroid Build Coastguard Worker  *
4*6dbdd20aSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*6dbdd20aSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*6dbdd20aSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*6dbdd20aSAndroid Build Coastguard Worker  *
8*6dbdd20aSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*6dbdd20aSAndroid Build Coastguard Worker  *
10*6dbdd20aSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*6dbdd20aSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*6dbdd20aSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*6dbdd20aSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*6dbdd20aSAndroid Build Coastguard Worker  * limitations under the License.
15*6dbdd20aSAndroid Build Coastguard Worker  */
16*6dbdd20aSAndroid Build Coastguard Worker 
17*6dbdd20aSAndroid Build Coastguard Worker #ifndef SRC_PROFILING_MEMORY_UTIL_H_
18*6dbdd20aSAndroid Build Coastguard Worker #define SRC_PROFILING_MEMORY_UTIL_H_
19*6dbdd20aSAndroid Build Coastguard Worker 
20*6dbdd20aSAndroid Build Coastguard Worker // Make sure the alignment is the same on 32 and 64 bit architectures. This
21*6dbdd20aSAndroid Build Coastguard Worker // is to ensure the structs below are laid out in exactly the same way for
22*6dbdd20aSAndroid Build Coastguard Worker // both of those, at the same build.
23*6dbdd20aSAndroid Build Coastguard Worker // The maximum alignment of every type T is sizeof(T), so we overalign that.
24*6dbdd20aSAndroid Build Coastguard Worker // E.g., the alignment for uint64_t is 4 bytes on 32, and 8 bytes on 64 bit.
25*6dbdd20aSAndroid Build Coastguard Worker #define PERFETTO_CROSS_ABI_ALIGNED(type) alignas(sizeof(type)) type
26*6dbdd20aSAndroid Build Coastguard Worker 
27*6dbdd20aSAndroid Build Coastguard Worker #endif  // SRC_PROFILING_MEMORY_UTIL_H_
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