1 // Copyright 2020 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef COMMON_ALLOC_H_ 16 #define COMMON_ALLOC_H_ 17 18 #include <cstddef> 19 #include <new> 20 21 template <typename T> AllocNoThrow(size_t count)22T* AllocNoThrow(size_t count) { 23 #if defined(ADDRESS_SANITIZER) 24 if (count * sizeof(T) >= 0x70000000) { 25 // std::nothrow isn't implemented on ASAN and it has a 2GB allocation limit. 26 // Catch large allocations and error out so fuzzers make progress. 27 return nullptr; 28 } 29 #endif 30 return new (std::nothrow) T[count]; 31 } 32 33 #endif // COMMON_ALLOC_H_ 34