1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 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 16 #ifndef PANDA_LIBPANDABASE_UTILS_BIT_MEMORY_REGION_INL_H_ 17 #define PANDA_LIBPANDABASE_UTILS_BIT_MEMORY_REGION_INL_H_ 18 19 #include "bit_memory_region.h" 20 21 #include <iomanip> 22 23 namespace panda { 24 25 template <typename Base> Dump(std::ostream & os)26void BitMemoryRegion<Base>::Dump(std::ostream &os) const 27 { 28 static constexpr size_t BITS_PER_HEX_DIGIT = 4; 29 os << "0x"; 30 static constexpr size_t BITS_PER_WORD = sizeof(size_t) * BITS_PER_BYTE; 31 if (Size() >= BITS_PER_WORD) { 32 bool is_zero = true; 33 size_t width = BITS_PER_WORD - (BITS_PER_HEX_DIGIT - Size() % BITS_PER_HEX_DIGIT); 34 for (ssize_t i = Size() - width; i >= 0; i -= width) { 35 auto val = Read(i, width); 36 if (val != 0 || !is_zero) { 37 // CODECHECK-NOLINTNEXTLINE(C_RULE_ID_FUNCTION_NESTING_LEVEL) 38 if (!is_zero) { 39 os << std::setw(static_cast<int>(width / BITS_PER_HEX_DIGIT)) << std::setfill('0'); 40 } 41 os << std::hex << val; 42 is_zero = false; 43 } 44 if (i == 0) { 45 break; 46 } 47 width = std::min<size_t>(i, BITS_PER_WORD); 48 } 49 if (is_zero) { 50 os << '0'; 51 } 52 } else { 53 os << std::hex << ReadAll(); 54 } 55 os << std::dec; 56 } 57 58 template <typename T> 59 inline std::ostream &operator<<(std::ostream &os, const BitMemoryRegion<T> ®ion) 60 { 61 region.Dump(os); 62 return os; 63 } 64 65 } // namespace panda 66 67 #endif // PANDA_LIBPANDABASE_UTILS_BIT_MEMORY_REGION_INL_H_ 68