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75 lines
2.1 KiB
75 lines
2.1 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include "chre/util/nanoapp/debug.h" |
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#include <cctype> |
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#include <cstdio> |
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#ifdef CHRE_NANOAPP_INTERNAL |
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#include "chre/platform/log.h" |
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#else |
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#define LOG_TAG "[DEBUG]" |
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#include "chre/util/nanoapp/log.h" |
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#endif |
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namespace chre { |
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void logBuffer(const uint8_t *buffer, size_t bufferSize) { |
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char line[32]; |
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char lineChars[32]; |
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size_t offset = 0; |
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size_t offsetChars = 0; |
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if (bufferSize > 128) { |
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LOGD("Dumping first 128 bytes of buffer @ %p, size %zu", |
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buffer, bufferSize); |
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bufferSize = 128; |
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} else { |
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LOGD("Dumping buffer @ %p, size %zu", buffer, bufferSize); |
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} |
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for (size_t i = 1; i <= bufferSize; i++) { |
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// This ignores potential errors returned by snprintf. This is a relatively |
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// simple case and the deliberate decision to ignore them has been made. |
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offset += static_cast<size_t>( |
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snprintf(&line[offset], sizeof(line) - offset, "%02x ", buffer[i - 1])); |
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offsetChars += static_cast<size_t>( |
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snprintf(&lineChars[offsetChars], sizeof(lineChars) - offsetChars, |
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"%c", (isprint(buffer[i - 1])) ? buffer[i - 1] : '.')); |
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if ((i % 8) == 0) { |
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LOGD(" %s\t%s", line, lineChars); |
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offset = 0; |
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offsetChars = 0; |
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} else if ((i % 4) == 0) { |
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offset += static_cast<size_t>( |
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snprintf(&line[offset], sizeof(line) - offset, " ")); |
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} |
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} |
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if (offset > 0) { |
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char tabs[8]; |
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char *pos = tabs; |
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while (offset < 28) { |
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*pos++ = '\t'; |
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offset += 8; |
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} |
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*pos = '\0'; |
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LOGD(" %s%s%s", line, tabs, lineChars); |
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} |
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} |
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} // namespace chre
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