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76 lines
2.1 KiB
76 lines
2.1 KiB
4 months ago
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/*
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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", buffer,
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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, "%c",
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(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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