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README
BSD-3-Clause

minilogger

A small logger with backtrace in signal handler

Usage

  • build option

Enable the following compile options if you need backtrace

target_compile_options(mytarget PRIVATE -g -ggdb -gdwarf)
target_compile_options(mytarget PRIVATE -rdynamic -funwind-tables)

On ARM, you need an extra environment if you need backtrace

UNW_ARM_UNWIND_METHOD=1 ./mytarget

the output will like:

trace_cpp[12328]: trace_cpp version 1.1
trace_cpp[12328]: Aborting (signal 11) [./trace_cpp]
trace_cpp[12328]: ++++++++ backtrace ++++++++
trace_cpp[12328]: Frame #00: (signal_handler(int)+0x1c) [0x10d30]
trace_cpp[12328]: Frame #01: (sigset+0x14c) [0x10d30]
trace_cpp[12328]: Frame #02: (crash()+0x8) [0x10b14]
trace_cpp[12328]: Frame #03: (main+0x30) [0x109e0]
trace_cpp[12328]: Frame #04: (_fini+0xc) [0x109e0]
trace_cpp[12328]: +++++++++++++++++++++++++++

and also in syslog

# tail -9 /var/log/messages
Mar  6 14:40:46 Puma daemon.info trace_cpp[11042]: trace_cpp version 1.1
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Aborting (signal 11) [./trace_cpp]
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: ++++++++ backtrace ++++++++
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Frame #00: (signal_handler(int)+0x1c) [0x10d30]^M
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Frame #01: (sigset+0x14c) [0x10d30]^M
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Frame #02: (crash()+0x8) [0x10b14]^M
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Frame #03: (main+0x30) [0x109e0]^M
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: Frame #04: (_fini+0xc) [0x109e0]^M
Mar  6 14:40:46 Puma daemon.err trace_cpp[11042]: +++++++++++++++++++++++++++
// Copyright 2019 Fuzhou Rockchip Electronics Co., Ltd // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // // 3. Neither the name of the copyright holder nor the names of its contributors // may be used to endorse or promote products derived from this software without // specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE.

简介

A mini logger for C/C++ 展开 收起
BSD-3-Clause
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