Hi, addr2line allows you to get the line number in the source code. The backtrace_symbolsfunction translates the information obtained from the backtracefunction into an array of strings. This offering gives us an opportunity to do so. Backtrace has sole discretion about project qualification for the Open Source exemption. Of course "module" must not be stripped. Generated on 2019-Mar-30 from project glibc revision glibc-2.29.9000-166-g656dd306d4 Powered by Code Browser 2.1 Generator usage only permitted with license. The source of reported errors cannot come from commercial uses of the software. It was made with the command‘bt 3’, so it shows the innermost three frames. Code Browser 2.1 Generator usage only permitted with license. Supposing a string "./module(function+0x15c) [0x8048a6d]" given by backtrace_symbols, to get the expected information just execute "echo 0x8048a6d | addr2line -e ./module". In addition to the usage limits detailed in the Offering, projects must have an open source license and cannot be sold commercially. require 'backtrace' log = Log. We use a number of open source projects in our software, and we wanted to give back to the community.
The argument buffershould be a pointer to an array of addresses obtained via the backtracefunction, and sizeis the number of entries in that array (the return value of backtrace). The backtrace also shows the source file name andline number, as well as the arguments to the function. Here is an example of a backtrace. Code Browser 2.1 Generator usage only permitted with license. Backtrace shortens crash and exception debugging time through automated capture, monitoring, deduplication, symbolication, and analysis. Generated on 2019-Mar-29 from project linux revision v5.1-rc2 Powered by Code Browser 2.1 Generator usage only permitted with license. new # it must implement method error(msg) Backtrace. Example open source projects Backtrace uses include Concurrency Kit , libcurl , http-parser , libcircmetrics , GHC , and React , and more. For UE4, Unity, C++ apps, and more! exec (swallow: true, log: log) do # do something dangerous end Sometimes you may need to hide unimportant lines of the backtrace, which are not related to your code base. The programcounter value is omitted if it is at the beginning of the code for thatline number.