Topic: gdb backtrace easy way

Tibor Topic Opener Joined: 2009-03-23, 22:24 Posts: 1377 One Elder of Players Location: Slovakia	Posted at: 2017-10-07, 21:51 Hi, This is to share with you an easy way how to get backtrace in case of crash on Linux, without deeper understanding how gdb tool works. Just use command like this: `gdb -batch -ex "run" -ex "bt" ${widelands binary with path if needed} > ${log with gdb output} 2>&1` So the entire command can look like: `gdb -batch -ex "run" -ex "bt" ./widelands >> gdb.log 2>&1` So this will start the game, just play as usual and if game crashes, the file gdb.log will contain all console output including gdb backtrace at the end of file. Than you can provide it as a part of bug report. Edited: 2017-10-07, 21:52 Top Quote

GunChleoc Joined: 2013-10-07, 14:56 Posts: 3324 One Elder of Players Location: RenderedRect	Posted at: 2017-10-09, 20:03 I think we should have this on https://wl.widelands.org/wiki/How%20to%20Write%20a%20Good%20Bug%20Report/ Busy indexing nil values Top Quote

Tibor Topic Opener Joined: 2009-03-23, 22:24 Posts: 1377 One Elder of Players Location: Slovakia	Posted at: 2017-10-09, 20:41 I was thinking about this... I added there item 6, please review it.... Top Quote

GunChleoc Joined: 2013-10-07, 14:56 Posts: 3324 One Elder of Players Location: RenderedRect	Posted at: 2017-10-14, 16:54 Thanks! Proofreading done Busy indexing nil values Top Quote

kaputtnik Joined: 2013-02-18, 19:48 Posts: 2439 OS: Archlinux Version: current master One Elder of Players Location: Germany	Posted at: 2017-10-16, 22:39 I want to suggest to add a ' LC_ALL=C' at the beginning of the command, to overwrite current localization: `LC_ALL=C gdb -batch -ex "run" -ex "bt" ./widelands >> gdb.log 2>&1` Otherwise on my system the output may contain unrecognized characters. Fight simulator for Widelands: https://wide-fighter.netlify.app/ Top Quote

Tibor Topic Opener Joined: 2009-03-23, 22:24 Posts: 1377 One Elder of Players Location: Slovakia	Posted at: 2017-10-17, 06:40 Good point. I updated the wiki accordingly. Top Quote