= Mozilla rr
{c}
https://github.com/mozilla/rr
* https://stackoverflow.com/questions/1206872/go-to-previous-line-in-gdb/46996380\#46996380
* https://stackoverflow.com/questions/1470434/how-does-reverse-debugging-work/53063242\#53063242
* https://stackoverflow.com/questions/3649468/setting-breakpoint-in-gdb-where-the-function-returns/46116927\#46116927
* https://stackoverflow.com/questions/27770896/how-to-debug-a-rare-deadlock/50073993\#50073993
* https://stackoverflow.com/questions/522619/how-to-do-bidirectional-or-reverse-debugging-of-programs/50074106\#50074106 link only, marked as duplicate of go to previous line
* https://softwareengineering.stackexchange.com/questions/181527/why-is-reverse-debugging-rarely-used