by jesse

what is the equivalent to strace on openBSD?

openBSD uses ktrace and kdump instead of strace. ktrace monitors the process and writes its output to a file, ktrace.out by default. kdump interprets the data from ktrace into a human readable format. one of the args to ktrace can be a string telling it what to log, this is specified by -t, syscalls are specified by 'c'. for example: to monitor the syscalls made by hybserv i would do `ktrace -t c ./hybserv &`; then to view that output `kdump`. ktrace keeps monitoring untill the proccess stops, or you tell it to stop monitoring. to stop it monitoring all your proccess you do `ktrace -C`. you might want to delete ktrace.out, because it can use lots of disc space.


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