BTRACE(8) FreeBSD System Manager's Manual BTRACE(8)
NAME
btrace - bug tracer
SYNOPSIS
btrace [-lnv] [-e program | file] [-p file] [argument ...]
DESCRIPTION
The btrace utility provides an interface to inspect the internals of the
system and programs. It interprets the bt(5) program in file and
communicates with the dynamic tracer device using the interface described
in dt(4).
The options are as follows:
-e program
Execute program.
-l List all available probes.
-n No action. Parse the program and then exit.
-p file
Load symbols from file to convert ustack addresses into function
names.
-v Verbose mode. Causes btrace to print debugging messages.
Multiple -v options increase the verbosity. The maximum is 2.
FILES
/usr/share/btrace/* collection of useful btrace programs
EXIT STATUS
The btrace utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
dt(4), bt(5)
HISTORY
The btrace utility first appeared in OpenBSD 6.7.
AUTHORS
Martin Pieuchot <
[email protected]>
FreeBSD 14.1-RELEASE-p8 September 15, 2023 FreeBSD 14.1-RELEASE-p8