NAME
btrace
—
bug tracer
SYNOPSIS
btrace |
[-lnv ] [-p
pid] [-e
program | file] |
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
pid- Enable tracing on the indicated process ID (only one
-p
flag is permitted). -v
- Verbose mode. Causes
btrace
to print debugging messages. Multiple-v
options increase the verbosity. The maximum is 2.
EXIT STATUS
The btrace
utility exits 0 on
success, and >0 if an error occurs.
SEE ALSO
HISTORY
The btrace
utility first appeared in
OpenBSD 6.7.
AUTHORS
Martin Pieuchot <mpi@openbsd.org>