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PROCCONTROL(1)		FreeBSD	General	Commands Manual		PROCCONTROL(1)

NAME
     proccontrol -- Control some process execution aspects

SYNOPSIS
     proccontrol -m mode [-s control] [-q] -p pid | command

DESCRIPTION
     The proccontrol command modifies the execution parameter of existing
     process specified by the pid argument, or starts execution	of the new
     program command with the execution	parameter set for it.

     Which execution parameter is changed, selected by the mandatory parameter
     mode.  Possible values for	mode are:

     aslr     Control the Address Space	Layout Randomization.  Only applicable
	      to the new process spawned.

     trace    Control the permission for debuggers to attach.  Note that
	      process is only allowed to enable	tracing	for itself, not	for
	      any other	process.

     trapcap  Controls the signalling of capability mode access	violations.

     protmax  Controls the implicit PROT_MAX application for mmap(2).

     kpti     Controls the KPTI	enable,	AMD64 only.

     la48     Control limiting usermode	process	address	space to 48 bits of
	      address, AMD64 only, on machines capable of 57-bit addressing.

     The control specifies if the selected mode	should be enabled or disabled.
     Possible values are enable	and disable, with the default value being
     enable if not specified.  See procctl(2) for detailed description of each
     mode effects and interaction with other process control facilities.

     The -q switch makes the utility query and print the current setting for
     the selected mode.	 The -q	requires the query target process specifica-
     tion with -p.

EXIT STATUS
     The proccontrol utility exits 0 on	success, and >0	if an error occurs.

EXAMPLES
     +o	 To disable debuggers attachment to the	process	1020, execute
	       proccontrol -m trace -s disable -p 1020

     +o	 To execute the	uniq(1)	program	in a mode where	capability access vio-
	 lations cause SIGTRAP delivery, do
	       proccontrol -m trapcap uniq

     +o	 To query the current ASLR enablement mode for the running process
	 1020, do
	       proccontrol -m aslr -q -p 1020

SEE ALSO
     kill(2), procctl(2), ptrace(2)

HISTORY
     The proccontrol command appeared in FreeBSD 10.0.

AUTHORS
     The proccontrol command and this manual page were written by Konstantin
     Belousov <kib@freebsd.org>	under sponsorship from The FreeBSD Foundation.

FreeBSD	13.0			 June 28, 2019			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

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