PSETSYSENTRY(3PROC) Process Control Library Functions PSETSYSENTRY(3PROC)

NAME

Psetsysentry, Psetsysexit - set system call tracing flags

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

void
Psetsysentry(struct ps_prochandle *P, const sysset_t *set);

void
Psetsysexit(struct ps_prochandle *P, const sysset_t *set);

DESCRIPTION

The Psetsysentry() and Psetsysexit() set the system call entry and exit
tracing flags respectively in the process handle P to set. The call to
Psetsysentry() or Psetsysexit() replaces the corresponding set of
system call tracing flags entirely with the new set. The system call
entry tracing flags cause a thread to stop on entry to the system call
and the exit tracing flags cause a thread to stop on return from the
system call, before control returns back to the user land process. For
more information on the state of the thread and for information on
manipulating the sysset_t, see proc(5).

Note that only active processes may have their system call tracing
flags updated. Process handles that refer to core files, zombie
processes, and files do not have fault tracing flags and this function
is a no-op on them.

INTERFACE STABILITY

Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO

Intro(2), libproc(3LIB), proc(5)

illumos May 11, 2016 illumos