1.\" 2.\" This file and its contents are supplied under the terms of the 3.\" Common Development and Distribution License ("CDDL"), version 1.0. 4.\" You may only use this file in accordance with the terms of version 5.\" 1.0 of the CDDL. 6.\" 7.\" A full copy of the text of the CDDL should have accompanied this 8.\" source. A copy of the CDDL is also available via the Internet at 9.\" http://www.illumos.org/license/CDDL. 10.\" 11.\" 12.\" Copyright 2015 Joyent, Inc. 13.\" 14.Dd May 11, 2016 15.Dt PSETSYSENTRY 3PROC 16.Os 17.Sh NAME 18.Nm Psetsysentry , 19.Nm Psetsysexit 20.Nd set system call tracing flags 21.Sh LIBRARY 22.Lb libproc 23.Sh SYNOPSIS 24.In libproc.h 25.Ft void 26.Fo Psetsysentry 27.Fa "struct ps_prochandle *P" 28.Fa "const sysset_t *set" 29.Fc 30.Ft void 31.Fo Psetsysexit 32.Fa "struct ps_prochandle *P" 33.Fa "const sysset_t *set" 34.Fc 35.Sh DESCRIPTION 36The 37.Fn Psetsysentry 38and 39.Fn Psetsysexit 40set the system call entry and exit tracing flags respectively in the 41process handle 42.Fa P 43to 44.Fa set . 45The call to 46.Fn Psetsysentry 47or 48.Fn Psetsysexit 49replaces the corresponding set of system call tracing flags entirely 50with the new set. 51The system call entry tracing flags cause a thread to stop on entry to the 52system call and the exit tracing flags cause a thread to stop on return from the 53system call, before control returns back to the user land process. 54For more information on the state of the thread and for information on 55manipulating the 56.Sy sysset_t , 57see 58.Xr proc 4 . 59.Pp 60Note that only active processes may have their system call tracing flags 61updated. 62Process handles that refer to core files, zombie processes, and files do not 63have fault tracing flags and this function is a no-op on them. 64.Sh INTERFACE STABILITY 65.Sy Uncommitted 66.Sh MT-LEVEL 67See 68.Sy LOCKING 69in 70.Xr libproc 3LIB . 71.Sh SEE ALSO 72.Xr Intro 2 , 73.Xr libproc 3LIB , 74.Xr proc 4 75