| .\" |
| .\" This file and its contents are supplied under the terms of the |
| .\" Common Development and Distribution License ("CDDL"), version 1.0. |
| .\" You may only use this file in accordance with the terms of version |
| .\" 1.0 of the CDDL. |
| .\" |
| .\" A full copy of the text of the CDDL should have accompanied this |
| .\" source. A copy of the CDDL is also available via the Internet at |
| .\" http://www.illumos.org/license/CDDL. |
| .\" |
| .\" |
| .\" Copyright 2015 Joyent, Inc. |
| .\" |
| .Dd May 11, 2016 |
| .Dt PISSYSCALL 3PROC |
| .Os |
| .Sh NAME |
| .Nm Pissyscall , |
| .Nm Pissyscall_prev |
| .Nd determine if instructions are system call instructions |
| .Sh LIBRARY |
| .Lb libproc |
| .Sh SYNOPSIS |
| .In libproc.h |
| .Ft int |
| .Fo Pissyscall |
| .Fa "struct ps_prochandle *P" |
| .Fa "uintptr_t addr" |
| .Fc |
| .Ft int |
| .Fo Pissyscall_prev |
| .Fa "struct ps_prochandle *P" |
| .Fa "uintptr_t addr" |
| .Fa "uintptr_t *dst" |
| .Fc |
| .Sh DESCRIPTION |
| The |
| .Fn Pissyscall |
| function determines whether or not the instructions at |
| .Fa addr |
| in the process handle |
| .Fa P |
| corresponds to one of the architecture's system call instructions. |
| .Pp |
| the |
| .Fn Pissyscall_prev |
| function determines whether or not the instruction before |
| .Fa addr |
| in the process handle |
| .Fa P |
| corresponds to one of the architecture's system call instructions. |
| If it does, and |
| .Fa dst |
| is a |
| .Pf non- Dv NULL |
| pointer, then the address of the system call instruction will be copied |
| into the location pointed to by |
| .Fa dst . |
| .Sh RETURN VALUES |
| Upon successful completion, the |
| .Fn Pissyscall |
| function returns |
| .Sy non-zero |
| if |
| .Fa addr |
| corresponds to a system call instruction. |
| Otherwise, |
| .Sy 0 |
| is returned. |
| .Pp |
| Upon successful completion, the |
| .Fn Pissyscall_prev |
| function returns |
| .Sy non-zero |
| if |
| .Fa addr |
| corresponds to a system call instruction and if |
| .Fa dst |
| is |
| .Pf non- Dv NULL , |
| .Fa dst |
| is updated. |
| Otherwise, |
| .Sy 0 |
| is returned. |
| .Sh INTERFACE STABILITY |
| .Sy Uncommitted |
| .Sh MT-LEVEL |
| See |
| .Sy LOCKING |
| in |
| .Xr libproc 3LIB . |
| .Sh SEE ALSO |
| .Xr libproc 3LIB |