| ktrace.2 (108028) | ktrace.2 (108087) |
|---|---|
| 1.\" Copyright (c) 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)ktrace.2 8.1 (Berkeley) 6/4/93 | 1.\" Copyright (c) 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)ktrace.2 8.1 (Berkeley) 6/4/93 |
| 33.\" $FreeBSD: head/lib/libc/sys/ktrace.2 108028 2002-12-18 09:22:32Z ru $ | 33.\" $FreeBSD: head/lib/libc/sys/ktrace.2 108087 2002-12-19 09:40:28Z ru $ |
| 34.\" 35.Dd June 4, 1993 36.Dt KTRACE 2 37.Os 38.Sh NAME 39.Nm ktrace 40.Nd process tracing 41.Sh LIBRARY --- 9 unchanged lines hidden (view full) --- 51The 52.Fn ktrace 53system call enables or disables tracing of one or more processes. 54Users may only trace their own processes. 55Only the super-user can trace setuid or setgid programs. 56.Pp 57The 58.Fa tracefile | 34.\" 35.Dd June 4, 1993 36.Dt KTRACE 2 37.Os 38.Sh NAME 39.Nm ktrace 40.Nd process tracing 41.Sh LIBRARY --- 9 unchanged lines hidden (view full) --- 51The 52.Fn ktrace 53system call enables or disables tracing of one or more processes. 54Users may only trace their own processes. 55Only the super-user can trace setuid or setgid programs. 56.Pp 57The 58.Fa tracefile |
| 59argument |
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| 59gives the pathname of the file to be used for tracing. 60The file must exist and be a regular file writable by the calling process. 61All trace records are always appended to the file, 62so the file must be truncated to zero length to discard 63previous trace data. 64If tracing points are being disabled (see KTROP_CLEAR below), 65.Fa tracefile 66may be NULL. 67.Pp 68The 69.Fa ops | 60gives the pathname of the file to be used for tracing. 61The file must exist and be a regular file writable by the calling process. 62All trace records are always appended to the file, 63so the file must be truncated to zero length to discard 64previous trace data. 65If tracing points are being disabled (see KTROP_CLEAR below), 66.Fa tracefile 67may be NULL. 68.Pp 69The 70.Fa ops |
| 70parameter specifies the requested ktrace operation. | 71argument specifies the requested ktrace operation. |
| 71The defined operations are: 72.Bl -column KTRFLAG_DESCENDXXX -offset indent 73.It "KTROP_SET Enable trace points specified in" 74.Fa trpoints . 75.It "KTROP_CLEAR Disable trace points specified in 76.Fa trpoints . 77.It "KTROP_CLEARFILE Stop all tracing." 78.It "KTRFLAG_DESCEND The tracing change should apply to the" 79specified process and all its current children. 80.El 81.Pp 82The 83.Fa trpoints | 72The defined operations are: 73.Bl -column KTRFLAG_DESCENDXXX -offset indent 74.It "KTROP_SET Enable trace points specified in" 75.Fa trpoints . 76.It "KTROP_CLEAR Disable trace points specified in 77.Fa trpoints . 78.It "KTROP_CLEARFILE Stop all tracing." 79.It "KTRFLAG_DESCEND The tracing change should apply to the" 80specified process and all its current children. 81.El 82.Pp 83The 84.Fa trpoints |
| 84parameter specifies the trace points of interest. | 85argument specifies the trace points of interest. |
| 85The defined trace points are: 86.Bl -column KTRFAC_SYSCALLXXX -offset indent 87.It "KTRFAC_SYSCALL Trace system calls." 88.It "KTRFAC_SYSRET Trace return values from system calls." 89.It "KTRFAC_NAMEI Trace name lookup operations." 90.It "KTRFAC_GENIO Trace all I/O (note that this option can" 91generate much output). 92.It "KTRFAC_PSIG Trace posted signals." --- 78 unchanged lines hidden --- | 86The defined trace points are: 87.Bl -column KTRFAC_SYSCALLXXX -offset indent 88.It "KTRFAC_SYSCALL Trace system calls." 89.It "KTRFAC_SYSRET Trace return values from system calls." 90.It "KTRFAC_NAMEI Trace name lookup operations." 91.It "KTRFAC_GENIO Trace all I/O (note that this option can" 92generate much output). 93.It "KTRFAC_PSIG Trace posted signals." --- 78 unchanged lines hidden --- |