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-rw-r--r--share/man/man4/filemon.423
1 files changed, 22 insertions, 1 deletions
diff --git a/share/man/man4/filemon.4 b/share/man/man4/filemon.4
index 585428b..fe0c430 100644
--- a/share/man/man4/filemon.4
+++ b/share/man/man4/filemon.4
@@ -31,7 +31,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd June 14, 2013
+.Dd January 28, 2016
.Dt FILEMON 4
.Os
.Sh NAME
@@ -49,6 +49,18 @@ responds to two
.Xr ioctl 2
calls.
.Pp
+.Nm
+is not intended to be a security auditing tool.
+Many syscalls are not tracked and binaries of foreign ABI will not be fully
+audited.
+It is intended for auditing of processes for the purpose of determining its
+dependencies in an efficient and easily parsable format.
+An example of this is
+.Xr make 1
+which uses this module with
+.Sy .MAKE.MODE=meta
+to handle incremental builds more smartly.
+.Pp
System calls are denoted using the following single letters:
.Pp
.Bl -tag -width indent -compact
@@ -172,3 +184,12 @@ A
.Nm
device appeared in
.Fx 9.1 .
+.Sh BUGS
+Loading
+.Nm
+may reduce system performance for the noted syscalls.
+.Pp
+Only children of the set process are logged.
+Processes can escape being traced by double forking.
+This is not seen as a problem as the intended use is build monitoring, which
+does not make sense to have daemons for.
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