.\" -*-nroff-*-
-.\" Copyright (c) 2012, 2013 Petr Machata, Red Hat Inc.
+.\" Copyright (c) 2012, 2013, 2014 Petr Machata, Red Hat Inc.
.\" Copyright (c) 1997-2005 Juan Cespedes <cespedes@debian.org>
.\"
.\" This program is free software; you can redistribute it and/or
.\"
.\" Output formatting:
.\"
-[\-F \fIpathlist\fR]
+[[\-F|\-\-config] \fIpathlist\fR]
[\-A \fImaxelts\fR] [\-s \fIstrsize\fR] [\-C|\-\-demangle]
[\-a|\-\-align \fIcolumn\fR] [\-n|\-\-indent \fInr\fR]
[\-o|\-\-output \fIfilename\fR]
this makes C++ function names readable.
.IP "\-D, \-\-debug \fRmask\fI"
Show debugging output of \fBltrace\fR itself. \fImask\fR is a number
-with internal meaning that's not really well defined at all.
-\fImask\fR of 77 shows all debug messages, which is what you usually
-need.
+describing which debug messages should be displayed. Use the option
+\-Dh to see what can be used, but note that currently the only
+reliable debugmask is 77, which shows all debug messages.
.IP "\-e \fIfilter"
A qualifying expression which modifies which library calls to trace.
The format of the filter expression is described in the section
currently traced processes as a result of the fork(2)
or clone(2) system calls.
The new process is attached immediately.
-.IP "\-F \fIpathlist"
+.IP "\-F, \-\-config \fIpathlist"
Contains a colon-separated list of paths. If a path refers to a
directory, that directory is considered when prototype libraries are
searched (see the section \fBPROTOTYPE LIBRARY DISCOVERY\fR). If it refers to
library are actually called, use \fB-x @\fIlibrary_pattern\fR instead.
.IP \-L
When no \-e option is given, don't assume the default action of
-\fB@MAIN\fR.
+\fB@MAIN\fR. In practice this means that library calls will not be
+traced.
.IP "\-n, \-\-indent \fInr"
Indent trace output by \fInr\fR spaces for each level of call
nesting. Using this option makes the program flow visualization easy
correct execution of setuid and/or setgid binaries.
.IP "\-w, \-\-where \fInr"
Show backtrace of \fInr\fR stack frames for each traced function. This
-option enabled only if libunwind support was enabled at compile time.
+option enabled only if elfutils or libunwind support was enabled at compile
+time.
.IP "\-x \fIfilter"
A qualifying expression which modifies which symbol table entry points
to trace. The format of the filter expression is described in the