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-rw-r--r--doc/strace.1.in17
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/strace.1.in b/doc/strace.1.in
index c40d9b7ba..16a94fc7d 100644
--- a/doc/strace.1.in
+++ b/doc/strace.1.in
@@ -251,6 +251,7 @@ where
.I qualifier
is one of
.BR trace " (or " t ),
+.BR trace\-fds " (or " trace\-fd " or " fd " or " fds ),
.BR abbrev " (or " a ),
.BR verbose " (or " v ),
.BR raw " (or " x ),
@@ -659,6 +660,21 @@ about the user/kernel boundary if only a subset of system calls
are being monitored. The default is
.BR trace = all .
.TP
+\fB\-e\ trace\-fd\fR=\,\fIset\fR
+.TQ
+\fB\-e\ trace\-fds\fR=\,\fIset\fR
+.TQ
+\fB\-e\ fd\fR=\,\fIset\fR
+.TQ
+\fB\-e\ fds\fR=\,\fIset\fR
+.TQ
+\fB\-\-trace\-fds\fR=\,\fIset\fR
+Trace only the syscalls that operate
+on the specified subset of (non-negative) file descriptors.
+Note that usage of this option also filters out all the syscalls
+that do not operate on file descriptors at all.
+Applies in (inclusive) disjunction with the \fB\-\-trace\-path\fR option.
+.TP
\fB\-e\ signal\fR=\,\fIset\fR
.TQ
\fB\-e\ signals\fR=\,\fIset\fR
@@ -739,6 +755,7 @@ Trace only system calls accessing
Multiple
.B \-P
options can be used to specify several paths.
+Applies in (inclusive) disjunction with the \fB\-\-trace\-fds\fR option.
.TP
.B \-z
.TQ