doc: move text describing --trace to specific .texi file

This text will be included to qemu-nbd/qemu-img mans in the next patches.
Signed-off-by: NDenis V. Lunev <den@openvz.org>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Message-id: 1466174654-30130-3-git-send-email-den@openvz.org
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

Makefile

@@ -564,6 +564,7 @@ qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi qemu-monitor-info.texi
 	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu.pod && \
 	  $(POD2MAN) --section=1 --center=" " --release=" " qemu.pod > $@, \
 	  "  GEN   $@")
+qemu.1: qemu-option-trace.texi
 
 qemu-img.1: qemu-img.texi qemu-img-cmds.texi
 	$(call quiet-command, \
@@ -595,7 +596,7 @@ info: qemu-doc.info qemu-tech.info
 pdf: qemu-doc.pdf qemu-tech.pdf
 
 qemu-doc.dvi qemu-doc.html qemu-doc.info qemu-doc.pdf: \
-	qemu-img.texi qemu-nbd.texi qemu-options.texi \
+	qemu-img.texi qemu-nbd.texi qemu-options.texi qemu-option-trace.texi \
 	qemu-monitor.texi qemu-img-cmds.texi qemu-ga.texi \
 	qemu-monitor-info.texi
 

qemu-option-trace.texi

+Specify tracing options.
+
+@table @option
+@item [enable=]@var{pattern}
+Immediately enable events matching @var{pattern}.
+The file must contain one event name (as listed in the @file{trace-events-all}
+file) per line; globbing patterns are accepted too.  This option is only
+available if QEMU has been compiled with the @var{simple}, @var{stderr}
+or @var{ftrace} tracing backend.  To specify multiple events or patterns,
+specify the @option{-trace} option multiple times.
+
+Use @code{-trace help} to print a list of names of trace points.
+
+@item events=@var{file}
+Immediately enable events listed in @var{file}.
+The file must contain one event name (as listed in the @file{trace-events-all}
+file) per line; globbing patterns are accepted too.  This option is only
+available if QEMU has been compiled with the @var{simple}, @var{stderr} or
+@var{ftrace} tracing backend.
+
+@item file=@var{file}
+Log output traces to @var{file}.
+This option is only available if QEMU has been compiled with
+the @var{simple} tracing backend.
+@end table

qemu-options.hx

@@ -3671,32 +3671,7 @@ HXCOMM This line is not accurate, as some sub-options are backend-specific but
 HXCOMM HX does not support conditional compilation of text.
 @item -trace [[enable=]@var{pattern}][,events=@var{file}][,file=@var{file}]
 @findex -trace
-
-Specify tracing options.
-
-@table @option
-@item [enable=]@var{pattern}
-Immediately enable events matching @var{pattern}.
-The file must contain one event name (as listed in the @file{trace-events-all}
-file) per line; globbing patterns are accepted too.  This option is only
-available if QEMU has been compiled with the @var{simple}, @var{stderr}
-or @var{ftrace} tracing backend.  To specify multiple events or patterns,
-specify the @option{-trace} option multiple times.
-
-Use @code{-trace help} to print a list of names of trace points.
-
-@item events=@var{file}
-Immediately enable events listed in @var{file}.
-The file must contain one event name (as listed in the @file{trace-events-all}
-file) per line; globbing patterns are accepted too.  This option is only
-available if QEMU has been compiled with the @var{simple}, @var{stderr} or
-@var{ftrace} tracing backend.
-
-@item file=@var{file}
-Log output traces to @var{file}.
-This option is only available if QEMU has been compiled with
-the @var{simple} tracing backend.
-@end table
+@include qemu-option-trace.texi
 ETEXI
 
 HXCOMM Internal use