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<HTML
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><HEAD
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><TITLE
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>Running a Synthetic Target Application</TITLE
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TITLE="eCos Reference Manual"
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TITLE="eCos Synthetic Target"
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TITLE="Installation"
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TITLE="The I/O Auxiliary's User Interface"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>eCos Reference Manual</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="synth-install.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="synth-gui.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
80 
><H1
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><A
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NAME="SYNTH-RUNNING">Running a Synthetic Target Application</H1
83 
><DIV
84 
CLASS="REFNAMEDIV"
85 
><A
86 
NAME="AEN17751"
87 
></A
88 
><H2
89 
>Name</H2
90 
>Execution&nbsp;--&nbsp;Arguments and configuration files</DIV
91 
><DIV
92 
CLASS="REFSECT1"
93 
><A
94 
NAME="SYNTH-RUNNING-DESCRIPTION"
95 
></A
96 
><H2
97 
>Description</H2
98 
><P
99 
>The procedure for configuring and building eCos and an application for
100 
the synthetic target is the same as for any other eCos target. Once an
101 
executable has been built it can be run like any Linux program, for
102 
example from a shell prompt,
103 
    </P
104 
><TABLE
105 
BORDER="5"
106 
BGCOLOR="#E0E0F0"
107 
WIDTH="70%"
108 
><TR
109 
><TD
110 
><PRE
111 
CLASS="SCREEN"
112 
>$ ecos_hello &lt;options&gt;</PRE
113 
></TD
114 
></TR
115 
></TABLE
116 
><P
117 
>or using gdb:
118 
    </P
119 
><TABLE
120 
BORDER="5"
121 
BGCOLOR="#E0E0F0"
122 
WIDTH="70%"
123 
><TR
124 
><TD
125 
><PRE
126 
CLASS="SCREEN"
127 
>$ gdb --nw --quiet --args ecos_hello &lt;options&gt;
128 
(gdb) run
129 
Starting program: ecos_hello &lt;options&gt;</PRE
130 
></TD
131 
></TR
132 
></TABLE
133 
><P
134 
>By default use of the I/O auxiliary is disabled. If its I/O facilities
135 
are required then the option <TT
136 
CLASS="OPTION"
137 
>--io</TT
138 
> must be used.
139 
    </P
140 
><DIV
141 
CLASS="NOTE"
142 
><BLOCKQUOTE
143 
CLASS="NOTE"
144 
><P
145 
><B
146 
>Note: </B
147 
>In future the default behaviour may change, with the I/O auxiliary
148 
being started by default. The option <TT
149 
CLASS="OPTION"
150 
>--nio</TT
151 
> can be
152 
used to prevent the auxiliary from being run.
153 
    </P
154 
></BLOCKQUOTE
155 
></DIV
156 
></DIV
157 
><DIV
158 
CLASS="REFSECT1"
159 
><A
160 
NAME="SYNTH-RUNNING-ARGUMENTS"
161 
></A
162 
><H2
163 
>Command-line Arguments</H2
164 
><P
165 
>The syntax for running a synthetic target application is:
166 
    </P
167 
><TABLE
168 
BORDER="5"
169 
BGCOLOR="#E0E0F0"
170 
WIDTH="70%"
171 
><TR
172 
><TD
173 
><PRE
174 
CLASS="SCREEN"
175 
>$ &lt;ecos_app&gt; [options] [-- [app_options]]</PRE
176 
></TD
177 
></TR
178 
></TABLE
179 
><P
180 
>Command line options up to the <TT
181 
CLASS="OPTION"
182 
>--</TT
183 
> are passed on to
184 
the I/O auxiliary. Subsequent arguments are not passed on to the
185 
auxiliary, and hence can be used by the eCos application itself. The
186 
full set of arguments can be accessed through the variables
187 
<TT
188 
CLASS="VARNAME"
189 
>cyg_hal_sys_argc</TT
190 
> and
191 
<TT
192 
CLASS="VARNAME"
193 
>cyg_hal_sys_argv</TT
194 
>.
195 
    </P
196 
><P
197 
>The following options are accepted as standard:
198 
    </P
199 
><P
200 
></P
201 
><DIV
202 
CLASS="VARIABLELIST"
203 
><DL
204 
><DT
205 
><TT
206 
CLASS="OPTION"
207 
>--io</TT
208 
></DT
209 
><DD
210 
><P
211 
>This option causes the eCos application to spawn the I/O auxiliary
212 
during HAL initialization. Without this option only limited I/O will
213 
be available.
214 
         </P
215 
></DD
216 
><DT
217 
><TT
218 
CLASS="OPTION"
219 
>--nio</TT
220 
></DT
221 
><DD
222 
><P
223 
>This option prevents the eCos application from spawning the I/O
224 
auxiliary. In the current version of the software this is the default.
225 
         </P
226 
></DD
227 
><DT
228 
><TT
229 
CLASS="OPTION"
230 
>-nw</TT
231 
>, <TT
232 
CLASS="OPTION"
233 
>--no-windows</TT
234 
></DT
235 
><DD
236 
><P
237 
>The I/O auxiliary can either provide a graphical user interface, or it
238 
can run in a text-only mode. The default is to provide the graphical
239 
interface, but this can be disabled with <TT
240 
CLASS="OPTION"
241 
>-nw</TT
242 
>.
243 
Emulation of some devices, for example buttons connected to digital
244 
inputs, requires the graphical interface.
245 
         </P
246 
></DD
247 
><DT
248 
><TT
249 
CLASS="OPTION"
250 
>-w</TT
251 
>, <TT
252 
CLASS="OPTION"
253 
>--windows</TT
254 
></DT
255 
><DD
256 
><P
257 
>The <TT
258 
CLASS="OPTION"
259 
>-w</TT
260 
> causes the I/O auxiliary to provide a
261 
graphical user interface. This is the default.
262 
         </P
263 
></DD
264 
><DT
265 
><TT
266 
CLASS="OPTION"
267 
>-v</TT
268 
>, <TT
269 
CLASS="OPTION"
270 
>--version</TT
271 
></DT
272 
><DD
273 
><P
274 
>The <TT
275 
CLASS="OPTION"
276 
>-v</TT
277 
> option can be used to determine the version of
278 
the I/O auxiliary being used and where it has been installed. Both the
279 
auxiliary and the eCos application will exit immediately.
280 
         </P
281 
></DD
282 
><DT
283 
><TT
284 
CLASS="OPTION"
285 
>-h</TT
286 
>, <TT
287 
CLASS="OPTION"
288 
>--help</TT
289 
></DT
290 
><DD
291 
><P
292 
><TT
293 
CLASS="OPTION"
294 
>-h</TT
295 
> causes the I/O auxiliary to list all accepted
296 
command-line arguments. This happens after all devices have been
297 
initialized, since the host-side support for some of the devices may
298 
extend the list of recognised options. After this both the auxiliary
299 
and the eCos application will exit immediately. This option implies
300 
<TT
301 
CLASS="OPTION"
302 
>-nw</TT
303 
>.
304 
         </P
305 
></DD
306 
><DT
307 
><TT
308 
CLASS="OPTION"
309 
>-k</TT
310 
>, <TT
311 
CLASS="OPTION"
312 
>--keep-going</TT
313 
></DT
314 
><DD
315 
><P
316 
>If an error occurs in the I/O auxiliary while reading in any of the
317 
configuration files or initializing devices, by default both the
318 
auxiliary and the eCos application will exit. The <TT
319 
CLASS="OPTION"
320 
>-k</TT
321 
>
322 
option can be used to make the auxiliary continue in spite of errors,
323 
although obviously it may not be fully functional.
324 
         </P
325 
></DD
326 
><DT
327 
><TT
328 
CLASS="OPTION"
329 
>-nr</TT
330 
>, <TT
331 
CLASS="OPTION"
332 
>--no-rc</TT
333 
></DT
334 
><DD
335 
><P
336 
>Normally the auxiliary processes two <A
337 
HREF="synth-running.html#SYNTH-RUNNING-USER-CONFIG"
338 
>user configuration files</A
339 
>
340 
during startup: <TT
341 
CLASS="FILENAME"
342 
>initrc.tcl</TT
343 
> and
344 
<TT
345 
CLASS="FILENAME"
346 
>mainrc.tcl</TT
347 
>. This can be suppressed using the
348 
<TT
349 
CLASS="OPTION"
350 
>-nr</TT
351 
> option.
352 
         </P
353 
></DD
354 
><DT
355 
><TT
356 
CLASS="OPTION"
357 
>-x</TT
358 
>, <TT
359 
CLASS="OPTION"
360 
>--exit</TT
361 
></DT
362 
><DD
363 
><P
364 
>When providing a graphical user interface the I/O auxiliary will
365 
normally continue running even after the eCos application has exited.
366 
This allows the user to take actions such as saving the current
367 
contents of the main text window. If run with <TT
368 
CLASS="OPTION"
369 
>-x</TT
370 
> then
371 
the auxiliary will exit as soon the application exits.
372 
         </P
373 
></DD
374 
><DT
375 
><TT
376 
CLASS="OPTION"
377 
>-nx</TT
378 
>, <TT
379 
CLASS="OPTION"
380 
>--no-exit</TT
381 
></DT
382 
><DD
383 
><P
384 
>When the graphical user interface is disabled with
385 
<TT
386 
CLASS="OPTION"
387 
>-nw</TT
388 
> the I/O auxiliary will normally exit immediately
389 
when the eCos application exits. Without the graphical frontend there
390 
is usually no way for the user to interact directly with the
391 
auxiliary, so there is no point in continuing to run once the eCos
392 
application will no longer request any I/O operations. Specifying the
393 
<TT
394 
CLASS="OPTION"
395 
>-nx</TT
396 
> option causes the auxiliary to continue running
397 
even after the application has exited.
398 
         </P
399 
></DD
400 
><DT
401 
><TT
402 
CLASS="OPTION"
403 
>-V</TT
404 
>, <TT
405 
CLASS="OPTION"
406 
>--verbose</TT
407 
></DT
408 
><DD
409 
><P
410 
>This option causes the I/O auxiliary to output some additional
411 
information, especially during initialization.
412 
         </P
413 
></DD
414 
><DT
415 
><TT
416 
CLASS="OPTION"
417 
>-l &lt;file&gt;</TT
418 
>, <TT
419 
CLASS="OPTION"
420 
>--logfile &lt;file&gt;</TT
421 
></DT
422 
><DD
423 
><P
424 
>Much of the output of the eCos application and the I/O auxiliary is
425 
simple text, for example resulting from eCos
426 
<TT
427 
CLASS="FUNCTION"
428 
>printf</TT
429 
> or <TT
430 
CLASS="FUNCTION"
431 
>diag_printf</TT
432 
> calls.
433 
When running in graphical mode this output goes to a central text
434 
window, and can be saved to a file or edited via menus. The
435 
<TT
436 
CLASS="OPTION"
437 
>-l</TT
438 
> can be used to automatically generate an
439 
additional logfile containing all the text. If graphical
440 
mode is disabled then by default all the text just goes to the current
441 
standard output. Specifying <TT
442 
CLASS="OPTION"
443 
>-l</TT
444 
> causes most of the
445 
text to go into a logfile instead, although some messages such as
446 
errors generated by the auxiliary itself will still go to stdout as
447 
well.
448 
         </P
449 
></DD
450 
><DT
451 
><TT
452 
CLASS="OPTION"
453 
>-t &lt;file&gt;</TT
454 
>, <TT
455 
CLASS="OPTION"
456 
>--target &lt;file&gt;</TT
457 
></DT
458 
><DD
459 
><P
460 
>During initialization the I/O auxiliary reads in a target definition
461 
file. This file holds information such as which Linux devices should
462 
be used to emulate the various eCos devices. The <TT
463 
CLASS="OPTION"
464 
>-t</TT
465 
>
466 
option can be used to specify which target definition should be used
467 
for the current run, defaulting to <TT
468 
CLASS="FILENAME"
469 
>default.tdf</TT
470 
>.
471 
It is not necessary to include the <TT
472 
CLASS="FILENAME"
473 
>.tdf</TT
474 
> suffix,
475 
this will be appended automatically if necessary.
476 
         </P
477 
></DD
478 
><DT
479 
><TT
480 
CLASS="OPTION"
481 
>-geometry &lt;geometry&gt;</TT
482 
></DT
483 
><DD
484 
><P
485 
>This option can be used to control the size and position of the main
486 
window, as per X conventions.
487 
         </P
488 
></DD
489 
></DL
490 
></DIV
491 
><P
492 
>The I/O auxiliary loads support for the various devices dynamically
493 
and some devices may accept additional command line arguments. Details
494 
of these can be obtained using the <TT
495 
CLASS="OPTION"
496 
>-h</TT
497 
> option or by
498 
consulting the device-specific documentation. If an unrecognised
499 
command line argument is used then a warning will be issued.
500 
    </P
501 
></DIV
502 
><DIV
503 
CLASS="REFSECT1"
504 
><A
505 
NAME="SYNTH-RUNNING-TDF"
506 
></A
507 
><H2
508 
>The Target Definition File</H2
509 
><P
510 
>The eCos application will want to access devices such as
511 
<TT
512 
CLASS="VARNAME"
513 
>eth0</TT
514 
> or <TT
515 
CLASS="VARNAME"
516 
>/dev/ser0</TT
517 
>. These need to
518 
be mapped on to Linux devices. For example some users may all traffic
519 
on the eCos <TT
520 
CLASS="VARNAME"
521 
>/dev/ser0</TT
522 
> serial device to go via the
523 
Linux serial device <TT
524 
CLASS="VARNAME"
525 
>/dev/ttyS1</TT
526 
>, while ethernet I/O
527 
for the eCos <TT
528 
CLASS="VARNAME"
529 
>eth0</TT
530 
> device should be mapped to the
531 
Linux ethertap device <TT
532 
CLASS="VARNAME"
533 
>tap3</TT
534 
>. Some devices may need
535 
additional configuration information, for example to limit the
536 
number of packets that should be buffered within the I/O auxiliary.
537 
The target definition file provides all this information.
538 
    </P
539 
><P
540 
>By default the I/O auxiliary will look for a file
541 
<TT
542 
CLASS="FILENAME"
543 
>default.tdf</TT
544 
>. An alternative target definition can
545 
be specified on the command line using <TT
546 
CLASS="OPTION"
547 
>-t</TT
548 
>, for
549 
example:
550 
    </P
551 
><TABLE
552 
BORDER="5"
553 
BGCOLOR="#E0E0F0"
554 
WIDTH="70%"
555 
><TR
556 
><TD
557 
><PRE
558 
CLASS="SCREEN"
559 
>$ bridge_app --io -t twineth</PRE
560 
></TD
561 
></TR
562 
></TABLE
563 
><P
564 
>A <TT
565 
CLASS="FILENAME"
566 
>.tdf</TT
567 
> suffix will be appended automatically if
568 
necessary. If a relative pathname is used then the I/O auxiliary will
569 
search for the target definition file in the current directory, then
570 
in <TT
571 
CLASS="FILENAME"
572 
>~/.ecos/synth/</TT
573 
>, and finally
574 
in its install location.
575 
    </P
576 
><P
577 
>A typical target definition file might look like this:
578 
    </P
579 
><TABLE
580 
BORDER="5"
581 
BGCOLOR="#E0E0F0"
582 
WIDTH="70%"
583 
><TR
584 
><TD
585 
><PRE
586 
CLASS="PROGRAMLISTING"
587 
>synth_device console {
588 
    # appearance -foreground white -background black
589 
    filter trace {^TRACE:.*} -foreground HotPink1 -hide 1
590 
}
591 
 
592 
synth_device ethernet {
593 
    eth0 real eth1
594 
    eth1 ethertap tap4 00:01:02:03:FE:06
595 
 
596 
    ## Maximum number of packets that should be buffered per interface.
597 
    ## Default 16
598 
    #max_buffer 32
599 
 
600 
    ## Filters for the various recognised protocols.
601 
    ## By default all filters are visible and use standard colours.
602 
    filter ether  -hide 0
603 
    #filter arp    -hide 1
604 
    #filter ipv4   -hide 1
605 
    #filter ipv6   -hide 1
606 
}</PRE
607 
></TD
608 
></TR
609 
></TABLE
610 
><P
611 
>A target definition file is actually a Tcl script that gets run in the
612 
main interpreter of the I/O auxiliary during initialization. This
613 
provides a lot of flexibility if necessary. For example the script
614 
could open a socket to a resource management server of some sort to
615 
determine which hardware facilities are already in use and adapt
616 
accordingly. Another possibility is to adapt based on <A
617 
HREF="synth-new-host.html#SYNTH-NEW-HOST-ARGS"
618 
>command line arguments</A
619 
>. Users who
620 
are not familiar with Tcl programming should still be able to edit a
621 
simple target definition file without too much difficulty, using a
622 
mixture of cut'n'paste, commenting or uncommenting various lines, and
623 
making small edits such as changing <TT
624 
CLASS="LITERAL"
625 
>tap4</TT
626 
> to
627 
<TT
628 
CLASS="LITERAL"
629 
>eth2</TT
630 
>.
631 
    </P
632 
><P
633 
>Each type of device will have its own entry in the target definition
634 
file, taking the form:
635 
    </P
636 
><TABLE
637 
BORDER="5"
638 
BGCOLOR="#E0E0F0"
639 
WIDTH="70%"
640 
><TR
641 
><TD
642 
><PRE
643 
CLASS="PROGRAMLISTING"
644 
>synth_device &lt;device type&gt; {
645 
    &lt;options&gt;
646 
}</PRE
647 
></TD
648 
></TR
649 
></TABLE
650 
><P
651 
>The documentaton for each synthetic target device should provide
652 
details of the options available for that device, and often a suitable
653 
fragment that can be pasted into a target definition file and edited.
654 
There is no specific set of options that a given device will always
655 
provide. However in practice many devices will use common code
656 
exported by the main I/O auxiliary, or their implementation will
657 
involve some re-use of code for an existing device. Hence certain
658 
types of option are common to many devices.
659 
    </P
660 
><P
661 
>A good example of this is filters, which control the appearance of
662 
text output. The above target definition file defines a filter
663 
<TT
664 
CLASS="VARNAME"
665 
>trace</TT
666 
> for output from the eCos application. The
667 
regular expression will match output from the infrastructure package's
668 
tracing facilities when <TT
669 
CLASS="VARNAME"
670 
>CYGDBG_USE_TRACING</TT
671 
> and
672 
<TT
673 
CLASS="VARNAME"
674 
>CYGDBG_INFRA_DEBUG_TRACE_ASSERT_SIMPLE</TT
675 
> are enabled.
676 
With the current settings this output will not be visible by default,
677 
but can be made visible using the menu item <SPAN
678 
CLASS="GUIMENUITEM"
679 
>System
680 
Filters</SPAN
681 
>. If made visible the trace output will appear in
682 
an unusual colour, so users can easily distinguish the trace output
683 
from other text. All filters accept the following options:
684 
    </P
685 
><P
686 
></P
687 
><DIV
688 
CLASS="VARIABLELIST"
689 
><DL
690 
><DT
691 
><TT
692 
CLASS="OPTION"
693 
>-hide [0|1]</TT
694 
></DT
695 
><DD
696 
><P
697 
>This controls whether or not text matching this filter should be
698 
invisible by default or not. At run-time the visibility of each filter
699 
can be controlled using the <SPAN
700 
CLASS="GUIMENUITEM"
701 
>System Filters</SPAN
702 
>
703 
menu item.
704 
         </P
705 
></DD
706 
><DT
707 
><TT
708 
CLASS="OPTION"
709 
>-foreground &lt;colour&gt;</TT
710 
></DT
711 
><DD
712 
><P
713 
>This specifies the foreground colour for all text matching this
714 
filter. The colour can be specified using an RGB value such as
715 
<TT
716 
CLASS="LITERAL"
717 
>#F08010</TT
718 
>, or a symbolic name such as
719 
<TT
720 
CLASS="LITERAL"
721 
>"light steel blue"</TT
722 
>. The X11 utility
723 
<SPAN
724 
CLASS="APPLICATION"
725 
>showrgb</SPAN
726 
> can be used to find out
727 
about the available colours.
728 
         </P
729 
></DD
730 
><DT
731 
><TT
732 
CLASS="OPTION"
733 
>-background &lt;colour&gt;</TT
734 
></DT
735 
><DD
736 
><P
737 
>This specifies the background colour for all text matching the filter.
738 
As with <TT
739 
CLASS="OPTION"
740 
>-foreground</TT
741 
> the colour can be specified using
742 
a symbolic name or an RGB value.
743 
         </P
744 
></DD
745 
></DL
746 
></DIV
747 
><P
748 
>Some devices may create their own subwindows, for example to monitor
749 
ethernet traffic or to provide additional I/O facilities such as
750 
emulated LED's or buttons. Usually the target definition file can be
751 
used to control the <A
752 
HREF="synth-gui.html#SYNTH-GUI-LAYOUT"
753 
>layout</A
754 
> of
755 
these windows.
756 
    </P
757 
><P
758 
>The I/O auxiliary will not normally warn about
759 
<B
760 
CLASS="COMMAND"
761 
>synth_device</B
762 
> entries in the target definition file
763 
for devices that are not actually needed by the current eCos
764 
application. This makes it easier to use a single file for several
765 
different applications. However it can lead to confusion if an entry
766 
is spelled incorrectly and hence does not actually get used. The
767 
<TT
768 
CLASS="OPTION"
769 
>-V</TT
770 
> command line option can be used to get warnings
771 
about unused device entries in the target definition file.
772 
    </P
773 
><P
774 
>If the body of a <B
775 
CLASS="COMMAND"
776 
>synth_device</B
777 
> command contains an
778 
unrecognised option and the relevant device is in use, the I/O
779 
auxiliary will always issue a warning about such options.
780 
    </P
781 
></DIV
782 
><DIV
783 
CLASS="REFSECT1"
784 
><A
785 
NAME="SYNTH-RUNNING-USER-CONFIG"
786 
></A
787 
><H2
788 
>User Configuration Files</H2
789 
><P
790 
>During initialization the I/O auxiliary will execute two user
791 
configuration files, <TT
792 
CLASS="FILENAME"
793 
>initrc.tcl</TT
794 
> and
795 
<TT
796 
CLASS="FILENAME"
797 
>mainrc.tcl</TT
798 
>. It will look for these files in the
799 
directory <TT
800 
CLASS="FILENAME"
801 
>~/.ecos/synth/</TT
802 
>. If
803 
that directory does not yet exist it will be created and populated
804 
with initial dummy files.
805 
    </P
806 
><P
807 
>Both of these configuration files are Tcl scripts and will be run in
808 
the main interpreter used by the I/O auxiliary itself. This means that
809 
they have full access to the internals of the auxiliary including the
810 
various Tk widgets, and they can perform file or socket I/O if
811 
desired. The section <A
812 
HREF="synth-new-host.html"
813 
>Writing New Devices - host</A
814 
> contains
815 
information about the facilities available on the host-side for
816 
writing new device drivers, and these can also be used in the
817 
initialization scripts.
818 
    </P
819 
><P
820 
>The <TT
821 
CLASS="FILENAME"
822 
>initrc.tcl</TT
823 
> script is run before the auxiliary
824 
has processed any requests from the eCos application, and hence before
825 
any devices have been instantiated. At this point the generic
826 
command-line arguments has been processed, the target definition file
827 
has been read in, and the hooks functionality has been initialized. If
828 
running in graphical mode the main window will have been created, but
829 
has been withdrawn from the screen to allow new widgets to be added
830 
without annoying screen flicker. A typical
831 
<TT
832 
CLASS="FILENAME"
833 
>initrc.tcl</TT
834 
> script could add some menu or toolbar
835 
options, or install a hook function that will be run when the
836 
eCos application exits.
837 
    </P
838 
><P
839 
>The <TT
840 
CLASS="FILENAME"
841 
>mainrc.tcl</TT
842 
> script is run after eCos has
843 
performed all its device initialization and after C++ static
844 
constructors have run, and just before the call to
845 
<TT
846 
CLASS="FUNCTION"
847 
>cyg_start</TT
848 
> which will end up transferring control
849 
to the application itself. A typical <TT
850 
CLASS="FILENAME"
851 
>mainrc.tcl</TT
852 
>
853 
script could look at what interrupt vectors have been allocated to
854 
which devices and create a little monitor window that shows interrupt
855 
activity.
856 
    </P
857 
></DIV
858 
><DIV
859 
CLASS="REFSECT1"
860 
><A
861 
NAME="SYNTH-RUNNING-SESSION"
862 
></A
863 
><H2
864 
>Session Information</H2
865 
><P
866 
>When running in graphical mode, the I/O auxiliary will read in a file
867 
<TT
868 
CLASS="FILENAME"
869 
>~/.ecos/synth/guisession</TT
870 
> containing session
871 
information. This file should not normally be edited manually, instead
872 
it gets updated automatically when the auxiliary exits. The purpose of
873 
this file is to hold configuration options that are manipulated via
874 
the graphical interface, for example which browser should be used to
875 
display online help.
876 
    </P
877 
><DIV
878 
CLASS="WARNING"
879 
><P
880 
></P
881 
><TABLE
882 
CLASS="WARNING"
883 
BORDER="1"
884 
WIDTH="100%"
885 
><TR
886 
><TD
887 
ALIGN="CENTER"
888 
><B
889 
>Warning</B
890 
></TD
891 
></TR
892 
><TR
893 
><TD
894 
ALIGN="LEFT"
895 
><P
896 
>GUI session functionality is not yet available in the current release.
897 
When that functionality is fully implemented it is possible that some
898 
target definition file options may be removed, to be replaced by
899 
graphical editing via a suitable preferences dialog, with the
900 
current settings saved in the session file.
901 
    </P
902 
></TD
903 
></TR
904 
></TABLE
905 
></DIV
906 
></DIV
907 
><DIV
908 
CLASS="NAVFOOTER"
909 
><HR
910 
ALIGN="LEFT"
911 
WIDTH="100%"><TABLE
912 
SUMMARY="Footer navigation table"
913 
WIDTH="100%"
914 
BORDER="0"
915 
CELLPADDING="0"
916 
CELLSPACING="0"
917 
><TR
918 
><TD
919 
WIDTH="33%"
920 
ALIGN="left"
921 
VALIGN="top"
922 
><A
923 
HREF="synth-install.html"
924 
ACCESSKEY="P"
925 
>Prev</A
926 
></TD
927 
><TD
928 
WIDTH="34%"
929 
ALIGN="center"
930 
VALIGN="top"
931 
><A
932 
HREF="ecos-ref.html"
933 
ACCESSKEY="H"
934 
>Home</A
935 
></TD
936 
><TD
937 
WIDTH="33%"
938 
ALIGN="right"
939 
VALIGN="top"
940 
><A
941 
HREF="synth-gui.html"
942 
ACCESSKEY="N"
943 
>Next</A
944 
></TD
945 
></TR
946 
><TR
947 
><TD
948 
WIDTH="33%"
949 
ALIGN="left"
950 
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951 
>Installation</TD
952 
><TD
953 
WIDTH="34%"
954 
ALIGN="center"
955 
VALIGN="top"
956 
><A
957 
HREF="hal-synth-arch.html"
958 
ACCESSKEY="U"
959 
>Up</A
960 
></TD
961 
><TD
962 
WIDTH="33%"
963 
ALIGN="right"
964 
VALIGN="top"
965 
>The I/O Auxiliary's User Interface</TD
966 
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