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David Brownell <david-b@pacbell.net> 

- Don't let disabled TAPs be set as the current target

 - Improve "targets" output:
    * Remove undesirable "chain position" number; we discourage using them
    * TAP and Target column updates:
       + make them long enough for current usage
       + improve labels, removing guesswork
       + "TapName" label patches scan_chain output
    * Highlight the "current" target
    * Display "tap disabled" as a new pseudo-state
    * Update docs accordingly

git-svn-id: svn://svn.berlios.de/openocd/trunk@2107 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-06-08 06:16:43 +00:00
parent a221892f60
commit a405fd1581
2 changed files with 31 additions and 11 deletions
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9
doc/openocd.texi
View File

@ -2117,14 +2117,15 @@ You can display the list with the @command{targets}
This display often has only one CPU; here's what it might
look like with more than one:
@verbatim
CmdName Type Endian AbsChainPos Name State
-- ---------- ---------- ---------- ----------- ------------- ----------
0: rm9200.cpu arm920t little 2 rm9200.cpu running
1: MyTarget cortex_m3 little 0 mychip.cpu halted
TargetName Type Endian TapName State
-- ------------------ ---------- ------ ------------------ ------------
0* at91rm9200.cpu arm920t little at91rm9200.cpu running
1 MyTarget cortex_m3 little mychip.foo tap-disabled
@end verbatim
One member of that list is the @dfn{current target}, which
is implicitly referenced by many commands.
It's the one marked with a @code{*} near the target name.
In particular, memory addresses often refer to the address
space seen by that current target.
Commands like @command{mdw} (memory display words)

33
src/target/target.c
View File

@ -1467,6 +1467,12 @@ static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd,
command_print(cmd_ctx,"Target: %s is unknown, try one of:\n", args[0] );
goto DumpTargets;
}
if (!target->tap->enabled) {
command_print(cmd_ctx,"Target: TAP %s is disabled, "
"can't be the current target\n",
target->tap->dotted_name);
return ERROR_FAIL;
}
cmd_ctx->current_target = target->target_number;
return ERROR_OK;
@ -1474,19 +1480,32 @@ static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd,
DumpTargets:
target = all_targets;
command_print(cmd_ctx, " CmdName Type Endian AbsChainPos Name State ");
command_print(cmd_ctx, "-- ---------- ---------- ---------- ----------- ------------- ----------");
command_print(cmd_ctx, " TargetName Type Endian TapName State ");
command_print(cmd_ctx, "-- ------------------ ---------- ------ ------------------ ------------");
while (target)
{
/* XX: abcdefghij abcdefghij abcdefghij abcdefghij */
command_print(cmd_ctx, "%2d: %-10s %-10s %-10s %10d %14s %s",
const char *state;
char marker = ' ';
if (target->tap->enabled)
state = Jim_Nvp_value2name_simple(nvp_target_state,
target->state)->name;
else
state = "tap-disabled";
if (cmd_ctx->current_target == target->target_number)
marker = '*';
/* keep columns lined up to match the headers above */
command_print(cmd_ctx, "%2d%c %-18s %-10s %-6s %-18s %s",
target->target_number,
marker,
target->cmd_name,
target_get_name(target),
Jim_Nvp_value2name_simple( nvp_target_endian, target->endianness )->name,
target->tap->abs_chain_position,
Jim_Nvp_value2name_simple(nvp_target_endian,
target->endianness)->name,
target->tap->dotted_name,
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
state);
target = target->next;
}