1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2008, Duane Ellis *
9 * openocd@duaneeellis.com *
11 * part of this file is taken from libcli (libcli.sourceforge.net) *
12 * Copyright (C) David Parrish (david@dparrish.com) *
14 * This program is free software; you can redistribute it and/or modify *
15 * it under the terms of the GNU General Public License as published by *
16 * the Free Software Foundation; either version 2 of the License, or *
17 * (at your option) any later version. *
19 * This program is distributed in the hope that it will be useful, *
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
22 * GNU General Public License for more details. *
24 * You should have received a copy of the GNU General Public License *
25 * along with this program; if not, write to the *
26 * Free Software Foundation, Inc., *
27 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
28 ***************************************************************************/
33 #include "replacements.h"
36 #include "configuration.h"
39 #include "time_support.h"
40 #include "jim-eventloop.h"
50 int fast_and_dangerous
= 0;
51 Jim_Interp
*interp
= NULL
;
53 int handle_sleep_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
54 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
56 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
);
58 static void tcl_output(void *privData
, const char *file
, int line
, const char *function
, const char *string
)
60 Jim_Obj
*tclOutput
=(Jim_Obj
*)privData
;
62 Jim_AppendString(interp
, tclOutput
, string
, strlen(string
));
65 extern command_context_t
*global_cmd_ctx
;
67 static int script_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
69 /* the private data is stashed in the interp structure */
71 command_context_t
*context
;
77 /* DANGER!!!! be careful what we invoke here, since interp->cmdPrivData might
78 * get overwritten by running other Jim commands! Treat it as an
79 * emphemeral global variable that is used in lieu of an argument
80 * to the fn and fish it out manually.
82 c
= interp
->cmdPrivData
;
85 LOG_ERROR("BUG: interp->cmdPrivData==NULL");
88 target_call_timer_callbacks_now();
89 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
91 LOG_DEBUG("script_command - %s", c
->name
);
93 words
= malloc(sizeof(char *) * argc
);
94 for (i
= 0; i
< argc
; i
++)
97 const char *w
=Jim_GetString(argv
[i
], &len
);
100 /* hit an end of line comment */
103 words
[i
] = strdup(w
);
104 if (words
[i
] == NULL
)
108 LOG_DEBUG("script_command - %s, argv[%u]=%s", c
->name
, i
, words
[i
]);
112 /* grab the command context from the associated data */
113 context
= Jim_GetAssocData(interp
, "context");
116 /* Tcl can invoke commands directly instead of via command_run_line(). This would
117 * happen when the Jim Tcl interpreter is provided by eCos.
119 context
= global_cmd_ctx
;
122 /* capture log output and return it */
123 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
124 /* a garbage collect can happen, so we need a reference count to this object */
125 Jim_IncrRefCount(tclOutput
);
127 log_add_callback(tcl_output
, tclOutput
);
129 retval
= run_command(context
, c
, words
, nwords
);
131 log_remove_callback(tcl_output
, tclOutput
);
133 /* We dump output into this local variable */
134 Jim_SetResult(interp
, tclOutput
);
135 Jim_DecrRefCount(interp
, tclOutput
);
137 for (i
= 0; i
< nwords
; i
++)
141 int *return_retval
= Jim_GetAssocData(interp
, "retval");
142 if (return_retval
!= NULL
)
144 *return_retval
= retval
;
147 return (retval
==ERROR_OK
)?JIM_OK
:JIM_ERR
;
150 /* nice short description of source file */
151 #define __THIS__FILE__ "command.c"
153 command_t
* register_command(command_context_t
*context
, command_t
*parent
, char *name
, int (*handler
)(struct command_context_s
*context
, char* name
, char** args
, int argc
), enum command_mode mode
, char *help
)
157 if (!context
|| !name
)
160 c
= malloc(sizeof(command_t
));
162 c
->name
= strdup(name
);
165 c
->handler
= handler
;
171 /* place command in tree */
174 if (parent
->children
)
176 /* find last child */
177 for (p
= parent
->children
; p
&& p
->next
; p
= p
->next
);
183 parent
->children
= c
;
188 if (context
->commands
)
190 /* find last command */
191 for (p
= context
->commands
; p
&& p
->next
; p
= p
->next
);
197 context
->commands
= c
;
201 /* just a placeholder, no handler */
202 if (c
->handler
==NULL
)
205 /* If this is a two level command, e.g. "flash banks", then the
206 * "unknown" proc in startup.tcl must redirect to this command.
208 * "flash banks" is translated by "unknown" to "flash_banks"
209 * if such a proc exists
211 /* Print help for command */
215 /* maximum of two levels :-) */
222 const char *full_name
=alloc_printf("ocd_%s%s%s", t1
, t2
, t3
);
223 Jim_CreateCommand(interp
, full_name
, script_command
, c
, NULL
);
224 free((void *)full_name
);
226 /* we now need to add an overrideable proc */
227 const char *override_name
=alloc_printf("proc %s%s%s {args} {if {[catch {eval \"ocd_%s%s%s $args\"}]==0} {return \"\"} else { return -code error }", t1
, t2
, t3
, t1
, t2
, t3
);
228 Jim_Eval_Named(interp
, override_name
, __THIS__FILE__
, __LINE__
);
229 free((void *)override_name
);
231 /* accumulate help text in Tcl helptext list. */
232 Jim_Obj
*helptext
=Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
233 if (Jim_IsShared(helptext
))
234 helptext
= Jim_DuplicateObj(interp
, helptext
);
235 Jim_Obj
*cmd_entry
=Jim_NewListObj(interp
, NULL
, 0);
237 Jim_Obj
*cmd_list
=Jim_NewListObj(interp
, NULL
, 0);
239 /* maximum of two levels :-) */
242 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->parent
->name
, -1));
244 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->name
, -1));
246 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
247 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
248 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
252 int unregister_all_commands(command_context_t
*context
)
259 while(NULL
!= context
->commands
)
261 c
= context
->commands
;
263 while(NULL
!= c
->children
)
266 c
->children
= c
->children
->next
;
273 context
->commands
= context
->commands
->next
;
284 int unregister_command(command_context_t
*context
, char *name
)
286 command_t
*c
, *p
= NULL
, *c2
;
288 if ((!context
) || (!name
))
289 return ERROR_INVALID_ARGUMENTS
;
292 c
= context
->commands
;
296 if (strcmp(name
, c
->name
) == 0)
305 /* first element in command list */
306 context
->commands
= c
->next
;
309 /* unregister children */
310 while(NULL
!= c
->children
)
313 c
->children
= c
->children
->next
;
328 /* remember the last command for unlinking */
336 void command_output_text(command_context_t
*context
, const char *data
)
338 if( context
&& context
->output_handler
&& data
){
339 context
->output_handler( context
, data
);
343 void command_print_n(command_context_t
*context
, char *format
, ...)
348 va_start(ap
, format
);
350 string
= alloc_vprintf(format
, ap
);
353 /* we want this collected in the log + we also want to pick it up as a tcl return
356 * The latter bit isn't precisely neat, but will do for now.
358 LOG_USER_N("%s", string
);
359 /* We already printed it above */
360 /* command_output_text(context, string); */
367 void command_print(command_context_t
*context
, char *format
, ...)
372 va_start(ap
, format
);
374 string
= alloc_vprintf(format
, ap
);
377 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
378 /* we want this collected in the log + we also want to pick it up as a tcl return
381 * The latter bit isn't precisely neat, but will do for now.
383 LOG_USER_N("%s", string
);
384 /* We already printed it above */
385 /* command_output_text(context, string); */
392 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
)
395 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
) ))
397 /* Config commands can not run after the config stage */
398 LOG_ERROR("Illegal mode for command");
402 int retval
= c
->handler(context
, c
->name
, words
+ start_word
+ 1, num_words
- start_word
- 1);
403 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
405 /* Print help for command */
409 /* maximum of two levels :-) */
416 command_run_linef(context
, "help {%s%s%s}", t1
, t2
, t3
);
418 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
420 /* just fall through for a shutdown request */
422 else if (retval
!= ERROR_OK
)
424 /* we do not print out an error message because the command *should*
425 * have printed out an error
427 LOG_DEBUG("Command failed with error code %d", retval
);
433 int command_run_line(command_context_t
*context
, char *line
)
435 /* all the parent commands have been registered with the interpreter
436 * so, can just evaluate the line as a script and check for
439 /* run the line thru a script engine */
440 int retval
=ERROR_FAIL
;
442 /* Beware! This code needs to be reentrant. It is also possible
443 * for OpenOCD commands to be invoked directly from Tcl. This would
444 * happen when the Jim Tcl interpreter is provided by eCos for
447 Jim_DeleteAssocData(interp
, "context");
448 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
449 if (retcode
== JIM_OK
)
451 /* associated the return value */
452 Jim_DeleteAssocData(interp
, "retval");
453 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
454 if (retcode
== JIM_OK
)
456 retcode
= Jim_Eval_Named(interp
, line
, __THIS__FILE__
, __LINE__
);
458 Jim_DeleteAssocData(interp
, "retval");
460 Jim_DeleteAssocData(interp
, "context");
462 if (retcode
== JIM_ERR
) {
463 if (retval
!=ERROR_COMMAND_CLOSE_CONNECTION
)
465 /* We do not print the connection closed error message */
466 Jim_PrintErrorMessage(interp
);
468 if (retval
==ERROR_OK
)
470 /* It wasn't a low level OpenOCD command that failed */
474 } else if (retcode
== JIM_EXIT
) {
476 /* exit(Jim_GetExitCode(interp)); */
481 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
484 for (i
= 0; i
< reslen
; i
+= 256)
490 strncpy(buff
, result
+i
, chunk
);
492 LOG_USER_N("%s", buff
);
494 LOG_USER_N("%s", "\n");
500 int command_run_linef(command_context_t
*context
, char *format
, ...)
502 int retval
=ERROR_FAIL
;
505 va_start(ap
, format
);
506 string
= alloc_vprintf(format
, ap
);
509 retval
=command_run_line(context
, string
);
515 void command_set_output_handler(command_context_t
* context
, int (*output_handler
)(struct command_context_s
*context
, const char* line
), void *priv
)
517 context
->output_handler
= output_handler
;
518 context
->output_handler_priv
= priv
;
521 command_context_t
* copy_command_context(command_context_t
* context
)
523 command_context_t
* copy_context
= malloc(sizeof(command_context_t
));
525 *copy_context
= *context
;
530 int command_done(command_context_t
*context
)
538 /* find full path to file */
539 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
543 const char *file
= Jim_GetString(argv
[1], NULL
);
544 char *full_path
= find_file(file
);
545 if (full_path
== NULL
)
547 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
550 Jim_SetResult(interp
, result
);
554 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
558 const char *str
= Jim_GetString(argv
[1], NULL
);
563 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
569 /* make it a char easier to read code */
573 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
577 /* do we have to chunk it? */
578 if (ptr
[nbytes
] == 0)
580 /* no it is a C style string */
581 LOG_USER_N("%s", ptr
);
584 /* GRR we must chunk - not null terminated */
594 memcpy(chunk
, ptr
, x
);
598 LOG_USER_N("%s", chunk
);
606 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
608 /* TCL wants to read... tell him no */
612 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
623 cp
= alloc_vprintf(fmt
, ap
);
626 LOG_USER_N("%s", cp
);
633 static int openocd_jim_fflush(void *cookie
)
635 /* nothing to flush */
639 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
646 static int jim_capture(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
651 const char *str
= Jim_GetString(argv
[1], NULL
);
653 /* capture log output and return it */
654 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
655 /* a garbage collect can happen, so we need a reference count to this object */
656 Jim_IncrRefCount(tclOutput
);
658 log_add_callback(tcl_output
, tclOutput
);
660 retcode
= Jim_Eval_Named(interp
, str
, __THIS__FILE__
, __LINE__
);
662 log_remove_callback(tcl_output
, tclOutput
);
664 /* We dump output into this local variable */
665 Jim_SetResult(interp
, tclOutput
);
666 Jim_DecrRefCount(interp
, tclOutput
);
671 command_context_t
* command_init()
673 command_context_t
* context
= malloc(sizeof(command_context_t
));
674 extern const char startup_tcl
[];
676 context
->mode
= COMMAND_EXEC
;
677 context
->commands
= NULL
;
678 context
->current_target
= 0;
679 context
->output_handler
= NULL
;
680 context
->output_handler_priv
= NULL
;
684 /* Create an interpreter */
685 interp
= Jim_CreateInterp();
686 /* Add all the Jim core commands */
687 Jim_RegisterCoreCommands(interp
);
690 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
691 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
692 Jim_CreateCommand(interp
, "capture", jim_capture
, NULL
, NULL
);
694 /* Set Jim's STDIO */
695 interp
->cookie_stdin
= interp
;
696 interp
->cookie_stdout
= interp
;
697 interp
->cookie_stderr
= interp
;
698 interp
->cb_fwrite
= openocd_jim_fwrite
;
699 interp
->cb_fread
= openocd_jim_fread
;
700 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
701 interp
->cb_fflush
= openocd_jim_fflush
;
702 interp
->cb_fgets
= openocd_jim_fgets
;
707 Jim_EventLoopOnLoad(interp
);
709 if (Jim_Eval_Named(interp
, startup_tcl
, "embedded:startup.tcl",1)==JIM_ERR
)
711 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD compile time)");
712 Jim_PrintErrorMessage(interp
);
716 register_command(context
, NULL
, "sleep", handle_sleep_command
,
717 COMMAND_ANY
, "<n> [busy] - sleep for n milliseconds. \"busy\" means busy wait");
719 register_command(context
, NULL
, "fast", handle_fast_command
,
720 COMMAND_ANY
, "fast <enable/disable> - place at beginning of config files. Sets defaults to fast and dangerous.");
725 int command_context_mode(command_context_t
*cmd_ctx
, enum command_mode mode
)
728 return ERROR_INVALID_ARGUMENTS
;
730 cmd_ctx
->mode
= mode
;
734 /* sleep command sleeps for <n> miliseconds
735 * this is useful in target startup scripts
737 int handle_sleep_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
739 unsigned long duration
= 0;
747 if (strcmp(args
[1], "busy")!=0)
748 return ERROR_COMMAND_SYNTAX_ERROR
;
752 return ERROR_COMMAND_SYNTAX_ERROR
;
755 duration
= strtoul(args
[0], NULL
, 0);
759 busy_sleep(duration
);
762 long long then
=timeval_ms();
763 while ((timeval_ms()-then
)<duration
)
765 target_call_timer_callbacks_now();
773 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
776 return ERROR_COMMAND_SYNTAX_ERROR
;
778 fast_and_dangerous
= strcmp("enable", args
[0])==0;
783 void process_jim_events(void)
786 static int recursion
= 0;
791 Jim_ProcessEvents (interp
, JIM_ALL_EVENTS
|JIM_DONT_WAIT
);
797 void register_jim(struct command_context_s
*cmd_ctx
, const char *name
, int (*cmd
)(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
), const char *help
)
799 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
801 /* FIX!!! it would be prettier to invoke add_help_text...
802 * accumulate help text in Tcl helptext list. */
803 Jim_Obj
*helptext
=Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
804 if (Jim_IsShared(helptext
))
805 helptext
= Jim_DuplicateObj(interp
, helptext
);
807 Jim_Obj
*cmd_entry
=Jim_NewListObj(interp
, NULL
, 0);
809 Jim_Obj
*cmd_list
=Jim_NewListObj(interp
, NULL
, 0);
810 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, name
, -1));
812 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
813 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
814 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
817 /* return global variable long value or 0 upon failure */
818 long jim_global_long(const char *variable
)
820 Jim_Obj
*objPtr
=Jim_GetGlobalVariableStr(interp
, variable
, JIM_ERRMSG
);
822 if (Jim_GetLong(interp
, objPtr
, &t
)==JIM_OK
)
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