1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * part of this file is taken from libcli (libcli.sourceforge.net) *
6 * Copyright (C) David Parrish (david@dparrish.com) *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
27 #include "replacements.h"
30 #include "configuration.h"
33 #include "time_support.h"
43 int fast_and_dangerous
= 0;
44 Jim_Interp
*interp
= NULL
;
46 int handle_sleep_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
47 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
49 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
);
51 static void tcl_output(void *privData
, const char *file
, int line
, const char *function
, const char *string
)
53 Jim_Obj
*tclOutput
=(Jim_Obj
*)privData
;
55 Jim_AppendString(interp
, tclOutput
, string
, strlen(string
));
58 extern command_context_t
*global_cmd_ctx
;
61 static int script_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
63 /* the private data is stashed in the interp structure */
65 command_context_t
*context
;
71 target_call_timer_callbacks_now();
72 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
74 c
= interp
->cmdPrivData
;
75 LOG_DEBUG("script_command - %s", c
->name
);
77 words
= malloc(sizeof(char *) * argc
);
78 for (i
= 0; i
< argc
; i
++)
81 const char *w
=Jim_GetString(argv
[i
], &len
);
84 /* hit an end of line comment */
92 LOG_DEBUG("script_command - %s, argv[%u]=%s", c
->name
, i
, words
[i
]);
96 /* grab the command context from the associated data */
97 context
= Jim_GetAssocData(interp
, "context");
100 /* Tcl can invoke commands directly instead of via command_run_line(). This would
101 * happen when the Jim Tcl interpreter is provided by eCos.
103 context
= global_cmd_ctx
;
106 /* capture log output and return it */
107 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
108 /* a garbage collect can happen, so we need a reference count to this object */
109 Jim_IncrRefCount(tclOutput
);
111 log_add_callback(tcl_output
, tclOutput
);
113 retval
= run_command(context
, c
, words
, nwords
);
115 log_remove_callback(tcl_output
, tclOutput
);
117 /* We dump output into this local variable */
118 Jim_SetResult(interp
, tclOutput
);
119 Jim_DecrRefCount(interp
, tclOutput
);
121 for (i
= 0; i
< nwords
; i
++)
125 int *return_retval
= Jim_GetAssocData(interp
, "retval");
126 if (return_retval
!= NULL
)
128 *return_retval
= retval
;
131 return (retval
==ERROR_OK
)?JIM_OK
:JIM_ERR
;
134 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
)
138 if (!context
|| !name
)
141 c
= malloc(sizeof(command_t
));
143 c
->name
= strdup(name
);
146 c
->handler
= handler
;
152 /* place command in tree */
155 if (parent
->children
)
157 /* find last child */
158 for (p
= parent
->children
; p
&& p
->next
; p
= p
->next
);
164 parent
->children
= c
;
169 if (context
->commands
)
171 /* find last command */
172 for (p
= context
->commands
; p
&& p
->next
; p
= p
->next
);
178 context
->commands
= c
;
182 /* just a placeholder, no handler */
183 if (c
->handler
==NULL
)
186 /* If this is a two level command, e.g. "flash banks", then the
187 * "unknown" proc in startup.tcl must redirect to this command.
189 * "flash banks" is translated by "unknown" to "flash_banks"
190 * if such a proc exists
192 /* Print help for command */
196 /* maximum of two levels :-) */
203 const char *full_name
=alloc_printf("ocd_%s%s%s", t1
, t2
, t3
);
204 Jim_CreateCommand(interp
, full_name
, script_command
, c
, NULL
);
205 free((void *)full_name
);
207 /* we now need to add an overrideable proc */
208 const char *override_name
=alloc_printf("proc %s%s%s {args} {eval \"ocd_%s%s%s $args\";return \"\"}", t1
, t2
, t3
, t1
, t2
, t3
);
209 Jim_Eval(interp
, override_name
);
210 free((void *)override_name
);
212 /* accumulate help text in Tcl helptext list. */
213 Jim_Obj
*helptext
=Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
214 if (Jim_IsShared(helptext
))
215 helptext
= Jim_DuplicateObj(interp
, helptext
);
216 Jim_Obj
*cmd_entry
=Jim_NewListObj(interp
, NULL
, 0);
218 Jim_Obj
*cmd_list
=Jim_NewListObj(interp
, NULL
, 0);
220 /* maximum of two levels :-) */
223 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->parent
->name
, -1));
225 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->name
, -1));
227 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
228 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
229 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
233 int unregister_all_commands(command_context_t
*context
)
240 while(NULL
!= context
->commands
)
242 c
= context
->commands
;
244 while(NULL
!= c
->children
)
247 c
->children
= c
->children
->next
;
254 context
->commands
= context
->commands
->next
;
265 int unregister_command(command_context_t
*context
, char *name
)
267 command_t
*c
, *p
= NULL
, *c2
;
269 if ((!context
) || (!name
))
270 return ERROR_INVALID_ARGUMENTS
;
273 for (c
= context
->commands
; c
; c
= c
->next
)
275 if (strcmp(name
, c
->name
) == 0)
284 context
->commands
= c
->next
;
287 /* unregister children */
290 for (c2
= c
->children
; c2
; c2
= c2
->next
)
302 /* remember the last command for unlinking */
309 void command_output_text(command_context_t
*context
, const char *data
)
311 if( context
&& context
->output_handler
&& data
){
312 context
->output_handler( context
, data
);
316 void command_print_n(command_context_t
*context
, char *format
, ...)
321 va_start(ap
, format
);
323 string
= alloc_vprintf(format
, ap
);
326 /* we want this collected in the log + we also want to pick it up as a tcl return
329 * The latter bit isn't precisely neat, but will do for now.
331 LOG_USER_N("%s", string
);
332 // We already printed it above
333 //command_output_text(context, string);
340 void command_print(command_context_t
*context
, char *format
, ...)
345 va_start(ap
, format
);
347 string
= alloc_vprintf(format
, ap
);
350 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
351 /* we want this collected in the log + we also want to pick it up as a tcl return
354 * The latter bit isn't precisely neat, but will do for now.
356 LOG_USER_N("%s", string
);
357 // We already printed it above
358 //command_output_text(context, string);
365 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
)
368 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
) ))
370 /* Config commands can not run after the config stage */
371 LOG_ERROR("Illegal mode for command");
375 int retval
= c
->handler(context
, c
->name
, words
+ start_word
+ 1, num_words
- start_word
- 1);
376 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
378 /* Print help for command */
382 /* maximum of two levels :-) */
389 command_run_linef(context
, "help {%s%s%s}", t1
, t2
, t3
);
391 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
393 /* just fall through for a shutdown request */
395 else if (retval
!= ERROR_OK
)
397 /* we do not print out an error message because the command *should*
398 * have printed out an error
400 LOG_DEBUG("Command failed with error code %d", retval
);
406 int command_run_line(command_context_t
*context
, char *line
)
408 /* all the parent commands have been registered with the interpreter
409 * so, can just evaluate the line as a script and check for
412 /* run the line thru a script engine */
413 int retval
=ERROR_FAIL
;
415 /* Beware! This code needs to be reentrant. It is also possible
416 * for OpenOCD commands to be invoked directly from Tcl. This would
417 * happen when the Jim Tcl interpreter is provided by eCos for
420 Jim_DeleteAssocData(interp
, "context");
421 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
422 if (retcode
== JIM_OK
)
424 /* associated the return value */
425 Jim_DeleteAssocData(interp
, "retval");
426 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
427 if (retcode
== JIM_OK
)
429 retcode
= Jim_Eval(interp
, line
);
431 Jim_DeleteAssocData(interp
, "retval");
433 Jim_DeleteAssocData(interp
, "context");
435 if (retcode
== JIM_ERR
) {
436 if (retval
!=ERROR_COMMAND_CLOSE_CONNECTION
)
438 /* We do not print the connection closed error message */
439 Jim_PrintErrorMessage(interp
);
441 if (retval
==ERROR_OK
)
443 /* It wasn't a low level OpenOCD command that failed */
447 } else if (retcode
== JIM_EXIT
) {
449 /* exit(Jim_GetExitCode(interp)); */
454 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
458 for (i
= 0; i
< reslen
; i
+= 256)
464 strncpy(buff
, result
+i
, chunk
);
466 LOG_USER_N("%s", buff
);
468 LOG_USER_N("%s", "\n");
474 int command_run_linef(command_context_t
*context
, char *format
, ...)
476 int retval
=ERROR_FAIL
;
479 va_start(ap
, format
);
480 string
= alloc_vprintf(format
, ap
);
483 retval
=command_run_line(context
, string
);
489 void command_set_output_handler(command_context_t
* context
, int (*output_handler
)(struct command_context_s
*context
, const char* line
), void *priv
)
491 context
->output_handler
= output_handler
;
492 context
->output_handler_priv
= priv
;
495 command_context_t
* copy_command_context(command_context_t
* context
)
497 command_context_t
* copy_context
= malloc(sizeof(command_context_t
));
499 *copy_context
= *context
;
504 int command_done(command_context_t
*context
)
512 /* find full path to file */
513 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
517 const char *file
= Jim_GetString(argv
[1], NULL
);
518 char *full_path
= find_file(file
);
519 if (full_path
== NULL
)
521 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
524 Jim_SetResult(interp
, result
);
528 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
532 const char *str
= Jim_GetString(argv
[1], NULL
);
537 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
543 /* make it a char easier to read code */
547 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
551 /* do we have to chunk it? */
552 if (ptr
[nbytes
] == 0)
554 /* no it is a C style string */
555 LOG_USER_N("%s", ptr
);
558 /* GRR we must chunk - not null terminated */
568 memcpy(chunk
, ptr
, x
);
572 LOG_USER_N("%s", chunk
);
580 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
582 /* TCL wants to read... tell him no */
586 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
597 cp
= alloc_vprintf(fmt
, ap
);
600 LOG_USER_N("%s", cp
);
607 static int openocd_jim_fflush(void *cookie
)
609 /* nothing to flush */
613 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
620 command_context_t
* command_init()
622 command_context_t
* context
= malloc(sizeof(command_context_t
));
623 extern unsigned const char startup_tcl
[];
625 context
->mode
= COMMAND_EXEC
;
626 context
->commands
= NULL
;
627 context
->current_target
= 0;
628 context
->output_handler
= NULL
;
629 context
->output_handler_priv
= NULL
;
633 /* Create an interpreter */
634 interp
= Jim_CreateInterp();
635 /* Add all the Jim core commands */
636 Jim_RegisterCoreCommands(interp
);
639 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
640 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
642 /* Set Jim's STDIO */
643 interp
->cookie_stdin
= interp
;
644 interp
->cookie_stdout
= interp
;
645 interp
->cookie_stderr
= interp
;
646 interp
->cb_fwrite
= openocd_jim_fwrite
;
647 interp
->cb_fread
= openocd_jim_fread
;
648 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
649 interp
->cb_fflush
= openocd_jim_fflush
;
650 interp
->cb_fgets
= openocd_jim_fgets
;
654 if (Jim_Eval(interp
, startup_tcl
)==JIM_ERR
)
656 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD compile time)");
657 Jim_PrintErrorMessage(interp
);
661 register_command(context
, NULL
, "sleep", handle_sleep_command
,
662 COMMAND_ANY
, "sleep for <n> milliseconds");
664 register_command(context
, NULL
, "fast", handle_fast_command
,
665 COMMAND_ANY
, "fast <enable/disable> - place at beginning of config files. Sets defaults to fast and dangerous.");
670 int command_context_mode(command_context_t
*cmd_ctx
, enum command_mode mode
)
673 return ERROR_INVALID_ARGUMENTS
;
675 cmd_ctx
->mode
= mode
;
679 /* sleep command sleeps for <n> miliseconds
680 * this is useful in target startup scripts
682 int handle_sleep_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
684 unsigned long duration
= 0;
688 duration
= strtoul(args
[0], NULL
, 0);
689 usleep(duration
* 1000);
695 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
698 return ERROR_COMMAND_SYNTAX_ERROR
;
700 fast_and_dangerous
= strcmp("enable", args
[0])==0;
705 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
)
707 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
709 /* FIX!!! it would be prettier to invoke add_help_text...
710 accumulate help text in Tcl helptext list. */
711 Jim_Obj
*helptext
=Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
712 if (Jim_IsShared(helptext
))
713 helptext
= Jim_DuplicateObj(interp
, helptext
);
715 Jim_Obj
*cmd_entry
=Jim_NewListObj(interp
, NULL
, 0);
717 Jim_Obj
*cmd_list
=Jim_NewListObj(interp
, NULL
, 0);
718 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, name
, -1));
720 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
721 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
722 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
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