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 ***************************************************************************/
34 /* see Embedder-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
38 // @todo the inclusion of target.h here is a layering violation
41 #include "configuration.h"
43 #include "time_support.h"
44 #include "jim-eventloop.h"
47 int fast_and_dangerous
= 0;
48 Jim_Interp
*interp
= NULL
;
50 static int run_command(command_context_t
*context
,
51 command_t
*c
, char *words
[], unsigned num_words
);
53 static void tcl_output(void *privData
, const char *file
, unsigned line
,
54 const char *function
, const char *string
)
56 Jim_Obj
*tclOutput
= (Jim_Obj
*)privData
;
57 Jim_AppendString(interp
, tclOutput
, string
, strlen(string
));
60 extern command_context_t
*global_cmd_ctx
;
62 void script_debug(Jim_Interp
*interp
, const char *name
, int argc
, Jim_Obj
*const *argv
)
66 LOG_DEBUG("command - %s", name
);
67 for (i
= 0; i
< argc
; i
++) {
69 const char *w
= Jim_GetString(argv
[i
], &len
);
71 /* end of line comment? */
75 LOG_DEBUG("%s - argv[%d]=%s", name
, i
, w
);
79 static int script_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
81 /* the private data is stashed in the interp structure */
83 command_context_t
*context
;
89 /* DANGER!!!! be careful what we invoke here, since interp->cmdPrivData might
90 * get overwritten by running other Jim commands! Treat it as an
91 * emphemeral global variable that is used in lieu of an argument
92 * to the fn and fish it out manually.
94 c
= interp
->cmdPrivData
;
97 LOG_ERROR("BUG: interp->cmdPrivData == NULL");
100 target_call_timer_callbacks_now();
101 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
103 script_debug(interp
, c
->name
, argc
, argv
);
105 words
= malloc(sizeof(char *) * argc
);
106 for (i
= 0; i
< argc
; i
++)
109 const char *w
= Jim_GetString(argv
[i
], &len
);
112 /* hit an end of line comment */
115 words
[i
] = strdup(w
);
116 if (words
[i
] == NULL
)
119 for (j
= 0; j
< i
; j
++)
127 /* grab the command context from the associated data */
128 context
= Jim_GetAssocData(interp
, "context");
131 /* Tcl can invoke commands directly instead of via command_run_line(). This would
132 * happen when the Jim Tcl interpreter is provided by eCos.
134 context
= global_cmd_ctx
;
137 /* capture log output and return it */
138 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
139 /* a garbage collect can happen, so we need a reference count to this object */
140 Jim_IncrRefCount(tclOutput
);
142 log_add_callback(tcl_output
, tclOutput
);
144 retval
= run_command(context
, c
, words
, nwords
);
146 log_remove_callback(tcl_output
, tclOutput
);
148 /* We dump output into this local variable */
149 Jim_SetResult(interp
, tclOutput
);
150 Jim_DecrRefCount(interp
, tclOutput
);
152 for (i
= 0; i
< nwords
; i
++)
156 int *return_retval
= Jim_GetAssocData(interp
, "retval");
157 if (return_retval
!= NULL
)
159 *return_retval
= retval
;
162 return (retval
== ERROR_OK
)?JIM_OK
:JIM_ERR
;
165 /* nice short description of source file */
166 #define __THIS__FILE__ "command.c"
168 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
)
172 if (!context
|| !name
)
175 c
= malloc(sizeof(command_t
));
177 c
->name
= strdup(name
);
180 c
->handler
= handler
;
186 /* place command in tree */
189 if (parent
->children
)
191 /* find last child */
192 for (p
= parent
->children
; p
&& p
->next
; p
= p
->next
);
198 parent
->children
= c
;
203 if (context
->commands
)
205 /* find last command */
206 for (p
= context
->commands
; p
&& p
->next
; p
= p
->next
);
212 context
->commands
= c
;
216 /* just a placeholder, no handler */
217 if (c
->handler
== NULL
)
220 /* If this is a two level command, e.g. "flash banks", then the
221 * "unknown" proc in startup.tcl must redirect to this command.
223 * "flash banks" is translated by "unknown" to "flash_banks"
224 * if such a proc exists
226 /* Print help for command */
230 /* maximum of two levels :-) */
231 if (c
->parent
!= NULL
)
233 t1
= c
->parent
->name
;
237 const char *full_name
= alloc_printf("ocd_%s%s%s", t1
, t2
, t3
);
238 Jim_CreateCommand(interp
, full_name
, script_command
, c
, NULL
);
239 free((void *)full_name
);
241 /* we now need to add an overrideable proc */
242 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
);
243 Jim_Eval_Named(interp
, override_name
, __THIS__FILE__
, __LINE__
);
244 free((void *)override_name
);
246 /* accumulate help text in Tcl helptext list. */
247 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
248 if (Jim_IsShared(helptext
))
249 helptext
= Jim_DuplicateObj(interp
, helptext
);
250 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
252 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
254 /* maximum of two levels :-) */
255 if (c
->parent
!= NULL
)
257 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->parent
->name
, -1));
259 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->name
, -1));
261 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
262 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
263 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
267 int unregister_all_commands(command_context_t
*context
)
274 while (NULL
!= context
->commands
)
276 c
= context
->commands
;
278 while (NULL
!= c
->children
)
281 c
->children
= c
->children
->next
;
288 context
->commands
= context
->commands
->next
;
299 int unregister_command(command_context_t
*context
, char *name
)
301 command_t
*c
, *p
= NULL
, *c2
;
303 if ((!context
) || (!name
))
304 return ERROR_INVALID_ARGUMENTS
;
307 c
= context
->commands
;
311 if (strcmp(name
, c
->name
) == 0)
320 /* first element in command list */
321 context
->commands
= c
->next
;
324 /* unregister children */
325 while (NULL
!= c
->children
)
328 c
->children
= c
->children
->next
;
343 /* remember the last command for unlinking */
351 void command_output_text(command_context_t
*context
, const char *data
)
353 if (context
&& context
->output_handler
&& data
) {
354 context
->output_handler(context
, data
);
358 void command_print_sameline(command_context_t
*context
, const char *format
, ...)
363 va_start(ap
, format
);
365 string
= alloc_vprintf(format
, ap
);
368 /* we want this collected in the log + we also want to pick it up as a tcl return
371 * The latter bit isn't precisely neat, but will do for now.
373 LOG_USER_N("%s", string
);
374 /* We already printed it above */
375 /* command_output_text(context, string); */
382 void command_print(command_context_t
*context
, const char *format
, ...)
387 va_start(ap
, format
);
389 string
= alloc_vprintf(format
, ap
);
392 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
393 /* we want this collected in the log + we also want to pick it up as a tcl return
396 * The latter bit isn't precisely neat, but will do for now.
398 LOG_USER_N("%s", string
);
399 /* We already printed it above */
400 /* command_output_text(context, string); */
407 static int run_command(command_context_t
*context
,
408 command_t
*c
, char *words
[], unsigned num_words
)
411 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
)))
413 /* Config commands can not run after the config stage */
414 LOG_ERROR("Command '%s' only runs during configuration stage", c
->name
);
418 int retval
= c
->handler(context
, c
->name
, words
+ start_word
+ 1, num_words
- start_word
- 1);
419 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
421 /* Print help for command */
425 /* maximum of two levels :-) */
426 if (c
->parent
!= NULL
)
428 t1
= c
->parent
->name
;
432 command_run_linef(context
, "help {%s%s%s}", t1
, t2
, t3
);
434 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
436 /* just fall through for a shutdown request */
438 else if (retval
!= ERROR_OK
)
440 /* we do not print out an error message because the command *should*
441 * have printed out an error
443 LOG_DEBUG("Command failed with error code %d", retval
);
449 int command_run_line(command_context_t
*context
, char *line
)
451 /* all the parent commands have been registered with the interpreter
452 * so, can just evaluate the line as a script and check for
455 /* run the line thru a script engine */
456 int retval
= ERROR_FAIL
;
458 /* Beware! This code needs to be reentrant. It is also possible
459 * for OpenOCD commands to be invoked directly from Tcl. This would
460 * happen when the Jim Tcl interpreter is provided by eCos for
463 Jim_DeleteAssocData(interp
, "context");
464 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
465 if (retcode
== JIM_OK
)
467 /* associated the return value */
468 Jim_DeleteAssocData(interp
, "retval");
469 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
470 if (retcode
== JIM_OK
)
472 retcode
= Jim_Eval_Named(interp
, line
, __THIS__FILE__
, __LINE__
);
474 Jim_DeleteAssocData(interp
, "retval");
476 Jim_DeleteAssocData(interp
, "context");
478 if (retcode
== JIM_ERR
) {
479 if (retval
!= ERROR_COMMAND_CLOSE_CONNECTION
)
481 /* We do not print the connection closed error message */
482 Jim_PrintErrorMessage(interp
);
484 if (retval
== ERROR_OK
)
486 /* It wasn't a low level OpenOCD command that failed */
490 } else if (retcode
== JIM_EXIT
) {
492 /* exit(Jim_GetExitCode(interp)); */
497 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
502 for (i
= 0; i
< reslen
; i
+= 256)
508 strncpy(buff
, result
+ i
, chunk
);
510 LOG_USER_N("%s", buff
);
512 LOG_USER_N("%s", "\n");
519 int command_run_linef(command_context_t
*context
, const char *format
, ...)
521 int retval
= ERROR_FAIL
;
524 va_start(ap
, format
);
525 string
= alloc_vprintf(format
, ap
);
528 retval
= command_run_line(context
, string
);
534 void command_set_output_handler(command_context_t
* context
, int (*output_handler
)(struct command_context_s
*context
, const char* line
), void *priv
)
536 context
->output_handler
= output_handler
;
537 context
->output_handler_priv
= priv
;
540 command_context_t
* copy_command_context(command_context_t
* context
)
542 command_context_t
* copy_context
= malloc(sizeof(command_context_t
));
544 *copy_context
= *context
;
549 int command_done(command_context_t
*context
)
557 /* find full path to file */
558 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
562 const char *file
= Jim_GetString(argv
[1], NULL
);
563 char *full_path
= find_file(file
);
564 if (full_path
== NULL
)
566 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
569 Jim_SetResult(interp
, result
);
573 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
577 const char *str
= Jim_GetString(argv
[1], NULL
);
582 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
588 /* make it a char easier to read code */
592 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
596 /* do we have to chunk it? */
597 if (ptr
[nbytes
] == 0)
599 /* no it is a C style string */
600 LOG_USER_N("%s", ptr
);
603 /* GRR we must chunk - not null terminated */
613 memcpy(chunk
, ptr
, x
);
617 LOG_USER_N("%s", chunk
);
625 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
627 /* TCL wants to read... tell him no */
631 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
642 cp
= alloc_vprintf(fmt
, ap
);
645 LOG_USER_N("%s", cp
);
652 static int openocd_jim_fflush(void *cookie
)
654 /* nothing to flush */
658 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
665 static int jim_capture(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
670 const char *str
= Jim_GetString(argv
[1], NULL
);
672 /* capture log output and return it */
673 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
674 /* a garbage collect can happen, so we need a reference count to this object */
675 Jim_IncrRefCount(tclOutput
);
677 log_add_callback(tcl_output
, tclOutput
);
679 retcode
= Jim_Eval_Named(interp
, str
, __THIS__FILE__
, __LINE__
);
681 log_remove_callback(tcl_output
, tclOutput
);
683 /* We dump output into this local variable */
684 Jim_SetResult(interp
, tclOutput
);
685 Jim_DecrRefCount(interp
, tclOutput
);
690 /* sleep command sleeps for <n> miliseconds
691 * this is useful in target startup scripts
693 static int handle_sleep_command(struct command_context_s
*cmd_ctx
,
694 char *cmd
, char **args
, int argc
)
699 if (strcmp(args
[1], "busy") == 0)
702 return ERROR_COMMAND_SYNTAX_ERROR
;
704 else if (argc
< 1 || argc
> 2)
705 return ERROR_COMMAND_SYNTAX_ERROR
;
707 unsigned long duration
= 0;
708 int retval
= parse_ulong(args
[0], &duration
);
709 if (ERROR_OK
!= retval
)
714 long long then
= timeval_ms();
715 while (timeval_ms() - then
< (long long)duration
)
717 target_call_timer_callbacks_now();
722 busy_sleep(duration
);
727 static int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
730 return ERROR_COMMAND_SYNTAX_ERROR
;
732 fast_and_dangerous
= strcmp("enable", args
[0]) == 0;
738 command_context_t
* command_init()
740 command_context_t
* context
= malloc(sizeof(command_context_t
));
741 extern const char startup_tcl
[];
744 context
->mode
= COMMAND_EXEC
;
745 context
->commands
= NULL
;
746 context
->current_target
= 0;
747 context
->output_handler
= NULL
;
748 context
->output_handler_priv
= NULL
;
752 /* Create an interpreter */
753 interp
= Jim_CreateInterp();
754 /* Add all the Jim core commands */
755 Jim_RegisterCoreCommands(interp
);
758 #if defined(_MSC_VER)
759 /* WinXX - is generic, the forward
760 * looking problem is this:
764 * "winxx" is generic.
767 #elif defined(__linux__)
769 #elif defined(__DARWIN__)
771 #elif defined(__CYGWIN__)
773 #elif defined(__MINGW32__)
775 #elif defined(__ECOS)
778 #warn unrecognized host OS...
781 Jim_SetGlobalVariableStr(interp
, "ocd_HOSTOS",
782 Jim_NewStringObj(interp
, HostOs
, strlen(HostOs
)));
784 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
785 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
786 Jim_CreateCommand(interp
, "capture", jim_capture
, NULL
, NULL
);
788 /* Set Jim's STDIO */
789 interp
->cookie_stdin
= interp
;
790 interp
->cookie_stdout
= interp
;
791 interp
->cookie_stderr
= interp
;
792 interp
->cb_fwrite
= openocd_jim_fwrite
;
793 interp
->cb_fread
= openocd_jim_fread
;
794 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
795 interp
->cb_fflush
= openocd_jim_fflush
;
796 interp
->cb_fgets
= openocd_jim_fgets
;
799 Jim_EventLoopOnLoad(interp
);
801 if (Jim_Eval_Named(interp
, startup_tcl
, "embedded:startup.tcl",1) == JIM_ERR
)
803 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
804 Jim_PrintErrorMessage(interp
);
808 register_command(context
, NULL
, "sleep",
809 handle_sleep_command
, COMMAND_ANY
,
810 "<n> [busy] - sleep for n milliseconds. "
811 "\"busy\" means busy wait");
812 register_command(context
, NULL
, "fast",
813 handle_fast_command
, COMMAND_ANY
,
814 "fast <enable/disable> - place at beginning of "
815 "config files. Sets defaults to fast and dangerous.");
820 int command_context_mode(command_context_t
*cmd_ctx
, enum command_mode mode
)
823 return ERROR_INVALID_ARGUMENTS
;
825 cmd_ctx
->mode
= mode
;
829 void process_jim_events(void)
832 static int recursion
= 0;
837 Jim_ProcessEvents (interp
, JIM_ALL_EVENTS
| JIM_DONT_WAIT
);
843 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
)
845 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
847 /* FIX!!! it would be prettier to invoke add_help_text...
848 * accumulate help text in Tcl helptext list. */
849 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
850 if (Jim_IsShared(helptext
))
851 helptext
= Jim_DuplicateObj(interp
, helptext
);
853 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
855 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
856 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, name
, -1));
858 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
859 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
860 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
863 /* return global variable long value or 0 upon failure */
864 long jim_global_long(const char *variable
)
866 Jim_Obj
*objPtr
= Jim_GetGlobalVariableStr(interp
, variable
, JIM_ERRMSG
);
868 if (Jim_GetLong(interp
, objPtr
, &t
) == JIM_OK
)
875 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
876 int parse##name(const char *str, type *ul) \
880 LOG_ERROR("Invalid command argument"); \
881 return ERROR_COMMAND_ARGUMENT_INVALID; \
884 *ul = func(str, &end, 0); \
887 LOG_ERROR("Invalid command argument"); \
888 return ERROR_COMMAND_ARGUMENT_INVALID; \
890 if ((max == *ul) && (ERANGE == errno)) \
892 LOG_ERROR("Argument overflow"); \
893 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
895 if (min && (min == *ul) && (ERANGE == errno)) \
897 LOG_ERROR("Argument underflow"); \
898 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
902 DEFINE_PARSE_NUM_TYPE(_ulong
, unsigned long , strtoul
, 0, ULONG_MAX
)
903 DEFINE_PARSE_NUM_TYPE(_ullong
, unsigned long long, strtoull
, 0, ULLONG_MAX
)
904 DEFINE_PARSE_NUM_TYPE(_long
, long , strtol
, LONG_MIN
, LONG_MAX
)
905 DEFINE_PARSE_NUM_TYPE(_llong
, long long, strtoll
, LLONG_MIN
, LLONG_MAX
)
907 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
908 int parse##name(const char *str, type *ul) \
911 int retval = parse##funcname(str, &n); \
912 if (ERROR_OK != retval) \
915 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
917 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
922 #define DEFINE_PARSE_ULONG(name, type, min, max) \
923 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
924 DEFINE_PARSE_ULONG(_uint
, unsigned, 0, UINT_MAX
)
925 DEFINE_PARSE_ULONG(_u32
, uint32_t, 0, UINT32_MAX
)
926 DEFINE_PARSE_ULONG(_u16
, uint16_t, 0, UINT16_MAX
)
927 DEFINE_PARSE_ULONG(_u8
, uint8_t, 0, UINT8_MAX
)
929 #define DEFINE_PARSE_LONG(name, type, min, max) \
930 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
931 DEFINE_PARSE_LONG(_int
, int, n
< INT_MIN
, INT_MAX
)
932 DEFINE_PARSE_LONG(_s32
, int32_t, n
< INT32_MIN
, INT32_MAX
)
933 DEFINE_PARSE_LONG(_s16
, int16_t, n
< INT16_MIN
, INT16_MAX
)
934 DEFINE_PARSE_LONG(_s8
, int8_t, n
< INT8_MIN
, INT8_MAX
)
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