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 int handle_sleep_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
51 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
53 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
);
55 static void tcl_output(void *privData
, const char *file
, int line
, const char *function
, const char *string
)
57 Jim_Obj
*tclOutput
= (Jim_Obj
*)privData
;
59 Jim_AppendString(interp
, tclOutput
, string
, strlen(string
));
62 extern command_context_t
*global_cmd_ctx
;
64 void script_debug(Jim_Interp
*interp
, const char *name
, int argc
, Jim_Obj
*const *argv
)
68 LOG_DEBUG("command - %s", name
);
69 for (i
= 0; i
< argc
; i
++) {
71 const char *w
= Jim_GetString(argv
[i
], &len
);
73 /* end of line comment? */
77 LOG_DEBUG("%s - argv[%d]=%s", name
, i
, w
);
81 static int script_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
83 /* the private data is stashed in the interp structure */
85 command_context_t
*context
;
91 /* DANGER!!!! be careful what we invoke here, since interp->cmdPrivData might
92 * get overwritten by running other Jim commands! Treat it as an
93 * emphemeral global variable that is used in lieu of an argument
94 * to the fn and fish it out manually.
96 c
= interp
->cmdPrivData
;
99 LOG_ERROR("BUG: interp->cmdPrivData == NULL");
102 target_call_timer_callbacks_now();
103 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
105 script_debug(interp
, c
->name
, argc
, argv
);
107 words
= malloc(sizeof(char *) * argc
);
108 for (i
= 0; i
< argc
; i
++)
111 const char *w
= Jim_GetString(argv
[i
], &len
);
114 /* hit an end of line comment */
117 words
[i
] = strdup(w
);
118 if (words
[i
] == NULL
)
121 for (j
= 0; j
< i
; j
++)
129 /* grab the command context from the associated data */
130 context
= Jim_GetAssocData(interp
, "context");
133 /* Tcl can invoke commands directly instead of via command_run_line(). This would
134 * happen when the Jim Tcl interpreter is provided by eCos.
136 context
= global_cmd_ctx
;
139 /* capture log output and return it */
140 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
141 /* a garbage collect can happen, so we need a reference count to this object */
142 Jim_IncrRefCount(tclOutput
);
144 log_add_callback(tcl_output
, tclOutput
);
146 retval
= run_command(context
, c
, words
, nwords
);
148 log_remove_callback(tcl_output
, tclOutput
);
150 /* We dump output into this local variable */
151 Jim_SetResult(interp
, tclOutput
);
152 Jim_DecrRefCount(interp
, tclOutput
);
154 for (i
= 0; i
< nwords
; i
++)
158 int *return_retval
= Jim_GetAssocData(interp
, "retval");
159 if (return_retval
!= NULL
)
161 *return_retval
= retval
;
164 return (retval
== ERROR_OK
)?JIM_OK
:JIM_ERR
;
167 /* nice short description of source file */
168 #define __THIS__FILE__ "command.c"
170 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
)
174 if (!context
|| !name
)
177 c
= malloc(sizeof(command_t
));
179 c
->name
= strdup(name
);
182 c
->handler
= handler
;
188 /* place command in tree */
191 if (parent
->children
)
193 /* find last child */
194 for (p
= parent
->children
; p
&& p
->next
; p
= p
->next
);
200 parent
->children
= c
;
205 if (context
->commands
)
207 /* find last command */
208 for (p
= context
->commands
; p
&& p
->next
; p
= p
->next
);
214 context
->commands
= c
;
218 /* just a placeholder, no handler */
219 if (c
->handler
== NULL
)
222 /* If this is a two level command, e.g. "flash banks", then the
223 * "unknown" proc in startup.tcl must redirect to this command.
225 * "flash banks" is translated by "unknown" to "flash_banks"
226 * if such a proc exists
228 /* Print help for command */
232 /* maximum of two levels :-) */
233 if (c
->parent
!= NULL
)
235 t1
= c
->parent
->name
;
239 const char *full_name
= alloc_printf("ocd_%s%s%s", t1
, t2
, t3
);
240 Jim_CreateCommand(interp
, full_name
, script_command
, c
, NULL
);
241 free((void *)full_name
);
243 /* we now need to add an overrideable proc */
244 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
);
245 Jim_Eval_Named(interp
, override_name
, __THIS__FILE__
, __LINE__
);
246 free((void *)override_name
);
248 /* accumulate help text in Tcl helptext list. */
249 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
250 if (Jim_IsShared(helptext
))
251 helptext
= Jim_DuplicateObj(interp
, helptext
);
252 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
254 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
256 /* maximum of two levels :-) */
257 if (c
->parent
!= NULL
)
259 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->parent
->name
, -1));
261 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, c
->name
, -1));
263 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
264 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
265 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
269 int unregister_all_commands(command_context_t
*context
)
276 while (NULL
!= context
->commands
)
278 c
= context
->commands
;
280 while (NULL
!= c
->children
)
283 c
->children
= c
->children
->next
;
290 context
->commands
= context
->commands
->next
;
301 int unregister_command(command_context_t
*context
, char *name
)
303 command_t
*c
, *p
= NULL
, *c2
;
305 if ((!context
) || (!name
))
306 return ERROR_INVALID_ARGUMENTS
;
309 c
= context
->commands
;
313 if (strcmp(name
, c
->name
) == 0)
322 /* first element in command list */
323 context
->commands
= c
->next
;
326 /* unregister children */
327 while (NULL
!= c
->children
)
330 c
->children
= c
->children
->next
;
345 /* remember the last command for unlinking */
353 void command_output_text(command_context_t
*context
, const char *data
)
355 if (context
&& context
->output_handler
&& data
) {
356 context
->output_handler(context
, data
);
360 void command_print_sameline(command_context_t
*context
, const char *format
, ...)
365 va_start(ap
, format
);
367 string
= alloc_vprintf(format
, ap
);
370 /* we want this collected in the log + we also want to pick it up as a tcl return
373 * The latter bit isn't precisely neat, but will do for now.
375 LOG_USER_N("%s", string
);
376 /* We already printed it above */
377 /* command_output_text(context, string); */
384 void command_print(command_context_t
*context
, const char *format
, ...)
389 va_start(ap
, format
);
391 string
= alloc_vprintf(format
, ap
);
394 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
395 /* we want this collected in the log + we also want to pick it up as a tcl return
398 * The latter bit isn't precisely neat, but will do for now.
400 LOG_USER_N("%s", string
);
401 /* We already printed it above */
402 /* command_output_text(context, string); */
409 int run_command(command_context_t
*context
, command_t
*c
, char *words
[], int num_words
)
412 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
)))
414 /* Config commands can not run after the config stage */
415 LOG_ERROR("Command '%s' only runs during configuration stage", c
->name
);
419 int retval
= c
->handler(context
, c
->name
, words
+ start_word
+ 1, num_words
- start_word
- 1);
420 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
422 /* Print help for command */
426 /* maximum of two levels :-) */
427 if (c
->parent
!= NULL
)
429 t1
= c
->parent
->name
;
433 command_run_linef(context
, "help {%s%s%s}", t1
, t2
, t3
);
435 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
437 /* just fall through for a shutdown request */
439 else if (retval
!= ERROR_OK
)
441 /* we do not print out an error message because the command *should*
442 * have printed out an error
444 LOG_DEBUG("Command failed with error code %d", retval
);
450 int command_run_line(command_context_t
*context
, char *line
)
452 /* all the parent commands have been registered with the interpreter
453 * so, can just evaluate the line as a script and check for
456 /* run the line thru a script engine */
457 int retval
= ERROR_FAIL
;
459 /* Beware! This code needs to be reentrant. It is also possible
460 * for OpenOCD commands to be invoked directly from Tcl. This would
461 * happen when the Jim Tcl interpreter is provided by eCos for
464 Jim_DeleteAssocData(interp
, "context");
465 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
466 if (retcode
== JIM_OK
)
468 /* associated the return value */
469 Jim_DeleteAssocData(interp
, "retval");
470 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
471 if (retcode
== JIM_OK
)
473 retcode
= Jim_Eval_Named(interp
, line
, __THIS__FILE__
, __LINE__
);
475 Jim_DeleteAssocData(interp
, "retval");
477 Jim_DeleteAssocData(interp
, "context");
479 if (retcode
== JIM_ERR
) {
480 if (retval
!= ERROR_COMMAND_CLOSE_CONNECTION
)
482 /* We do not print the connection closed error message */
483 Jim_PrintErrorMessage(interp
);
485 if (retval
== ERROR_OK
)
487 /* It wasn't a low level OpenOCD command that failed */
491 } else if (retcode
== JIM_EXIT
) {
493 /* exit(Jim_GetExitCode(interp)); */
498 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
503 for (i
= 0; i
< reslen
; i
+= 256)
509 strncpy(buff
, result
+ i
, chunk
);
511 LOG_USER_N("%s", buff
);
513 LOG_USER_N("%s", "\n");
520 int command_run_linef(command_context_t
*context
, const char *format
, ...)
522 int retval
= ERROR_FAIL
;
525 va_start(ap
, format
);
526 string
= alloc_vprintf(format
, ap
);
529 retval
= command_run_line(context
, string
);
535 void command_set_output_handler(command_context_t
* context
, int (*output_handler
)(struct command_context_s
*context
, const char* line
), void *priv
)
537 context
->output_handler
= output_handler
;
538 context
->output_handler_priv
= priv
;
541 command_context_t
* copy_command_context(command_context_t
* context
)
543 command_context_t
* copy_context
= malloc(sizeof(command_context_t
));
545 *copy_context
= *context
;
550 int command_done(command_context_t
*context
)
558 /* find full path to file */
559 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
563 const char *file
= Jim_GetString(argv
[1], NULL
);
564 char *full_path
= find_file(file
);
565 if (full_path
== NULL
)
567 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
570 Jim_SetResult(interp
, result
);
574 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
578 const char *str
= Jim_GetString(argv
[1], NULL
);
583 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
589 /* make it a char easier to read code */
593 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
597 /* do we have to chunk it? */
598 if (ptr
[nbytes
] == 0)
600 /* no it is a C style string */
601 LOG_USER_N("%s", ptr
);
604 /* GRR we must chunk - not null terminated */
614 memcpy(chunk
, ptr
, x
);
618 LOG_USER_N("%s", chunk
);
626 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
628 /* TCL wants to read... tell him no */
632 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
643 cp
= alloc_vprintf(fmt
, ap
);
646 LOG_USER_N("%s", cp
);
653 static int openocd_jim_fflush(void *cookie
)
655 /* nothing to flush */
659 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
666 static int jim_capture(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
671 const char *str
= Jim_GetString(argv
[1], NULL
);
673 /* capture log output and return it */
674 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
675 /* a garbage collect can happen, so we need a reference count to this object */
676 Jim_IncrRefCount(tclOutput
);
678 log_add_callback(tcl_output
, tclOutput
);
680 retcode
= Jim_Eval_Named(interp
, str
, __THIS__FILE__
, __LINE__
);
682 log_remove_callback(tcl_output
, tclOutput
);
684 /* We dump output into this local variable */
685 Jim_SetResult(interp
, tclOutput
);
686 Jim_DecrRefCount(interp
, tclOutput
);
691 command_context_t
* command_init()
693 command_context_t
* context
= malloc(sizeof(command_context_t
));
694 extern const char startup_tcl
[];
697 context
->mode
= COMMAND_EXEC
;
698 context
->commands
= NULL
;
699 context
->current_target
= 0;
700 context
->output_handler
= NULL
;
701 context
->output_handler_priv
= NULL
;
705 /* Create an interpreter */
706 interp
= Jim_CreateInterp();
707 /* Add all the Jim core commands */
708 Jim_RegisterCoreCommands(interp
);
711 #if defined(_MSC_VER)
712 /* WinXX - is generic, the forward
713 * looking problem is this:
717 * "winxx" is generic.
720 #elif defined(__LINUX__)
722 #elif defined(__DARWIN__)
724 #elif defined(__CYGWIN__)
726 #elif defined(__MINGW32__)
731 Jim_SetGlobalVariableStr(interp
, "ocd_HOSTOS", Jim_NewStringObj(interp
, HostOs
, strlen(HostOs
)));
733 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
734 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
735 Jim_CreateCommand(interp
, "capture", jim_capture
, NULL
, NULL
);
737 /* Set Jim's STDIO */
738 interp
->cookie_stdin
= interp
;
739 interp
->cookie_stdout
= interp
;
740 interp
->cookie_stderr
= interp
;
741 interp
->cb_fwrite
= openocd_jim_fwrite
;
742 interp
->cb_fread
= openocd_jim_fread
;
743 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
744 interp
->cb_fflush
= openocd_jim_fflush
;
745 interp
->cb_fgets
= openocd_jim_fgets
;
748 Jim_EventLoopOnLoad(interp
);
750 if (Jim_Eval_Named(interp
, startup_tcl
, "embedded:startup.tcl",1) == JIM_ERR
)
752 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD compile time)");
753 Jim_PrintErrorMessage(interp
);
757 register_command(context
, NULL
, "sleep", handle_sleep_command
,
758 COMMAND_ANY
, "<n> [busy] - sleep for n milliseconds. \"busy\" means busy wait");
760 register_command(context
, NULL
, "fast", handle_fast_command
,
761 COMMAND_ANY
, "fast <enable/disable> - place at beginning of config files. Sets defaults to fast and dangerous.");
766 int command_context_mode(command_context_t
*cmd_ctx
, enum command_mode mode
)
769 return ERROR_INVALID_ARGUMENTS
;
771 cmd_ctx
->mode
= mode
;
775 /* sleep command sleeps for <n> miliseconds
776 * this is useful in target startup scripts
778 int handle_sleep_command(struct command_context_s
*cmd_ctx
,
779 char *cmd
, char **args
, int argc
)
784 if (strcmp(args
[1], "busy") == 0)
787 return ERROR_COMMAND_SYNTAX_ERROR
;
789 else if (argc
< 1 || argc
> 2)
790 return ERROR_COMMAND_SYNTAX_ERROR
;
792 unsigned long duration
= 0;
793 int retval
= parse_ulong(args
[0], &duration
);
794 if (ERROR_OK
!= retval
)
799 long long then
= timeval_ms();
800 while (timeval_ms() - then
< (long long)duration
)
802 target_call_timer_callbacks_now();
807 busy_sleep(duration
);
812 int handle_fast_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
815 return ERROR_COMMAND_SYNTAX_ERROR
;
817 fast_and_dangerous
= strcmp("enable", args
[0]) == 0;
822 void process_jim_events(void)
825 static int recursion
= 0;
830 Jim_ProcessEvents (interp
, JIM_ALL_EVENTS
| JIM_DONT_WAIT
);
836 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
)
838 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
840 /* FIX!!! it would be prettier to invoke add_help_text...
841 * accumulate help text in Tcl helptext list. */
842 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
, "ocd_helptext", JIM_ERRMSG
);
843 if (Jim_IsShared(helptext
))
844 helptext
= Jim_DuplicateObj(interp
, helptext
);
846 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
848 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
849 Jim_ListAppendElement(interp
, cmd_list
, Jim_NewStringObj(interp
, name
, -1));
851 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
852 Jim_ListAppendElement(interp
, cmd_entry
, Jim_NewStringObj(interp
, help
, -1));
853 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
856 /* return global variable long value or 0 upon failure */
857 long jim_global_long(const char *variable
)
859 Jim_Obj
*objPtr
= Jim_GetGlobalVariableStr(interp
, variable
, JIM_ERRMSG
);
861 if (Jim_GetLong(interp
, objPtr
, &t
) == JIM_OK
)
868 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
869 int parse##name(const char *str, type *ul) \
873 LOG_ERROR("Invalid command argument"); \
874 return ERROR_COMMAND_ARGUMENT_INVALID; \
877 *ul = func(str, &end, 0); \
880 LOG_ERROR("Invalid command argument"); \
881 return ERROR_COMMAND_ARGUMENT_INVALID; \
883 if ((max == *ul) && (ERANGE == errno)) \
885 LOG_ERROR("Argument overflow"); \
886 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
888 if (min && (min == *ul) && (ERANGE == errno)) \
890 LOG_ERROR("Argument underflow"); \
891 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
895 DEFINE_PARSE_NUM_TYPE(_ulong
, unsigned long , strtoul
, 0, ULONG_MAX
)
896 DEFINE_PARSE_NUM_TYPE(_ullong
, unsigned long long, strtoull
, 0, ULLONG_MAX
)
897 DEFINE_PARSE_NUM_TYPE(_long
, long , strtol
, LONG_MIN
, LONG_MAX
)
898 DEFINE_PARSE_NUM_TYPE(_llong
, long long, strtoll
, LLONG_MIN
, LLONG_MAX
)
900 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
901 int parse##name(const char *str, type *ul) \
904 int retval = parse##funcname(str, &n); \
905 if (ERROR_OK != retval) \
908 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
910 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
915 #define DEFINE_PARSE_ULONG(name, type, min, max) \
916 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
917 DEFINE_PARSE_ULONG(_uint
, unsigned, 0, UINT_MAX
)
918 DEFINE_PARSE_ULONG(_u32
, uint32_t, 0, UINT32_MAX
)
919 DEFINE_PARSE_ULONG(_u16
, uint16_t, 0, UINT16_MAX
)
920 DEFINE_PARSE_ULONG(_u8
, uint8_t, 0, UINT8_MAX
)
922 #define DEFINE_PARSE_LONG(name, type, min, max) \
923 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
924 DEFINE_PARSE_LONG(_int
, int, n
< INT_MIN
, INT_MAX
)
925 DEFINE_PARSE_LONG(_s32
, int32_t, n
< INT32_MIN
, INT32_MAX
)
926 DEFINE_PARSE_LONG(_s16
, int16_t, n
< INT16_MIN
, INT16_MAX
)
927 DEFINE_PARSE_LONG(_s8
, int8_t, n
< INT8_MIN
, INT8_MAX
)
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