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
, const 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
,
63 unsigned argc
, Jim_Obj
*const *argv
)
65 LOG_DEBUG("command - %s", name
);
66 for (unsigned 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
, (const char **)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 static Jim_Obj
*command_name_list(struct command_s
*c
)
167 Jim_Obj
*cmd_list
= c
->parent
?
168 command_name_list(c
->parent
) :
169 Jim_NewListObj(interp
, NULL
, 0);
170 Jim_ListAppendElement(interp
, cmd_list
,
171 Jim_NewStringObj(interp
, c
->name
, -1));
176 static void command_helptext_add(Jim_Obj
*cmd_list
, const char *help
)
178 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
179 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
180 Jim_ListAppendElement(interp
, cmd_entry
,
181 Jim_NewStringObj(interp
, help
? : "", -1));
183 /* accumulate help text in Tcl helptext list. */
184 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
,
185 "ocd_helptext", JIM_ERRMSG
);
186 if (Jim_IsShared(helptext
))
187 helptext
= Jim_DuplicateObj(interp
, helptext
);
188 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
191 /* nice short description of source file */
192 #define __THIS__FILE__ "command.c"
195 * Find a command by name from a list of commands.
196 * @returns The named command if found, or NULL.
198 static struct command_s
*command_find(struct command_s
**head
, const char *name
)
201 for (struct command_s
*cc
= *head
; cc
; cc
= cc
->next
)
203 if (strcmp(cc
->name
, name
) == 0)
210 * Add the command to the end of linked list.
211 * @returns Returns false if the named command already exists in the list.
212 * Returns true otherwise.
214 static void command_add_child(struct command_s
**head
, struct command_s
*c
)
222 struct command_s
*cc
= *head
;
223 while (cc
->next
) cc
= cc
->next
;
227 command_t
* register_command(command_context_t
*context
,
228 command_t
*parent
, char *name
, command_handler_t handler
,
229 enum command_mode mode
, char *help
)
231 if (!context
|| !name
)
234 struct command_s
**head
= parent
? &parent
->children
: &context
->commands
;
235 struct command_s
*c
= command_find(head
, name
);
239 c
= malloc(sizeof(command_t
));
241 c
->name
= strdup(name
);
244 c
->handler
= handler
;
248 command_add_child(head
, c
);
250 command_helptext_add(command_name_list(c
), help
);
252 /* just a placeholder, no handler */
253 if (c
->handler
== NULL
)
256 const char *full_name
= command_name(c
, '_');
258 const char *ocd_name
= alloc_printf("ocd_%s", full_name
);
259 Jim_CreateCommand(interp
, ocd_name
, script_command
, c
, NULL
);
260 free((void *)ocd_name
);
262 /* we now need to add an overrideable proc */
263 const char *override_name
= alloc_printf("proc %s {args} {"
264 "if {[catch {eval ocd_%s $args}] == 0} "
265 "{return \"\"} else {return -code error}}",
266 full_name
, full_name
);
267 Jim_Eval_Named(interp
, override_name
, __THIS__FILE__
, __LINE__
);
268 free((void *)override_name
);
270 free((void *)full_name
);
275 int unregister_all_commands(command_context_t
*context
)
282 while (NULL
!= context
->commands
)
284 c
= context
->commands
;
286 while (NULL
!= c
->children
)
289 c
->children
= c
->children
->next
;
296 context
->commands
= context
->commands
->next
;
307 int unregister_command(command_context_t
*context
, char *name
)
309 command_t
*c
, *p
= NULL
, *c2
;
311 if ((!context
) || (!name
))
312 return ERROR_INVALID_ARGUMENTS
;
315 c
= context
->commands
;
319 if (strcmp(name
, c
->name
) == 0)
328 /* first element in command list */
329 context
->commands
= c
->next
;
332 /* unregister children */
333 while (NULL
!= c
->children
)
336 c
->children
= c
->children
->next
;
351 /* remember the last command for unlinking */
359 void command_output_text(command_context_t
*context
, const char *data
)
361 if (context
&& context
->output_handler
&& data
) {
362 context
->output_handler(context
, data
);
366 void command_print_sameline(command_context_t
*context
, const char *format
, ...)
371 va_start(ap
, format
);
373 string
= alloc_vprintf(format
, ap
);
376 /* we want this collected in the log + we also want to pick it up as a tcl return
379 * The latter bit isn't precisely neat, but will do for now.
381 LOG_USER_N("%s", string
);
382 /* We already printed it above */
383 /* command_output_text(context, string); */
390 void command_print(command_context_t
*context
, const char *format
, ...)
395 va_start(ap
, format
);
397 string
= alloc_vprintf(format
, ap
);
400 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
401 /* we want this collected in the log + we also want to pick it up as a tcl return
404 * The latter bit isn't precisely neat, but will do for now.
406 LOG_USER_N("%s", string
);
407 /* We already printed it above */
408 /* command_output_text(context, string); */
415 static char *__command_name(struct command_s
*c
, char delim
, unsigned extra
)
418 unsigned len
= strlen(c
->name
);
419 if (NULL
== c
->parent
) {
420 // allocate enough for the name, child names, and '\0'
421 name
= malloc(len
+ extra
+ 1);
422 strcpy(name
, c
->name
);
424 // parent's extra must include both the space and name
425 name
= __command_name(c
->parent
, delim
, 1 + len
+ extra
);
426 char dstr
[2] = { delim
, 0 };
428 strcat(name
, c
->name
);
432 char *command_name(struct command_s
*c
, char delim
)
434 return __command_name(c
, delim
, 0);
437 static int run_command(command_context_t
*context
,
438 command_t
*c
, const char *words
[], unsigned num_words
)
441 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
)))
443 /* Config commands can not run after the config stage */
444 LOG_ERROR("Command '%s' only runs during configuration stage", c
->name
);
448 unsigned argc
= num_words
- start_word
- 1;
449 const char **args
= words
+ start_word
+ 1;
450 int retval
= c
->handler(context
, c
->name
, args
, argc
);
451 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
453 /* Print help for command */
454 char *full_name
= command_name(c
, ' ');
455 if (NULL
!= full_name
) {
456 command_run_linef(context
, "help %s", full_name
);
461 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
463 /* just fall through for a shutdown request */
465 else if (retval
!= ERROR_OK
)
467 /* we do not print out an error message because the command *should*
468 * have printed out an error
470 LOG_DEBUG("Command failed with error code %d", retval
);
476 int command_run_line(command_context_t
*context
, char *line
)
478 /* all the parent commands have been registered with the interpreter
479 * so, can just evaluate the line as a script and check for
482 /* run the line thru a script engine */
483 int retval
= ERROR_FAIL
;
485 /* Beware! This code needs to be reentrant. It is also possible
486 * for OpenOCD commands to be invoked directly from Tcl. This would
487 * happen when the Jim Tcl interpreter is provided by eCos for
490 Jim_DeleteAssocData(interp
, "context");
491 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
492 if (retcode
== JIM_OK
)
494 /* associated the return value */
495 Jim_DeleteAssocData(interp
, "retval");
496 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
497 if (retcode
== JIM_OK
)
499 retcode
= Jim_Eval_Named(interp
, line
, __THIS__FILE__
, __LINE__
);
501 Jim_DeleteAssocData(interp
, "retval");
503 Jim_DeleteAssocData(interp
, "context");
505 if (retcode
== JIM_ERR
) {
506 if (retval
!= ERROR_COMMAND_CLOSE_CONNECTION
)
508 /* We do not print the connection closed error message */
509 Jim_PrintErrorMessage(interp
);
511 if (retval
== ERROR_OK
)
513 /* It wasn't a low level OpenOCD command that failed */
517 } else if (retcode
== JIM_EXIT
) {
519 /* exit(Jim_GetExitCode(interp)); */
524 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
529 for (i
= 0; i
< reslen
; i
+= 256)
535 strncpy(buff
, result
+ i
, chunk
);
537 LOG_USER_N("%s", buff
);
539 LOG_USER_N("%s", "\n");
546 int command_run_linef(command_context_t
*context
, const char *format
, ...)
548 int retval
= ERROR_FAIL
;
551 va_start(ap
, format
);
552 string
= alloc_vprintf(format
, ap
);
555 retval
= command_run_line(context
, string
);
561 void command_set_output_handler(command_context_t
* context
,
562 command_output_handler_t output_handler
, void *priv
)
564 context
->output_handler
= output_handler
;
565 context
->output_handler_priv
= priv
;
568 command_context_t
* copy_command_context(command_context_t
* context
)
570 command_context_t
* copy_context
= malloc(sizeof(command_context_t
));
572 *copy_context
= *context
;
577 int command_done(command_context_t
*context
)
585 /* find full path to file */
586 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
590 const char *file
= Jim_GetString(argv
[1], NULL
);
591 char *full_path
= find_file(file
);
592 if (full_path
== NULL
)
594 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
597 Jim_SetResult(interp
, result
);
601 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
605 const char *str
= Jim_GetString(argv
[1], NULL
);
610 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
616 /* make it a char easier to read code */
620 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
624 /* do we have to chunk it? */
625 if (ptr
[nbytes
] == 0)
627 /* no it is a C style string */
628 LOG_USER_N("%s", ptr
);
631 /* GRR we must chunk - not null terminated */
641 memcpy(chunk
, ptr
, x
);
645 LOG_USER_N("%s", chunk
);
653 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
655 /* TCL wants to read... tell him no */
659 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
670 cp
= alloc_vprintf(fmt
, ap
);
673 LOG_USER_N("%s", cp
);
680 static int openocd_jim_fflush(void *cookie
)
682 /* nothing to flush */
686 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
693 static int jim_capture(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
698 const char *str
= Jim_GetString(argv
[1], NULL
);
700 /* capture log output and return it */
701 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
702 /* a garbage collect can happen, so we need a reference count to this object */
703 Jim_IncrRefCount(tclOutput
);
705 log_add_callback(tcl_output
, tclOutput
);
707 retcode
= Jim_Eval_Named(interp
, str
, __THIS__FILE__
, __LINE__
);
709 log_remove_callback(tcl_output
, tclOutput
);
711 /* We dump output into this local variable */
712 Jim_SetResult(interp
, tclOutput
);
713 Jim_DecrRefCount(interp
, tclOutput
);
718 /* sleep command sleeps for <n> miliseconds
719 * this is useful in target startup scripts
721 COMMAND_HANDLER(handle_sleep_command
)
726 if (strcmp(args
[1], "busy") == 0)
729 return ERROR_COMMAND_SYNTAX_ERROR
;
731 else if (argc
< 1 || argc
> 2)
732 return ERROR_COMMAND_SYNTAX_ERROR
;
734 unsigned long duration
= 0;
735 int retval
= parse_ulong(args
[0], &duration
);
736 if (ERROR_OK
!= retval
)
741 long long then
= timeval_ms();
742 while (timeval_ms() - then
< (long long)duration
)
744 target_call_timer_callbacks_now();
749 busy_sleep(duration
);
754 COMMAND_HANDLER(handle_fast_command
)
757 return ERROR_COMMAND_SYNTAX_ERROR
;
759 fast_and_dangerous
= strcmp("enable", args
[0]) == 0;
765 command_context_t
* command_init()
767 command_context_t
* context
= malloc(sizeof(command_context_t
));
768 extern const char startup_tcl
[];
771 context
->mode
= COMMAND_EXEC
;
772 context
->commands
= NULL
;
773 context
->current_target
= 0;
774 context
->output_handler
= NULL
;
775 context
->output_handler_priv
= NULL
;
779 /* Create an interpreter */
780 interp
= Jim_CreateInterp();
781 /* Add all the Jim core commands */
782 Jim_RegisterCoreCommands(interp
);
785 #if defined(_MSC_VER)
786 /* WinXX - is generic, the forward
787 * looking problem is this:
791 * "winxx" is generic.
794 #elif defined(__linux__)
796 #elif defined(__DARWIN__)
798 #elif defined(__CYGWIN__)
800 #elif defined(__MINGW32__)
802 #elif defined(__ECOS)
805 #warn unrecognized host OS...
808 Jim_SetGlobalVariableStr(interp
, "ocd_HOSTOS",
809 Jim_NewStringObj(interp
, HostOs
, strlen(HostOs
)));
811 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
812 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
813 Jim_CreateCommand(interp
, "capture", jim_capture
, NULL
, NULL
);
815 /* Set Jim's STDIO */
816 interp
->cookie_stdin
= interp
;
817 interp
->cookie_stdout
= interp
;
818 interp
->cookie_stderr
= interp
;
819 interp
->cb_fwrite
= openocd_jim_fwrite
;
820 interp
->cb_fread
= openocd_jim_fread
;
821 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
822 interp
->cb_fflush
= openocd_jim_fflush
;
823 interp
->cb_fgets
= openocd_jim_fgets
;
826 Jim_EventLoopOnLoad(interp
);
828 if (Jim_Eval_Named(interp
, startup_tcl
, "embedded:startup.tcl",1) == JIM_ERR
)
830 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
831 Jim_PrintErrorMessage(interp
);
835 register_command(context
, NULL
, "sleep",
836 handle_sleep_command
, COMMAND_ANY
,
837 "<n> [busy] - sleep for n milliseconds. "
838 "\"busy\" means busy wait");
839 register_command(context
, NULL
, "fast",
840 handle_fast_command
, COMMAND_ANY
,
841 "fast <enable/disable> - place at beginning of "
842 "config files. Sets defaults to fast and dangerous.");
847 int command_context_mode(command_context_t
*cmd_ctx
, enum command_mode mode
)
850 return ERROR_INVALID_ARGUMENTS
;
852 cmd_ctx
->mode
= mode
;
856 void process_jim_events(void)
859 static int recursion
= 0;
864 Jim_ProcessEvents (interp
, JIM_ALL_EVENTS
| JIM_DONT_WAIT
);
870 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
)
872 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
874 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
875 Jim_ListAppendElement(interp
, cmd_list
,
876 Jim_NewStringObj(interp
, name
, -1));
878 command_helptext_add(cmd_list
, help
);
881 /* return global variable long value or 0 upon failure */
882 long jim_global_long(const char *variable
)
884 Jim_Obj
*objPtr
= Jim_GetGlobalVariableStr(interp
, variable
, JIM_ERRMSG
);
886 if (Jim_GetLong(interp
, objPtr
, &t
) == JIM_OK
)
893 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
894 int parse##name(const char *str, type *ul) \
898 LOG_ERROR("Invalid command argument"); \
899 return ERROR_COMMAND_ARGUMENT_INVALID; \
902 *ul = func(str, &end, 0); \
905 LOG_ERROR("Invalid command argument"); \
906 return ERROR_COMMAND_ARGUMENT_INVALID; \
908 if ((max == *ul) && (ERANGE == errno)) \
910 LOG_ERROR("Argument overflow"); \
911 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
913 if (min && (min == *ul) && (ERANGE == errno)) \
915 LOG_ERROR("Argument underflow"); \
916 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
920 DEFINE_PARSE_NUM_TYPE(_ulong
, unsigned long , strtoul
, 0, ULONG_MAX
)
921 DEFINE_PARSE_NUM_TYPE(_ullong
, unsigned long long, strtoull
, 0, ULLONG_MAX
)
922 DEFINE_PARSE_NUM_TYPE(_long
, long , strtol
, LONG_MIN
, LONG_MAX
)
923 DEFINE_PARSE_NUM_TYPE(_llong
, long long, strtoll
, LLONG_MIN
, LLONG_MAX
)
925 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
926 int parse##name(const char *str, type *ul) \
929 int retval = parse##funcname(str, &n); \
930 if (ERROR_OK != retval) \
933 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
935 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
940 #define DEFINE_PARSE_ULONG(name, type, min, max) \
941 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
942 DEFINE_PARSE_ULONG(_uint
, unsigned, 0, UINT_MAX
)
943 DEFINE_PARSE_ULONG(_u32
, uint32_t, 0, UINT32_MAX
)
944 DEFINE_PARSE_ULONG(_u16
, uint16_t, 0, UINT16_MAX
)
945 DEFINE_PARSE_ULONG(_u8
, uint8_t, 0, UINT8_MAX
)
947 #define DEFINE_PARSE_LONG(name, type, min, max) \
948 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
949 DEFINE_PARSE_LONG(_int
, int, n
< INT_MIN
, INT_MAX
)
950 DEFINE_PARSE_LONG(_s32
, int32_t, n
< INT32_MIN
, INT32_MAX
)
951 DEFINE_PARSE_LONG(_s16
, int16_t, n
< INT16_MIN
, INT16_MAX
)
952 DEFINE_PARSE_LONG(_s8
, int8_t, n
< INT8_MIN
, INT8_MAX
)
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