#include "jim-eventloop.h"
+/* nice short description of source file */
+#define __THIS__FILE__ "command.c"
+
Jim_Interp *interp = NULL;
static int run_command(struct command_context *context,
Jim_AppendString(interp, tclOutput, string, strlen(string));
}
+static Jim_Obj *command_log_capture_start(Jim_Interp *interp)
+{
+ /* capture log output and return it. A garbage collect can
+ * happen, so we need a reference count to this object */
+ Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
+ if (NULL == tclOutput)
+ return NULL;
+ Jim_IncrRefCount(tclOutput);
+ log_add_callback(tcl_output, tclOutput);
+ return tclOutput;
+}
+
+static void command_log_capture_finish(Jim_Interp *interp, Jim_Obj *tclOutput)
+{
+ log_remove_callback(tcl_output, tclOutput);
+ Jim_SetResult(interp, tclOutput);
+ Jim_DecrRefCount(interp, tclOutput);
+}
+
+static int command_retval_set(Jim_Interp *interp, int retval)
+{
+ int *return_retval = Jim_GetAssocData(interp, "retval");
+ if (return_retval != NULL)
+ *return_retval = retval;
+
+ return (retval == ERROR_OK) ? JIM_OK : JIM_ERR;
+}
+
extern struct command_context *global_cmd_ctx;
void script_debug(Jim_Interp *interp, const char *name,
return words;
}
-static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+static struct command_context *current_command_context(void)
{
- /* the private data is stashed in the interp structure */
- struct command *c;
- struct command_context *context;
- int retval;
-
- /* DANGER!!!! be careful what we invoke here, since interp->cmdPrivData might
- * get overwritten by running other Jim commands! Treat it as an
- * emphemeral global variable that is used in lieu of an argument
- * to the fn and fish it out manually.
- */
- c = interp->cmdPrivData;
- if (c == NULL)
+ /* grab the command context from the associated data */
+ struct command_context *cmd_ctx = Jim_GetAssocData(interp, "context");
+ if (NULL == cmd_ctx)
{
- LOG_ERROR("BUG: interp->cmdPrivData == NULL");
- return JIM_ERR;
+ /* Tcl can invoke commands directly instead of via command_run_line(). This would
+ * happen when the Jim Tcl interpreter is provided by eCos.
+ */
+ cmd_ctx = global_cmd_ctx;
}
+ return cmd_ctx;
+}
+
+static int script_command_run(Jim_Interp *interp,
+ int argc, Jim_Obj *const *argv, struct command *c, bool capture)
+{
target_call_timer_callbacks_now();
LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
- script_debug(interp, c->name, argc, argv);
-
unsigned nwords;
const char **words = script_command_args_alloc(argc, argv, &nwords);
if (NULL == words)
return JIM_ERR;
- /* grab the command context from the associated data */
- context = Jim_GetAssocData(interp, "context");
- if (context == NULL)
- {
- /* Tcl can invoke commands directly instead of via command_run_line(). This would
- * happen when the Jim Tcl interpreter is provided by eCos.
- */
- context = global_cmd_ctx;
- }
-
- /* capture log output and return it */
- Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
- /* a garbage collect can happen, so we need a reference count to this object */
- Jim_IncrRefCount(tclOutput);
+ Jim_Obj *tclOutput = NULL;
+ if (capture)
+ tclOutput = command_log_capture_start(interp);
- log_add_callback(tcl_output, tclOutput);
+ struct command_context *cmd_ctx = current_command_context();
+ int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
- retval = run_command(context, c, (const char **)words, nwords);
-
- log_remove_callback(tcl_output, tclOutput);
-
- /* We dump output into this local variable */
- Jim_SetResult(interp, tclOutput);
- Jim_DecrRefCount(interp, tclOutput);
+ if (capture)
+ command_log_capture_finish(interp, tclOutput);
script_command_args_free(words, nwords);
-
- int *return_retval = Jim_GetAssocData(interp, "retval");
- if (return_retval != NULL)
- {
- *return_retval = retval;
- }
-
- return (retval == ERROR_OK)?JIM_OK:JIM_ERR;
+ return command_retval_set(interp, retval);
}
-static Jim_Obj *command_name_list(struct command *c)
+static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- Jim_Obj *cmd_list = c->parent ?
- command_name_list(c->parent) :
- Jim_NewListObj(interp, NULL, 0);
- Jim_ListAppendElement(interp, cmd_list,
- Jim_NewStringObj(interp, c->name, -1));
+ /* the private data is stashed in the interp structure */
- return cmd_list;
+ struct command *c = interp->cmdPrivData;
+ assert(c);
+ script_debug(interp, c->name, argc, argv);
+ return script_command_run(interp, argc, argv, c, true);
}
-static void command_helptext_add(Jim_Obj *cmd_list, const char *help)
+static struct command *command_root(struct command *c)
{
- Jim_Obj *cmd_entry = Jim_NewListObj(interp, NULL, 0);
- Jim_ListAppendElement(interp, cmd_entry, cmd_list);
- Jim_ListAppendElement(interp, cmd_entry,
- Jim_NewStringObj(interp, help ? : "", -1));
-
- /* accumulate help text in Tcl helptext list. */
- Jim_Obj *helptext = Jim_GetGlobalVariableStr(interp,
- "ocd_helptext", JIM_ERRMSG);
- if (Jim_IsShared(helptext))
- helptext = Jim_DuplicateObj(interp, helptext);
- Jim_ListAppendElement(interp, helptext, cmd_entry);
+ while (NULL != c->parent)
+ c = c->parent;
+ return c;
}
-/* nice short description of source file */
-#define __THIS__FILE__ "command.c"
-
/**
* Find a command by name from a list of commands.
- * @returns The named command if found, or NULL.
+ * @returns Returns the named command if it exists in the list.
+ * Returns NULL otherwise.
*/
static struct command *command_find(struct command *head, const char *name)
{
}
return NULL;
}
+struct command *command_find_in_context(struct command_context *cmd_ctx,
+ const char *name)
+{
+ return command_find(cmd_ctx->commands, name);
+}
+struct command *command_find_in_parent(struct command *parent,
+ const char *name)
+{
+ return command_find(parent->children, name);
+}
/**
- * Add the command to the end of linked list.
- * @returns Returns false if the named command already exists in the list.
- * Returns true otherwise.
+ * Add the command into the linked list, sorted by name.
+ * @param head Address to head of command list pointer, which may be
+ * updated if @c c gets inserted at the beginning of the list.
+ * @param c The command to add to the list pointed to by @c head.
*/
static void command_add_child(struct command **head, struct command *c)
{
*head = c;
return;
}
- struct command *cc = *head;
- while (cc->next) cc = cc->next;
- cc->next = c;
+
+ while ((*head)->next && (strcmp(c->name, (*head)->name) > 0))
+ head = &(*head)->next;
+
+ if (strcmp(c->name, (*head)->name) > 0) {
+ c->next = (*head)->next;
+ (*head)->next = c;
+ } else {
+ c->next = *head;
+ *head = c;
+ }
}
-struct command* register_command(struct command_context *context,
- struct command *parent, char *name, command_handler_t handler,
- enum command_mode mode, char *help)
+static struct command **command_list_for_parent(
+ struct command_context *cmd_ctx, struct command *parent)
{
- if (!context || !name)
- return NULL;
+ return parent ? &parent->children : &cmd_ctx->commands;
+}
- struct command **head = parent ? &parent->children : &context->commands;
- struct command *c = command_find(*head, name);
- if (NULL != c)
- return c;
+static struct command *command_new(struct command_context *cmd_ctx,
+ struct command *parent, const struct command_registration *cr)
+{
+ assert(cr->name);
- c = malloc(sizeof(struct command));
+ struct command *c = malloc(sizeof(struct command));
+ memset(c, 0, sizeof(struct command));
- c->name = strdup(name);
+ c->name = strdup(cr->name);
+ if (cr->help)
+ c->help = strdup(cr->help);
+ if (cr->usage)
+ c->usage = strdup(cr->usage);
c->parent = parent;
- c->children = NULL;
- c->handler = handler;
- c->mode = mode;
- c->next = NULL;
+ c->handler = cr->handler;
+ c->jim_handler = cr->jim_handler;
+ c->jim_handler_data = cr->jim_handler_data;
+ c->mode = cr->mode;
- command_add_child(head, c);
+ command_add_child(command_list_for_parent(cmd_ctx, parent), c);
- command_helptext_add(command_name_list(c), help);
+ return c;
+}
+static void command_free(struct command *c)
+{
+ /// @todo if command has a handler, unregister its jim command!
- /* just a placeholder, no handler */
- if (c->handler == NULL)
- return c;
+ while (NULL != c->children)
+ {
+ struct command *tmp = c->children;
+ c->children = tmp->next;
+ command_free(tmp);
+ }
+
+ if (c->name)
+ free(c->name);
+ if (c->help)
+ free((void*)c->help);
+ if (c->usage)
+ free((void*)c->usage);
+ free(c);
+}
+
+static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
+
+static int register_command_handler(struct command *c)
+{
+ const char *ocd_name = alloc_printf("ocd_%s", c->name);
+ if (NULL == ocd_name)
+ return JIM_ERR;
- const char *full_name = command_name(c, '_');
+ LOG_DEBUG("registering '%s'...", ocd_name);
- const char *ocd_name = alloc_printf("ocd_%s", full_name);
- Jim_CreateCommand(interp, ocd_name, script_command, c, NULL);
+ Jim_CmdProc func = c->handler ? &script_command : &command_unknown;
+ int retval = Jim_CreateCommand(interp, ocd_name, func, c, NULL);
free((void *)ocd_name);
+ if (JIM_OK != retval)
+ return retval;
/* we now need to add an overrideable proc */
- const char *override_name = alloc_printf("proc %s {args} {"
- "if {[catch {eval ocd_%s $args}] == 0} "
- "{return \"\"} else {return -code error}}",
- full_name, full_name);
- Jim_Eval_Named(interp, override_name, __THIS__FILE__, __LINE__);
- free((void *)override_name);
+ const char *override_name = alloc_printf(
+ "proc %s {args} {eval ocd_bouncer %s $args}",
+ c->name, c->name);
+ if (NULL == override_name)
+ return JIM_ERR;
- free((void *)full_name);
+ retval = Jim_Eval_Named(interp, override_name, __FILE__, __LINE__);
+ free((void *)override_name);
- return c;
+ return retval;
}
-int unregister_all_commands(struct command_context *context)
+struct command* register_command(struct command_context *context,
+ struct command *parent, const struct command_registration *cr)
{
- struct command *c, *c2;
+ if (!context || !cr->name)
+ return NULL;
- if (context == NULL)
- return ERROR_OK;
+ const char *name = cr->name;
+ struct command **head = command_list_for_parent(context, parent);
+ struct command *c = command_find(*head, name);
+ if (NULL != c)
+ {
+ LOG_ERROR("command '%s' is already registered in '%s' context",
+ name, parent ? parent->name : "<global>");
+ return c;
+ }
+
+ c = command_new(context, parent, cr);
+ if (NULL == c)
+ return NULL;
+
+ int retval = ERROR_OK;
+ if (NULL != cr->jim_handler && NULL == parent)
+ {
+ retval = Jim_CreateCommand(interp, cr->name,
+ cr->jim_handler, cr->jim_handler_data, NULL);
+ }
+ else if (NULL != cr->handler || NULL != parent)
+ retval = register_command_handler(command_root(c));
- while (NULL != context->commands)
+ if (ERROR_OK != retval)
{
- c = context->commands;
+ unregister_command(context, parent, name);
+ c = NULL;
+ }
+ return c;
+}
- while (NULL != c->children)
+int register_commands(struct command_context *cmd_ctx, struct command *parent,
+ const struct command_registration *cmds)
+{
+ int retval = ERROR_OK;
+ unsigned i;
+ for (i = 0; cmds[i].name || cmds[i].chain; i++)
+ {
+ const struct command_registration *cr = cmds + i;
+
+ struct command *c = NULL;
+ if (NULL != cr->name)
+ {
+ c = register_command(cmd_ctx, parent, cr);
+ if (NULL == c)
+ {
+ retval = ERROR_FAIL;
+ break;
+ }
+ }
+ if (NULL != cr->chain)
{
- c2 = c->children;
- c->children = c->children->next;
- free(c2->name);
- c2->name = NULL;
- free(c2);
- c2 = NULL;
+ struct command *p = c ? : parent;
+ retval = register_commands(cmd_ctx, p, cr->chain);
+ if (ERROR_OK != retval)
+ break;
}
+ }
+ if (ERROR_OK != retval)
+ {
+ for (unsigned j = 0; j < i; j++)
+ unregister_command(cmd_ctx, parent, cmds[j].name);
+ }
+ return retval;
+}
- context->commands = context->commands->next;
+int unregister_all_commands(struct command_context *context,
+ struct command *parent)
+{
+ if (context == NULL)
+ return ERROR_OK;
- free(c->name);
- c->name = NULL;
- free(c);
- c = NULL;
+ struct command **head = command_list_for_parent(context, parent);
+ while (NULL != *head)
+ {
+ struct command *tmp = *head;
+ *head = tmp->next;
+ command_free(tmp);
}
return ERROR_OK;
}
-int unregister_command(struct command_context *context, char *name)
+int unregister_command(struct command_context *context,
+ struct command *parent, const char *name)
{
- struct command *c, *p = NULL, *c2;
-
if ((!context) || (!name))
return ERROR_INVALID_ARGUMENTS;
- /* find command */
- c = context->commands;
-
- while (NULL != c)
+ struct command *p = NULL;
+ struct command **head = command_list_for_parent(context, parent);
+ for (struct command *c = *head; NULL != c; p = c, c = c->next)
{
- if (strcmp(name, c->name) == 0)
- {
- /* unlink command */
- if (p)
- {
- p->next = c->next;
- }
- else
- {
- /* first element in command list */
- context->commands = c->next;
- }
+ if (strcmp(name, c->name) != 0)
+ continue;
- /* unregister children */
- while (NULL != c->children)
- {
- c2 = c->children;
- c->children = c->children->next;
- free(c2->name);
- c2->name = NULL;
- free(c2);
- c2 = NULL;
- }
-
- /* delete command */
- free(c->name);
- c->name = NULL;
- free(c);
- c = NULL;
- return ERROR_OK;
- }
+ if (p)
+ p->next = c->next;
+ else
+ *head = c->next;
- /* remember the last command for unlinking */
- p = c;
- c = c->next;
+ command_free(c);
+ return ERROR_OK;
}
return ERROR_OK;
}
+void command_set_handler_data(struct command *c, void *p)
+{
+ if (NULL != c->handler || NULL != c->jim_handler)
+ c->jim_handler_data = p;
+ for (struct command *cc = c->children; NULL != cc; cc = cc->next)
+ command_set_handler_data(cc, p);
+}
+
void command_output_text(struct command_context *context, const char *data)
{
if (context && context->output_handler && data) {
return __command_name(c, delim, 0);
}
+static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
+{
+ return c->mode == COMMAND_ANY || c->mode == cmd_ctx->mode;
+}
+
static int run_command(struct command_context *context,
struct command *c, const char *words[], unsigned num_words)
{
- if (!((context->mode == COMMAND_CONFIG) || (c->mode == COMMAND_ANY) || (c->mode == context->mode)))
+ if (!command_can_run(context, c))
{
/* Config commands can not run after the config stage */
- LOG_ERROR("Command '%s' only runs during configuration stage", c->name);
+ LOG_ERROR("The '%s' command must be used before 'init'.", c->name);
return ERROR_FAIL;
}
{
if (argc != 2)
return JIM_ERR;
- int retcode;
+
+ Jim_Obj *tclOutput = command_log_capture_start(interp);
+
const char *str = Jim_GetString(argv[1], NULL);
+ int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
- /* capture log output and return it */
- Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
- /* a garbage collect can happen, so we need a reference count to this object */
- Jim_IncrRefCount(tclOutput);
+ command_log_capture_finish(interp, tclOutput);
- log_add_callback(tcl_output, tclOutput);
+ return retcode;
+}
+
+static COMMAND_HELPER(command_help_find, struct command *head,
+ struct command **out)
+{
+ if (0 == CMD_ARGC)
+ return ERROR_INVALID_ARGUMENTS;
+ *out = command_find(head, CMD_ARGV[0]);
+ if (NULL == *out && strncmp(CMD_ARGV[0], "ocd_", 4) == 0)
+ *out = command_find(head, CMD_ARGV[0] + 4);
+ if (NULL == *out)
+ return ERROR_INVALID_ARGUMENTS;
+ if (--CMD_ARGC == 0)
+ return ERROR_OK;
+ CMD_ARGV++;
+ return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
+}
- retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
+static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
+ bool show_help);
- log_remove_callback(tcl_output, tclOutput);
+static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
+ bool show_help)
+{
+ for (struct command *c = head; NULL != c; c = c->next)
+ CALL_COMMAND_HANDLER(command_help_show, c, n, show_help);
+ return ERROR_OK;
+}
- /* We dump output into this local variable */
- Jim_SetResult(interp, tclOutput);
- Jim_DecrRefCount(interp, tclOutput);
+#define HELP_LINE_WIDTH(_n) (int)(76 - (2 * _n))
- return retcode;
+static void command_help_show_indent(unsigned n)
+{
+ for (unsigned i = 0; i < n; i++)
+ LOG_USER_N(" ");
+}
+static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
+{
+ const char *cp = str, *last = str;
+ while (*cp)
+ {
+ const char *next = last;
+ do {
+ cp = next;
+ do {
+ next++;
+ } while (*next != ' ' && *next != '\t' && *next != '\0');
+ } while ((next - last < HELP_LINE_WIDTH(n)) && *next != '\0');
+ if (next - last < HELP_LINE_WIDTH(n))
+ cp = next;
+ command_help_show_indent(n);
+ LOG_USER_N("%.*s", (int)(cp - last), last);
+ LOG_USER_N("\n");
+ last = cp + 1;
+ n = n2;
+ }
+}
+static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
+ bool show_help)
+{
+ char *cmd_name = command_name(c, ' ');
+ if (NULL == cmd_name)
+ return -ENOMEM;
+
+ command_help_show_indent(n);
+ LOG_USER_N("%s", cmd_name);
+ free(cmd_name);
+
+ if (c->usage) {
+ LOG_USER_N(" ");
+ command_help_show_wrap(c->usage, 0, n + 5);
+ }
+ else
+ LOG_USER_N("\n");
+
+ if (show_help)
+ {
+ const char *stage_msg;
+ switch (c->mode) {
+ case COMMAND_CONFIG: stage_msg = "CONFIG"; break;
+ case COMMAND_EXEC: stage_msg = "EXEC"; break;
+ case COMMAND_ANY: stage_msg = "CONFIG or EXEC"; break;
+ default: stage_msg = "***UNKNOWN***"; break;
+ }
+ char *msg = alloc_printf("%s%sValid Modes: %s",
+ c->help ? : "", c->help ? " " : "", stage_msg);
+ if (NULL != msg)
+ {
+ command_help_show_wrap(msg, n + 3, n + 3);
+ free(msg);
+ } else
+ return -ENOMEM;
+ }
+
+ if (++n >= 2)
+ return ERROR_OK;
+
+ return CALL_COMMAND_HANDLER(command_help_show_list,
+ c->children, n, show_help);
+}
+COMMAND_HANDLER(handle_help_command)
+{
+ bool full = strcmp(CMD_NAME, "help") == 0;
+
+ struct command *c = CMD_CTX->commands;
+
+ if (0 == CMD_ARGC)
+ return CALL_COMMAND_HANDLER(command_help_show_list, c, 0, full);
+
+ int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
+ if (ERROR_OK != retval)
+ return retval;
+
+ return CALL_COMMAND_HANDLER(command_help_show, c, 0, full);
+}
+
+static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
+ struct command *head, struct command **out, bool top_level)
+{
+ if (0 == argc)
+ return argc;
+ const char *cmd_name = Jim_GetString(argv[0], NULL);
+ struct command *c = command_find(head, cmd_name);
+ if (NULL == c && top_level && strncmp(cmd_name, "ocd_", 4) == 0)
+ c = command_find(head, cmd_name + 4);
+ if (NULL == c)
+ return argc;
+ *out = c;
+ return command_unknown_find(--argc, ++argv, (*out)->children, out, false);
+}
+
+static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+ const char *cmd_name = Jim_GetString(argv[0], NULL);
+ if (strcmp(cmd_name, "unknown") == 0)
+ {
+ if (argc == 1)
+ return JIM_OK;
+ argc--;
+ argv++;
+ }
+ script_debug(interp, cmd_name, argc, argv);
+
+ struct command_context *cmd_ctx = current_command_context();
+ struct command *c = cmd_ctx->commands;
+ int remaining = command_unknown_find(argc, argv, c, &c, true);
+ // if nothing could be consumed, then it's really an unknown command
+ if (remaining == argc)
+ {
+ const char *cmd = Jim_GetString(argv[0], NULL);
+ LOG_ERROR("Unknown command:\n %s", cmd);
+ return JIM_OK;
+ }
+
+ bool found = true;
+ Jim_Obj *const *start;
+ unsigned count;
+ if (c->handler || c->jim_handler)
+ {
+ // include the command name in the list
+ count = remaining + 1;
+ start = argv + (argc - remaining - 1);
+ }
+ else
+ {
+ c = command_find(cmd_ctx->commands, "help");
+ if (NULL == c)
+ {
+ LOG_ERROR("unknown command, but help is missing too");
+ return JIM_ERR;
+ }
+ count = argc - remaining;
+ start = argv;
+ found = false;
+ }
+ // pass the command through to the intended handler
+ if (c->jim_handler)
+ {
+ interp->cmdPrivData = c->jim_handler_data;
+ return (*c->jim_handler)(interp, count, start);
+ }
+
+ return script_command_run(interp, count, start, c, found);
+}
+
+static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+ struct command_context *cmd_ctx = current_command_context();
+ enum command_mode mode;
+ if (argc > 1)
+ {
+ struct command *c = cmd_ctx->commands;
+ int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
+ // if nothing could be consumed, then it's an unknown command
+ if (remaining == argc - 1)
+ {
+ Jim_SetResultString(interp, "unknown", -1);
+ return JIM_OK;
+ }
+ mode = c->mode;
+ }
+ else
+ mode = cmd_ctx->mode;
+
+ const char *mode_str;
+ switch (mode) {
+ case COMMAND_ANY: mode_str = "any"; break;
+ case COMMAND_CONFIG: mode_str = "config"; break;
+ case COMMAND_EXEC: mode_str = "exec"; break;
+ default: mode_str = "unknown"; break;
+ }
+ Jim_SetResultString(interp, mode_str, -1);
+ return JIM_OK;
+}
+
+static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+ if (1 == argc)
+ return JIM_ERR;
+
+ struct command_context *cmd_ctx = current_command_context();
+ struct command *c = cmd_ctx->commands;
+ int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
+ // if nothing could be consumed, then it's an unknown command
+ if (remaining == argc - 1)
+ {
+ Jim_SetResultString(interp, "unknown", -1);
+ return JIM_OK;
+ }
+
+ if (c->jim_handler)
+ Jim_SetResultString(interp, "native", -1);
+ else if (c->handler)
+ Jim_SetResultString(interp, "simple", -1);
+ else
+ Jim_SetResultString(interp, "group", -1);
+
+ return JIM_OK;
+}
+
+int help_add_command(struct command_context *cmd_ctx, struct command *parent,
+ const char *cmd_name, const char *help_text, const char *usage)
+{
+ struct command **head = command_list_for_parent(cmd_ctx, parent);
+ struct command *nc = command_find(*head, cmd_name);
+ if (NULL == nc)
+ {
+ // add a new command with help text
+ struct command_registration cr = {
+ .name = cmd_name,
+ .mode = COMMAND_ANY,
+ .help = help_text,
+ .usage = usage,
+ };
+ nc = register_command(cmd_ctx, parent, &cr);
+ if (NULL == nc)
+ {
+ LOG_ERROR("failed to add '%s' help text", cmd_name);
+ return ERROR_FAIL;
+ }
+ LOG_DEBUG("added '%s' help text", cmd_name);
+ return ERROR_OK;
+ }
+ if (help_text)
+ {
+ bool replaced = false;
+ if (nc->help)
+ {
+ free((void *)nc->help);
+ replaced = true;
+ }
+ nc->help = strdup(help_text);
+ if (replaced)
+ LOG_INFO("replaced existing '%s' help", cmd_name);
+ else
+ LOG_DEBUG("added '%s' help text", cmd_name);
+ }
+ if (usage)
+ {
+ bool replaced = false;
+ if (nc->usage)
+ {
+ free((void *)nc->usage);
+ replaced = true;
+ }
+ nc->usage = strdup(usage);
+ if (replaced)
+ LOG_INFO("replaced existing '%s' usage", cmd_name);
+ else
+ LOG_DEBUG("added '%s' usage text", cmd_name);
+ }
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_help_add_command)
+{
+ if (CMD_ARGC < 2)
+ {
+ LOG_ERROR("%s: insufficient arguments", CMD_NAME);
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ // save help text and remove it from argument list
+ const char *str = CMD_ARGV[--CMD_ARGC];
+ const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
+ const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
+ if (!help && !usage)
+ {
+ LOG_ERROR("command name '%s' is unknown", CMD_NAME);
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ // likewise for the leaf command name
+ const char *cmd_name = CMD_ARGV[--CMD_ARGC];
+
+ struct command *c = NULL;
+ if (CMD_ARGC > 0)
+ {
+ c = CMD_CTX->commands;
+ int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
+ if (ERROR_OK != retval)
+ return retval;
+ }
+ return help_add_command(CMD_CTX, c, cmd_name, help, usage);
}
/* sleep command sleeps for <n> miliseconds
return ERROR_OK;
}
+static const struct command_registration command_subcommand_handlers[] = {
+ {
+ .name = "mode",
+ .mode = COMMAND_ANY,
+ .jim_handler = &jim_command_mode,
+ .usage = "[<name> ...]",
+ .help = "Returns the command modes allowed by a command:"
+ "'any', 'config', or 'exec'. If no command is"
+ "specified, returns the current command mode.",
+ },
+ {
+ .name = "type",
+ .mode = COMMAND_ANY,
+ .jim_handler = &jim_command_type,
+ .usage = "<name> ...",
+ .help = "Returns the type of built-in command:"
+ "'native', 'simple', 'group', or 'unknown'",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration command_builtin_handlers[] = {
+ {
+ .name = "add_help_text",
+ .handler = &handle_help_add_command,
+ .mode = COMMAND_ANY,
+ .help = "add new command help text",
+ .usage = "<command> [...] <help_text>]",
+ },
+ {
+ .name = "add_usage_text",
+ .handler = &handle_help_add_command,
+ .mode = COMMAND_ANY,
+ .help = "add new command usage text",
+ .usage = "<command> [...] <usage_text>]",
+ },
+ {
+ .name = "sleep",
+ .handler = &handle_sleep_command,
+ .mode = COMMAND_ANY,
+ .help = "sleep for n milliseconds. "
+ "\"busy\" will busy wait",
+ .usage = "<n> [busy]",
+ },
+ {
+ .name = "help",
+ .handler = &handle_help_command,
+ .mode = COMMAND_ANY,
+ .help = "show full command help",
+ .usage = "[<command> ...]",
+ },
+ {
+ .name = "usage",
+ .handler = &handle_help_command,
+ .mode = COMMAND_ANY,
+ .help = "show basic command usage",
+ .usage = "[<command> ...]",
+ },
+ {
+ .name = "command",
+ .mode= COMMAND_ANY,
+ .help = "core command group (introspection)",
+ .chain = command_subcommand_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
struct command_context* command_init(const char *startup_tcl)
{
struct command_context* context = malloc(sizeof(struct command_context));
interp->cb_fflush = openocd_jim_fflush;
interp->cb_fgets = openocd_jim_fgets;
+ register_commands(context, NULL, command_builtin_handlers);
+
#if !BUILD_ECOSBOARD
Jim_EventLoopOnLoad(interp);
#endif
+ Jim_SetAssocData(interp, "context", NULL, context);
if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl",1) == JIM_ERR)
{
LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
Jim_PrintErrorMessage(interp);
exit(-1);
}
-
- register_command(context, NULL, "sleep",
- handle_sleep_command, COMMAND_ANY,
- "<n> [busy] - sleep for n milliseconds. "
- "\"busy\" means busy wait");
+ Jim_DeleteAssocData(interp, "context");
return context;
}
#endif
}
-void register_jim(struct command_context *cmd_ctx, const char *name,
- Jim_CmdProc cmd, const char *help)
-{
- Jim_CreateCommand(interp, name, cmd, NULL, NULL);
-
- Jim_Obj *cmd_list = Jim_NewListObj(interp, NULL, 0);
- Jim_ListAppendElement(interp, cmd_list,
- Jim_NewStringObj(interp, name, -1));
-
- command_helptext_add(cmd_list, help);
-}
-
#define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
int parse##name(const char *str, type *ul) \
{ \
}
return ERROR_OK;
}
-
-
projects / fw / openocd / blobdiff