/* nice short description of source file */
#define __THIS__FILE__ "command.c"
-static int run_command(struct command_context *context,
- struct command *c, const char *words[], unsigned num_words);
-
struct log_capture_state {
Jim_Interp *interp;
Jim_Obj *output;
free(state);
}
+/*
+ * FIXME: workaround for memory leak in jimtcl 0.80
+ * Jim API Jim_CreateCommand() converts the command name in a Jim object and
+ * does not free the object. Fixed for jimtcl 0.81 by e4416cf86f0b
+ * Use the internal jimtcl API Jim_CreateCommandObj, not exported by jim.h,
+ * and override the bugged API through preprocessor's macro.
+ * This workaround works only when jimtcl is compiled as OpenOCD submodule.
+ * If jimtcl is linked-in from a precompiled library, either static or dynamic,
+ * the symbol Jim_CreateCommandObj is not exported and the build will use the
+ * bugged API.
+ * To be removed when OpenOCD will switch to jimtcl 0.81
+ */
+#if JIM_VERSION == 80
+static int workaround_createcommand(Jim_Interp *interp, const char *cmdName,
+ Jim_CmdProc *cmdProc, void *privData, Jim_DelCmdProc *delProc);
+int Jim_CreateCommandObj(Jim_Interp *interp, Jim_Obj *cmdNameObj,
+ Jim_CmdProc *cmdProc, void *privData, Jim_DelCmdProc *delProc)
+__attribute__((weak, alias("workaround_createcommand")));
+static int workaround_createcommand(Jim_Interp *interp, const char *cmdName,
+ Jim_CmdProc *cmdProc, void *privData, Jim_DelCmdProc *delProc)
+{
+ if ((void *)Jim_CreateCommandObj == (void *)workaround_createcommand)
+ return Jim_CreateCommand(interp, cmdName, cmdProc, privData, delProc);
+
+ Jim_Obj *cmd_name = Jim_NewStringObj(interp, cmdName, -1);
+ Jim_IncrRefCount(cmd_name);
+ int retval = Jim_CreateCommandObj(interp, cmd_name, cmdProc, privData, delProc);
+ Jim_DecrRefCount(interp, cmd_name);
+ return retval;
+}
+#define Jim_CreateCommand workaround_createcommand
+#endif /* JIM_VERSION == 80 */
+/* FIXME: end of workaround for memory leak in jimtcl 0.80 */
+
static int command_retval_set(Jim_Interp *interp, int retval)
{
int *return_retval = Jim_GetAssocData(interp, "retval");
return cmd_ctx;
}
-static int script_command_run(Jim_Interp *interp,
- int argc, Jim_Obj * const *argv, struct command *c)
-{
- target_call_timer_callbacks_now();
- LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
-
- unsigned nwords;
- char **words = script_command_args_alloc(argc, argv, &nwords);
- if (NULL == words)
- return JIM_ERR;
-
- struct command_context *cmd_ctx = current_command_context(interp);
- int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
-
- script_command_args_free(words, nwords);
- return command_retval_set(interp, retval);
-}
-
-static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
-{
- /* the private data is stashed in the interp structure */
-
- struct command *c = interp->cmdPrivData;
- assert(c);
- script_debug(interp, argc, argv);
- return script_command_run(interp, argc, argv, c);
-}
-
static struct command *command_root(struct command *c)
{
while (NULL != c->parent)
return NULL;
}
-struct command *command_find_in_context(struct command_context *cmd_ctx,
- const char *name)
-{
- return command_find(cmd_ctx->commands, name);
-}
-
/**
* Add the command into the linked list, sorted by name.
* @param head Address to head of command list pointer, which may be
{
Jim_Interp *interp = cmd_ctx->interp;
+#if 0
LOG_DEBUG("registering '%s'...", c->name);
+#endif
- Jim_CmdProc *func = c->handler ? &script_command : &command_unknown;
- int retval = Jim_CreateCommand(interp, c->name, func, c, NULL);
-
- return retval;
+ return Jim_CreateCommand(interp, c->name, command_unknown, c, NULL);
}
static struct command *register_command(struct command_context *context,
if (NULL == c)
return NULL;
- int retval = JIM_OK;
- if (NULL != cr->jim_handler && NULL == parent) {
- retval = Jim_CreateCommand(context->interp, cr->name,
- cr->jim_handler, NULL, NULL);
- } else if (NULL != cr->handler || NULL != parent)
- retval = register_command_handler(context, command_root(c));
-
- if (retval != JIM_OK) {
- unregister_command(context, parent, name);
- c = NULL;
+ if (cr->jim_handler || cr->handler) {
+ int retval = register_command_handler(context, command_root(c));
+ if (retval != JIM_OK) {
+ unregister_command(context, parent, name);
+ return NULL;
+ }
}
return c;
}
-int register_commands(struct command_context *cmd_ctx, struct command *parent,
- const struct command_registration *cmds)
+static int ___register_commands(struct command_context *cmd_ctx, struct command *parent,
+ const struct command_registration *cmds, void *data,
+ struct target *override_target)
{
int retval = ERROR_OK;
unsigned i;
retval = ERROR_FAIL;
break;
}
+ c->jim_handler_data = data;
+ c->jim_override_target = override_target;
}
if (NULL != cr->chain) {
struct command *p = c ? : parent;
- retval = register_commands(cmd_ctx, p, cr->chain);
+ retval = ___register_commands(cmd_ctx, p, cr->chain, data, override_target);
if (ERROR_OK != retval)
break;
}
return retval;
}
+int __register_commands(struct command_context *cmd_ctx, const char *cmd_prefix,
+ const struct command_registration *cmds, void *data,
+ struct target *override_target)
+{
+ struct command *parent = NULL;
+
+ if (cmd_prefix)
+ parent = command_find(cmd_ctx->commands, cmd_prefix);
+
+ return ___register_commands(cmd_ctx, parent, cmds, data, override_target);
+}
+
int unregister_all_commands(struct command_context *context,
struct command *parent)
{
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)
}
static int run_command(struct command_context *context,
- struct command *c, const char *words[], unsigned num_words)
+ struct command *c, const char **words, unsigned num_words)
{
- if (!command_can_run(context, c))
- return ERROR_FAIL;
-
struct command_invocation cmd = {
.ctx = context,
.current = c,
.argc = num_words - 1,
.argv = words + 1,
};
- /* Black magic of overridden current target:
- * If the command we are going to handle has a target prefix,
- * override the current target temporarily for the time
- * of processing the command.
- * current_target_override is used also for event handlers
- * therefore we prevent touching it if command has no prefix.
- * Previous override is saved and restored back to ensure
- * correct work when run_command() is re-entered. */
- struct target *saved_target_override = context->current_target_override;
- if (c->jim_handler_data)
- context->current_target_override = c->jim_handler_data;
cmd.output = Jim_NewEmptyStringObj(context->interp);
Jim_IncrRefCount(cmd.output);
int retval = c->handler(&cmd);
-
- if (c->jim_handler_data)
- context->current_target_override = saved_target_override;
-
if (retval == ERROR_COMMAND_SYNTAX_ERROR) {
/* Print help for command */
char *full_name = command_name(c, ' ');
bool full = strcmp(CMD_NAME, "help") == 0;
int retval;
struct command *c = CMD_CTX->commands;
- char *cmd_match = NULL;
-
- if (CMD_ARGC == 0)
- cmd_match = "";
- else if (CMD_ARGC >= 1) {
- unsigned i;
-
- for (i = 0; i < CMD_ARGC; ++i) {
- if (NULL != cmd_match) {
- char *prev = cmd_match;
-
- cmd_match = alloc_printf("%s %s", cmd_match, CMD_ARGV[i]);
- free(prev);
- if (NULL == cmd_match) {
- LOG_ERROR("unable to build search string");
- return -ENOMEM;
- }
- } else {
- cmd_match = alloc_printf("%s", CMD_ARGV[i]);
- if (NULL == cmd_match) {
- LOG_ERROR("unable to build search string");
- return -ENOMEM;
- }
- }
+ char *cmd_match;
+
+ if (CMD_ARGC <= 0)
+ cmd_match = strdup("");
+
+ else {
+ cmd_match = strdup(CMD_ARGV[0]);
+
+ for (unsigned int i = 1; i < CMD_ARGC && cmd_match; ++i) {
+ char *prev = cmd_match;
+ cmd_match = alloc_printf("%s %s", prev, CMD_ARGV[i]);
+ free(prev);
}
- } else
- return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ if (cmd_match == NULL) {
+ LOG_ERROR("unable to build search string");
+ return -ENOMEM;
+ }
retval = CALL_COMMAND_HANDLER(command_help_show_list,
c, 0, full, cmd_match);
- if (CMD_ARGC >= 1)
- free(cmd_match);
+ free(cmd_match);
return retval;
}
return retval;
}
+static int exec_command(Jim_Interp *interp, struct command_context *cmd_ctx,
+ struct command *c, int argc, Jim_Obj *const *argv)
+{
+ if (c->jim_handler)
+ return c->jim_handler(interp, argc, argv);
+
+ /* use c->handler */
+ unsigned int nwords;
+ char **words = script_command_args_alloc(argc, argv, &nwords);
+ if (!words)
+ return JIM_ERR;
+
+ int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
+ script_command_args_free(words, nwords);
+ return command_retval_set(interp, retval);
+}
+
static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
script_debug(interp, argc, argv);
run_usage(interp, count, argc, start);
return JIM_ERR;
}
- /* pass the command through to the intended handler */
- if (c->jim_handler) {
- if (!command_can_run(cmd_ctx, c))
- return JIM_ERR;
- interp->cmdPrivData = c->jim_handler_data;
- return (*c->jim_handler)(interp, count, start);
- }
+ if (!command_can_run(cmd_ctx, c))
+ return JIM_ERR;
+
+ target_call_timer_callbacks_now();
+
+ /*
+ * Black magic of overridden current target:
+ * If the command we are going to handle has a target prefix,
+ * override the current target temporarily for the time
+ * of processing the command.
+ * current_target_override is used also for event handlers
+ * therefore we prevent touching it if command has no prefix.
+ * Previous override is saved and restored back to ensure
+ * correct work when command_unknown() is re-entered.
+ */
+ struct target *saved_target_override = cmd_ctx->current_target_override;
+ if (c->jim_override_target)
+ cmd_ctx->current_target_override = c->jim_override_target;
+
+ int retval = exec_command(interp, cmd_ctx, c, count, start);
- return script_command_run(interp, count, start, c);
+ if (c->jim_override_target)
+ cmd_ctx->current_target_override = saved_target_override;
+
+ return retval;
}
static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
Code Review / openocd.git / blobdiff