# Embedded into OpenOCD executable
#
-# Help text list. A list of command + help text pairs.
-#
-# Commands can be more than one word and they are stored
-# as "flash banks" "help text x x x"
-
-proc add_help_text {cmd cmd_help} {
- global ocd_helptext
- lappend ocd_helptext [list $cmd $cmd_help]
-}
-
-proc get_help_text {} {
- global ocd_helptext
- return $ocd_helptext
-}
-
# We need to explicitly redirect this to the OpenOCD command
# as Tcl defines the exit proc
ocd_throw exit
}
-#Print help text for a command. Word wrap
-#help text that is too wide inside column.
-proc help {args} {
- global ocd_helptext
- set cmd $args
- foreach a [lsort $ocd_helptext] {
- if {[string length $cmd] == 0 || \
- [string first $cmd $a] != -1 || \
- [string first $cmd [lindex $a 1]] != -1} \
- {
- set w 50
- set cmdname [lindex $a 0]
- set h [lindex $a 1]
- set n 0
- while 1 {
- if {$n > [string length $h]} {break}
-
- set next_a [expr $n + $w]
- if {[string length $h] > $n + $w} \
- {
- set xxxx [string range $h $n [expr $n + $w]]
- for {set lastpos [expr [string length $xxxx] - 1]} \
- {$lastpos >= 0 && [string compare \
- [string range $xxxx $lastpos $lastpos] " "] != 0} \
- {set lastpos [expr $lastpos - 1]} \
- {
- }
- #set next_a -1
- if {$lastpos != -1} {
- set next_a [expr $lastpos + $n + 1]
- }
- }
-
- puts [format "%-25s %s" $cmdname \
- [string range $h $n [expr $next_a-1]] ]
- set cmdname ""
- set n [expr $next_a]
- }
- }
- }
-}
-
-add_help_text help "Tcl implementation of help command"
-
-
-# If a fn is unknown to Tcl, we try to execute it as an OpenOCD command
-#
-# We also support two level commands. "flash banks" is translated to
-# flash_banks
-proc unknown {args} {
- # do the name mangling from "flash banks" to "flash_banks"
- if {[llength $args]>=2} {
- set cmd_name "[lindex $args 0]_[lindex $args 1]"
- if {[catch {info body $cmd_name}]==0} {
- # the command exists, try it...
- return [eval "$cmd_name [lrange $args 2 end]"]
+# All commands are registered with an 'ocd_' prefix, while the "real"
+# command is a wrapper that calls this function. Its primary purpose is
+# to discard 'handler' command output,
+proc ocd_bouncer {name args} {
+ set cmd [format "ocd_%s" $name]
+ set type [eval ocd_command type $cmd $args]
+ set errcode error
+ if {$type == "native"} {
+ return [eval $cmd $args]
+ } else {if {$type == "simple"} {
+ set errcode [catch {eval $cmd $args}]
+ if {$errcode == 0} {
+ return ""
+ } else {
+ # 'classic' commands output error message as part of progress output
+ set errmsg ""
}
- }
- # This really is an unknown command.
- return -code error "Unknown command: $args"
-}
-
-proc new_target_name { } {
- return [target number [expr [target count] - 1 ]]
+ } else {if {$type == "group"} {
+ catch {eval ocd_usage $name $args}
+ set errmsg [format "%s: command requires more arguments" \
+ [concat $name " " $args]]
+ } else {
+ set errmsg [format "invalid subcommand \"%s\"" $args]
+ }}}
+ return -code $errcode $errmsg
}
# Try flipping / and \ to find file if the filename does not
# make sure error message matches original input string
return -code error "Can't find $filename"
}
-add_help_text find "<file> - print full path to file according to OpenOCD search rules"
+add_usage_text find "<file>"
+add_help_text find "print full path to file according to OpenOCD search rules"
-# Run script
+# Find and run a script
proc script {filename} {
- source [find $filename]
+ uplevel #0 [list source [find $filename]]
}
-
-add_help_text script "<filename> - filename of OpenOCD script (tcl) to run"
+add_help_text script "filename of OpenOCD script (tcl) to run"
+add_usage_text script "<file>"
#########
-# catch any exceptions, capture output and return output
-proc capture_catch {a} {
- catch {
- capture {uplevel $a}
- } result
- return $result
-}