# find_sid -- find a usable SID simulator.
# This proc is local to this file and is used to locate a SID to use.
# Search the build tree, then $PATH.
#
# Written by Ben Elliston (bje@redhat.com).

proc find_sid { target_alias } {
    global env
    global tool_root_dir

    set try [lookfor_file ${tool_root_dir} sid/bsp/${target_alias}-sid]
    if { $try != "" } {
	set sid_build [lookfor_file ${tool_root_dir} sid/main/dynamic/sid]
	if { $sid_build != "" } { set env(SID) $sid_build }
	return $try
    }

    # In this case, the bsp script must be available on the PATH.
    # Just hope for the best!
    return ${target_alias}-sid
}

# find_sid_conf -- find a usable pre-generated SID config file.

proc find_sid_conf { config } {
    global env
    global srcdir

    set try [lookfor_file ${srcdir} sid/bsp/pregen/${config}.conf]
    if { $try == "" } then { return ${config}.conf } else { return $try }
}

# find_rawsid -- find a usable SID simulator.
# This proc is local to this file and is used to locate a SID to use.
# Search the build tree, then $PATH.

proc find_rawsid { } {
    global env
    global tool_root_dir
    global srcdir

    set try [lookfor_file ${tool_root_dir} sid/main/dynamic/sid]
    if { $try == "" } {
	set try "sid"
    } else {
	# testing build tree
	set env(SID_LIBRARY_PATH) [join [glob "${tool_root_dir}/sid/component/*" "$srcdir/sid/component/*"] ":"]
	# srcdir=/..../sid/component/testsuite
	set tcl_library "$srcdir/tcl/library"
        global host_os
	switch -glob $host_os {
	  {cygwin*} { set tcl_library [exec cygpath -w $tcl_library] }
        }
	set env(TCL_LIBRARY) $tcl_library
    }

    return $try
}