Changeset b0afac0 in rtems_waf

Add root_filesystem support to create a root file system.

To use add to your wscript file:

rtems.root_filesystem(bld, 'rootfs',

etc/rc.conf?,
'rootfs.tar', 'rootfs-tar.o')

to create a rootfs-tar.o which you add to your executable's list of
sources.

In your main or Init function add:

#include <rtems/untar.h>
extern int _binary_rootfs_tar_start;
extern int _binary_rootfs_tar_size;
static void expand_rootfs_tarfile(void)
{

rtems_status_code sc;
rtems_printer printer;
rtems_print_printer_printf(&printer);
sc = Untar_FromMemory_Print((void *)(&_binary_rootfs_tar_start),

(size_t)&_binary_rootfs_tar_size,
&printer);

if (sc != RTEMS_SUCCESSFUL)

fprintf(stderr, "error: untar failed: %s\n", rtems_status_text(sc));

}

Note, some arch's may not need the '_' at the start of the tar symbols.