motors/macros.bzl

def hex_from_elf(name, restricted_to=None):
  native.genrule(
    name = name,
    srcs = [ '%s.elf' % name ],
    outs = [ '%s.hex' % name ],
    cmd = '$(OBJCOPY) -O ihex $< $@',
    executable = True,
    output_to_bindir = True,
    restricted_to = restricted_to,
  )