def generate_os_fixes(core=False):
    """
    Generate name regexes for OS signed files.

    :param core: If we're using a core OS image. Default is false.
    :type core: bool
    """
    if core:
        fix8960 = "*qc8960.*_sfi.BB*.signed"
        fixomap_new = "*winchester.*_sfi.BB*.signed"
        fixomap_old = "*os.factory_sfi.BB*.signed"
        fix8930 = "*qc8x30.BB*.signed"
        fix8974_new = "*qc8974.BB*.signed"
        fix8974_old = "*qc8974.*_sfi.BB*.signed"
    else:
        fix8960 = "*qc8960.*_sfi.desktop.BB*.signed"
        fixomap_new = "*winchester.*_sfi.desktop.BB*.signed"
        fixomap_old = "*os.factory_sfi.desktop.BB*.signed"
        fix8930 = "*qc8x30.desktop.BB*.signed"
        fix8974_new = "*qc8974.desktop.BB*.signed"
        fix8974_old = "*qc8974.*_sfi.desktop.BB*.signed"
    return fix8960, fixomap_new, fixomap_old, fix8930, fix8974_new, fix8974_old