nodemcu-firmware/components/embedded_lfs/embedded_lfs.lf

[sections:rodata_embedded]
entries:
    .rodata.embedded

[scheme:embedded_lfs]
entries:
    rodata_embedded -> flash_text

[mapping:embedded_lfs]
archive: libembedded_lfs.a
entries:
    * (default);
        rodata -> flash_rodata KEEP() ALIGN(4096)