objdump disassembly lacking RAM symbol names

(First off, this is a binutils question, not really gcc itself; hoping
this is still the appropriate mailing list - if not let me know where
it should go instead).

I find that `objdump -d` doesn't give me RAM symbol names when
disassembling `ld` or `st` instructions. For example, in a program
containing

  static uint8_t long_buttons;

My nm -d output contains:

  $ avr-nm .build/ppqbase.elf | grep long_b
  008002ec b long_buttons

So it lives at address 0x2EC in RAM, but yet

  $ avr-objdump -d .build/ppqbase.elf | grep long_b

  $ avr-objdump -d .build/ppqbase.elf | grep 2EC
     c28:       80 91 ec 02     lds     r24, 0x02EC
     c38:       80 91 ec 02     lds     r24, 0x02EC
     d00:       d0 93 ec 02     sts     0x02EC, r29

I had been hoping the output to decode these addresses into symbolic
variable names.

Is there something special I need to do to enable this?

-- 
Paul "LeoNerd" Evans

[email protected]
http://www.leonerd.org.uk/  |  https://metacpan.org/author/PEVANS

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