[Dwarf-Discuss] DWARF for DSP like processors with multiple memories

Michael Eager eager at eagercon.com
Tue Nov 25 10:58:08 PST 2008


Daniel Jacobowitz wrote:

>> Some implementations (like GCC-powerpc) only
>> provide the minimum needed to unwind, leaving the ABI (or guesswork)
>> to know where specific registers have been saved on the stack.
> 
> I don't believe that's correct.  GCC does have a known omission (it's
> not accurate in epilogue sequences), and a known quirk (call-clobbered
> registers are not explicitly marked), but it should describe every saved
> register.

The caller-saved regs don't appear in the CFI, as I recall.

-- 
Michael Eager	 eager at eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077



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