On Fri, Oct 12, 2007 at 07:19:38PM +0200, Adrian Bunk wrote:
> I have an objection against this approach:
>
> Our __*init*/__*exit* annotations are already a constant source of bugs,
> and adding more pifalls (e.g. forgotten removal of _i()/_e() when a
> function is no longer __*init*/__*exit*) doesn't sound like a good plan.
>
> Shouldn't it be possible to automatically determine where to put the
> strings? I don't know enough gcc/ld voodoo for being able to tell
> whether it is currently possible, and if yes how, but doing it
> automatically sounds like the only solution that wouldn't result in an
> unmaintainable mess.
gcc tends to place data such as strings or jump tables generated from
switches not into a place were it would be easily discardable. The
latter is the reason that on MIPS we can't discard __exit functions
at all - a switch table in .rodata might be referencing discarded code
in .exit.text which makes ld fail. When I discussed this with some gcc
people a while ago nobody really had a good suggestion to solve this.
Ralf
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