Messages in this thread | | | Subject | Re: [PATCH] ubi: kill homegrown endian macros | From | David Woodhouse <> | Date | Sat, 19 May 2007 10:07:42 +0800 |
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On Sat, 2007-05-19 at 00:00 +0200, Segher Boessenkool wrote: > It's not the compiler who decides -- struct layout is > dictated by the ABI you're compiling for.
This is true in the case of externally-visible stuff. I think the compiler is permitted to violate the ABI for purely unit-internal things if it makes sense though, isn't it?
Besides, in the case of the Linux kernel the ABI in question could be one of many. It could even be a new one which was added a couple of weeks ago, and which I had no _chance_ of considering.
The rule stands -- empirical testing of what the compiler will do isn't usually the right answer.
-- dwmw2
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