Messages in this thread | | | From | Måns Rullgård <> | Subject | Re: [PATCH v2] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions | Date | Tue, 12 Nov 2013 14:40:01 +0000 |
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Nicolas Pitre <nicolas.pitre@linaro.org> writes:
> On Tue, 12 Nov 2013, Ben Dooks wrote: > >> Given these are single instructoins for ARM, is it possible we could >> make a table of all the callers and fix them up when we initialise >> as we do for the SMP/UP case and for page-offset? > > Not really. Calls to those functions are generated by the compiler > implicitly when a divisor operand is used and therefore we cannot > annotate those calls. We'd have to use special accessors everywhere to > replace the standard division operand (like we do for 64 by 32 bit > divisions) but I doubt that people would accept that.
It might be possible to extract this information from relocation tables.
-- Måns Rullgård mans@mansr.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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