Am 19.02.2011 14:51, schrieb Albert ARIBAUD: > Le 19/02/2011 14:25, Måns Rullgård a écrit : > >>> So whats the reasoning to use -msoft-float as it is currently done? To >>> confuse people? ;) >> >> I guess it's there to make sure no floating-point instructions make it >> into u-boot, even though floats are not used in the code. Perhaps >> someone was paranoid. > > I think also that there is no choice but to have a float option for ARM > C, either 'soft' or 'hard' (or 'softfp', actually, which is 'hard' with > the 'soft' calling conventions), because the C compiler does not allow > 'no floats', and anyway the C language *requires* to have some sort of > float support.
As it is on every platform. > Actually if you don't specify any float option, the C toolchain will > choose one, which is just the same in the end: *some* float option is > chosen. Every compiler has dozens of options which are set to a default value. > And since some option must be chosen, I prefer that U-Boot make the > explicit decision, and choose soft float for the reasons I already exposed. I don't see any reason to explicitly set an option for something which isn't used, but I know of many reasons to avoid such. ;) Regards, Alexander _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
