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Re: arm-elf float-abi defaults...
> The compiler should generate a pseudo-op that is processed by the
> assembler. If the right pseudo-op doesn't already exist, it needs
> to be added to both the assembler and compiler.
The assembler has pseudo-s for ".fpu" which says what kind of FPU it
has, but the generic hard/soft choice is only via command line option.
> I thought this stuff already existed in arm-eabi toolchains. If it
> doesn't exist in arm-elf, then you should be able to use it there too.
The EABI toolchains use eabi-specific pseudos to set the .fpu.
> But, of course, arm-elf is really a dead ABI at this point...
hmmm... if it's dead enough, it becomes a moot point, doesn't it?