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Re: [ARM-FDPIC 00/12] FDPIC ABI for ARM
On 22/03/2018 18:08, Joseph Myers wrote:
On Thu, 22 Mar 2018, Christophe Lyon wrote:
On ARM, the FDPIC register is r9 [3], and the intended target name is
arm-linux-uclibceabi, although arm-linux-gnueabi works too. Note that
arm-*-linux-uclibceabi already means normal non-FDPIC Linux with uClibc
(that is, with uClibc by default; -mglibc and -muclibc can be used to
select a multilib with different libc from the default one in a toolchain
built with such multilibs).
Thanks for the clarification.
arm-uclinux exists, but uses another ABI and the BFLAT file format; it
does not support code sharing.
But -uclinux* targets are the appropriate ones for MMU-less
configurations. It's possible you need a new variant such as
arm-*-uclinuxfdpiceabi.
I did wonder about the right option, and looked at other targets,
but couldn't figure out the right choice.
Something like arm-*-uclinuxfdpiceabi is probably the right choice
as you suggest.
I'll check that and update the patches accordingly. It should be
only a cosmetic, mechanical change, though quite important.
I think it does not prevent from getting feedback on the rest of the series.
Thanks for your prompt feedback!
Christophe