Messages in this thread | | | Date | Tue, 28 Sep 2010 15:52:37 +0000 (UTC) | From | "Joseph S. Myers" <> | Subject | Re: asm-generic/unistd.h and glibc use of NR_ipc |
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On Tue, 28 Sep 2010, Chris Metcalf wrote:
> (Adding libc-ports to the cc list.) > > On 9/28/2010 4:40 AM, Arnd Bergmann wrote: > > Chris Metcalf is using the generic unistd.h file on the tile architecture > > and has a glibc port that should be easily portable to all future > > architectures. There are a few of them getting ready to be merged > > now (c6x, lm32, nios2, and some people have contacted me privately > > for architectures I cannot name).
(Removing libc-alpha as my comments aren't relevant to that list.)
Two of the three seem rather surprising to me as regards glibc ports being ready to merge - maybe kernel ports are ready, however, it isn't clear to me what (kernel or glibc) the original comment was referring to.
C6X has no MMU so a glibc port isn't a possibility. There are indeed uClibc and GCC ports we will be contributing in due course - but the linker support for shared objects is still in development (I contributed the static linking binutils support upstream earlier this year) and is required for building anything for uClinux userspace for this platform.
As for Nios II, we have a fully functional glibc port at CodeSourcery. It is I believe all our own work so there are no legal obstacles to our contributing it to the FSF - but upstream contribution would not really be useful without the GCC and binutils ports, and those ports (to which we added PIC and TLS support among other things) are based on code from Altera which is not covered by an FSF copyright assignment, so while the code is available we have no current plans for Nios II upstream contribution.
http://www.codesourcery.com/sgpp/portal/datasheet?target_arch=Nios+II&target_os=GNU%2FLinux
-- Joseph S. Myers joseph@codesourcery.com
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