[Buildroot] [PATCH 05/16] uclibc: disable DOPIC on ARM noMMU

[Thomas Petazzoni]

Hello,

On Thu, 17 Mar 2016 13:32:46 +0300, Max Filippov wrote:

> > I have no idea if Xtensa noMMU has ever been tested, whether it uses
> > FLAT or FDPIC, etc. Could we leave this up to people interested in
> > Xtensa ? Or alternatively, remove noMMU Xtensa support altogether.
> >
> > I'm Cc'ing Max to see if he knows what the status of noMMU Xtensa is.
> 
> I tested noMMU xtensa lightly. It uses FLAT
> ( https://github.com/uclinux-dev/elf2flt/commit/052ec62c087a3e9dfb62d231ee4aad253bce2f7e
> ),
> requires a patch for gcc
> ( https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=e3c15dbe1c4cd63d906eb67c1c607cc4fab6b329
> ),
> and currently it defaults to generating PIC code.
> It appears to work with both DOPIC enabled and disabled.

Does it work within Buildroot? I think we should either have support
for Xtensa noMMU and make it work, or we should remove it.

From what you say, if it doesn't work already, it seems like it should
be a huge work to get it working, right?

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com