[Buildroot] Status of external toolchain support

Yann E. MORIN yann.morin.1998 at anciens.enib.fr
Wed May 12 21:47:39 UTC 2010

Will, All,

On Wednesday 12 May 2010 23:36:59 Will Wagner wrote:
> > So yes, we also have to select threading model in buildroot, and it has to
> > match the external toolchain capabilities.

> I understand that options that affect packages have to be set the same. 
> I can also see that you need to know if the toolchain supports threads 
> or not, however once you have an external toolchain surely the packages 
> you build with it do not care what version of threading is used.

The only two (non-toolchain) packages, gdb and dmalloc, that depends on
threads, refer to !BR2_PTHREADS_NONE.

> If you need to tell buildroot the type of threading used (linuxthread 
> old/new or nptl) then currently buildroot does not check that they match 
> up, as I have an nptl toolchain but am unable to select that in 
> buildroot so it is set to linuxthreads new, but I got no error.

Oh, I see what you mean:
- the prompt for the threading model is wrong when dealing with external
  toolchains: we only need to know if threads are supported or not
- a check is missing to check coherency btw external toolchain threading
  capabilties, and buildroot configuration.

Yann E. MORIN.

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