On 2014-04-22, DJ Delorie <d...@redhat.com> wrote:
>
>> I was surprised to see DJ's comment that there actually was no
>> standard system interface; the "standard interface" I was referring to
>> is the one documented at http://neptune.billgatliff.com/newlib.html
>
> "The key to a successfully ported newlib is providing stubs that
> bridge the gap between the functionality newlib needs, and what your
> target system can provide."
>
> This bridge is what I was referring to. Newlib calls read() but does
> not provide an implementation of it. Libgloss provides various
> target-specific implementations of read(), the one I wrote for msp430
> uses CIO to communicate with the simulator/debugger.
Why is newlib calling read(), and from what is it expecting to read?
>> I was expecting for MSP430 to also simply implement the functions
>> stubbed in newlib's libnosys, but at first glance it looks like the
>> CIO one uses different names, and maybe doesn't support all the same
>> functions.
>
> Hmmm... it should be all the same names. I only changed the existing
> libgloss hooks. But, I don't always do all the hooks, usually only
> write() and exit() are needed for our testing.
Again, why should newlib be calling write() and what is it expecting
to write _to_?
What does it expect exit() to do?
--
Grant Edwards grant.b.edwards Yow! Did you move a lot of
at KOREAN STEAK KNIVES this
gmail.com trip, Dingy?
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