[SLOF] [PATCH] Use TYPE for the standard output instead of io_putchar()

Alexey Kardashevskiy aik at ozlabs.ru
Wed Jun 7 14:03:50 AEST 2017

On 07/06/17 00:48, Thomas Huth wrote:
> On 06.06.2017 08:28, Alexey Kardashevskiy wrote:
>> On 01/06/17 22:38, Thomas Huth wrote:
>>> All stdout text from the C code of the paflof binary (e.g. all output
>>> from printf() and friends) is currently only written via io_putchar()
>>> to the hvterm console. If the user decided to use a VGA display instead,
>>> the text is currently not shown there. This is especially affecting the
>>> output of the TFTP boot functions which are using printf() to provide
>>> valuable information like IP addresses and progress indication to the
>>> user. Let's fix this nuisance by routing the stdout text through the
>> Why not stderr as well?
> Normal output for the user should not go through stderr, so we do not
> urgently need to print this to the VGA console. And there are some few
> spots in paflof() where you can not use printf() if it is routed through
> TYPE (between init_engine=1 and the first initialization of TYPE), so we
> should keep a way to print debugging information without TYPE, too.
> That's why it is better to keep stderr mapped to io_putchar() right now.

Thanks for the explanation and the patch, applied.

>  Thomas


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