Re: [microblaze-uclinux] pid X: failed 256 WAS: problems bootingkernel

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi John,

John Carter wrote:
> I've created a user application, basically "hello, world", using
> printf, added it to the /user/ tree, and it seems to get built just
> fine, but when I run it on the sh shell I get back:
> 
> pid X: failed 256
> 
> where X is an integer value that keeps increasing and increasing.

> I'm guessing these programs are crashing, and this is just sash's way
> of telling us, but I have feeling this is some omission on my part. 
> It does with or without printf.  It does it returning void or int.
> 
> I looked around, but this is a tough one to search on.  Any ideas?

It's not a bug, it's a feature! :)  No, seriously!

It's a symptom of the "sash" shell that you are using - if an 
application returns a non-zero error code, sash reports that code, in 
the rather abrupt manner that you have discovered.

Solutions:

1 - terminate your hello world with return 0 or exit(0)
2 - use a fancier shell (busybox's minix shell is nice).

Regards,

John
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