On 2015-12-01 at  6:34 'Davide Libenzi' via Akaros wrote:
> Yes. In other OSs  there is the notion of binary interpreters.
> In Linux for example, the script_fmt interpreter looks if the first
> byte is '#' and the second byte is '!', and then try to parse the
> interpreter from the first line, and call that by building the proper
> args to it.

If that's something you need, then I'd be up for us having it.

Would we need to put that in the kernel?  Or is that something
userspace could do?  I guess the user would need an open, read, close,
before calling sys_proc_create.  The benefit is the kernel does less
internally, so it's less code in the TCB.

Part of the reason I bring up userspace is that one long-range plan I
had was to get argument parsing completely out of the kernel, where the
parent sets up the user's stack, and the kernel doesn't need to do any
parsing.  Maybe even get the kernel out of the elf processing business.

Barret

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