loader: Add a readtest command

[manu]

Summary

readtest will simply load the file in memory, useful for timing
loading on some filesystems.

MFC after: 2 weeks
Sponsored by: Beckhoff Automation GmbH & Co. KG

[tsoome]

I think, this should be generic command - it would do for any filesystem read.

[manu]

In D33411#755273, @tsoome wrote:

I think, this should be generic command - it would do for any filesystem read.

Sure, like "read" ?

[tsoome]

In D33411#755311, @manu wrote:

In D33411#755273, @tsoome wrote:

I think, this should be generic command - it would do for any filesystem read.

Sure, like "read" ?

perhaps readtest or something, plain read may be confusing.

stand/libsa/tftp.c

776

Since BIOS loader stack may be very limited (due to memory setup we do have), I'd rather use dynamic allocation there.

[imp]

stand/libsa/tftp.c

786

So what's the format of 'filename' here?

[manu]

Rename the command to readtest

[manu]

stand/libsa/tftp.c

786

Simply a path.

[tsoome]

Thanks.