World: r3wp

hm, kaj, could you try setting
base-address:  -2147483648
and see if that generates binaries which work?

But that's Syllable Server, my Linux, so it won't provide any testing 
abilities for Red beyond another Linux

Also, View doesn't run on it. You'd need my unreleased graphical 
version with X11 to run the Red compiler

For testing PIC mode, you'd need Syllable Desktop, for example the 
live CD you got at ReBorCon :-)

Andreas, I'll give it a try

Shouldn't I use one of the VMware v0.6.6 images rather than the install 
CD?

Or should I wait for your graphical version with X11?

You'r mixing up Desktop and Server. 0.6.6 is Desktop, X11 is Server, 
which is Linux

If you want to run Desktop, 0.6.6 indeed has a ready VMware image. 
On the other hand, the live CD you have has some enhancements. Such 
as R3 and the cURL binding :-)

Ah! :-) But can it run R2/View?

Desktop can only run ORCA, Boron and now R3. That's why I've never 
been able to use REBOL in the past decade

Server has R2/Core, Boron and ORCA onboard

Ok, so I need to compile Red/System scripts elsewhere and copy them 
in Syllable.

I'm using View on our inhouse Syllable Workstation, which I could 
give you a download for

copy them => copy the built binaries

Yes, I cross-compile everything on Syllable Workstation

Let me try Desktop first on VMware

Wow, base-address	-2147483648 compiles

Well done Andreas! :-)

now do the binaries run :) ?

I'll have to reboot

If you can upload the binary somewhare I can test it from my running 
Desktop image.

readelf -a looks reasonable

I've compiled the 0MQ binding, and that isn't ported to Desktop yet

what's the dynamic linker called on syllable desktop? would/should 
/lib/ld-linux.so.2 work?

No need. It's in the kernel, so it doesn't need to be referenced 
from every binary

I've compiled empty and hello now

http://red.esperconsultancy.nl/empty

http://red.esperconsultancy.nl/hello

Ok, trying to download them (wget?)

Got it

Wget is not onboard. Curl is

The browser is easiest

Or R3

No, that's only on the live CD

Runs but doesn't display anything.

Look at the end of /var/log/kernel

memmap_instance() RO overlap RW (80000000 + 00001000 -> 80000000)

ERROR : execve(./hello) failed. Too late to recover, will exit

That would be the next thing to work on

that sounds like something alignment-related is broken

Alignment should basically be the same as on Linux

Kaj, what was the link for Syllable's ELF loader source code?

Just want to have a look at the source, I won't debug it right now, 
I'm still preparing slides for tomorrow's presentation.

I'll try this again

Kaj: 
I tested the new section headers on Syllable Desktop.

memmap_instance() RO overlap RW (08048000 + 00001000 -> 08048000)"


besides the entry point address being a problem, this could also 
be due to segment alignment, which we basically ignore, at the moment. 
could you try changing "page-size: 4096" to "page-size: 1" and see 
where that gets us?"

Ok

i think syllable just ignored the alignment setting in the elf header 
last time we tried this

http://syllable.cvs.sourceforge.net/viewvc/syllable/syllable/system/sys/kernel/kernel/elf.c?view=markup

Thanks.