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World: r3wp

[Red] Red language group

Kaj
27-May-2011
[1585x2]
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 :-)
Dockimbel
27-May-2011
[1587]
Ah! :-) But can it run R2/View?
Kaj
27-May-2011
[1588x2]
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
Dockimbel
27-May-2011
[1590]
Ok, so I need to compile Red/System scripts elsewhere and copy them 
in Syllable.
Kaj
27-May-2011
[1591]
I'm using View on our inhouse Syllable Workstation, which I could 
give you a download for
Dockimbel
27-May-2011
[1592]
copy them => copy the built binaries
Kaj
27-May-2011
[1593]
Yes, I cross-compile everything on Syllable Workstation
Dockimbel
27-May-2011
[1594]
Let me try Desktop first on VMware
Kaj
27-May-2011
[1595]
Wow, base-address	-2147483648 compiles
Dockimbel
27-May-2011
[1596]
Well done Andreas! :-)
Andreas
27-May-2011
[1597]
now do the binaries run :) ?
Kaj
27-May-2011
[1598]
I'll have to reboot
Dockimbel
27-May-2011
[1599]
If you can upload the binary somewhare I can test it from my running 
Desktop image.
Kaj
27-May-2011
[1600x2]
readelf -a looks reasonable
I've compiled the 0MQ binding, and that isn't ported to Desktop yet
Andreas
27-May-2011
[1602]
what's the dynamic linker called on syllable desktop? would/should 
/lib/ld-linux.so.2 work?
Kaj
27-May-2011
[1603x4]
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
Dockimbel
27-May-2011
[1607x2]
Ok, trying to download them (wget?)
Got it
Kaj
27-May-2011
[1609x4]
Wget is not onboard. Curl is
The browser is easiest
Or R3
No, that's only on the live CD
Dockimbel
27-May-2011
[1613]
Runs but doesn't display anything.
Kaj
27-May-2011
[1614]
Look at the end of /var/log/kernel
Dockimbel
27-May-2011
[1615x2]
memmap_instance() RO overlap RW (80000000 + 00001000 -> 80000000)
ERROR : execve(./hello) failed. Too late to recover, will exit
Kaj
27-May-2011
[1617]
That would be the next thing to work on
Andreas
27-May-2011
[1618]
that sounds like something alignment-related is broken
Kaj
27-May-2011
[1619]
Alignment should basically be the same as on Linux
Dockimbel
27-May-2011
[1620x2]
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.
Kaj
27-May-2011
[1622x2]
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?"
Dockimbel
27-May-2011
[1624]
Ok
Andreas
27-May-2011
[1625]
i think syllable just ignored the alignment setting in the elf header 
last time we tried this
Kaj
27-May-2011
[1626]
http://syllable.cvs.sourceforge.net/viewvc/syllable/syllable/system/sys/kernel/kernel/elf.c?view=markup
Dockimbel
27-May-2011
[1627]
Thanks.
Andreas
27-May-2011
[1628]
line 1111 originates the error
Kaj
27-May-2011
[1629]
I've uploaded a new empty with page-size 1
Dockimbel
27-May-2011
[1630]
Same error.
Andreas
27-May-2011
[1631x2]
hmm, if syllable ignores the alignment i guess we have to properly 
align things
:)
Kaj
27-May-2011
[1633]
We can load an awful lot of other software, so it seems prudent
Andreas
27-May-2011
[1634]
in line 183 of formats/ELF.r, change data-ptr: code-ptr + code-size 
to data-ptr: code-ptr + page-size