[9fans] Drawterm on Linux/PowerPC

[Sven Moritz Hallberg <sm@khjk.org>]

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Hello 9fans,

I've tried to get drawterm to work on my Linux/PowerPC machine. I
_think_ I have "dt2k". I got it from this CVS repo:

	:pserver:anoncvs@cvs.pdos.csail.mit.edu/cvs drawterm

(BTW, it was kind of hard to confirm that this -- appearently -- is in
fact dt2k...)

Unfortunately it doesn't work. The fmtprint functions seem to do stuff
with va_lists that my system doesn't like. Specifically, fmtprint and
many other functions try to assign va_list's to fields in a Fmt
structure. This is simply rejected by my GCC (I tried versions 3.3, 3.4,
and 4.0.2):

gcc -Wall -Wno-missing-braces -ggdb -I.. -I../include -I../kern -c
-I/usr/X11R6/include -D_THREAD_SAFE -pthread -O2 fmtprint.c
fmtprint.c: In function 'fmtprint':
fmtprint.c:20: error: incompatible types in assignment

I tried to replace all the offending assignments with calls to memcpy:

/*      va = f->args; */
        memcpy(&va, &(f->args), sizeof(va_list));

This results in successfull compilation, but immediately crashes drawterm:

$ gdb ./drawterm
[..snip..]
(gdb) runStarting program: /home/pesco/Halde/drawterm/drawterm
[Thread debugging using libthread_db enabled]
[New Thread 805479776 (LWP 12368)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 805479776 (LWP 12368)]
0x10048500 in _runefmt (f=0x7fb7f3f8) at dofmt.c:234
234             x[0] = va_arg(f->args, int);

I've read in

http://www.cs.bell-labs.com/wiki/plan9/THM_2005-06-23_Summary/

that "[Ericvh] has [dt2k] working in ppc-linux". So:


	Eric, can I have your code?

	When will this find its way into the drawterm CVS?

	How can I help?


Greetings,
Sven Moritz

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