RE: [Tuxnes-devel] Trying to build on OpenBSD 2.9

[Ben S. <BSi...@Kn...>]

Okay, I misunderstood what context the #define was used in
(unfortunately I haven't got the TuxNES code here to look
at.) Eliminate the #define entirely, and find the C file
which is using the LASTBLANK variable. Change the C file's
LASTBLANK declaration to include the "asm" qualifier, and
all should be well.

As for the "ld" command you included, my suggestion is to
upgrade your binutils!

-ben

-----Original Message-----
From: HUYNH,SONTRI (HP-Richardson,ex1) [mailto:son...@hp...]
Sent: Thursday, August 23, 2001 3:27 PM
To: 'tux...@li...'
Subject: RE: [Tuxnes-devel] Trying to build on OpenBSD 2.9



> Anyhow, my guess is that OpenBSD is using a non-ELF object 
> file format (the 'file'
> command will tell you for sure) and so the C identifier 
> LASTBLANK *is* the asm
> label _LASTBLANK. When you #define LASTBLANK to _LASTBLANK, 
> the C identifier becomes
> _LASTBLANK, which is the asm label __LASTBLANK.

OpenBSD/i386 uses a.out (other architectures use ELF and others)
although it is capable of running ELF binaries (the kernel itself
is a.out).  I've heard about the whole pre-fixing symbol names with
_ .. it seems something is broken.


> There is a way to do this portably, I believe: declare 
> _LASTBLANK with the "asm"
> type qualifier in C, like so:
> extern asm int _LASTBLANK; /* or whatever the C declaration 
> looks like, + asm */

good to know :)  unfortunately, this is a .S file which is being
processed with gcc but doesn't accept C statements.  So I'm still
not sure what the real solution to this is (but I agree, a quick grep
seems to me that LASTBANK isn't even -really- used and could probably
be removed, but what do I know, not having even ran the program once :).
  

I had to add a getopt.h, but then I was able to get all the way down to
table.o, where my linker says:

ld -r -b binary -r -defsym TRANS_TBL=_binary_compdata_start  -o table.o
ld: invalid command option `-b'

this ld is from a pretty old version of binutils.. it doesn't have the -b
or -defsym options.  I am guessing that the -b won't be necessary.. but
maybe there is some way to hack in the TRANS_TBL symbol in manually.
Also, what is this line actually supposed to link?  I see that the output
is table.o... but what are the src objects?

Sorry if I made it seem like it was working, but what fun would it be if
it were that easy? :)

Tomo

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