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Subject: Re: Quake 2 DOS with DX3!
From: "Juan Manuel Guerrero (juan DOT guerrero AT gmx DOT de)" <djgpp AT delorie DOT com>
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On Thursday, June 25, 2015 at 8:35:03 AM UTC+2, Frank Sapone (emoaddict15 AT gmail DOT com) wrote:
> Hey all, I got DX3 modules working in Q2DOS.  I was pleasantly surprised 
> to see loading and unloading both worked so you can change game mods at 
> will.
> 
> The only issue I saw was at link time with DXE3GEN I got some unresolved 
> issues so I used -U to silence that.
> 
> I used the example code to catch unresolved symbols at dll load time and 
> had to add this stuff:
> 
> DXE_EXPORT_TABLE (syms)
>    DXE_EXPORT (printf)
>    DXE_EXPORT (sprintf)
>    DXE_EXPORT (tan)
>    DXE_EXPORT (free)
>    DXE_EXPORT (strcat)
>    DXE_EXPORT (strcmp)
>    DXE_EXPORT (rand)
>    DXE_EXPORT (ceil)
>    DXE_EXPORT (_doprnt)
>    DXE_EXPORT (fwrite)
>    DXE_EXPORT (strncpy)
>    DXE_EXPORT (atoi)
>    DXE_EXPORT (memcpy)
>    DXE_EXPORT (memset)
>    DXE_EXPORT (fprintf)
>    DXE_EXPORT (strtol)
>    DXE_EXPORT (strdup)
>    DXE_EXPORT (strcasecmp)
>    DXE_EXPORT (fread)
>    DXE_EXPORT (fopen)
>    DXE_EXPORT (time)
>    DXE_EXPORT (strtod)
>    DXE_EXPORT (strchr)
>    DXE_EXPORT (fclose)
>    DXE_EXPORT (sscanf)
>    DXE_EXPORT (memcmp)
>    DXE_EXPORT (sqrt)
>    DXE_EXPORT (strtok)
>    DXE_EXPORT (localtime)
>    DXE_EXPORT (cos)
>    DXE_EXPORT (sin)
>    DXE_EXPORT (strlen)
>    DXE_EXPORT (errno)
>    DXE_EXPORT (atan2)
>    DXE_EXPORT (qsort)
>    DXE_EXPORT (floor)
>    DXE_EXPORT (strstr)
>    DXE_EXPORT (strcpy)
>    DXE_EXPORT (__dj_ctype_tolower)
>    DXE_EXPORT (__dj_ctype_toupper)
>    DXE_EXPORT (__dj_assert)
>    DXE_EXPORT (atof)
>    DXE_EXPORT (atan)
>    DXE_EXPORT (asin)
>    DXE_EXPORT (vectoangles2)
>    DXE_EXPORT (crand)
>    DXE_EXPORT (stpcpy)
> DXE_EXPORT_END
> 
> Is there a way around this?  Other mods may need more symbols to be 
> added which could become difficult to maintain.
> 
> Frank


No, I had the same problem when I tried to implement dll support for the lua port.  AFAIK there is no way to modify this table at run time.  This is one of the lots of drawbacks of dxe3.

Regards,
Juan M. Guerrero