Win32 DLLS - dllhelpers problem

[Paul Griffin]

The target architecture is actually an ARM7TDMI 

I've seen on Unix based systems how shared libraries
are created with the .so extension type but as i'm
developing on a windows machine through a cygwin host
i need to create dlls or more to the point libraries
of the form  libfoo.dll.a

This is essentially what dllhelpers tries to achieve
and does so successfully on a i686-pc-cygwin version
of gcc i have also built.

what i'm wondering is, is there some fundamental issue
with the arm-elf target that prevents the creation of
DLLs??? 

 --- Kai Ruottu <kai.ruottu@luukku.com> wrote: > Paul
Griffin <griffpaul4@yahoo.co.uk> wrote:
> 
> > i'm trying to build dlls using an arm-elf
> configure
> > version of gcc via cygwin.
> > 
> > i tried to change the makefile so that the
> arm-elf-gcc
> > cross-compiler would be used instead but i get the
> > following errors: 
> 
>  So you want make DLLs for ARM-architecture ?  For
> which
> target system ?
> 
>  The ones I know working using DLLs are the
> ARM/WinCE and
> ARM/EPOC, ie. the PDA/3G-cell-phone systems.
> Meanwhile the
> ARM/Linux, ARM/NetBSD etc. Unix-like systems use
> 'shared
> libraries' '.so's, not DLLs. Both system types have
> nothing
> or very little to do with the static-only embedded
> 'arm-elf'
> target...
> 
> > $make 
> > c:/win/arm/bin/arm-elf-gcc -c -DBUILDING_DLL=1 -I.
> -g
> > -Wall -o cdll.c 
> > In file included from cdll.c:1: 
> > cdll.h:25: warning: return type defaults to 'int' 
> > cdll.h: In function '__declspec': 
> > cdll.h:26: parse error before "__declspec" 
> > 
> > can somebody give me any indication as to why
> these
> > errors occur??? 
> 
>  As told, your toolchain should be the
> 'arm-wince-pe'
> or 'arm-epoc-pe' (and these both are problematic!),
> in
> order to produce DLLs. First you should however tell
> what your aims really are.
> 
>  Browsing the list archives from this month you can
> find discussion about the ARM/WinCE. With ARM/EPOC
> you should switch to the Symbian/Nokia EPOC SDKs via
> 'www.epocworld.com'. Nokia should send the SDK6
> CD(s)
> at no-cost, but how long this takes is then another
> issue, I ordered the kit a couple of weeks ago but
> haven't yet received anything... Maybe I have been
> too critical against Nokia sometimes or something,
> but needing to wait even two weeks sounds weird
> nowadays... "Don't look at the teeths of a horse got
> as a gift!" or something, of course...
> 
>  I have the older SDK 5 which came with the Wrox-
> book "Professional Symbian Programming", and in the
> SDK 6 case some new book could be required... Don't
> yet know what this could be...
> 
>  If you know anything about the 'generic arm-pe'
> target, maybe one can create DLLs for it too, with
> which 'opsys' it will be used and so on, that could
> add something to the common know-how, if you tell
> something about this...
> 
> Cheers, Kai
>  

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