Subject: Re: Modifications of standard headers for PECOFF
To: None <>
From: Christos Zoulas <>
List: tech-userlevel
Date: 05/16/2002 13:15:38
In article <>,
TAMURA Kent <> wrote:

I don't have a problem with that. But is that limited to libc?
Perhaps a better name than LIBC_EXTERN would be __export?


>I'd like to modify some standard headers as follows to support
>PECOFF format, on which the PEACE project [1] bases.
>- Add /usr/include/sys/cdefs_pe.h
>- Add LIBC_EXTERN definitions to cdefs_elf.h, cdefs_aout.h and cdefs_pe.h like:
>   cdefs_elf.h cdefs_aout.h:
>	#define LIBC_EXTERN extern
>   cdefs_pe.h:
>	#ifdef LIBC
>	#define LIBC_EXTERN __declspec(dllexport) extern
>	#else
>	#define LIBC_EXTERN __declspec(dllimport) extern
>	#endif
>- Modify cdefs.h so that it includes cdefs_pe.h if __PECOFF__ is defined.
>- For global variables defined in libc and exposed to the outside of libc,
>  add LIBC_EXTERN to their declaration. For example,
>   stdio.h:
>	extern FILE __sF[];
>	->
>The modifications are required because of the special treatment
>for global variables exported/imported over DLLs. In the PEACE
>project, we provide PECOFF versions of some standard libraries
>such as libc.dll.  If the standard headers in /usr/include
>supports PECOFF, we don't have to copy the headers and patch
>Any comments?
>TAMURA Kent <> <>