[ECOS] Patch for Re: [ECOS] redefinition of `cyg_uint32'
Juergen Lambrecht
J.Lambrecht@televic.com
Tue May 23 08:23:00 GMT 2006
Hello Andrew,
with FreeBDS, I have the same problem.
By realizing that only the signed types give a problem, and not the
unsigned ones, I found the solution: adding #undef's for the signed types.
The new file ecos/packages/net/bsd_tcpip/current/include/sys/bsdtypes.h
is in attach, together with the diff file (from ExamDiff Pro)
diff_bsdtypes.h.txt
Kind regards,
Juergen Lambrecht
Andrew Lunn wrote:
> On Thu, May 18, 2006 at 04:43:21PM +0200, J?rgen Lambrecht wrote:
>
>> I'm sorry, I confused #define with typedef.
>> This is the correct problem description:
>>
>> The problem started by using the openbsd package.
>>
>
> Ah, O.K. I've not compiled OpenBSD for a long time. Most people have
> swapped to the FreeBSD stack.
>
I just need a ftp server, LWIP does not have it. I will also swap to
FreeBSD.
>
>> In ecos/packages/net/bsd_tcpip/current/include/sys/bsdtypes.h:
>>
>> typedef unsigned int u_int32_t;
>> typedef unsigned int uint32_t;
>>
>> But in ecos/packages/compat/linux/current/include/linux/types.h:
>>
>> #define uint32_t cyg_uint32
>>
>> So apparantly, the compiler replaces in bsdtypes.h the 'uint32_t' with
>> cyg_uint32, which becomes then redefined.
>> Apparantly, because it is not possible because the same file bdstypes.h
>> contains also:
>> #undef uint32_t
>>
>> The compiler complains when compiling jffs2:
>> arm-elf-gcc -c ... ecos/packages/fs/jffs2/current/src/compr.c
>> And compr.h contains
>> #include <linux/types.h>
>>
>> What happens when a typedefed "uint32_t" exists, follewed by #define'ing
>> it??
>> Could that be the cause of problems?
>>
>
> Yes, this seems reasonable.
>
> So the question is, why is sys/bsdtypes.h being included in compr.h?
>
> Andrew
>
I followed the compiler trace, and this is the answer:
#if !defined(_POSIX_SOURCE)
# if CYGINT_ISO_BSDTYPES
# ifdef CYGBLD_ISO_BSDTYPES_HEADER
# include CYGBLD_ISO_BSDTYPES_HEADER
# endif
# endif
#endif // !defined(_POSIX_SOURCE)
From isoinfra/current/include/sys/types.h:112
This is the trace:
In file included from
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/sys/bsdtypes.h:80,
->net/bsd_tcpip/current/include/sys/bsdtypes.h
from
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/sys/types.h:112,
->isoinfra/current/include/sys/types.h
from
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/sys/stat.h:69,
->isoinfra/current/include/sys/stat.h
from
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/linux/stat.h:5,
->compat/linux/current/include/linux/stat.h
from
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/linux/fs.h:4,
->compat/linux/current/include/linux/fs.h
from
/ecos-c/version/vcs/c/ims/std_ims/ecos/packages/fs/jffs2/current/src/compr.h:24,
->fs/jffs2/current/src/compr.h
from
/ecos-c/version/vcs/c/ims/std_ims/ecos/packages/fs/jffs2/current/src/compr.c:16:
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/machine/types.h:41:
redefinition of `cyg_int8'
/ecos-c/version/vcs/c/ims/std_ims/build/ecos_ims/install/include/cyg/infra/cyg_type.h:203:
`cyg_int8' previously declared here
Kind regards,
Juergen Lambrecht
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