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Re: redefinition of `cyg_uint32'
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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