I compile with yaffs direct all the time. This is how I do all the YAFFS file 
systel "guts" development, using Linux. 

the directtest builds for me fine (with a few warnings) but the bootloader  
does not (missing nand_ecc.c). I shall fix that by moving it to yaffs_ecc.c

The direct test in CVS should build fine. Please fetch from CVS again into a 
clean directory.

More below


On Saturday 11 December 2004 11:33, Michael Erickson wrote:
> Hello all,
>
> Just wondering if anyone has actually ever used the direct interface. I
> got the latest version out of CVS yesterday. When I try and build the
> code I get the following error:
>
> [snip]
> mikee 03:57 PM $ make all
> ln -s ../devextras.h devextras.h
> ln -s ../yaffs_ecc.c yaffs_ecc.c
> ln -s ../yaffs_ecc.h yaffs_ecc.h
> ln -s ../yaffs_guts.c yaffs_guts.c
> ln -s ../yaffs_guts.h yaffs_guts.h
> ln -s ../yaffsinterface.h yaffsinterface.h
> ln -s ../yportenv.h yportenv.h
> gcc -c -Wall -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -g
> dtest.c -o dtest.o
> In file included from dtest.c:9:
> yaffsfs.h:169: warning: no semicolon at end of struct or union
> yaffsfs.h:169: error: syntax error before '.' token
> yaffsfs.h:170: error: syntax error before '.' token
> yaffsfs.h:171: error: syntax error before '.' token

These messages don't seem to be consistent with the source.

> dtest.c: In function `copy_in_a_file':
> dtest.c:18: warning: implicit declaration of function `open'
> dtest.c:21: warning: implicit declaration of function `read'
> dtest.c:32: warning: implicit declaration of function `close'
> dtest.c: In function `dumpDirFollow':
> dtest.c:184: error: storage size of `s' isn't known
> dtest.c:222: warning: int format, off_t arg (arg 3)
> dtest.c:184: warning: unused variable `s'
> dtest.c: In function `dumpDir':
> dtest.c:229: error: storage size of `s' isn't known
> dtest.c:267: warning: int format, off_t arg (arg 3)
> dtest.c:229: warning: unused variable `s'
> dtest.c: In function `long_test':
> dtest.c:306: error: storage size of `ystat' isn't known
> dtest.c:468: warning: int format, off_t arg (arg 2)
> dtest.c:518: warning: implicit declaration of function
> `yaffs_DumpDevStruct' dtest.c:306: warning: unused variable `ystat'
> dtest.c: In function `cache_bypass_bug_test':
> dtest.c:621: warning: unused variable `i'
> make: *** [dtest.o] Error 1
> [/snip]
>
> I've searched through the code quite a bit but can't seem to come up
> with what is wrong with the structure. It seems as though my development
> system's header files are over-riding something.
>
> Is YAFFS direct compile-able on a Linux box?
> Can I _not_ include standard headers?
>
> The documentation on the direct interface says the following:
>
> [snip]
> Compilation Configuration
>
> Configuration is done in four places:
> 	* yaffscfg.c: OS specific functions
> 	* yaffscfg.h: Preferably only change YAFFSFS_N_HANDLES, the
> 	  number of files that can be simultaneously opened.
> 	* yportenv.h: Preferably do not change this.
> 	* Compile options. The valid compile options for the YAFFS
> 	  direct interface are:
> 	* CONFIG_YAFFS_DIRECT must be enabled to use the direct
> 	  interface.
> 	* CONFIG_YAFFS_SHORT_NAMES_IN_RAM define to enable short name
> 	  caching. This is suggested in cases unless RAM is very
> 	  limited.
> [/snip]
>
> I checked yaffscfg.c and it appeared to have reasonably stubbed-out
> functions which should allow the system to compile.
>
> Everything else listed there says to not change it. So, I guess I'm
> stuck for the moment.
>
> Any input would be greatly appreciated.
>
> Thanks,
> 	--mike