[Yaffs] Problems compiling YAFFS direct interface.
Michael Erickson
mikee@logicpd.com
Mon, 13 Dec 2004 14:00:55 -0600
Frank, thanks for the email. It appears that I am having the same
problem as you.
In file /direct/yaffsfs.h, I re-named the following members of structure
yaffs_stat:
st_atime => st_atim
st_mtime => st_mtim
st_ctime => st_ctim
Doing so got rid of the compile error I was having. Of course it
introduced several others which now have to be fixed :)
So, the question now becomes two parts:
1) Charles, why is it that you don't get the same errors?
2) How should we go about fixing them in a uniform way?
Anyone have any input on how to proceed?
Best regards,
--mikee
Frank Rowand wrote:
> Charles Manning wrote:
>
>> 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
>
>
> I have not tried using the direct interface, but the cause of the
> above errors is probably the same as I reported on 11/22 (look
> for an email with the subject "fix for mkyaffsimage compile error").
>
> What I wrote there is:
>
> When I compile mkyaffsimage on RedHat 9.0, I get errors that look
> like the errors reported in the email thread "Compile error when using
> yaffs/direct" started by Daniel Gustafsson, Fri, 8 Oct 2004 15:28:35.
>
> The problem is caused by some #define statements in
> /usr/include/bits/stat.h:
>
> # define st_atime st_atim.tv_sec /* Backward compatibility. */
> # define st_mtime st_mtim.tv_sec
> # define st_ctime st_ctim.tv_sec
>
> The attached patch is one way to fix the problem for mkyaffsimage. It
> renames the st_*time fields to st_tim.
>
> If this is an acceptable way to fix the problem, then I can update
> the patch to include the in-kernel files and the files in the direct
> directory since they reference these same fields.
>
>
>>
>>
>> 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
>
>
> -Frank
--
Michael Erickson
Senior Software Engineer
Logic Product Development
(612) 436-5118
mailto:mikee@logicpd.com
http://www.logicpd.com