Re: [Yaffs] How to use nandemul in yaffs2

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Author: eq
Date:
To: yaffs@stoneboat.aleph1.co.uk
CC: Charles Manning
Subject: Re: [Yaffs] How to use nandemul in yaffs2

On Wed, 07 Jun 2006 15:40:25 +0800, Charles Manning
<manningc2@actrix.gen.nz> wrote:

> On Tuesday 06 June 2006 20:35, eq wrote:
>> Hi
>> I comfront a problem about the yaff2,how to use the nandemul ?
>> I just mount -t yaffsram none /mnt ,but it doesnot works, why?
>
> You misunderstand the use of the mount command. The parameter after -t
> is the
> file system type which must be yaffs or yaffs2.
>>
>
>
> With yaffs1 there is a built-in ram emulator (yaffs_ramem.c) that does
> not
> require an mtd device. This is no longer supported by yaffs2.
>
> Instead, for yaffs2 you must use a fake mtd device that does the
> emulation.
> You can eirther use one from the mtd group or the one in yaffs CVS.
> Asusming
> you're using the latter than you need to do something like the follwowng:
>
> First load the nand emulation module
>
> # insmod nandemul2k.o
>
> Now there is an "mtd device" which looks like NAND but is really RAM.
>
> You can now mount this with
>
> # mount -t yaffs2 /dev/mtdblock/1 /mnt
>
> NB I have not tied this for a while.
>
> -- Charles
>

I found that , compile the nandemul2k.o error:

gcc -c -D__KERNEL__ -DMODULE   -I/lib/modules/2.6.16.19/build/include -O2  
-Wall
-g nandemul2k.c -o nandemul2k.o
In file included from  
/lib/modules/2.6.16.19/build/include/linux/rwsem.h:27,
                  from  
/lib/modules/2.6.16.19/build/include/asm/semaphore.h:42,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:20,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/rwsem.h: In function  
`__down_read':
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:105: parse error before  
"KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/rwsem.h: In function  
`__down_write':
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:157: parse error before  
"KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/rwsem.h: In function `__up_read':
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:194: parse error before  
"KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:188: warning: unused  
variable `tmp'
/lib/modules/2.6.16.19/build/include/asm/rwsem.h: In function `__up_write':
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:220: parse error before  
"KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/rwsem.h: In function  
`__downgrade_write':
/lib/modules/2.6.16.19/build/include/asm/rwsem.h:245: parse error before  
"KBUILD_BASENAME"
In file included from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:20,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/semaphore.h: In function `down':
/lib/modules/2.6.16.19/build/include/asm/semaphore.h:105: parse error  
before "KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/semaphore.h: In function  
`down_interruptible':
/lib/modules/2.6.16.19/build/include/asm/semaphore.h:130: parse error  
before "KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/semaphore.h: In function  
`down_trylock':
/lib/modules/2.6.16.19/build/include/asm/semaphore.h:155: parse error  
before "KBUILD_BASENAME"
/lib/modules/2.6.16.19/build/include/asm/semaphore.h: In function `up':
/lib/modules/2.6.16.19/build/include/asm/semaphore.h:179: parse error  
before "KBUILD_BASENAME"
In file included from /lib/modules/2.6.16.19/build/include/asm/smp.h:18,
                  from /lib/modules/2.6.16.19/build/include/linux/smp.h:19,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:26,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:6:25: mach_mpspec.h: 没有 
那个
文件或目录
In file included from /lib/modules/2.6.16.19/build/include/asm/smp.h:18,
                  from /lib/modules/2.6.16.19/build/include/linux/smp.h:19,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:26,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/mpspec.h: At top level:
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:8: `MAX_MP_BUSSES'  
undeclared
here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:9: `MAX_MP_BUSSES'  
undeclared
here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:10: `MAX_MP_BUSSES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:12: `MAX_MP_BUSSES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:21: `MAX_MP_BUSSES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:21: conflicting types  
for `mp_bus_id_to_type'
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:8: previous declaration  
of `mp_bus_id_to_type'
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:23: `MAX_IRQ_SOURCES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:25: `MAX_MP_BUSSES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:25: conflicting types  
for `mp_bus_id_to_pci_bus'
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:12: previous declaration  
of `mp_bus_id_to_pci_bus'
In file included from /lib/modules/2.6.16.19/build/include/asm/smp.h:20,
                  from /lib/modules/2.6.16.19/build/include/linux/smp.h:19,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:26,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/io_apic.h:158: `MAX_IRQ_SOURCES'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/io_apic.h:158: conflicting types  
for `mp_irqs'
/lib/modules/2.6.16.19/build/include/asm/mpspec.h:23: previous declaration  
of `mp_irqs'
In file included from /lib/modules/2.6.16.19/build/include/linux/smp.h:19,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:26,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/smp.h:77:26: mach_apicdef.h: 没有 
那个文件或目录
In file included from /lib/modules/2.6.16.19/build/include/linux/smp.h:19,
                  from  
/lib/modules/2.6.16.19/build/include/linux/sched.h:26,
                  from  
/lib/modules/2.6.16.19/build/include/linux/module.h:10,
                  from nandemul2k.c:19:
/lib/modules/2.6.16.19/build/include/asm/smp.h: In function  
`hard_smp_processor_id':
/lib/modules/2.6.16.19/build/include/asm/smp.h:81: warning: implicit  
declaration of function `GET_APIC_ID'
In file included from /lib/modules/2.6.16.19/build/include/linux/irq.h:22,
                  from /lib/modules/2.6.16.19/build/include/asm/hardirq.h:6,
                  from  
/lib/modules/2.6.16.19/build/include/linux/hardirq.h:7,
                  from  
/lib/modules/2.6.16.19/build/include/linux/interrupt.h:11,                  
 from nandemul2k.c:28:
/lib/modules/2.6.16.19/build/include/asm/irq.h:16:25: irq_vectors.h: 没有那 
个文
件或目录
In file included from /lib/modules/2.6.16.19/build/include/asm/hardirq.h:6,
                  from  
/lib/modules/2.6.16.19/build/include/linux/hardirq.h:7,
                  from  
/lib/modules/2.6.16.19/build/include/linux/interrupt.h:11,                  
 from nandemul2k.c:28:
/lib/modules/2.6.16.19/build/include/linux/irq.h: At top level:
/lib/modules/2.6.16.19/build/include/linux/irq.h:85: `NR_IRQS' undeclared  
here (not in a function)
In file included from /lib/modules/2.6.16.19/build/include/linux/irq.h:94,
                  from /lib/modules/2.6.16.19/build/include/asm/hardirq.h:6,
                  from  
/lib/modules/2.6.16.19/build/include/linux/hardirq.h:7,
                  from  
/lib/modules/2.6.16.19/build/include/linux/interrupt.h:11,                  
 from nandemul2k.c:28:
/lib/modules/2.6.16.19/build/include/asm/hw_irq.h:30: `NR_IRQ_VECTORS'  
undeclared here (not in a function)
/lib/modules/2.6.16.19/build/include/asm/hw_irq.h:34: `NR_IRQS' undeclared  
here
(not in a function)
In file included from /lib/modules/2.6.16.19/build/include/asm/hardirq.h:6,
                  from  
/lib/modules/2.6.16.19/build/include/linux/hardirq.h:7,
                  from  
/lib/modules/2.6.16.19/build/include/linux/interrupt.h:11,                  
 from nandemul2k.c:28:
/lib/modules/2.6.16.19/build/include/linux/irq.h:99: `NR_IRQS' undeclared  
here (not in a function)
/lib/modules/2.6.16.19/build/include/linux/irq.h:115: `NR_IRQS' undeclared  
here
(not in a function)
nandemul2k.c:258: warning: `nandemul2k_ReadId' defined but not used
nandemul2k.c:267: warning: `nandemul2k_ReadStatus' defined but not used
make: *** [nandemul2k.o] Error 1

I just cd the mtdemul dir ,type make ,but..,why ?

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