nios2_51 : Driver compilation problem

We have migrated from nios2 => nios2_51 and I am trying to compile with nios2_51 an old driver which has already been compiled under nios2.

I have warnings when I compile it and the insmod is refused on the target.

On the board I have the following message :

GXEOE: Unknown symbol memcpy

JGXEOE: Unknown symbol memset

JGXEOE: Unknown symbol __up

JGXEOE: Unknown symbol __down_interruptible

insmod: cannot insert `/home/JGXEOE.o': Unknown symbol in module (-1): No such file or directory

When compiling with a makefile as recommended on the mail (Post# 20 May 2 2005 by Jwistead) i have the following warnings in verbose mode V=1

Building modules, stage 2.

make -rR -f /cygdrive/c/altera/kits/nios2_51/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x/scr

ipts/Makefile.modpost

scripts/mod/modpost -i /cygdrive/c/altera/kits/nios2_51/bin/eclipse/workspace/kernel_stm1_ed3/build/Module.symvers v

mlinux /cygdrive/m/huon3_hds_esoe_dev_7570r1_01_ln/hds_esoe/Stm1oE/Test/jgxeoe_driver/JGXEOE.o

*** Warning: "__up" [/cygdrive/m/huon3_hds_esoe_dev_7570r1_01_ln/hds_esoe/Stm1oE/Test/jgxeoe_driver/JGXEOE.ko] undefined

*** Warning: "__down_interruptible" [/cygdrive/m/huon3_hds_esoe_dev_7570r1_01_ln/hds_esoe/Stm1oE/Test/jgxeoe_driver/JGXE

OE.ko] undefined!

*** Warning: "memset" [/cygdrive/m/huon3_hds_esoe_dev_7570r1_01_ln/hds_esoe/Stm1oE/Test/jgxeoe_driver/JGXEOE.ko] undefined!

*** Warning: "memcpy" [/cygdrive/m/huon3_hds_esoe_dev_7570r1_01_ln/hds_esoe/Stm1oE/Test/jgxeoe_driver/JGXEOE.ko] undefined!

In the vmlinux.map of my kernel memcpy and memset are present !

I don't understand why the symbols are no more found.

I seems that the folders are not exactly the same between nios2 and nios2_51

Has somebody the same trouble ?

Thank you

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