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<== Date ==> <== Thread ==>
Subject: Re: undefined symbol when loading mrfioc2
From: 王林 <[email protected]>
To: "ygsong" <[email protected]>, <[email protected]>
Date: Tue, 5 Mar 2013 18:14:10 +0800
Hello Younggi,
I add the following definitions and the corresponding declarations to the sysAUtil.s file in my CPCI-6200 (MPC8572 processor) wb3.2/vx6.8 BSP directory, and it works. I think it will also apply to MVME-3100.
 
FUNC_EXPORT(sysIn16)
FUNC_EXPORT(sysOut16)
FUNC_EXPORT(sysIn32)
FUNC_EXPORT(sysOut32)
 
FUNC_BEGIN(sysIn16)
        eieio                   /* Sync I/O operation */
        sync
        lhzx    p0,r0,p0        /* Read word from I/O space */
        bclr    20,0            /* Return to caller */
FUNC_END(sysIn16)
 
FUNC_BEGIN(sysOut16)
        sthx    p1,r0,p0        /* Write a word to I/O space */
        eieio                   /* Sync I/O operation */
        sync
        bclr    20,0            /* Return to caller */
FUNC_END(sysOut16)
 
FUNC_BEGIN(sysIn32)
        eieio                   /* Sync I/O operation */
        sync
        lwzx    p0,r0,p0        /* Read long from I/O space */
        bclr    20,0            /* Return to caller */
FUNC_END(sysIn32)
 
FUNC_BEGIN(sysOut32)
        stwx    p1,r0,p0        /* Write a long to I/O space */
        eieio                   /* Sync I/O operation */
        sync
        bclr    20,0            /* Return to caller */
FUNC_END(sysOut32)
 
 
Lin Wang
 
----- Original Message -----
From: ygsong
Sent: Tuesday, March 05, 2013 2:30 PM
Subject: undefined symbol when loading mrfioc2

Hello:

 

When loading mrfioc2, I got some undefined symbol errors as follows.

 

-> ld < mrf.munch

Warning: module 0x166a330 holds reference to undefined symbol SysIn16.

Warning: module 0x166a330 holds reference to undefined symbol SysOut32.

Warning: module 0x166a330 holds reference to undefined symbol SysIn32.

Warning: module 0x166a330 holds reference to undefined symbol SysOut16.

ld(): module contains undefined symbol(s) and may be unusable.

value = 0 = 0x0

->

 

The undefined symbols are included in /mrfioc2/mrfCommon/src/os/vxWorks/mrfIoOps.h

Do i have to add more items to kernel (bsp) configuration?

Could you help me how to fix this problem?

 

Thanks in advance!

Best regards.

 

Younggi.

--------------------------------------
Build environment is as follows.

--------------------------------------
- EPICS Base3.14.12.2

- vxWorks 6.8

- mvme3100 (mps8540)

- modules : autosave-4.8, devLib2-2.3, mrfioc2-2.0.1



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undefined symbol when loading mrfioc2 ygsong
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