Experimental Physics and
Industrial Control System

"师昊礼" <[email protected]> · Wed, 23 Jul 2008 21:18:38 +0800

Hi, all

   I built an epics application, and I used two functions like this:

   #include <devLib.h>
   char	*localaddrstart;
   unsigned short int testvalue=INIT_TESTVALUE;
   unsigned long baseaddr = 0x20200000;
   if (devRegisterAddress("VME_mapping", atVMEA32, baseaddr, sizeof(struct 
channel), (char *) &(localaddrstart))!=0)
	{
		printf("Out of Bus Mem Map!\n");
		return -1;
	}
   if (devReadProbe(1, localaddrstart, &testvalue) < 0)
	{
	  printf("No board at this address!\n");
	  return -1;
	}

   then, I past the compilation, but when I download the object file to the
target board, and there are the following errors:

   ld("../bin/RTEMS-mvme5500/power_supply.obj")
   Unresolved symbol: pdevLibVirtualOS
   Unresolved symbol: pdevLibVirtualOS
   Unresolved symbol: pdevLibVirtualOS
   Unresolved symbol: pdevLibVirtualOS
   Unresolved symbol: pdevLibVirtualOS
   ......

any help is appreciated, thanks a lot!

Haoli Shi

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System