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<== Date ==> <== Thread ==>
Subject: Re: Access to device support debugging vars via iocsh (3.14b2)
From: Eric Norum <[email protected]>
To: "S. Joshua Stein" <[email protected]>
Cc: [email protected]
Date: Mon, 19 Aug 2002 09:55:21 -0600

On Monday, August 19, 2002, at 08:52 AM, S. Joshua Stein wrote:

I would like to set a (global) debugging variable which is part of my device
support running on a solaris IOC (3.14b2). In the vxWorks world, I would just
type:

deviceDebugVar=1

This, however, won't work with iocsh. Does anyone know if/how I can gain access
to these variables?

Non-vxWorks IOCs don't have access to the executable symbol table (at the moment) so this trick of assigning to variables doesn't work. About the only thing I can suggest for now is to register a command to set the variable:

/* setDebug */
static const iocshArg setDebugArg0 = { "level",iocshArgInt};
static const iocshArg * const setDebugArgs[1] = {&setDebugArg0};
static const iocshFuncDef setDebugFuncDef = {"setDebug",1,setDebugArgs};
static void setDebugCallFunc(const iocshArgBuf *args)
{
    deviceDebugVar( args[0].ival);
}


Then, somewhere in your device initialization, register the command:
iocshRegister(&setDebugFuncDef,setDebugCallFunc);



Or, you can use a C++ static constructor to register the command for you when the application starts. For example,
class SetDebugRegister {
public:
SetDebugRegister() { iocshRegister(&setDebugFuncDef,setDebugCallFunc); }
};
static SetDebugRegister setDebugRegisterObj;


--
Eric Norum <[email protected]>
Department of Electrical Engineering
University of Saskatchewan
Saskatoon, Canada.
Phone: (306) 966-5394   FAX:   (306) 966-5407

Replies:
Re: Access to device support debugging vars via iocsh (3.14b2) Eric Norum
References:
Access to device support debugging vars via iocsh (3.14b2) S. Joshua Stein
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