<div>
Thanks for the response. I am trying to test it. Can you advise me on how to export the function name. I have declared it like,<br />
<br />
long * getAppInfo(void);<br />
<br />
but when I check the exported functions, its not there (I check using 'nm' as I am running on AIX).<br />
<br />
Thanks again,<br />
Glen.<br />

</div>


Thanks for the response. I am trying to test it. Can you advise me on how to export the function name. I have declared it like,

long * getAppInfo(void);

but when I check the exported functions, its not there (I check using 'nm' as I am running on AIX).

Thanks again,
Glen.


<div>
How do you export functions in a DLL under AIX?<br />
You should be able to do the same with a global variable.<br />

</div>


How do you export functions in a DLL under AIX?
You should be able to do the same with a global variable.


<div>
I had the same problem originally with the global (it wasn't exported). I referenced it in some of the code, and then it was exported. Not true with the function. I have called it in the code, explicitly named it in an export file, used the linker option to export all symbols, and its still not there !<br />
<br />
I must be missing something ...<br />
<br />
Ta,<br />
Glen.<br />

</div>


I had the same problem originally with the global (it wasn't exported). I referenced it in some of the code, and then it was exported. Not true with the function. I have called it in the code, explicitly named it in an export file, used the linker option to export all symbols, and its still not there !

I must be missing something ...

Ta,
Glen.


<div>
<div class="content wysiwyg-content">
I have an application on AIX that dynamically loads libraries at run-time (the executable is not linked to the libraries). Is it possible to access a global variable inside the executable, from the loaded library ? I tried declaring the global, then using &quot;extern long glName;&quot;, and it compiles. But when I try to access it, my app crashes. P.S. my 'C' is quite rusty.<br />
<br />
Thankyou,<br />
Glen.
</div>
</div>


I have an application on AIX that dynamically loads libraries at run-time (the executable is not linked to the libraries). Is it possible to access a global variable inside the executable, from the loaded library ? I tried declaring the global, then using "extern long glName;", and it compiles. But when I try to access it, my app crashes. P.S. my 'C' is quite rusty.

Thankyou,
Glen.

Accessing global vars in an exe

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.