troubleshooting Question

use of variable attribute

Avatar of perlperl
perlperl asked on
CC++
4 Comments3 Solutions332 ViewsLast Modified:
I saw at some places in my code the functions were defined in this way

#define USED_ATTR __attribute__ ((used))
return_type  func_name(parameters) const  USED_ATTR  { }

I tried to read this but cannot understand the real use case of this
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0348c/BABCJJID.html

What exactly is    __attribute__ ((used))  doing underneath
What does it mean by retain in object file
ASKER CERTIFIED SOLUTION
Zoppo

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