9.69 __attribute__((weakref("target"))) variable
This variable attribute marks a variable declaration as an alias that does not by itself require a definition to be given for the target symbol.
This variable attribute is a GNU compiler extension that the
ARM compiler supports.
is the target
In the following example,
a is assigned
the value of
y through a weak reference:
extern int y;
static int x __attribute__((weakref("y")));
void foo (void)
int a = x;
This attribute can only be used on variables that are declared