RealView Compilation Tools - ARM Information Center

Compiler-specific Features
4.3.1 __attribute__((alias))
This function attribute enables you to specify multiple aliases for functions.
Where a function is defined in the current translation unit, the alias call is replaced by a
call to the function, and the alias is emitted alongside the original name. Where a
function is not defined in the current translation unit, the alias call is replaced by a call
to the real function. Where a function is defined as static, the function name is replaced
by the alias name and the function is declared external if the alias name is declared
external.
Note
This function attribute is a GNU compiler extension supported by the ARM compiler.
Note
Variables names might also be aliased using the corresponding variable attribute
__attribute__((alias)).
Syntax
return-type newname([argument-list]) __attribute__((alias("oldname")));
Where:
oldname
newname
is the name of the function to be aliased
is the new name of the aliased function.
Example
#include
void foo(void)
{
printf("%s\n", __FUNCTION__);
}
void bar(void) __attribute__((alias("foo")));
void gazonk(void)
{
bar(); // calls foo
}
See also
• __attribute__((alias)) on page 4-47.
4-32 Copyright © 2007-2010 ARM. All rights reserved. ARM DUI 0348C
Non-Confidential,
ID101213