Syntax:
pragma Machine_Attribute (
[Entity =>] LOCAL_NAME,
[Attribute_Name =>] static_string_EXPRESSION
[, [Info =>] static_EXPRESSION] );
Machine-dependent attributes can be specified for types and/or
declarations. This pragma is semantically equivalent to
__attribute__((`attribute_name))` (if info is not
specified) or __attribute__((`attribute_name`(`info)))
in GNU C, where attribute_name is recognized by the
compiler middle-end or the TARGET_ATTRIBUTE_TABLE machine
specific macro. A string literal for the optional parameter info
is transformed into an identifier, which may make this pragma unusable
for some attributes.
For further information see GNU Compiler Collection (GCC) Internals.