The RS/6000 and PowerPC targets define one pragma for controlling
whether or not the longcall attribute is added to function
declarations by default. This pragma overrides the -mlongcall
option, but not the longcall and shortcall attributes.
See IBM RS/6000 and PowerPC Options, for more information about when long
calls are and are not necessary.
longcall (1) ¶Apply the longcall attribute to all subsequent function
declarations.
longcall (0)Do not apply the longcall attribute to subsequent function
declarations.