Joseph S. Myers wrote: > On Thu, 7 Apr 2011, Gunther Nikl wrote: > >> Is there a (recommended) way how a subtarget can override hook >> functions? > > The implementation of the hook should contain "if" (preferred over #if) > conditions on the particular ABI in use, which could be determined by a > macro in subtarget headers.
Yes, that could work. Unfortunately in this particular case "if ()" won't work because the subtarget does also override CUMULATIVE_ARGS with a version that has additional fields. This probably means that the only solution is to redefine the affected target hook definitions within an #if block and the replacement functions within a similar #if block. Regards, Gunther
