[Freemint-discuss] Struct ucontext_t

[Thorsten O. <ad...@th...>]

While experimenting with some code, i noticed that our struct ucontext in sys/
ucontext_h is similar, but not identical to the one from linux/m68k.

The main differences are that, in the general registers, R_PC/R_PS (i think 
that should be the status register?) are reversed, the sigmask is at a 
different location (maybe because on linux a complete set it is more than just 
a long), and the layout of the floating point register set is different. Would 
it be a problem to reorder them? That could make porting some software much 
easier. As far as i can tell, although that structure is defined, it is 
nowhere used: {get,set,make,swap}context are not implemented, and SA_SIGINFO 
isn't either.