[un]masking and rtems_interrupt_catch

[Aleix Conchillo Flaqué]

Hi,

reading the documentation of chapter 6 (Interrupt Manager) I have  
found that it does not say anything about how to mask or unmask  
maskable interrupts. I guess this is because the API to do this is  
architecure dependant.

In my case, I use ERC32, so I can use ERC32_Unmask_interrupt, which I  
have found in erc32.h but not in any documentation.

I have also found that the BSP libraries (e.g. erc32) have a  
set_vector function which installs a handler and clears and unmask  
the interrupt if necessary.

I am probably missing something, but if not, would it make sense to  
say this somewhere?

Best regards,

aleix