Hello, I'm working on a debugging software which should be able to determine an exact reason of exception which may (and should) be processed within user space - SIGTRAP, for example. This information should be extracted from cause register (CP0 register 13, select 0), which is cp0_cause of pt_regs. But this register is not stored within sigcontext of signal frame, so it's value is not available from signal handler. Is it a good idea to add a dedicated sigcontext field to store cause register ? Dmitry
