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- Use FBSDID in trap.c - Make the global trap_sig[] static as it's not used outside of trap.c. - In sendsig() remove an unused variable. - In trap() sync with the other archs; for fast data access MMU miss and data access protection traps set ksi_addr to the SFAR reg which contains the faulting address and otherwise to the TPC reg. Generally the TCP reg contains the address of the instruction that caused the exception, except for fast instruction access traps (and some others; more refinement may be needed here) it also contains the faulting address. Previously sendsig() always set si_addr to the SFAR reg which is wrong for most traps. - In sendsig() add support for FreeBSD old-style signals. These changes are inspired by kmacy's sun4v changes and allow libsigsegv to build on FreeBSD/sparc64, but it doesn't pass all checks and tests it actually should, yet. MFC after: 5 days
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