More than 10 args in PID provider

We run into a problem that we couldn't catch more than 10 arguments in a function using PID provider in DTrace. Thanks to Adam Leventhal for workaround. I've checked it for SPARC 32/64 bit programs and it works. Ideally it would be getting args[] working with PID provider and allowing it to get more than 10 arguments - as Adam wrote to me they do work on this and consider allowing more arguments - great!

Workaround:

sparc 32-bit:
        this->argN =
            *(uint32_t *)copyin(uregs[R_SP] + sizeof (uint32_t) * (N + 17),
            sizeof (uint32_t));
        (only applies to args past the first 6)

sparc 64-bit:
        this->argN =
            *(uint64_t *)copyin(uregs[R_SP] + 0x7ff +
            sizeof (uint64_t) * (N + 16), sizeof (uint64_t));
        (only applies to args past the first 6)

x86:
        this->argN =
            *(uint32_t *)copyin(uregs[R_SP] + sizeof (uint32_t) * (N + 1),
            sizeof (uint32_t));

amd64:
        this->argN =
            *(uint64_t *)copyin(uregs[R_SP] + sizeof (uint64_t) * (N - 5),
            sizeof (uint64_t));
        (only applies to args past the first 6)