sigjmp_buf question

[Steve Price]

Where does one look in the source for the definition of what
each of the ints in sigjmp_buf._sjb (or jmp_buf._jb for that
matter) contain?  The only occurrences of it (according to
grep(1)) are in the header file machine/setjmp.h.  I also
looked into src/sys/i386/i386/machdep.c and didn't see anything
that struck me as being what I'm looking for.

TIA.

-steve



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