Put missing END() markers to set ELF symbol size.

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

Use a plain float constant, no need to deal with messy 0r prefix

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Don't use 1: label; it is uses by the PIC_PROLOGUE macro and we jmp in the
wrong place!

RCSID fixes: Always use the NetBSD rcsid and the macro RCSID() defined in
<machine/asm.h>; Also syscalls should be protected using the SYSLIBC_SCCS
define not LIBC_SCCS

Remove #include "SYS.h"; it is not needed (by normal assembly functions)

Use <machine/asm.h> instead of DEFS.h

Pedanticism.

Remove spurious PIC_EPILOGUE and PIC_GOTOFF macros.

Gcc helper functions should still use the ENTRY() macro so they will be
show up in profiled code. (The gcc helper functions in the other ports
do this allready).

So many files in arch/i386 have been changed I might as well run my
remove unecessary trailing whitespace script.

Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change
th LIBC_RCS, the entire source tree should be updated at once.
Remove && !defined(lint) from conditionals around rcs id's.

Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change
th LIBC_RCS, the entire source tree should be updated at once.
Remove && !defined(lint) from conditionals around rcs id's. No one is
ever going to pass a *.s file through lint.

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make an arch directory in libc, and move all machine dirs into it