all: merge NaCl branch (part 1)

src/pkg/runtime/vlrt_arm.c

 // Inferno's libkern/vlrt-arm.c
 // http://code.google.com/p/inferno-os/source/browse/libkern/vlrt-arm.c
 //
 //         Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
 //         Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).  All rights reserved.
 //         Portions Copyright 2009 The Go Authors. All rights reserved.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
@@ skipping 18 matching lines @@
 void    runtime·panicstring(char*);
 
 typedef unsigned long   ulong;
 typedef unsigned int    uint;
 typedef unsigned short  ushort;
 typedef unsigned char   uchar;
 typedef signed char     schar;
 
 #define SIGN(n) (1UL<<(n-1))
 
-void
-runtime·panicdivide(void)
-{
-        runtime·panicstring("integer divide by zero");
-}
-
 typedef struct  Vlong   Vlong;
 struct  Vlong
 {
         union
         {
                 struct
                 {
                         ulong   lo;
                         ulong   hi;
                 };
@@ skipping 748 matching lines @@
         return lv.hi > rv.hi ||
                 (lv.hi == rv.hi && lv.lo > rv.lo);
 }
 
 int
 _hsv(Vlong lv, Vlong rv)
 {
         return lv.hi > rv.hi ||
                 (lv.hi == rv.hi && lv.lo >= rv.lo);
 }