loader: pass args along to unix in C
There's no reason why we can't pass the args gotten from the bootloader to
unix in C.
Note: loader's _start sets the ATAG pointer to 0x100.  This change simply
propagates it to unix.

@@ -9,10 +9,11 @@
  * http://www.illumos.org/license/CDDL.
  */
 
 /*
  * Copyright (c) 2013 Joyent, Inc.  All rights reserved.
+ * Copyright (c) 2015 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
  */
 
 #ifndef _FAKELOADER_H
 #define _FAKELOADER_H
 

@@ -51,11 +52,11 @@
  * ASM operations
  */
 extern void fakeload_unaligned_enable(void);
 extern void fakeload_mmu_enable(void);
 extern void fakeload_pt_setup(uintptr_t);
-extern void fakeload_exec(uintptr_t);
+extern void fakeload_exec(void *, void *, atag_header_t *, uintptr_t);
 
 extern void armv6_dcache_disable(void);
 extern void armv6_dcache_enable(void);
 extern void armv6_dcache_inval(void);
 extern void armv6_dcache_flush(void);