/*
* uClinux flat-format executables
*
* Copyright 2003-2009 Analog Devices Inc.
*
* Licensed under the GPL-2
*/

#ifndef __BLACKFIN_FLAT_H__
#define __BLACKFIN_FLAT_H__

#include <asm/unaligned.h>

#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)

extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
unsigned long relval,
unsigned long flags,
unsigned long *persistent);

extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
unsigned long relval);

/* The amount by which a relocation can exceed the program image limits
without being regarded as an error. */

#define flat_reloc_valid(reloc, size) ((reloc) <= (size))

#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
bfin_get_addr_from_rp(rp, relval, flags, persistent)
#define flat_put_addr_at_rp(rp, val, relval) \
bfin_put_addr_at_rp(rp, val, relval)

/* Convert a relocation entry into an address. */
static inline unsigned long
flat_get_relocate_addr (unsigned long relval)
{
return relval & 0x03ffffff; /* Mask out top 6 bits */
}

static inline int flat_set_persistent(unsigned long relval,
unsigned long *persistent)
{
int type = (relval >> 26) & 7;
if (type == 3) {
*persistent = relval << 16;
return 1;
}
return 0;
}

static inline int flat_addr_absolute(unsigned long relval)
{
return (relval & (1 << 29)) != 0;
}

#endif /* __BLACKFIN_FLAT_H__ */