63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
|
|
* 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 (u32 *ptr, u32 relval,
|
|
u32 flags, u32 *persistent);
|
|
|
|
extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 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))
|
|
|
|
static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
|
|
u32 *addr, u32 *persistent)
|
|
{
|
|
*addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
|
|
return 0;
|
|
}
|
|
|
|
static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
|
|
{
|
|
bfin_put_addr_at_rp(rp, val, relval);
|
|
return 0;
|
|
}
|
|
|
|
/* 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(u32 relval, u32 *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__ */
|