forked from Minki/linux
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
|
|
* include/asm-blackfin/flat.h -- uClinux flat-format executables
|
|
*
|
|
* Copyright (C) 2003,
|
|
*
|
|
*/
|
|
|
|
#ifndef __BLACKFIN_FLAT_H__
|
|
#define __BLACKFIN_FLAT_H__
|
|
|
|
#include <asm/unaligned.h>
|
|
|
|
#define flat_stack_align(sp) /* nothing needed */
|
|
#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__ */
|