58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* include/asm-blackfin/flat.h -- uClinux flat-format executables
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*
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* Copyright (C) 2003,
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*
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*/
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#ifndef __BLACKFIN_FLAT_H__
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#define __BLACKFIN_FLAT_H__
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#include <asm/unaligned.h>
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#define flat_stack_align(sp) /* nothing needed */
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#define flat_argvp_envp_on_stack() 0
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#define flat_old_ram_flag(flags) (flags)
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extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
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unsigned long relval,
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unsigned long flags,
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unsigned long *persistent);
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extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
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unsigned long relval);
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/* The amount by which a relocation can exceed the program image limits
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without being regarded as an error. */
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#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
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#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
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bfin_get_addr_from_rp(rp, relval, flags, persistent)
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#define flat_put_addr_at_rp(rp, val, relval) \
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bfin_put_addr_at_rp(rp, val, relval)
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/* Convert a relocation entry into an address. */
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static inline unsigned long
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flat_get_relocate_addr (unsigned long relval)
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{
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return relval & 0x03ffffff; /* Mask out top 6 bits */
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}
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static inline int flat_set_persistent(unsigned long relval,
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unsigned long *persistent)
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{
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int type = (relval >> 26) & 7;
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if (type == 3) {
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*persistent = relval << 16;
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return 1;
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}
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return 0;
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}
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static inline int flat_addr_absolute(unsigned long relval)
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{
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return (relval & (1 << 29)) != 0;
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}
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#endif /* __BLACKFIN_FLAT_H__ */
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