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36 lines
935 B
36 lines
935 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* arch/h8300/asm/include/flat.h -- uClinux flat-format executables |
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*/ |
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#ifndef __H8300_FLAT_H__ |
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#define __H8300_FLAT_H__ |
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#include <asm/unaligned.h> |
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/* |
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* on the H8 a couple of the relocations have an instruction in the |
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* top byte. As there can only be 24bits of address space, we just |
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* always preserve that 8bits at the top, when it isn't an instruction |
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* is is 0 ([email protected]) |
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*/ |
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#define flat_get_relocate_addr(rel) (rel & ~0x00000001) |
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static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, |
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u32 *addr) |
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{ |
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u32 val = get_unaligned((__force u32 *)rp); |
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if (!(flags & FLAT_FLAG_GOTPIC)) |
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val &= 0x00ffffff; |
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*addr = val; |
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return 0; |
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} |
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static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel) |
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{ |
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u32 *p = (__force u32 *)rp; |
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put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p); |
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return 0; |
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} |
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#endif /* __H8300_FLAT_H__ */
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