f9720205d1
Add minimum support for the Blackfin relocations, since we don't have enough space in each reloc. The idea is to store a value with one relocation so that subsequent ones can access it. Actually, this patch is required for Blackfin. Currently if BINFMT_FLAT is enabled, git-tree kernel will fail to compile. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Cc: David McCullough <davidm@snapgear.com> Cc: Greg Ungerer <gerg@snapgear.com> Cc: Miles Bader <miles.bader@necel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
28 lines
935 B
C
28 lines
935 B
C
/*
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* include/asm-h8300/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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#define flat_stack_align(sp) /* nothing needed */
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#define flat_argvp_envp_on_stack() 1
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#define flat_old_ram_flag(flags) 1
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#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
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#define flat_set_persistent(relval, p) 0
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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 (davidm@snapgear.com)
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*/
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#define flat_get_relocate_addr(rel) (rel)
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#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
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(get_unaligned(rp) & ((flags & FLAT_FLAG_GOTPIC) ? 0xffffffff: 0x00ffffff))
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#define flat_put_addr_at_rp(rp, addr, rel) \
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put_unaligned (((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), rp)
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#endif /* __H8300_FLAT_H__ */
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