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Binfmt_flat: Add minimum support for the Blackfin relocations

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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 <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
Cc: David McCullough <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Miles Bader <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Bernd Schmidt 2007-10-03 23:41:43 +08:00 • committed by Bryan Wu
commit f9720205d1
6 changed files with 15 additions and 6 deletions
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3
include/asm-h8300/flat.h
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@ -9,6 +9,7 @@
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) 1
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
#define flat_set_persistent(relval, p) 0
/*
* on the H8 a couple of the relocations have an instruction in the
@ -18,7 +19,7 @@
*/
#define flat_get_relocate_addr(rel) (rel)
#define flat_get_addr_from_rp(rp, relval, flags) \
#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
(get_unaligned(rp) & ((flags & FLAT_FLAG_GOTPIC) ? 0xffffffff: 0x00ffffff))
#define flat_put_addr_at_rp(rp, addr, rel) \
put_unaligned (((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), rp)