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1 | /* |
2 | * include/asm-blackfin/flat.h -- uClinux flat-format executables | |
3 | * | |
4 | * Copyright (C) 2003, | |
5 | * | |
6 | */ | |
7 | ||
8 | #ifndef __BLACKFIN_FLAT_H__ | |
9 | #define __BLACKFIN_FLAT_H__ | |
10 | ||
11 | #include <asm/unaligned.h> | |
12 | ||
1394f032 BW |
13 | #define flat_argvp_envp_on_stack() 0 |
14 | #define flat_old_ram_flag(flags) (flags) | |
15 | ||
16 | extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr, | |
17 | unsigned long relval, | |
18 | unsigned long flags, | |
19 | unsigned long *persistent); | |
20 | ||
21 | extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr, | |
22 | unsigned long relval); | |
23 | ||
24 | /* The amount by which a relocation can exceed the program image limits | |
25 | without being regarded as an error. */ | |
26 | ||
27 | #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) | |
28 | ||
29 | #define flat_get_addr_from_rp(rp, relval, flags, persistent) \ | |
30 | bfin_get_addr_from_rp(rp, relval, flags, persistent) | |
31 | #define flat_put_addr_at_rp(rp, val, relval) \ | |
32 | bfin_put_addr_at_rp(rp, val, relval) | |
33 | ||
34 | /* Convert a relocation entry into an address. */ | |
35 | static inline unsigned long | |
36 | flat_get_relocate_addr (unsigned long relval) | |
37 | { | |
38 | return relval & 0x03ffffff; /* Mask out top 6 bits */ | |
39 | } | |
40 | ||
41 | static inline int flat_set_persistent(unsigned long relval, | |
42 | unsigned long *persistent) | |
43 | { | |
44 | int type = (relval >> 26) & 7; | |
45 | if (type == 3) { | |
46 | *persistent = relval << 16; | |
47 | return 1; | |
48 | } | |
49 | return 0; | |
50 | } | |
51 | ||
52 | static inline int flat_addr_absolute(unsigned long relval) | |
53 | { | |
54 | return (relval & (1 << 29)) != 0; | |
55 | } | |
56 | ||
57 | #endif /* __BLACKFIN_FLAT_H__ */ |