projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1394f032 BW |
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 | ||
| 13 | #define flat_stack_align(sp) /* nothing needed */ | |
| 14 | #define flat_argvp_envp_on_stack() 0 | |
| 15 | #define flat_old_ram_flag(flags) (flags) | |
| 16 | ||
| 17 | extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr, | |
| 18 | unsigned long relval, | |
| 19 | unsigned long flags, | |
| 20 | unsigned long *persistent); | |
| 21 | ||
| 22 | extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr, | |
| 23 | unsigned long relval); | |
| 24 | ||
| 25 | /* The amount by which a relocation can exceed the program image limits | |
| 26 | without being regarded as an error. */ | |
| 27 | ||
| 28 | #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) | |
| 29 | ||
| 30 | #define flat_get_addr_from_rp(rp, relval, flags, persistent) \ | |
| 31 | bfin_get_addr_from_rp(rp, relval, flags, persistent) | |
| 32 | #define flat_put_addr_at_rp(rp, val, relval) \ | |
| 33 | bfin_put_addr_at_rp(rp, val, relval) | |
| 34 | ||
| 35 | /* Convert a relocation entry into an address. */ | |
| 36 | static inline unsigned long | |
| 37 | flat_get_relocate_addr (unsigned long relval) | |
| 38 | { | |
| 39 | return relval & 0x03ffffff; /* Mask out top 6 bits */ | |
| 40 | } | |
| 41 | ||
| 42 | static inline int flat_set_persistent(unsigned long relval, | |
| 43 | unsigned long *persistent) | |
| 44 | { | |
| 45 | int type = (relval >> 26) & 7; | |
| 46 | if (type == 3) { | |
| 47 | *persistent = relval << 16; | |
| 48 | return 1; | |
| 49 | } | |
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 53 | static inline int flat_addr_absolute(unsigned long relval) | |
| 54 | { | |
| 55 | return (relval & (1 << 29)) != 0; | |
| 56 | } | |
| 57 | ||
| 58 | #endif /* __BLACKFIN_FLAT_H__ */ |