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Commit | Line | Data |
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1da177e4 | 1 | /* |
120c4d95 | 2 | * flat.h -- uClinux flat-format executables |
1da177e4 LT |
3 | */ |
4 | ||
5 | #ifndef __M68KNOMMU_FLAT_H__ | |
6 | #define __M68KNOMMU_FLAT_H__ | |
7 | ||
468138d7 AV |
8 | #include <linux/uaccess.h> |
9 | ||
1da177e4 LT |
10 | #define flat_argvp_envp_on_stack() 1 |
11 | #define flat_old_ram_flag(flags) (flags) | |
12 | #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) | |
468138d7 AV |
13 | static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, |
14 | u32 *addr, u32 *persistent) | |
15 | { | |
16 | #ifdef CONFIG_CPU_HAS_NO_UNALIGNED | |
17 | return copy_from_user(addr, rp, 4) ? -EFAULT : 0; | |
18 | #else | |
19 | return get_user(*addr, rp); | |
20 | #endif | |
21 | } | |
22 | ||
23 | static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel) | |
24 | { | |
25 | #ifdef CONFIG_CPU_HAS_NO_UNALIGNED | |
26 | return copy_to_user(rp, &addr, 4) ? -EFAULT : 0; | |
27 | #else | |
28 | return put_user(addr, rp); | |
29 | #endif | |
30 | } | |
1da177e4 | 31 | #define flat_get_relocate_addr(rel) (rel) |
f106eac9 | 32 | |
9f42ef4b | 33 | static inline int flat_set_persistent(u32 relval, u32 *persistent) |
f106eac9 EG |
34 | { |
35 | return 0; | |
36 | } | |
1da177e4 | 37 | |
89e6ffd9 GU |
38 | #define FLAT_PLAT_INIT(regs) \ |
39 | do { \ | |
40 | if (current->mm) \ | |
41 | (regs)->d5 = current->mm->start_data; \ | |
42 | } while (0) | |
43 | ||
1da177e4 | 44 | #endif /* __M68KNOMMU_FLAT_H__ */ |