diff options
Diffstat (limited to 'arch/h8300/kernel/module.c')
-rw-r--r-- | arch/h8300/kernel/module.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c deleted file mode 100644 index 1d526e05db19..000000000000 --- a/arch/h8300/kernel/module.c +++ /dev/null | |||
@@ -1,75 +0,0 @@ | |||
1 | #include <linux/moduleloader.h> | ||
2 | #include <linux/elf.h> | ||
3 | #include <linux/vmalloc.h> | ||
4 | #include <linux/fs.h> | ||
5 | #include <linux/string.h> | ||
6 | #include <linux/kernel.h> | ||
7 | |||
8 | #if 0 | ||
9 | #define DEBUGP printk | ||
10 | #else | ||
11 | #define DEBUGP(fmt...) | ||
12 | #endif | ||
13 | |||
14 | int apply_relocate_add(Elf32_Shdr *sechdrs, | ||
15 | const char *strtab, | ||
16 | unsigned int symindex, | ||
17 | unsigned int relsec, | ||
18 | struct module *me) | ||
19 | { | ||
20 | unsigned int i; | ||
21 | Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr; | ||
22 | |||
23 | DEBUGP("Applying relocate section %u to %u\n", relsec, | ||
24 | sechdrs[relsec].sh_info); | ||
25 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) { | ||
26 | /* This is where to make the change */ | ||
27 | uint32_t *loc = (uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
28 | + rela[i].r_offset); | ||
29 | /* This is the symbol it is referring to. Note that all | ||
30 | undefined symbols have been resolved. */ | ||
31 | Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
32 | + ELF32_R_SYM(rela[i].r_info); | ||
33 | uint32_t v = sym->st_value + rela[i].r_addend; | ||
34 | |||
35 | switch (ELF32_R_TYPE(rela[i].r_info)) { | ||
36 | case R_H8_DIR24R8: | ||
37 | loc = (uint32_t *)((uint32_t)loc - 1); | ||
38 | *loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v); | ||
39 | break; | ||
40 | case R_H8_DIR24A8: | ||
41 | if (ELF32_R_SYM(rela[i].r_info)) | ||
42 | *loc += v; | ||
43 | break; | ||
44 | case R_H8_DIR32: | ||
45 | case R_H8_DIR32A16: | ||
46 | *loc += v; | ||
47 | break; | ||
48 | case R_H8_PCREL16: | ||
49 | v -= (unsigned long)loc + 2; | ||
50 | if ((Elf32_Sword)v > 0x7fff || | ||
51 | (Elf32_Sword)v < -(Elf32_Sword)0x8000) | ||
52 | goto overflow; | ||
53 | else | ||
54 | *(unsigned short *)loc = v; | ||
55 | break; | ||
56 | case R_H8_PCREL8: | ||
57 | v -= (unsigned long)loc + 1; | ||
58 | if ((Elf32_Sword)v > 0x7f || | ||
59 | (Elf32_Sword)v < -(Elf32_Sword)0x80) | ||
60 | goto overflow; | ||
61 | else | ||
62 | *(unsigned char *)loc = v; | ||
63 | break; | ||
64 | default: | ||
65 | printk(KERN_ERR "module %s: Unknown relocation: %u\n", | ||
66 | me->name, ELF32_R_TYPE(rela[i].r_info)); | ||
67 | return -ENOEXEC; | ||
68 | } | ||
69 | } | ||
70 | return 0; | ||
71 | overflow: | ||
72 | printk(KERN_ERR "module %s: relocation offset overflow: %08x\n", | ||
73 | me->name, rela[i].r_offset); | ||
74 | return -ENOEXEC; | ||
75 | } | ||