diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/cris/kernel/module.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/cris/kernel/module.c')
-rw-r--r-- | arch/cris/kernel/module.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/arch/cris/kernel/module.c b/arch/cris/kernel/module.c new file mode 100644 index 000000000000..f1d3e784f30c --- /dev/null +++ b/arch/cris/kernel/module.c | |||
@@ -0,0 +1,121 @@ | |||
1 | /* Kernel module help for i386. | ||
2 | Copyright (C) 2001 Rusty Russell. | ||
3 | |||
4 | This program is free software; you can redistribute it and/or modify | ||
5 | it under the terms of the GNU General Public License as published by | ||
6 | the Free Software Foundation; either version 2 of the License, or | ||
7 | (at your option) any later version. | ||
8 | |||
9 | This program is distributed in the hope that it will be useful, | ||
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | GNU General Public License for more details. | ||
13 | |||
14 | You should have received a copy of the GNU General Public License | ||
15 | along with this program; if not, write to the Free Software | ||
16 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | #include <linux/moduleloader.h> | ||
19 | #include <linux/elf.h> | ||
20 | #include <linux/vmalloc.h> | ||
21 | #include <linux/fs.h> | ||
22 | #include <linux/string.h> | ||
23 | #include <linux/kernel.h> | ||
24 | |||
25 | #if 0 | ||
26 | #define DEBUGP printk | ||
27 | #else | ||
28 | #define DEBUGP(fmt , ...) | ||
29 | #endif | ||
30 | |||
31 | void *module_alloc(unsigned long size) | ||
32 | { | ||
33 | if (size == 0) | ||
34 | return NULL; | ||
35 | return vmalloc(size); | ||
36 | } | ||
37 | |||
38 | |||
39 | /* Free memory returned from module_alloc */ | ||
40 | void module_free(struct module *mod, void *module_region) | ||
41 | { | ||
42 | vfree(module_region); | ||
43 | /* FIXME: If module_region == mod->init_region, trim exception | ||
44 | table entries. */ | ||
45 | } | ||
46 | |||
47 | /* We don't need anything special. */ | ||
48 | int module_frob_arch_sections(Elf_Ehdr *hdr, | ||
49 | Elf_Shdr *sechdrs, | ||
50 | char *secstrings, | ||
51 | struct module *mod) | ||
52 | { | ||
53 | return 0; | ||
54 | } | ||
55 | |||
56 | int apply_relocate(Elf32_Shdr *sechdrs, | ||
57 | const char *strtab, | ||
58 | unsigned int symindex, | ||
59 | unsigned int relsec, | ||
60 | struct module *me) | ||
61 | { | ||
62 | unsigned int i; | ||
63 | Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; | ||
64 | Elf32_Sym *sym; | ||
65 | uint32_t *location; | ||
66 | |||
67 | DEBUGP("Applying relocate section %u to %u\n", relsec, | ||
68 | sechdrs[relsec].sh_info); | ||
69 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { | ||
70 | /* This is where to make the change */ | ||
71 | location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_offset | ||
72 | + rel[i].r_offset; | ||
73 | /* This is the symbol it is referring to. Note that all | ||
74 | undefined symbols have been resolved. */ | ||
75 | sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
76 | + ELF32_R_SYM(rel[i].r_info); | ||
77 | |||
78 | /* We add the value into the location given */ | ||
79 | *location += sym->st_value; | ||
80 | } | ||
81 | return 0; | ||
82 | } | ||
83 | |||
84 | int apply_relocate_add(Elf32_Shdr *sechdrs, | ||
85 | const char *strtab, | ||
86 | unsigned int symindex, | ||
87 | unsigned int relsec, | ||
88 | struct module *me) | ||
89 | { | ||
90 | unsigned int i; | ||
91 | Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr; | ||
92 | |||
93 | DEBUGP ("Applying relocate section %u to %u\n", relsec, | ||
94 | sechdrs[relsec].sh_info); | ||
95 | |||
96 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) { | ||
97 | /* This is where to make the change */ | ||
98 | uint32_t *loc | ||
99 | = ((void *)sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
100 | + rela[i].r_offset); | ||
101 | /* This is the symbol it is referring to. Note that all | ||
102 | undefined symbols have been resolved. */ | ||
103 | Elf32_Sym *sym | ||
104 | = ((Elf32_Sym *)sechdrs[symindex].sh_addr | ||
105 | + ELF32_R_SYM (rela[i].r_info)); | ||
106 | *loc = sym->st_value + rela[i].r_addend; | ||
107 | } | ||
108 | |||
109 | return 0; | ||
110 | } | ||
111 | |||
112 | int module_finalize(const Elf_Ehdr *hdr, | ||
113 | const Elf_Shdr *sechdrs, | ||
114 | struct module *me) | ||
115 | { | ||
116 | return 0; | ||
117 | } | ||
118 | |||
119 | void module_arch_cleanup(struct module *mod) | ||
120 | { | ||
121 | } | ||