1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19#include <linux/elf.h>
20#include <linux/moduleloader.h>
21#include <linux/err.h>
22#include <linux/vmalloc.h>
23#include <linux/bug.h>
24#include <asm/module.h>
25#include <asm/uaccess.h>
26#include <asm/firmware.h>
27#include <linux/sort.h>
28#include <asm/setup.h>
29
30LIST_HEAD(module_bug_list);
31
32static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
33 const Elf_Shdr *sechdrs,
34 const char *name)
35{
36 char *secstrings;
37 unsigned int i;
38
39 secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
40 for (i = 1; i < hdr->e_shnum; i++)
41 if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
42 return &sechdrs[i];
43 return NULL;
44}
45
46int module_finalize(const Elf_Ehdr *hdr,
47 const Elf_Shdr *sechdrs, struct module *me)
48{
49 const Elf_Shdr *sect;
50
51
52 sect = find_section(hdr, sechdrs, "__ftr_fixup");
53 if (sect != NULL)
54 do_feature_fixups(cur_cpu_spec->cpu_features,
55 (void *)sect->sh_addr,
56 (void *)sect->sh_addr + sect->sh_size);
57
58 sect = find_section(hdr, sechdrs, "__mmu_ftr_fixup");
59 if (sect != NULL)
60 do_feature_fixups(cur_cpu_spec->mmu_features,
61 (void *)sect->sh_addr,
62 (void *)sect->sh_addr + sect->sh_size);
63
64#ifdef CONFIG_PPC64
65 sect = find_section(hdr, sechdrs, "__fw_ftr_fixup");
66 if (sect != NULL)
67 do_feature_fixups(powerpc_firmware_features,
68 (void *)sect->sh_addr,
69 (void *)sect->sh_addr + sect->sh_size);
70#endif
71
72 sect = find_section(hdr, sechdrs, "__lwsync_fixup");
73 if (sect != NULL)
74 do_lwsync_fixups(cur_cpu_spec->cpu_features,
75 (void *)sect->sh_addr,
76 (void *)sect->sh_addr + sect->sh_size);
77
78 return 0;
79}
80