1 /* Kernel module help for powerpc.
2 Copyright (C) 2001, 2003 Rusty Russell IBM Corporation.
3 Copyright (C) 2008 Freescale Semiconductor, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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 <linux/uaccess.h>
26 #include <asm/firmware.h>
27 #include <linux/sort.h>
28 #include <asm/setup.h>
30 static LIST_HEAD(module_bug_list
);
32 static const Elf_Shdr
*find_section(const Elf_Ehdr
*hdr
,
33 const Elf_Shdr
*sechdrs
,
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)
46 int module_finalize(const Elf_Ehdr
*hdr
,
47 const Elf_Shdr
*sechdrs
, struct module
*me
)
52 rc
= module_finalize_ftrace(me
, sechdrs
);
56 /* Apply feature fixups */
57 sect
= find_section(hdr
, sechdrs
, "__ftr_fixup");
59 do_feature_fixups(cur_cpu_spec
->cpu_features
,
60 (void *)sect
->sh_addr
,
61 (void *)sect
->sh_addr
+ sect
->sh_size
);
63 sect
= find_section(hdr
, sechdrs
, "__mmu_ftr_fixup");
65 do_feature_fixups(cur_cpu_spec
->mmu_features
,
66 (void *)sect
->sh_addr
,
67 (void *)sect
->sh_addr
+ sect
->sh_size
);
70 sect
= find_section(hdr
, sechdrs
, "__fw_ftr_fixup");
72 do_feature_fixups(powerpc_firmware_features
,
73 (void *)sect
->sh_addr
,
74 (void *)sect
->sh_addr
+ sect
->sh_size
);
77 sect
= find_section(hdr
, sechdrs
, "__lwsync_fixup");
79 do_lwsync_fixups(cur_cpu_spec
->cpu_features
,
80 (void *)sect
->sh_addr
,
81 (void *)sect
->sh_addr
+ sect
->sh_size
);