projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f0c426bc KG |
1 | /* Kernel module help for powerpc. |
| 2 | Copyright (C) 2001, 2003 Rusty Russell IBM Corporation. | |
| 3 | Copyright (C) 2008 Freescale Semiconductor, Inc. | |
| 4 | ||
| 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. | |
| 9 | ||
| 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. | |
| 14 | ||
| 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 | |
| 18 | */ | |
| f0c426bc KG |
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 | ||
| 29 | #include "setup.h" | |
| 30 | ||
| 31 | LIST_HEAD(module_bug_list); | |
| 32 | ||
| f0c426bc KG |
33 | static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, |
| 34 | const Elf_Shdr *sechdrs, | |
| 35 | const char *name) | |
| 36 | { | |
| 37 | char *secstrings; | |
| 38 | unsigned int i; | |
| 39 | ||
| 40 | secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; | |
| 41 | for (i = 1; i < hdr->e_shnum; i++) | |
| 42 | if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0) | |
| 43 | return &sechdrs[i]; | |
| 44 | return NULL; | |
| 45 | } | |
| 46 | ||
| 47 | int module_finalize(const Elf_Ehdr *hdr, | |
| 48 | const Elf_Shdr *sechdrs, struct module *me) | |
| 49 | { | |
| 50 | const Elf_Shdr *sect; | |
| f0c426bc | 51 | |
| f0c426bc KG |
52 | /* Apply feature fixups */ |
| 53 | sect = find_section(hdr, sechdrs, "__ftr_fixup"); | |
| 54 | if (sect != NULL) | |
| 55 | do_feature_fixups(cur_cpu_spec->cpu_features, | |
| 56 | (void *)sect->sh_addr, | |
| 57 | (void *)sect->sh_addr + sect->sh_size); | |
| 58 | ||
| 7c03d653 BH |
59 | sect = find_section(hdr, sechdrs, "__mmu_ftr_fixup"); |
| 60 | if (sect != NULL) | |
| 61 | do_feature_fixups(cur_cpu_spec->mmu_features, | |
| 62 | (void *)sect->sh_addr, | |
| 63 | (void *)sect->sh_addr + sect->sh_size); | |
| 64 | ||
| f0c426bc KG |
65 | #ifdef CONFIG_PPC64 |
| 66 | sect = find_section(hdr, sechdrs, "__fw_ftr_fixup"); | |
| 67 | if (sect != NULL) | |
| 68 | do_feature_fixups(powerpc_firmware_features, | |
| 69 | (void *)sect->sh_addr, | |
| 70 | (void *)sect->sh_addr + sect->sh_size); | |
| 71 | #endif | |
| 72 | ||
| 2d1b2027 KG |
73 | sect = find_section(hdr, sechdrs, "__lwsync_fixup"); |
| 74 | if (sect != NULL) | |
| 75 | do_lwsync_fixups(cur_cpu_spec->cpu_features, | |
| 76 | (void *)sect->sh_addr, | |
| 77 | (void *)sect->sh_addr + sect->sh_size); | |
| 78 | ||
| f0c426bc KG |
79 | return 0; |
| 80 | } |