diff options
Diffstat (limited to 'scripts/mod/modpost.c')
| -rw-r--r-- | scripts/mod/modpost.c | 88 |
1 files changed, 69 insertions, 19 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 6d04504b2fc1..d0f86ed43f7a 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c | |||
| @@ -697,29 +697,79 @@ static void check_sec_ref(struct module *mod, const char *modname, | |||
| 697 | 697 | ||
| 698 | /* Walk through all sections */ | 698 | /* Walk through all sections */ |
| 699 | for (i = 0; i < hdr->e_shnum; i++) { | 699 | for (i = 0; i < hdr->e_shnum; i++) { |
| 700 | Elf_Rela *rela; | 700 | const char *name = secstrings + sechdrs[i].sh_name; |
| 701 | Elf_Rela *start = (void *)hdr + sechdrs[i].sh_offset; | 701 | const char *secname; |
| 702 | Elf_Rela *stop = (void*)start + sechdrs[i].sh_size; | 702 | Elf_Rela r; |
| 703 | const char *name = secstrings + sechdrs[i].sh_name + | 703 | unsigned int r_sym; |
| 704 | strlen(".rela"); | ||
| 705 | /* We want to process only relocation sections and not .init */ | 704 | /* We want to process only relocation sections and not .init */ |
| 706 | if (section_ref_ok(name) || (sechdrs[i].sh_type != SHT_RELA)) | 705 | if (sechdrs[i].sh_type == SHT_RELA) { |
| 707 | continue; | 706 | Elf_Rela *rela; |
| 707 | Elf_Rela *start = (void *)hdr + sechdrs[i].sh_offset; | ||
| 708 | Elf_Rela *stop = (void*)start + sechdrs[i].sh_size; | ||
| 709 | name += strlen(".rela"); | ||
| 710 | if (section_ref_ok(name)) | ||
| 711 | continue; | ||
| 708 | 712 | ||
| 709 | for (rela = start; rela < stop; rela++) { | 713 | for (rela = start; rela < stop; rela++) { |
| 710 | Elf_Rela r; | 714 | r.r_offset = TO_NATIVE(rela->r_offset); |
| 711 | const char *secname; | 715 | #if KERNEL_ELFCLASS == ELFCLASS64 |
| 712 | r.r_offset = TO_NATIVE(rela->r_offset); | 716 | if (hdr->e_machine == EM_MIPS) { |
| 713 | r.r_info = TO_NATIVE(rela->r_info); | 717 | r_sym = ELF64_MIPS_R_SYM(rela->r_info); |
| 714 | r.r_addend = TO_NATIVE(rela->r_addend); | 718 | r_sym = TO_NATIVE(r_sym); |
| 715 | sym = elf->symtab_start + ELF_R_SYM(r.r_info); | 719 | } else { |
| 716 | /* Skip special sections */ | 720 | r.r_info = TO_NATIVE(rela->r_info); |
| 717 | if (sym->st_shndx >= SHN_LORESERVE) | 721 | r_sym = ELF_R_SYM(r.r_info); |
| 722 | } | ||
| 723 | #else | ||
| 724 | r.r_info = TO_NATIVE(rela->r_info); | ||
| 725 | r_sym = ELF_R_SYM(r.r_info); | ||
| 726 | #endif | ||
| 727 | r.r_addend = TO_NATIVE(rela->r_addend); | ||
| 728 | sym = elf->symtab_start + r_sym; | ||
| 729 | /* Skip special sections */ | ||
| 730 | if (sym->st_shndx >= SHN_LORESERVE) | ||
| 731 | continue; | ||
| 732 | |||
| 733 | secname = secstrings + | ||
| 734 | sechdrs[sym->st_shndx].sh_name; | ||
| 735 | if (section(secname)) | ||
| 736 | warn_sec_mismatch(modname, name, | ||
| 737 | elf, sym, r); | ||
| 738 | } | ||
| 739 | } else if (sechdrs[i].sh_type == SHT_REL) { | ||
| 740 | Elf_Rel *rel; | ||
| 741 | Elf_Rel *start = (void *)hdr + sechdrs[i].sh_offset; | ||
| 742 | Elf_Rel *stop = (void*)start + sechdrs[i].sh_size; | ||
| 743 | name += strlen(".rel"); | ||
| 744 | if (section_ref_ok(name)) | ||
| 718 | continue; | 745 | continue; |
| 719 | 746 | ||
| 720 | secname = secstrings + sechdrs[sym->st_shndx].sh_name; | 747 | for (rel = start; rel < stop; rel++) { |
| 721 | if (section(secname)) | 748 | r.r_offset = TO_NATIVE(rel->r_offset); |
| 722 | warn_sec_mismatch(modname, name, elf, sym, r); | 749 | #if KERNEL_ELFCLASS == ELFCLASS64 |
| 750 | if (hdr->e_machine == EM_MIPS) { | ||
| 751 | r_sym = ELF64_MIPS_R_SYM(rel->r_info); | ||
| 752 | r_sym = TO_NATIVE(r_sym); | ||
| 753 | } else { | ||
| 754 | r.r_info = TO_NATIVE(rel->r_info); | ||
| 755 | r_sym = ELF_R_SYM(r.r_info); | ||
| 756 | } | ||
| 757 | #else | ||
| 758 | r.r_info = TO_NATIVE(rel->r_info); | ||
| 759 | r_sym = ELF_R_SYM(r.r_info); | ||
| 760 | #endif | ||
| 761 | r.r_addend = 0; | ||
| 762 | sym = elf->symtab_start + r_sym; | ||
| 763 | /* Skip special sections */ | ||
| 764 | if (sym->st_shndx >= SHN_LORESERVE) | ||
| 765 | continue; | ||
| 766 | |||
| 767 | secname = secstrings + | ||
| 768 | sechdrs[sym->st_shndx].sh_name; | ||
| 769 | if (section(secname)) | ||
| 770 | warn_sec_mismatch(modname, name, | ||
| 771 | elf, sym, r); | ||
| 772 | } | ||
| 723 | } | 773 | } |
| 724 | } | 774 | } |
| 725 | } | 775 | } |
