diff options
author | Masahiro Yamada <masahiroy@kernel.org> | 2023-05-14 18:27:22 +0300 |
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committer | Masahiro Yamada <masahiroy@kernel.org> | 2023-05-22 04:34:38 +0300 |
commit | faee9defd8fc376864efb39b87d59f667deeb488 (patch) | |
tree | 382c3425adcfe2ac81d8347d2cf362094a5016b7 /scripts/mod/modpost.c | |
parent | 6691e6f5fc3e9fa76c9a50970fa851829df7d9f2 (diff) | |
download | linux-faee9defd8fc376864efb39b87d59f667deeb488.tar.xz |
modpost: squash report_extable_warnings() into extable_mismatch_handler()
Collect relevant code into one place to clarify all the cases are
covered by 'if () ... else if ... else ...'.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Diffstat (limited to 'scripts/mod/modpost.c')
-rw-r--r-- | scripts/mod/modpost.c | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 371891d67175..7a9a3ef8ca0d 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1275,40 +1275,19 @@ static int is_executable_section(struct elf_info* elf, unsigned int section_inde return ((elf->sechdrs[section_index].sh_flags & SHF_EXECINSTR) == SHF_EXECINSTR); } -static void report_extable_warnings(const char* modname, struct elf_info* elf, - const struct sectioncheck* const mismatch, - Elf_Rela* r, Elf_Sym* sym, - const char* fromsec, const char* tosec) -{ - Elf_Sym* tosym = find_elf_symbol(elf, r->r_addend, sym); - const char* tosym_name = sym_name(elf, tosym); - - warn("%s(%s+0x%lx): Section mismatch in reference to the %s:%s\n", - modname, fromsec, (long)r->r_offset, tosec, tosym_name); - - if (!match(tosec, mismatch->bad_tosec) && - is_executable_section(elf, get_secindex(elf, sym))) - fprintf(stderr, - "The relocation at %s+0x%lx references\n" - "section \"%s\" which is not in the list of\n" - "authorized sections. If you're adding a new section\n" - "and/or if this reference is valid, add \"%s\" to the\n" - "list of authorized sections to jump to on fault.\n" - "This can be achieved by adding \"%s\" to \n" - "OTHER_TEXT_SECTIONS in scripts/mod/modpost.c.\n", - fromsec, (long)r->r_offset, tosec, tosec, tosec); -} - static void extable_mismatch_handler(const char* modname, struct elf_info *elf, const struct sectioncheck* const mismatch, Elf_Rela* r, Elf_Sym* sym, const char *fromsec) { const char* tosec = sec_name(elf, get_secindex(elf, sym)); + Elf_Sym *tosym = find_elf_symbol(elf, r->r_addend, sym); + const char *tosym_name = sym_name(elf, tosym); sec_mismatch_count++; - report_extable_warnings(modname, elf, mismatch, r, sym, fromsec, tosec); + warn("%s(%s+0x%lx): Section mismatch in reference to the %s:%s\n", + modname, fromsec, (long)r->r_offset, tosec, tosym_name); if (match(tosec, mismatch->bad_tosec)) fatal("The relocation at %s+0x%lx references\n" @@ -1317,7 +1296,16 @@ static void extable_mismatch_handler(const char* modname, struct elf_info *elf, "You might get more information about where this is\n" "coming from by using scripts/check_extable.sh %s\n", fromsec, (long)r->r_offset, tosec, modname); - else if (!is_executable_section(elf, get_secindex(elf, sym))) + else if (is_executable_section(elf, get_secindex(elf, sym))) + warn("The relocation at %s+0x%lx references\n" + "section \"%s\" which is not in the list of\n" + "authorized sections. If you're adding a new section\n" + "and/or if this reference is valid, add \"%s\" to the\n" + "list of authorized sections to jump to on fault.\n" + "This can be achieved by adding \"%s\" to\n" + "OTHER_TEXT_SECTIONS in scripts/mod/modpost.c.\n", + fromsec, (long)r->r_offset, tosec, tosec, tosec); + else error("%s+0x%lx references non-executable section '%s'\n", fromsec, (long)r->r_offset, tosec); } |