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-rw-r--r--scripts/mod/modpost.c94
1 files changed, 72 insertions, 22 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index cd00e9f..d0f86ed 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -487,14 +487,14 @@ static int strrcmp(const char *s, const char *sub)
* atsym =__param*
*
* Pattern 2:
- * Many drivers utilise a *_driver container with references to
+ * Many drivers utilise a *driver container with references to
* add, remove, probe functions etc.
* These functions may often be marked __init and we do not want to
* warn here.
* the pattern is identified by:
* tosec = .init.text | .exit.text | .init.data
* fromsec = .data
- * atsym = *_driver, *_template, *_sht, *_ops, *_probe, *probe_one
+ * atsym = *driver, *_template, *_sht, *_ops, *_probe, *probe_one
**/
static int secref_whitelist(const char *tosec, const char *fromsec,
const char *atsym)
@@ -502,7 +502,7 @@ static int secref_whitelist(const char *tosec, const char *fromsec,
int f1 = 1, f2 = 1;
const char **s;
const char *pat2sym[] = {
- "_driver",
+ "driver",
"_template", /* scsi uses *_template a lot */
"_sht", /* scsi also used *_sht to some extent */
"_ops",
@@ -697,29 +697,79 @@ static void check_sec_ref(struct module *mod, const char *modname,
/* Walk through all sections */
for (i = 0; i < hdr->e_shnum; i++) {
- Elf_Rela *rela;
- Elf_Rela *start = (void *)hdr + sechdrs[i].sh_offset;
- Elf_Rela *stop = (void*)start + sechdrs[i].sh_size;
- const char *name = secstrings + sechdrs[i].sh_name +
- strlen(".rela");
+ const char *name = secstrings + sechdrs[i].sh_name;
+ const char *secname;
+ Elf_Rela r;
+ unsigned int r_sym;
/* We want to process only relocation sections and not .init */
- if (section_ref_ok(name) || (sechdrs[i].sh_type != SHT_RELA))
- continue;
+ if (sechdrs[i].sh_type == SHT_RELA) {
+ Elf_Rela *rela;
+ Elf_Rela *start = (void *)hdr + sechdrs[i].sh_offset;
+ Elf_Rela *stop = (void*)start + sechdrs[i].sh_size;
+ name += strlen(".rela");
+ if (section_ref_ok(name))
+ continue;
- for (rela = start; rela < stop; rela++) {
- Elf_Rela r;
- const char *secname;
- r.r_offset = TO_NATIVE(rela->r_offset);
- r.r_info = TO_NATIVE(rela->r_info);
- r.r_addend = TO_NATIVE(rela->r_addend);
- sym = elf->symtab_start + ELF_R_SYM(r.r_info);
- /* Skip special sections */
- if (sym->st_shndx >= SHN_LORESERVE)
+ for (rela = start; rela < stop; rela++) {
+ r.r_offset = TO_NATIVE(rela->r_offset);
+#if KERNEL_ELFCLASS == ELFCLASS64
+ if (hdr->e_machine == EM_MIPS) {
+ r_sym = ELF64_MIPS_R_SYM(rela->r_info);
+ r_sym = TO_NATIVE(r_sym);
+ } else {
+ r.r_info = TO_NATIVE(rela->r_info);
+ r_sym = ELF_R_SYM(r.r_info);
+ }
+#else
+ r.r_info = TO_NATIVE(rela->r_info);
+ r_sym = ELF_R_SYM(r.r_info);
+#endif
+ r.r_addend = TO_NATIVE(rela->r_addend);
+ sym = elf->symtab_start + r_sym;
+ /* Skip special sections */
+ if (sym->st_shndx >= SHN_LORESERVE)
+ continue;
+
+ secname = secstrings +
+ sechdrs[sym->st_shndx].sh_name;
+ if (section(secname))
+ warn_sec_mismatch(modname, name,
+ elf, sym, r);
+ }
+ } else if (sechdrs[i].sh_type == SHT_REL) {
+ Elf_Rel *rel;
+ Elf_Rel *start = (void *)hdr + sechdrs[i].sh_offset;
+ Elf_Rel *stop = (void*)start + sechdrs[i].sh_size;
+ name += strlen(".rel");
+ if (section_ref_ok(name))
continue;
- secname = secstrings + sechdrs[sym->st_shndx].sh_name;
- if (section(secname))
- warn_sec_mismatch(modname, name, elf, sym, r);
+ for (rel = start; rel < stop; rel++) {
+ r.r_offset = TO_NATIVE(rel->r_offset);
+#if KERNEL_ELFCLASS == ELFCLASS64
+ if (hdr->e_machine == EM_MIPS) {
+ r_sym = ELF64_MIPS_R_SYM(rel->r_info);
+ r_sym = TO_NATIVE(r_sym);
+ } else {
+ r.r_info = TO_NATIVE(rel->r_info);
+ r_sym = ELF_R_SYM(r.r_info);
+ }
+#else
+ r.r_info = TO_NATIVE(rel->r_info);
+ r_sym = ELF_R_SYM(r.r_info);
+#endif
+ r.r_addend = 0;
+ sym = elf->symtab_start + r_sym;
+ /* Skip special sections */
+ if (sym->st_shndx >= SHN_LORESERVE)
+ continue;
+
+ secname = secstrings +
+ sechdrs[sym->st_shndx].sh_name;
+ if (section(secname))
+ warn_sec_mismatch(modname, name,
+ elf, sym, r);
+ }
}
}
}
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