* 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
+ * tosec = .init.text | .exit.text | .init.data
* fromsec = .data
- * atsym = *_driver, *_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)
+ const char *atsym)
{
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",
"_probe",
"_probe_one",
/* Check for pattern 2 */
if ((strcmp(tosec, ".init.text") != 0) &&
- (strcmp(tosec, ".exit.text") != 0))
+ (strcmp(tosec, ".exit.text") != 0) &&
+ (strcmp(tosec, ".init.data") != 0))
f2 = 0;
if (strcmp(fromsec, ".data") != 0)
f2 = 0;
warn("%s - Section mismatch: reference to %s:%s from %s "
"before '%s' (at offset -0x%llx)\n",
modname, secname, refsymname, fromsec,
- elf->strtab + before->st_name,
+ elf->strtab + after->st_name,
(long long)r.r_offset);
} else {
warn("%s - Section mismatch: reference to %s:%s from %s "
/* 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);
+ }
}
}
}
* For our future {in}sanity, add a comment that this is the ppc .opd
* section, not the ia64 .opd section.
* ia64 .opd should not point to discarded sections.
+ * [.rodata] like for .init.text we ignore .rodata references -same reason
**/
static int exit_section_ref_ok(const char *name)
{
".exit.text",
".exit.data",
".init.text",
+ ".rodata",
".opd", /* See comment [OPD] */
".toc1", /* used by ppc64 */
".altinstructions",
git.openpandora.org / pandora-kernel.git / blobdiff