status_t
arch_relocate_image(image_t* rootImage, image_t* image,
SymbolLookupCache* cache)
{
status_t status;
// No REL on x86_64.
// Perform RELA relocations.
if (image->rela) {
status = relocate_rela(rootImage, image, image->rela, image->rela_len,
cache);
if (status != B_OK)
return status;
}
// PLT relocations (they are RELA on x86_64).
if (image->pltrel) {
status = relocate_rela(rootImage, image, (Elf64_Rela*)image->pltrel,
image->pltrel_len, cache);
if (status != B_OK)
return status;
}
return B_OK;
}
status_t
arch_relocate_image(image_t *rootImage, image_t *image,
SymbolLookupCache* cache)
{
status_t status;
// deal with the rels first
if (image->rel) {
TRACE(("RELA relocations not supported\n"));
return EOPNOTSUPP;
}
if (image->pltrel) {
TRACE(("RELA relocations not supported\n"));
return EOPNOTSUPP;
#if 0
status = relocate_rel(rootImage, image, image->pltrel,
image->pltrel_len);
if (status < B_OK)
return status;
#endif
}
if (image->rela) {
status = relocate_rela(rootImage, image, image->rela, image->rela_len,
cache);
//int i;
if (status < B_OK)
return status;
//TRACE(("RELA relocations not supported\n"));
//return EOPNOTSUPP;
//for (i = 1; i * (int)sizeof(Elf32_Rela) < image->rela_len; i++) {
// printf("rela: type %d\n", ELF32_R_TYPE(image->rela[i].r_info));
//}
}
#if 0
if (image->pltrela) {
status = relocate_rela(rootImage, image, image->pltrela,
image->pltrela_len);
if (status < B_OK)
return status;
}
#endif
return B_OK;
}
static int
relocate_section_rela(Elf32_Sym *sym_table, Elf32_Rela *rela,
char *target_sect, int nr_reloc, char *strtab)
{
Elf32_Sym *sym;
Elf32_Addr sym_val;
int i;
for (i = 0; i < nr_reloc; i++) {
sym = &sym_table[ELF32_R_SYM(rela->r_info)];
ELFDBG(("%s\n", strtab + sym->st_name));
if (sym->st_shndx != STN_UNDEF) {
sym_val = (Elf32_Addr)sect_addr[sym->st_shndx]
+ sym->st_value;
if (relocate_rela(rela, sym_val, target_sect) != 0)
return -1;
} else if (ELF32_ST_BIND(sym->st_info) != STB_WEAK) {
DPRINTF(("Undefined symbol for rela[%x] sym=%lx\n",
i, (long)sym));
return -1;
} else {
DPRINTF(("Undefined weak symbol for rela[%x]\n", i));
}
rela++;
}
return 0;
}
