diff options
Diffstat (limited to 'elf/dynamic-link.h')
| -rw-r--r-- | elf/dynamic-link.h | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h index 63adfcb802..5bf3f6f0f6 100644 --- a/elf/dynamic-link.h +++ b/elf/dynamic-link.h @@ -56,7 +56,7 @@ elf_machine_lazy_rel (struct link_map *map, /* Read the dynamic section at DYN and fill in INFO with indices DT_*. */ static inline void __attribute__ ((unused, always_inline)) -elf_get_dynamic_info (struct link_map *l) +elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp) { ElfW(Dyn) *dyn = l->l_ld; ElfW(Dyn) **info; @@ -88,32 +88,45 @@ elf_get_dynamic_info (struct link_map *l) + DT_VERSIONTAGNUM + DT_EXTRANUM + DT_VALNUM] = dyn; ++dyn; } + +#define DL_RO_DYN_TEMP_CNT 8 + #ifndef DL_RO_DYN_SECTION /* Don't adjust .dynamic unnecessarily. */ if (l->l_addr != 0) { ElfW(Addr) l_addr = l->l_addr; + int cnt = 0; + +# define ADJUST_DYN_INFO(tag) \ + do \ + if (info[tag] != NULL) \ + { \ + if (temp) \ + { \ + temp[cnt].d_tag = info[tag]->d_tag; \ + temp[cnt].d_un.d_ptr = info[tag]->d_un.d_ptr + l_addr; \ + info[tag] = temp + cnt++; \ + } \ + else \ + info[tag]->d_un.d_ptr += l_addr; \ + } \ + while (0) - if (info[DT_HASH] != NULL) - info[DT_HASH]->d_un.d_ptr += l_addr; - if (info[DT_PLTGOT] != NULL) - info[DT_PLTGOT]->d_un.d_ptr += l_addr; - if (info[DT_STRTAB] != NULL) - info[DT_STRTAB]->d_un.d_ptr += l_addr; - if (info[DT_SYMTAB] != NULL) - info[DT_SYMTAB]->d_un.d_ptr += l_addr; + ADJUST_DYN_INFO (DT_HASH); + ADJUST_DYN_INFO (DT_PLTGOT); + ADJUST_DYN_INFO (DT_STRTAB); + ADJUST_DYN_INFO (DT_SYMTAB); # if ! ELF_MACHINE_NO_RELA - if (info[DT_RELA] != NULL) - info[DT_RELA]->d_un.d_ptr += l_addr; + ADJUST_DYN_INFO (DT_RELA); # endif # if ! ELF_MACHINE_NO_REL - if (info[DT_REL] != NULL) - info[DT_REL]->d_un.d_ptr += l_addr; + ADJUST_DYN_INFO (DT_REL); # endif - if (info[DT_JMPREL] != NULL) - info[DT_JMPREL]->d_un.d_ptr += l_addr; - if (info[VERSYMIDX (DT_VERSYM)] != NULL) - info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr += l_addr; + ADJUST_DYN_INFO (DT_JMPREL); + ADJUST_DYN_INFO (VERSYMIDX (DT_VERSYM)); +# undef ADJUST_DYN_INFO + assert (cnt <= DL_RO_DYN_TEMP_CNT); } #endif if (info[DT_PLTREL] != NULL) |