diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | NEWS | 4 | ||||
| -rw-r--r-- | sysdeps/arm/dl-machine.h | 34 |
3 files changed, 40 insertions, 5 deletions
@@ -1,3 +1,10 @@ +2014-07-17 Maciej W. Rozycki <macro@codesourcery.com> + + [BZ #17078] + * sysdeps/arm/dl-machine.h (elf_machine_rela) + [RESOLVE_CONFLICT_FIND_MAP]: Handle R_ARM_TLS_DESC relocation. + (elf_machine_lazy_rel): Handle prelinked R_ARM_TLS_DESC entries. + 2014-07-17 Joseph Myers <joseph@codesourcery.com> [BZ #17088] @@ -21,8 +21,8 @@ Version 2.20 16882, 16885, 16888, 16890, 16912, 16915, 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965, 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031, 17042, 17048, 17050, 17058, - 17061, 17062, 17069, 17075, 17079, 17084, 17086, 17088, 17092, 17097, - 17125, 17135, 17137, 17153. + 17061, 17062, 17069, 17075, 17078, 17079, 17084, 17086, 17088, 17092, + 17097, 17125, 17135, 17137, 17153. * Optimized strchr implementation for AArch64. Contributed by ARM Ltd. diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h index d6b0c5210e..31a92513ea 100644 --- a/sysdeps/arm/dl-machine.h +++ b/sysdeps/arm/dl-machine.h @@ -574,6 +574,32 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc, case R_ARM_ABS32: *reloc_addr = value + reloc->r_addend; break; +# ifdef RESOLVE_CONFLICT_FIND_MAP + case R_ARM_TLS_DESC: + { + struct tlsdesc volatile *td = + (struct tlsdesc volatile *) reloc_addr; + + RESOLVE_CONFLICT_FIND_MAP (map, reloc_addr); + + /* Make sure we know what's going on. */ + assert (td->entry + == (void *) (D_PTR (map, l_info[ADDRIDX (DT_TLSDESC_PLT)]) + + map->l_addr)); + assert (map->l_info[ADDRIDX (DT_TLSDESC_GOT)]); + + /* Set up the lazy resolver and store the pointer to our link + map in _GLOBAL_OFFSET_TABLE[1] now as for a prelinked + binary elf_machine_runtime_setup() is not called and hence + neither has been initialized. */ + *(Elf32_Addr *) (D_PTR (map, l_info[ADDRIDX (DT_TLSDESC_GOT)]) + + map->l_addr) + = (Elf32_Addr) &_dl_tlsdesc_lazy_resolver; + ((Elf32_Addr *) D_PTR (map, l_info[DT_PLTGOT]))[1] + = (Elf32_Addr) map; + } + break; +# endif /* RESOLVE_CONFLICT_FIND_MAP */ case R_ARM_PC24: relocate_pc24 (map, value, reloc_addr, reloc->r_addend); break; @@ -653,9 +679,11 @@ elf_machine_lazy_rel (struct link_map *map, (struct tlsdesc volatile *)reloc_addr; /* The linker must have given us the parameter we need in the - first GOT entry, and left the second one empty. We fill the - last with the resolver address */ - assert (td->entry == 0); + first GOT entry, and left the second one empty. The latter + will have been preset by the prelinker if used though. + We fill it with the resolver address. */ + assert (td->entry == 0 + || map->l_info[VALIDX (DT_GNU_PRELINKED)] != NULL); td->entry = (void*)(D_PTR (map, l_info[ADDRIDX (DT_TLSDESC_PLT)]) + map->l_addr); } |