diff options
Diffstat (limited to 'sysdeps/i386/dl-machine.h')
| -rw-r--r-- | sysdeps/i386/dl-machine.h | 49 |
1 files changed, 22 insertions, 27 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index 1f787a5319..61b419c091 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -312,6 +312,13 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, if (ELF32_R_TYPE (reloc->r_info) == R_386_RELATIVE) { #ifndef RTLD_BOOTSTRAP + /* This is defined in rtld.c, but nowhere in the static libc.a; + make the reference weak so static programs can still link. + This declaration cannot be done when compiling rtld.c + (i.e. #ifdef RTLD_BOOTSTRAP) because rtld.c contains the + common defn for _dl_rtld_map, which is incompatible with a + weak decl in the same file. */ + weak_extern (_dl_rtld_map); if (map != &_dl_rtld_map) /* Already done in rtld itself. */ #endif *reloc_addr += map->l_addr; @@ -325,6 +332,17 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, switch (ELF32_R_TYPE (reloc->r_info)) { + case R_386_GLOB_DAT: + case R_386_JMP_SLOT: + *reloc_addr = value; + break; +#ifndef RTLD_BOOTSTRAP + case R_386_32: + *reloc_addr += value; + break; + case R_386_PC32: + *reloc_addr += (value - (Elf32_Addr) reloc_addr); + break; case R_386_COPY: if (sym == NULL) /* This can happen in trace mode if an object could not be @@ -345,37 +363,14 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, memcpy (reloc_addr, (void *) value, MIN (sym->st_size, refsym->st_size)); break; - case R_386_GLOB_DAT: - case R_386_JMP_SLOT: - *reloc_addr = value; - break; - case R_386_32: - { -#ifndef RTLD_BOOTSTRAP - /* This is defined in rtld.c, but nowhere in the static - libc.a; make the reference weak so static programs can - still link. This declaration cannot be done when - compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) because - rtld.c contains the common defn for _dl_rtld_map, which - is incompatible with a weak decl in the same file. */ - weak_extern (_dl_rtld_map); - if (map == &_dl_rtld_map) - /* Undo the relocation done here during bootstrapping. - Now we will relocate it anew, possibly using a - binding found in the user program or a loaded library - rather than the dynamic linker's built-in definitions - used while loading those libraries. */ - value -= map->l_addr + refsym->st_value; #endif - *reloc_addr += value; - break; - } - case R_386_PC32: - *reloc_addr += (value - (Elf32_Addr) reloc_addr); - break; +#if !defined RTLD_BOOTSTRAP || defined _NDEBUG default: + /* We add these checks in the version to relocate ld.so only + if we are still debugging. */ _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 0); break; +#endif } } } |