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* sysdeps/i386/dl-machine.h (elf_machine_rel): For the version to
	relocate ld.so don't add supprt for relocations which should not
	appear in ld.so.
This commit is contained in:
Ulrich Drepper 2000-08-31 08:28:44 +00:00
parent fbcc0996a8
commit a778db0624
2 changed files with 26 additions and 27 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2000-08-31 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/dl-machine.h (elf_machine_rel): For the version to
relocate ld.so don't add supprt for relocations which should not
appear in ld.so.
* malloc/malloc.c (ptmalloc_init): Optimize a bit by not calling
__secure_getenv. Instead test __libc_enable_secure once.

49
sysdeps/i386/dl-machine.h
View File

@ -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
}
}
}