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authorRoland McGrath <roland@gnu.org>1996-06-11 21:07:00 +0000
committerRoland McGrath <roland@gnu.org>1996-06-11 21:07:00 +0000
commit852fc4b91e0c657e02c7d15bc24fbbae066ccae3 (patch)
tree16e0d249a0b7b0f6d47a410cdfdfe890d7a898cb /sysdeps/i386/dl-machine.h
parent6ba35316626b0aec32d29b7307965de4f4bb59fb (diff)
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* elf/Makefile ($(objpfx)$(rtld-installed-name)): New target to make
link to ld.so if that is not the installed name. (lib-noranlib): Depend on the installed name in the build directory instead of on ld.so. * Makeconfig (link-libc): Include $(elfobjdir)/$(rtld-installed-name) between libc.so and libc.a, because with libc.so's DT_NEEDED for ld.so ld searches libc.a before ld.so (is that an ld bug?). Add $(elfobjdir) to -rpath-link. * Makerules (elfobjdir): Define as . when $(subdir) is elf. * sysdeps/i386/dl-machine.h (elf_machine_rel): In R_386_32 case when relocating _dl_rtld_map, subtract SYM's value from final reloc value, but don't change *RELOC_ADDR before calling *RESOLVE, because it might call the function we are relocating!
Diffstat (limited to 'sysdeps/i386/dl-machine.h')
-rw-r--r--sysdeps/i386/dl-machine.h21
1 files changed, 9 insertions, 12 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index bcd388fd20..a718792e0a 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -79,7 +79,7 @@ elf_machine_rel (struct link_map *map,
int noplt))
{
Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
- Elf32_Addr loadbase;
+ Elf32_Addr loadbase, undo;
switch (ELF32_R_TYPE (reloc->r_info))
{
@@ -101,20 +101,17 @@ elf_machine_rel (struct link_map *map,
break;
case R_386_32:
if (resolve && 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. */
- const Elf32_Sym *const dlsymtab
- = (void *) (map->l_addr + map->l_info[DT_SYMTAB]->d_un.d_ptr);
- *reloc_addr -= (map->l_addr +
- dlsymtab[ELF32_R_SYM (reloc->r_info)].st_value);
- }
+ /* 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. */
+ undo = map->l_addr + sym->st_value;
+ else
+ undo = 0;
loadbase = (resolve ? (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0) :
/* RESOLVE is null during bootstrap relocation. */
map->l_addr);
- *reloc_addr += sym ? (loadbase + sym->st_value) : 0;
+ *reloc_addr += (sym ? (loadbase + sym->st_value) : 0) - undo;
break;
case R_386_RELATIVE:
if (!resolve || map != &_dl_rtld_map) /* Already done in rtld itself. */