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(elf_machine_rela): Rewritten as for i386.

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(elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p,
ELF_MACHINE_RELOC_NOPLT): Define.
This commit is contained in:
Ulrich Drepper 1997-03-27 01:57:11 +00:00
parent d42c91d9d2
commit fea9a86a67
1 changed files with 50 additions and 53 deletions
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103
sysdeps/m68k/dl-machine.h
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@ -184,9 +184,16 @@ _dl_start_user:
| Jump to the user's entry point.
jmp (%a4)");
/* Nonzero iff TYPE describes a relocation that should
skip the executable when looking up the symbol value. */
#define elf_machine_lookup_noexec_p(type) ((type) == R_68K_COPY)
/* Nonzero iff TYPE describes relocation of a PLT entry, so
PLT entries should not be allowed to define the value. */
#define elf_machine_pltrel_p(type) ((type) == R_68K_JMP_SLOT)
#define elf_machine_lookup_noplt_p(type) ((type) == R_68K_JMP_SLOT)
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
#define ELF_MACHINE_RELOC_NOPLT R_68K_JMP_SLOT
/* The m68k never uses Elf32_Rel relocations. */
#define ELF_MACHINE_NO_REL 1
@ -203,60 +210,50 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *sym, const struct r_found_version *version)
{
Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
Elf32_Addr loadbase;
switch (ELF32_R_TYPE (reloc->r_info))
if (ELF32_R_TYPE (reloc->r_info) == R_68K_RELATIVE)
*reloc_addr = map->l_addr + reloc->r_addend;
else
{
case R_68K_COPY:
loadbase = RESOLVE (&sym, version, DL_LOOKUP_NOEXEC);
memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
break;
case R_68K_GLOB_DAT:
loadbase = RESOLVE (&sym, version, 0);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_68K_JMP_SLOT:
loadbase = RESOLVE (&sym, version, DL_LOOKUP_NOPLT);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_68K_8:
loadbase = RESOLVE (&sym, version, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_16:
loadbase = RESOLVE (&sym, version, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_32:
loadbase = RESOLVE (&sym, version, 0);
*reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_RELATIVE:
*reloc_addr = map->l_addr + reloc->r_addend;
break;
case R_68K_PC8:
loadbase = RESOLVE (&sym, version, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
case R_68K_PC16:
loadbase = RESOLVE (&sym, version, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
case R_68K_PC32:
loadbase = RESOLVE (&sym, version, 0);
*reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
case R_68K_NONE: /* Alright, Wilbur. */
break;
default:
assert (! "unexpected dynamic reloc type");
break;
Elf32_Addr value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
if (sym)
value += sym->st_value;
switch (ELF32_R_TYPE (reloc->r_info))
{
case R_68K_COPY:
memcpy (reloc_addr, (void *) value, sym->st_size);
break;
case R_68K_GLOB_DAT:
case R_68K_JMP_SLOT:
*reloc_addr = value;
break;
case R_68K_8:
*(char *) reloc_addr = value + reloc->r_addend;
break;
case R_68K_16:
*(short *) reloc_addr = value + reloc->r_addend;
break;
case R_68K_32:
*reloc_addr = value + reloc->r_addend;
break;
case R_68K_PC8:
*(char *) reloc_addr
= value + reloc->r_addend - (Elf32_Addr) reloc_addr;
break;
case R_68K_PC16:
*(short *) reloc_addr
= value + reloc->r_addend - (Elf32_Addr) reloc_addr;
break;
case R_68K_PC32:
*reloc_addr = value + reloc->r_addend - (Elf32_Addr) reloc_addr;
break;
case R_68K_NONE: /* Alright, Wilbur. */
break;
default:
assert (! "unexpected dynamic reloc type");
break;
}
}
}