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Mon Jun 3 03:06:34 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

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* elf/dl-lookup.c (_dl_lookup_symbol): Take new arg RELOC_ADDR and
	don't allow a defn resolving to that address.
	* elf/link.h: Update prototype and comment.
	* elf/dl-runtime.c (fixup): Define local `resolve' function and pass
	it to elf_machine_relplt.
	* elf/dl-reloc.c (_dl_relocate_object: resolve): Take new arg
	RELOC_ADDR and pass it through to _dl_lookup_symbol.
	* elf/do-rel.h (elf_dynamic_do_rel): Pass RESOLVE to elf_machine_rel
	instead of calling it ourselves and passing its results.
	(elf_dynamic_do_rel): RESOLVE fn takes new arg RELOC_ADDR.
	* elf/rtld.c (dl_main): Pass 0 for RELOC_ADDR to _dl_lookup_symbol.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Remove SYM_LOADADDR
	arg.  Add RESOLVE function ptr arg.  Call *RESOLVE as necessary.
	* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/stub/dl-machine.h: Likewise.
Sun Jun  2 14:56:49 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* elf/dl-lookup.c (_dl_lookup_symbol): Arg NOSELF renamed to NOPLT.
	Reject SHN_UNDEF defns iff NOPLT is nonzero.
	* elf/link.h (_dl_lookup_symbol): Update prototype and comment.
	* elf/dl-runtime.c (fixup): Pass 1 to _dl_lookup_symbol for NOPLT.
	* elf/dlsym.c (dlsym): Pass 0.
	* elf/rtld.c (dl_main): Likewise.
	* elf/dl-reloc.c (_dl_relocate_object: resolve): Second arg R_OFFSET
	replaced with NOPLT flag.  Pass it through to _dl_lookup_symbol.
	* elf/do-rel.h (elf_dynamic_do_rel): Update prototype of RESOLVE arg.
	Pass `elf_machine_pltrel_p (R->r_type)' result as NOPLT flag value.
	* sysdeps/i386/dl-machine.h (elf_machine_pltrel_p): New macro.
	* sysdeps/m68k/dl-machine.h (elf_machine_pltrel_p): Likewise.
	* sysdeps/stub/dl-machine.h (elf_machine_pltrel_p): Likewise.
This commit is contained in:
Roland McGrath 1996-06-03 04:24:14 +00:00
parent 03e81891af
commit 43e2c3421f
1 changed files with 35 additions and 11 deletions
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46
sysdeps/m68k/dl-machine.h
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@ -73,43 +73,67 @@ elf_machine_load_address (void)
static inline void
elf_machine_rela (struct link_map *map,
const Elf32_Rela *reloc,
Elf32_Addr sym_loadaddr, const Elf32_Sym *sym)
const Elf32_Rel *reloc, const Elf32_Sym *sym,
Elf32_Addr (*resolve) (const Elf32_Sym **ref,
Elf32_Addr reloc_addr,
int noplt))
{
Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
const Elf32_Addr sym_value = sym ? sym_loadaddr + sym->st_value : 0;
Elf32_Addr loadbase;
switch (ELF32_R_TYPE (reloc->r_info))
{
case R_68K_COPY:
memcpy (reloc_addr, (void *) sym_value, sym->st_size);
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
break;
case R_68K_GLOB_DAT:
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;
break;
case R_68K_JMP_SLOT:
*reloc_addr = sym_value;
loadbase = (resolve ? (*resolve) (&sym, (Elf32_Addr) reloc_addr, 1) :
/* RESOLVE is null during bootstrap relocation. */
map->l_addr);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_68K_8:
*(char *) reloc_addr = sym_value + reloc->r_addend;
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_16:
*(short *) reloc_addr = sym_value + reloc->r_addend;
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_32:
*reloc_addr = sym_value + reloc->r_addend;
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 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:
*(char *) reloc_addr = (sym_value + reloc->r_addend
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend
- (Elf32_Addr) reloc_addr);
break;
case R_68K_PC16:
*(short *) reloc_addr = (sym_value + reloc->r_addend
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend
- (Elf32_Addr) reloc_addr);
break;
case R_68K_PC32:
*reloc_addr = sym_value + reloc->r_addend - (Elf32_Addr) reloc_addr;
loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
*reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend
- (Elf32_Addr) reloc_addr);
break;
case R_68K_NONE: /* Alright, Wilbur. */
break;