Mon Jun 3 00:30:35 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> cvs/libc-960603

	* 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.

	* csu/initfini.c (_fini): Add extern decl for i_am_not_a_leaf.

	* elf/dlfcn.h (dl_open_mode): Enumerated type removed.
	(RTLD_LAZY, RTLD_NOW): Define these as macros instead.
	(RTLD_GLOBAL): New macro.
	(dlopen): Take arg of type int instead of dl_open_mode.
	* elf/dlopen.c: Likewise.

	* math/math.h (_Mldbl): New macro, either produces L suffix or not.
	(M_*): Use it for these constants.

1 files changed, 5 insertions, 2 deletions

diff --git a/elf/link.h b/elf/link.h
index cd75263e0a..a19a2ce0b3 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -185,12 +185,15 @@ extern void _dl_setup_hash (struct link_map *map);
    reference; it is replaced with the defining symbol, and the base load
    address of the defining object is returned.  SYMBOL_SCOPE is the head of
    the chain used for searching.  REFERENCE_NAME should name the object
-   containing the reference; it is used in error messages.  If NOPLT is
-   nonzero, then the reference must not be resolved to a PLT entry.  */
+   containing the reference; it is used in error messages.  RELOC_ADDR is
+   the address being fixed up and the chosen symbol cannot be one with this
+   value.  If NOPLT is nonzero, then the reference must not be resolved to
+   a PLT entry.  */
 extern Elf32_Addr _dl_lookup_symbol (const char *undef,
 				     const Elf32_Sym **sym,
 				     struct link_map *symbol_scope,
 				     const char *reference_name,
+				     Elf32_Addr reloc_addr,
 				     int noplt);