* Makerules ($(common-objpfx)libc.so): Depend on $(elfobjdir)/ld.so. cvs/libc-960611

	* elf/dl-close.c: New file.
	* elf/link.h: Declare _dl_close.
	* elf/Makefile (routines): Add dl-close.
	* elf/dlclose.c (dlclose): Use _dl_close.

	* elf/Makefile ($(objpfx)librtld.so): Remove libelf from deps.

	* elf/dl-runtime.c (_dl_global_scope): New variable.
	(_dl_object_relocation_scope): New function.
	(fixup): Use it.
	* elf/rtld.c (dl_main): Use it.
	* elf/dl-open.c (_dl_open): Use it.  If (MODE & RTLD_GLOBAL), set the
	l_global bit and append the new map to _dl_global_scope.
	* elf/link.h: Declare _dl_global_scope, _dl_global_scope_alloc,
	and _dl_object_relocation_scope.

	* elf/link.h (struct link_map): Add l_loader member.
	Remove _dl_map_object_from_fd decl.
	* elf/dl-load.c (_dl_map_object): Pass LOADER to ...
	(_dl_map_object_from_fd): Take new arg LOADER and set l_loader member.
	(_dl_map_object): Try DT_RPATH from all loaders up the chain.

	* elf/dl-object.c (_dl_loaded): Variable removed.
	(_dl_default_scope): New variable replaces it.
	* elf/link.h (_dl_loaded): Remove variable decl; instead define as
	macro for _dl_default_scope[2].
	(_dl_default_scope): Declare it.
	* sysdeps/i386/dl-machine.h (RTLD_START): Use _dl_default_scope[2]
	instead of _dl_loaded.
	* sysdeps/m68k/dl-machine.h (RTLD_START): Likewise.
	* elf/rtld.c (dl_main): Use _dl_default_scope for symbol lookups.

	* elf/dl-reloc.c (_dl_relocate_object): Remove check for _dl_rtld_map.
	* elf/rtld.c (dl_main): Pass 0 for LAZY flag when re-relocating self.

	* elf/link.h (struct link_map.l_type): Remove lt_interpreter.
 	(struct link_map): Add new flag member l_global.

	* elf/dl-reloc.c (_dl_relocate_object): Check for _dl_rtld_map
	directly instead of looking for lt_interpreter.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
	* elf/rtld.c (_dl_start): Don't bother setting BOOTSTRAP_MAP.l_type.
	(dl_main): Set _dl_rtld_map.l_type to lt_library.

	* elf/dl-deps.c (_dl_map_object_deps): Propagate MAP->l_type to
	dependencies loaded, downgrading lt_executable -> lt_library.

	* elf/dl-load.c (_dl_map_object_from_fd): Take new arg TYPE and set
	l_type from that, translating lt_library->lt_executable based on the
	file's ELF type.
	(_dl_map_object): Likewise.
	* elf/link.h: Update prototypes.
	* elf/dl-open.c: Pass type lt_loaded.
	* elf/rtld.c: Pass type lt_library.

	* elf/dl-load.c (_dl_map_object_from_fd): Handle null return from
	_dl_new_object.
	(_dl_map_object_from_fd: lose): Unchain and free L if it's not null.
	Free REALNAME, and just use NAME in error message.
	* elf/dl-object.c (_dl_new_object): If malloc fails, return null
	instead of calling _dl_signal_error.

	* elf/dl-load.c (_dl_map_object_from_fd): Close FD before signalling
	error for _dl_zerofd setup failure.

	* elf/dl-object.c (_dl_startup_loaded): Variable removed.
	* elf/link.h: Remove its decl.

	* elf/dl-reloc.c (_dl_relocate_object): Take new SCOPE arg and pass it
	through to _dl_lookup_symbol.
	* elf/link.h (_dl_relocate_object): Update comment and prototype.
	* elf/rtld.c (dl_main): Pass scope vector to _dl_relocate_object.

	* elf/dl-lookup.c (_dl_lookup_symbol): Arg SYMBOL_SCOPE is now a
	null-terminated vector of pointers, no longer a vector of exactly two.
	* elf/link.h (_dl_lookup_symbol): Update comment and prototype.

	* elf/dl-runtime.c (fixup): Set up scope for symbol lookup properly as
	done in _dl_relocate_object.

	* elf/dlopen.c: Pass "" to _dl_open when FILE is null.

1 files changed, 7 insertions, 26 deletions

diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c
index 5da8575da5..e6778e7de3 100644
--- a/elf/dl-reloc.c
+++ b/elf/dl-reloc.c
@@ -26,7 +26,7 @@ Cambridge, MA 02139, USA.  */
 
 
 void
-_dl_relocate_object (struct link_map *l, int lazy)
+_dl_relocate_object (struct link_map *l, struct link_map *scope[], int lazy)
 {
   if (l->l_relocated)
     return;
@@ -52,44 +52,26 @@ _dl_relocate_object (struct link_map *l, int lazy)
     }
 
   {
-    struct link_map *scope[2];
+    /* Do the actual relocation of the object's GOT and other data.  */
 
-    const char *strtab
+    const char *strtab		/* String table object symbols.  */
       = ((void *) l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr);
-
     ElfW(Addr) resolve (const ElfW(Sym) **ref,
 			ElfW(Addr) reloc_addr, int noplt)
       {
+	/* Look up the referenced symbol in the specified scope.  */
 	return _dl_lookup_symbol (strtab + (*ref)->st_name, ref, scope,
 				  l->l_name, reloc_addr, noplt);
       }
 
-    if (l->l_info[DT_SYMBOLIC])
-      {
-	scope[0] = l;
-	scope[1] = _dl_loaded;
-      }
-    else
-      {
-	scope[0] = _dl_loaded;
-	scope[1] = l;
-      }
-
-    if (l->l_type == lt_interpreter)
-      /* We cannot be lazy when relocating the dynamic linker itself.  It
-	 was previously relocated eagerly (allowing us to be running now),
-	 and needs always to be fully relocated so it can run without the
-	 aid of run-time fixups (because it's the one to do them), so we
-	 must always re-relocate its PLT eagerly.  */
-      lazy = 0;
-
     ELF_DYNAMIC_RELOCATE (l, lazy, resolve);
   }
 
-  /* Set up the PLT so its unrelocated entries will
-     jump to _dl_runtime_resolve, which will relocate them.  */
+  /* Set up the PLT so its unrelocated entries will jump to
+     _dl_runtime_resolve (dl-runtime.c), which will relocate them.  */
   elf_machine_runtime_setup (l, lazy);
 
+  /* Mark the object so we know ths work has been done.  */
   l->l_relocated = 1;
 
   if (l->l_info[DT_TEXTREL])
@@ -114,5 +96,4 @@ _dl_relocate_object (struct link_map *l, int lazy)
 				"can't restore segment prot after reloc");
 	  }
     }
-
 }