Update.

2000-05-05  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-load.c (_dl_map_object_from_fd): Little of computation of
	parameter to mprotect and for variable assignments.

2000-05-03  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Check the
	validity of map before dereferencing it.

	* elf/dl-reloc.c (RESOLVE_MAP): Define.

2000-05-02  Jes Sorensen  <jes@linuxcare.com>

	* elf/dl-runtime.c (fixup): Add the value returned in the symbol
	lookup to the arguments to elf_machine_fixup_plt().

	* sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Add Link_map
	of the symbol being resolved to input argument list and make the
	function return the pointer to the reloc.

	* sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Change
	return valuie to lookup_t and return the value.
	* sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise.

	* sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Likewise.
	Make it an inline function returning value after calling
	__elf_machine_fixup_plt().

	* elf/dl-sym.c (_dl_vsym): Use DL_SYMBOL_ADDRESS() to obtain the
	symbol address.

	* elf/dl-symbol.c (_dl_symbol_value): Use LOOKUP_VALUE_ADDRESS to
	obtain the symbol address.

	* sysdeps/generic/ldsodefs.h: Add generic DL_SYMBOL_ADDRESS() macro
	depending on the definition of ELF_FUNCTION_PTR_IS_SPECIAL.

	* sysdeps/ia64/dl-machine.h: Add DL_SYMBOL_ADDRESS() macro calling
	_dl_symbol_address() - this way DL_SYMBOL_ADDRESS() turns into an
	inline on non ia64.

2000-04-28  Jes Sorensen  <jes@linuxcare.com>

	* elf/dl-runtime.c (fixup): Use the portable macros to get the
	symbol address of an object.

	* elf/dl-runtime.c (fixup-profile): Use the portable macros to get
	the symbol address of an object.

	* elf/dl-libc.c (struct do_dlsym_args): Change loadbase to a lookup_t.
	* elf/dl-lookup.c (_dl_lookup_symbol): Likewise.
	(_dl_lookup_symbol_skip): Likewise.
	(_dl_lookup_versioned_symbol): Likewise.
	(_dl_lookup_versioned_symbol_skip): Likewise.

2000-04-27  Jes Sorensen  <jes@linuxcare.com>

	* elf/rtld.c (_dl_start): Get the function pointer return address
	via _dl_start_address for architectures that need a function
	pointer descriptor rather than just a pointer (ia64).

	* sysdeps/generic/dl-lookupcfg.h: New file.
	* sysdeps/ia64/dl-lookupcfg.h: New file.
	* sysdeps/ia64/dl-machine.h: New file.
	* sysdeps/ia64/dl-symaddr.c: New file.
	* sysdeps/ia64/dl-fptr.c: New file.

	* elf/elf.h: Add IA-64 specific definitions.

1 files changed, 19 insertions, 20 deletions

diff --git a/elf/dl-sym.c b/elf/dl-sym.c
index 80be954..84236ff 100644
--- a/elf/dl-sym.c
+++ b/elf/dl-sym.c
@@ -1,5 +1,5 @@
 /* Look up a symbol in a shared object loaded by `dlopen'.
-   Copyright (C) 1999 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -29,12 +29,12 @@ void *
 internal_function
 _dl_sym (void *handle, const char *name, void *who)
 {
-  ElfW(Addr) loadbase;
   const ElfW(Sym) *ref = NULL;
+  lookup_t result;
 
   if (handle == RTLD_DEFAULT)
     /* Search the global scope.  */
-    loadbase = _dl_lookup_symbol (name, NULL, &ref, _dl_global_scope, 0);
+    result = _dl_lookup_symbol (name, NULL, &ref, _dl_global_scope, 0);
   else
     {
       struct link_map *l, *match;
@@ -56,8 +56,8 @@ _dl_sym (void *handle, const char *name, void *who)
 	       main program (we hope).  */
 	    match = _dl_loaded;
 
-	  loadbase = _dl_lookup_symbol (name, match, &ref, map->l_local_scope,
-					0);
+	  result = _dl_lookup_symbol (name, match, &ref, map->l_local_scope,
+				      0);
 	}
       else
 	{
@@ -69,13 +69,13 @@ RTLD_NEXT used in code not dynamically loaded"));
 	  while (l->l_loader)
 	    l = l->l_loader;
 
-	  loadbase = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope,
-					     match);
+	  result = _dl_lookup_symbol_skip (name, l, &ref, l->l_local_scope,
+					   match);
 	}
     }
 
-  if (loadbase)
-    return (void *) (loadbase + ref->st_value);
+  if (result)
+    return DL_SYMBOL_ADDRESS (result, ref);
 
   return NULL;
 }
@@ -84,9 +84,9 @@ void *
 internal_function
 _dl_vsym (void *handle, const char *name, const char *version, void *who)
 {
-  ElfW(Addr) loadbase;
   const ElfW(Sym) *ref = NULL;
   struct r_found_version vers;
+  lookup_t result;
 
   /* Compute hash value to the version string.  */
   vers.name = version;
@@ -97,8 +97,8 @@ _dl_vsym (void *handle, const char *name, const char *version, void *who)
 
   if (handle == RTLD_DEFAULT)
     /* Search the global scope.  */
-    loadbase = _dl_lookup_versioned_symbol (name, NULL, &ref, _dl_global_scope,
-					    &vers, 0);
+    result = _dl_lookup_versioned_symbol (name, NULL, &ref, _dl_global_scope,
+					  &vers, 0);
   else if (handle == RTLD_NEXT)
     {
       struct link_map *l, *match;
@@ -118,20 +118,19 @@ RTLD_NEXT used in code not dynamically loaded"));
       while (l->l_loader)
 	l = l->l_loader;
 
-      loadbase = _dl_lookup_versioned_symbol_skip (name, l, &ref,
-						   l->l_local_scope,
-						   &vers, match);
+      result = _dl_lookup_versioned_symbol_skip (name, l, &ref,
+						 l->l_local_scope,
+						 &vers, match);
     }
   else
     {
       /* Search the scope of the given object.  */
       struct link_map *map = handle;
-      loadbase = _dl_lookup_versioned_symbol (name, map, &ref,
-					      map->l_local_scope, &vers, 0);
+      result = _dl_lookup_versioned_symbol (name, map, &ref,
+					    map->l_local_scope, &vers, 0);
     }
 
-  if (loadbase)
-    return (void *) (loadbase + ref->st_value);
-
+  if (result)
+    return DL_SYMBOL_ADDRESS (result, ref);
   return NULL;
 }