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authorUlrich Drepper <drepper@redhat.com>2004-03-07 05:26:02 +0000
committerUlrich Drepper <drepper@redhat.com>2004-03-07 05:26:02 +0000
commit021723ab784461de9eac57398ea16a47d4ab9366 (patch)
tree9fef57d701b88d5729e3150ea197f86957727998 /elf/do-lookup.h
parentbdf4a4f1eabb2e085b0610b53bb37b5263f4728d (diff)
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Update.
2004-03-06  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-lookup.c: We don't need for specialized lookup functions.
	Combining the functionality does not slow down relocation processing,
	it might even speed it up a little.
	* sysdeps/generic/ldsodefs.h: Adjust prototypes for lookup function.
	Add only one function pointer to rtlf_global_ro.
	* elf/do-lookup.h: Replace #ifs with ifs.
	* elf/dl-libc.c: Adjust _dl_lookup_* callers.
	* elf/dl-reloc.c: Likewise.
	* elf/dl-runtime.c: Likewise.
	* elf/dl-sym.c: Likewise.
	* elf/rtld.c: Likewise.  Adjust _rtld_global_ro initialization.

	* sysdeps/generic/ldsodefs.h (__rtld_local_attribute__,
	__rtld_global_attribute__): Undef after use.
	(_rtld_local_ro): Define __rtld_local_attribute__ with just hidden
	if available.

	* sysdeps/alpha/Subdirs: New file.
	* sysdeps/alpha/soft-fp/Makefile: New file.
	* sysdeps/alpha/soft-fp/Versions: New file.
	* sysdeps/alpha/soft-fp/local-soft-fp.h: New file.
	* sysdeps/alpha/soft-fp/ots_add.c: New file.
	* sysdeps/alpha/soft-fp/ots_cmp.c: new file.
	* sysdeps/alpha/soft-fp/ots_cmpe.c: New file.
	* sysdeps/alpha/soft-fp/ots_cvtqux.c: New file.
	* sysdeps/alpha/soft-fp/ots_cvtqx.c: New file.
	* sysdeps/alpha/soft-fp/ots_cvttx.c: New file.
	* sysdeps/alpha/soft-fp/ots_cvtxq.c: New file.
	* sysdeps/alpha/soft-fp/ots_cvtxt.c: New file.
	* sysdeps/alpha/soft-fp/ots_div.c: New file.
	* sysdeps/alpha/soft-fp/ots_mul.c: New file.
	* sysdeps/alpha/soft-fp/ots_nintxq.c: New file.
	* sysdeps/alpha/soft-fp/ots_sub.c: New file.
Diffstat (limited to 'elf/do-lookup.h')
-rw-r--r--elf/do-lookup.h137
1 files changed, 64 insertions, 73 deletions
diff --git a/elf/do-lookup.h b/elf/do-lookup.h
index 014a06a5aa..9e78dbfa8d 100644
--- a/elf/do-lookup.h
+++ b/elf/do-lookup.h
@@ -17,21 +17,16 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#if VERSIONED
-# define FCT do_lookup_versioned
-# define ARG const struct r_found_version *const version
-#else
-# define FCT do_lookup
-# define ARG int flags
-#endif
-
 /* Inner part of the lookup functions.  We return a value > 0 if we
    found the symbol, the value 0 if nothing is found and < 0 if
    something bad happened.  */
 static int
-FCT (const char *undef_name, unsigned long int hash, const ElfW(Sym) *ref,
-     struct sym_val *result, struct r_scope_elem *scope, size_t i, ARG,
-     struct link_map *skip, int type_class)
+__attribute_noinline__
+do_lookup_x (const char *undef_name, unsigned long int hash,
+	     const ElfW(Sym) *ref, struct sym_val *result,
+	     struct r_scope_elem *scope, size_t i,
+	     const struct r_found_version *const version, int flags,
+	     struct link_map *skip, int type_class)
 {
   struct link_map **list = scope->r_list;
   size_t n = scope->r_nlist;
@@ -44,10 +39,8 @@ FCT (const char *undef_name, unsigned long int hash, const ElfW(Sym) *ref,
       const ElfW(Half) *verstab;
       Elf_Symndx symidx;
       const ElfW(Sym) *sym;
-#if ! VERSIONED
       int num_versions = 0;
       const ElfW(Sym) *versioned_sym = NULL;
-#endif
 
       map = list[i];
 
@@ -100,67 +93,71 @@ FCT (const char *undef_name, unsigned long int hash, const ElfW(Sym) *ref,
 	    /* Not the symbol we are looking for.  */
 	    continue;
 
-#if VERSIONED
-	  if (__builtin_expect (verstab == NULL, 0))
+	  if (version != NULL)
 	    {
-	      /* We need a versioned symbol but haven't found any.  If
-		 this is the object which is referenced in the verneed
-		 entry it is a bug in the library since a symbol must
-		 not simply disappear.
-
-		 It would also be a bug in the object since it means that
-		 the list of required versions is incomplete and so the
-		 tests in dl-version.c haven't found a problem.*/
-	      assert (version->filename == NULL
-		      || ! _dl_name_match_p (version->filename, map));
-
-	      /* Otherwise we accept the symbol.  */
+	      if (__builtin_expect (verstab == NULL, 0))
+		{
+		  /* We need a versioned symbol but haven't found any.  If
+		     this is the object which is referenced in the verneed
+		     entry it is a bug in the library since a symbol must
+		     not simply disappear.
+
+		     It would also be a bug in the object since it means that
+		     the list of required versions is incomplete and so the
+		     tests in dl-version.c haven't found a problem.*/
+		  assert (version->filename == NULL
+			  || ! _dl_name_match_p (version->filename, map));
+
+		  /* Otherwise we accept the symbol.  */
+		}
+	      else
+		{
+		  /* We can match the version information or use the
+		     default one if it is not hidden.  */
+		  ElfW(Half) ndx = verstab[symidx] & 0x7fff;
+		  if ((map->l_versions[ndx].hash != version->hash
+		       || strcmp (map->l_versions[ndx].name, version->name))
+		      && (version->hidden || map->l_versions[ndx].hash
+			  || (verstab[symidx] & 0x8000)))
+		    /* It's not the version we want.  */
+		    continue;
+		}
 	    }
 	  else
 	    {
-	      /* We can match the version information or use the
-		 default one if it is not hidden.  */
-	      ElfW(Half) ndx = verstab[symidx] & 0x7fff;
-	      if ((map->l_versions[ndx].hash != version->hash
-		   || strcmp (map->l_versions[ndx].name, version->name))
-		  && (version->hidden || map->l_versions[ndx].hash
-		      || (verstab[symidx] & 0x8000)))
-		/* It's not the version we want.  */
-		continue;
-	    }
-#else
-	  /* No specific version is selected.  There are two ways we
-	     can got here:
-
-	     - a binary which does not include versioning information
-	       is loaded
-
-	     - dlsym() instead of dlvsym() is used to get a symbol which
-	       might exist in more than one form
-
-	     If the library does not provide symbol version
-	     information there is no problem at at: we simply use the
-	     symbol if it is defined.
-
-	     These two lookups need to be handled differently if the
-	     library defines versions.  In the case of the old
-	     unversioned application the oldest (default) version
-	     should be used.  In case of a dlsym() call the latest and
-	     public interface should be returned.  */
-	  if (verstab != NULL)
-	    {
-	      if ((verstab[symidx] & 0x7fff)
-		  >= ((flags & DL_LOOKUP_RETURN_NEWEST) ? 2 : 3))
+	      /* No specific version is selected.  There are two ways we
+		 can got here:
+
+		 - a binary which does not include versioning information
+		   is loaded
+
+		 - dlsym() instead of dlvsym() is used to get a symbol which
+		   might exist in more than one form
+
+		 If the library does not provide symbol version
+		 information there is no problem at at: we simply use the
+		 symbol if it is defined.
+
+		 These two lookups need to be handled differently if the
+		 library defines versions.  In the case of the old
+		 unversioned application the oldest (default) version
+		 should be used.  In case of a dlsym() call the latest and
+		 public interface should be returned.  */
+	      if (verstab != NULL)
 		{
-		  /* Don't accept hidden symbols.  */
-		  if ((verstab[symidx] & 0x8000) == 0 && num_versions++ == 0)
-		    /* No version so far.  */
-		    versioned_sym = sym;
+		  if ((verstab[symidx] & 0x7fff)
+		      >= ((flags & DL_LOOKUP_RETURN_NEWEST) ? 2 : 3))
+		    {
+		      /* Don't accept hidden symbols.  */
+		      if ((verstab[symidx] & 0x8000) == 0
+			  && num_versions++ == 0)
+			/* No version so far.  */
+			versioned_sym = sym;
 
-		  continue;
+		      continue;
+		    }
 		}
 	    }
-#endif
 
 	  /* There cannot be another entry for this symbol so stop here.  */
 	  goto found_it;
@@ -170,11 +167,7 @@ FCT (const char *undef_name, unsigned long int hash, const ElfW(Sym) *ref,
 	 looking for an unversioned symbol and the version is not the
 	 default version we still accept this symbol since there are
 	 no possible ambiguities.  */
-#if VERSIONED
-      sym = NULL;
-#else
       sym = num_versions == 1 ? versioned_sym : NULL;
-#endif
 
       if (sym != NULL)
 	{
@@ -204,13 +197,11 @@ FCT (const char *undef_name, unsigned long int hash, const ElfW(Sym) *ref,
 	    }
 	}
 
-#if VERSIONED
       /* If this current map is the one mentioned in the verneed entry
 	 and we have not found a weak entry, it is a bug.  */
-      if (symidx == STN_UNDEF && version->filename != NULL
+      if (symidx == STN_UNDEF && version != NULL && version->filename != NULL
 	  && __builtin_expect (_dl_name_match_p (version->filename, map), 0))
 	return -1;
-#endif
     }
   while (++i < n);