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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /elf/dl-reloc.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'elf/dl-reloc.c')
-rw-r--r--elf/dl-reloc.c74
1 files changed, 37 insertions, 37 deletions
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c
index 117410e924..4004316c5a 100644
--- a/elf/dl-reloc.c
+++ b/elf/dl-reloc.c
@@ -1,5 +1,5 @@
 /* Relocate a shared object and resolve its references to other loaded objects.
-   Copyright (C) 1995-2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 1995-2002, 2003, 2004 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
@@ -48,6 +48,8 @@ void
 internal_function __attribute_noinline__
 _dl_allocate_static_tls (struct link_map *map)
 {
+  size_t offset;
+
   /* If the alignment requirements are too high fail.  */
   if (map->l_tls_align > GL(dl_tls_static_align))
     {
@@ -69,15 +71,15 @@ cannot allocate memory in static TLS block"));
 
   n = (freebytes - blsize) / map->l_tls_align;
 
-  size_t offset = GL(dl_tls_static_used) + (freebytes - n * map->l_tls_align
-					    - map->l_tls_firstbyte_offset);
+  offset = GL(dl_tls_static_used) + (freebytes - n * map->l_tls_align
+				     - map->l_tls_firstbyte_offset);
 
   map->l_tls_offset = GL(dl_tls_static_used) = offset;
 # elif TLS_DTV_AT_TP
   size_t used;
   size_t check;
 
-  size_t offset = roundup (GL(dl_tls_static_used), map->l_tls_align);
+  offset = roundup (GL(dl_tls_static_used), map->l_tls_align);
   used = offset + map->l_tls_blocksize;
   check = used;
   /* dl_tls_static_used includes the TCB at the beginning.  */
@@ -91,20 +93,8 @@ cannot allocate memory in static TLS block"));
 #  error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
 # endif
 
-  /* If the object is not yet relocated we cannot initialize the
-     static TLS region.  Delay it.  */
-  if (map->l_real->l_relocated)
-    {
-#ifdef SHARED
-      if (__builtin_expect (THREAD_DTV()[0].counter != GL(dl_tls_generation),
-			    0))
-	/* Update the slot information data for at least the generation of
-	   the DSO we are allocating data for.  */
-	(void) _dl_update_slotinfo (map->l_tls_modid);
-#endif
-
-      GL(dl_init_static_tls) (map);
-    }
+  if (map->l_relocated)
+    GL(dl_init_static_tls) (map);
   else
     map->l_need_tls_init = 1;
 }
@@ -124,10 +114,7 @@ _dl_nothread_init_static_tls (struct link_map *map)
 # endif
 
   /* Fill in the DTV slot so that a later LD/GD access will find it.  */
-  dtv_t *dtv = THREAD_DTV ();
-  assert (map->l_tls_modid <= dtv[-1].counter);
-  dtv[map->l_tls_modid].pointer.val = dest;
-  dtv[map->l_tls_modid].pointer.is_static = true;
+  THREAD_DTV ()[map->l_tls_modid].pointer = dest;
 
   /* Initialize the memory.  */
   memset (__mempcpy (dest, map->l_tls_initimage, map->l_tls_initimage_size),
@@ -150,20 +137,11 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
   /* Initialize it to make the compiler happy.  */
   const char *errstring = NULL;
 
-#ifdef SHARED
-  /* If we are auditing, install the same handlers we need for profiling.  */
-  consider_profiling |= GLRO(dl_audit) != NULL;
-#elif defined PROF
-  /* Never use dynamic linker profiling for gprof profiling code.  */
-# define consider_profiling 0
-#endif
-
   if (l->l_relocated)
     return;
 
   /* If DT_BIND_NOW is set relocate all references in this object.  We
      do not do this if we are profiling, of course.  */
-  // XXX Correct for auditing?
   if (!consider_profiling
       && __builtin_expect (l->l_info[DT_BIND_NOW] != NULL, 0))
     lazy = 0;
@@ -247,6 +225,29 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
 	     l->l_lookup_cache.ret = (*ref);				      \
 	     l->l_lookup_cache.value = _lr; }))				      \
      : l)
+#define RESOLVE(ref, version, r_type) \
+    (ELFW(ST_BIND) ((*ref)->st_info) != STB_LOCAL			      \
+     ? ((__builtin_expect ((*ref) == l->l_lookup_cache.sym, 0)		      \
+	 && elf_machine_type_class (r_type) == l->l_lookup_cache.type_class)  \
+		? (bump_num_cache_relocations (),			      \
+	   (*ref) = l->l_lookup_cache.ret,				      \
+	   l->l_lookup_cache.value)					      \
+	: ({ lookup_t _lr;						      \
+	     int _tc = elf_machine_type_class (r_type);			      \
+	     l->l_lookup_cache.type_class = _tc;			      \
+	     l->l_lookup_cache.sym = (*ref);				      \
+	     const struct r_found_version *v = NULL;			      \
+	     int flags = DL_LOOKUP_ADD_DEPENDENCY;			      \
+	     if ((version) != NULL && (version)->hash != 0)		      \
+	       {							      \
+		 v = (version);						      \
+		 flags = 0;						      \
+	       }							      \
+	     _lr = _dl_lookup_symbol_x (strtab + (*ref)->st_name, l, (ref),   \
+					scope, v, _tc, flags, NULL);	      \
+	     l->l_lookup_cache.ret = (*ref);				      \
+	     l->l_lookup_cache.value = _lr; }))				      \
+     : l->l_addr)
 
     /* This macro is used as a callback from elf_machine_rel{a,} when a
        static TLS reloc is about to be performed.  Since (in dl-load.c) we
@@ -267,7 +268,6 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
 
     ELF_DYNAMIC_RELOCATE (l, lazy, consider_profiling);
 
-#ifndef PROF
     if (__builtin_expect (consider_profiling, 0))
       {
 	/* Allocate the array which will contain the already found
@@ -276,23 +276,23 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
 	   will be NULL.  */
 	if (l->l_info[DT_PLTRELSZ] == NULL)
 	  {
-	    errstring = N_("%s: no PLTREL found in object %s\n");
+	    errstring = N_("%s: profiler found no PLTREL in object %s\n");
 	  fatal:
 	    _dl_fatal_printf (errstring,
 			      rtld_progname ?: "<program name unknown>",
 			      l->l_name);
 	  }
 
-	l->l_reloc_result = calloc (sizeof (l->l_reloc_result[0]),
-				    l->l_info[DT_PLTRELSZ]->d_un.d_val);
+	l->l_reloc_result =
+	  (ElfW(Addr) *) calloc (sizeof (ElfW(Addr)),
+				 l->l_info[DT_PLTRELSZ]->d_un.d_val);
 	if (l->l_reloc_result == NULL)
 	  {
 	    errstring = N_("\
-%s: out of memory to store relocation results for %s\n");
+%s: profiler out of memory shadowing PLTREL of %s\n");
 	    goto fatal;
 	  }
       }
-#endif
   }
 
   /* Mark the object so we know this work has been done.  */