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authorUlrich Drepper <drepper@redhat.com>2003-09-30 20:37:46 +0000
committerUlrich Drepper <drepper@redhat.com>2003-09-30 20:37:46 +0000
commitf556dbfa418a6898f3be215586ee73411f50afa8 (patch)
treedcb46bbc8dc36fa82e64c91aa89d034cc2891864 /elf/rtld.c
parent94ae6d75adab2808237d284f9f5a927cf2845ec0 (diff)
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Update.
2003-09-30  Ulrich Drepper  <drepper@redhat.com>

	* elf/rtld.c (dl_main): Also set l_map_start.

2003-09-30  Daniel Jacobowitz  <drow@mvista.com>

	* elf/rtld.c (dl_main): Set l_libname and l_name for the sysinfo DSO
	to work around kernel problem.
Diffstat (limited to 'elf/rtld.c')
-rw-r--r--elf/rtld.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/elf/rtld.c b/elf/rtld.c
index d57d8838ac..69238399b5 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -1153,7 +1153,7 @@ of this helper program; chances are you did not intend to run this program.\n\
       struct link_map *l = _dl_new_object ((char *) "", "", lt_library, NULL);
       if (__builtin_expect (l != NULL, 1))
 	{
-	  static ElfW(Dyn) dyn_temp [DL_RO_DYN_TEMP_CNT];
+	  static ElfW(Dyn) dyn_temp[DL_RO_DYN_TEMP_CNT];
 
 	  l->l_phdr = ((const void *) GL(dl_sysinfo_dso)
 		       + GL(dl_sysinfo_dso)->e_phoff);
@@ -1173,12 +1173,22 @@ of this helper program; chances are you did not intend to run this program.\n\
 	  elf_get_dynamic_info (l, dyn_temp);
 	  _dl_setup_hash (l);
 	  l->l_relocated = 1;
+	  l->l_map_start = GL(dl_sysinfo_dso);
 
 	  /* Now that we have the info handy, use the DSO image's soname
 	     so this object can be looked up by name.  */
 	  if (l->l_info[DT_SONAME] != NULL)
-	    l->l_libname->name = ((char *) D_PTR (l, l_info[DT_STRTAB])
-				  + l->l_info[DT_SONAME]->d_un.d_val);
+	    {
+	      /* Work around a kernel problem.  The kernel cannot handle
+		 addresses in the vsyscall DSO pages in writev() calls.  */
+	      const char *dsoname = ((char *) D_PTR (l, l_info[DT_STRTAB])
+				     + l->l_info[DT_SONAME]->d_un.d_val);
+	      size_t len = strlen (dsoname);
+	      l->l_name = (char *) malloc (len);
+	      if (l->l_name == NULL)
+		_dl_fatal_printf ("out of memory\n");
+	      l->l_libname->name = memcpy (l->l_name, dsoname, len);
+	    }
 	}
     }
 #endif