gdb/

* auxv.c (memory_xfer_auxv): Update attach comment.
	* solib-svr4.c (svr4_special_symbol_handling): Remove the call to
	svr4_relocate_main_executable.
	(svr4_solib_create_inferior_hook): Make the call to
	svr4_relocate_main_executable unconditional.

gdb/testsuite/
	* gdb.base/attach-pie-misread.exp, gdb.base/attach-pie-misread.c: New.
	* gdb.base/break-interp.exp (reach, test_core, test_ld): Require each
	displacement message exactly once.

gdb/testsuite/gdb.base/attach-pie-misread.c

@@ -0,0 +1,47 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <unistd.h>
+
+const char stub[] = {
+#ifdef GEN
+# include GEN
+#endif
+};
+
+int
+main (int argc, char **argv)
+{
+  /* Generator of GEN written in Python takes about 15s for x86_64's 4MB.  */
+  if (argc == 2)
+    {
+      long count = strtol (argv[1], NULL, 0);
+
+      while (count-- > 0)
+	puts ("0x55,");
+
+      return 0;
+    }
+  if (argc != 1)
+    return 1;
+
+  puts ("sleeping");
+  fflush (stdout);
+
+  return sleep (60);
+}