Fix alignment for SSE register saving

elf/dl-runtime.c

 /* On-demand PLT fixup for shared objects.
    Copyright (C) 1995-2006, 2007 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
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
@@ skipping 85 matching lines @@
         }
 
 #if defined(__native_client__) && defined(__x86_64__)
       /* We need to save the SSE registers in case something we do
          here clobbers them.  An audit library might do it.  Our
          calls to __nacl_read_tp (deep inside THREAD_GETMEM and the
          like) might do it.  These registers are call-clobbered, but
          they are also used for passing floating-point arguments, so
          the need to survive past the PLT fixup work.  */
       typedef float La_x86_64_xmm __attribute__ ((__vector_size__ (16)));
-      La_x86_64_xmm save_xmm[8];
+      La_x86_64_xmm save_xmm[8] __attribute__ ((__aligned__ (16)));
 # define SAVE_XMM(n) \
       asm volatile ("movdqa %%xmm" #n ", %0" : "=m" (save_xmm[n]))
 # define RESTORE_XMM(n) \
       asm volatile ("movdqa %0, %%xmm" #n :: "m" (save_xmm[n]))
       SAVE_XMM (0);
       SAVE_XMM (1);
       SAVE_XMM (2);
       SAVE_XMM (3);
       SAVE_XMM (4);
       SAVE_XMM (5);
@@ skipping 352 matching lines @@
           afct->ARCH_LA_PLTEXIT (&sym, reloc_result->boundndx,
                                  &l->l_audit[cnt].cookie,
                                  &reloc_result->bound->l_audit[cnt].cookie,
                                  inregs, outregs, symname);
         }
 
       afct = afct->next;
     }
 #endif
 }