re PR target/71161 (Lots of ASAN and libgo runtime FAILs after r236090)

	PR target/71161
	* elf.c (phdr_callback) [__i386__]: Add
	__attribute__((__force_align_arg_pointer__)).

From-SVN: r236397

libbacktrace/ChangeLog

+2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/71161
+	* elf.c (phdr_callback) [__i386__]: Add
+	__attribute__((__force_align_arg_pointer__)).
+
 2016-03-02  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
 
 	* elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
@@ -15,12 +21,13 @@
 
 2015-12-18  Andris Pavenis  <andris.pavenis@iki.fi>
 
-	* configure.ac: Specify that DJGPP do not have mmap even when sys/mman.h exists
+	* configure.ac: Specify that DJGPP do not have mmap
+	even when sys/mman.h exists.
 	* configure: Regenerate
 
 2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
 
-	PR 68115/libfortran
+	PR libgfortran/68115
 	* configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
 	* configure: Regenerate.
 	* elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call

libbacktrace/elf.c

@@ -866,6 +866,9 @@ struct phdr_data
    libraries.  */
 
 static int
+#ifdef __i386__
+__attribute__ ((__force_align_arg_pointer__))
+#endif
 phdr_callback (struct dl_phdr_info *info, size_t size ATTRIBUTE_UNUSED,
 	       void *pdata)
 {