Check __x86_64__ instead of __WORDSIZE

	PR other/55292
	Backport from upstream revision 167883
	* sanitizer_common/sanitizer_linux.cc (internal_mmap): Check
	__x86_64__ instead of __WORDSIZE.
	(internal_filesize): Likwise.

From-SVN: r193500

libsanitizer/ChangeLog

 2012-11-14  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR other/55292
+	Backport from upstream revision 167883
+	* sanitizer_common/sanitizer_linux.cc (internal_mmap): Check
+	__x86_64__ instead of __WORDSIZE.
+	(internal_filesize): Likwise.
+
+2012-11-14  H.J. Lu  <hongjiu.lu@intel.com>
+
 	* configure.ac (AC_CONFIG_AUX_DIR): Removed.
 	* Makefile.in: Regenerated.
 	* configure: Likewise.

libsanitizer/sanitizer_common/sanitizer_linux.cc

@@ -34,7 +34,7 @@ namespace __sanitizer {
 // --------------- sanitizer_libc.h
 void *internal_mmap(void *addr, uptr length, int prot, int flags,
                     int fd, u64 offset) {
-#if __WORDSIZE == 64
+#if defined __x86_64__
   return (void *)syscall(__NR_mmap, addr, length, prot, flags, fd, offset);
 #else
   return (void *)syscall(__NR_mmap2, addr, length, prot, flags, fd, offset);
@@ -67,7 +67,7 @@ uptr internal_write(fd_t fd, const void *buf, uptr count) {
 }
 
 uptr internal_filesize(fd_t fd) {
-#if __WORDSIZE == 64
+#if defined __x86_64__
   struct stat st;
   if (syscall(__NR_fstat, fd, &st))
     return -1;