Update linux-syscall-support to 3f6478ac95edf86cd3da300c2c0d34a438f5dbeb

src/trusted/service_runtime/linux/nacl_bootstrap.c

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * This is a standalone program that loads and runs the dynamic linker.
  * This program itself must be linked statically.  To keep it small, it's
  * written to avoid all dependencies on libc and standard startup code.
  * Hence, this should be linked using -nostartfiles.  It must be compiled
  * with -fno-stack-protector to ensure the compiler won't emit code that
@@ skipping 160 matching lines @@
                      int fd, void *buf, size_t bufsz, uintptr_t pos) {
   ssize_t result = sys_pread64(fd, buf, bufsz, pos);
   if (result < 0)
     fail(file, fail_message, "errno", my_errno, NULL, 0);
   if ((size_t) result != bufsz)
     fail(file, fail_message, "read count", result, NULL, 0);
 }
 
 static uintptr_t my_mmap_simple(uintptr_t address, size_t size,
                                 int prot, int flags, int fd, uintptr_t pos) {
-#if defined(__NR_mmap2)
-  void *result = sys_mmap2((void *) address, size, prot, flags, fd, pos >> 12);
-#else
   void *result = sys_mmap((void *) address, size, prot, flags, fd, pos);
-#endif
   return (uintptr_t) result;
 }
 
 static uintptr_t my_mmap(const char *file,
                          const char *segment_type, unsigned int segnum,
                          uintptr_t address, size_t size,
                          int prot, int flags, int fd, uintptr_t pos) {
   uintptr_t result = my_mmap_simple(address, size, prot, flags, fd, pos);
   if ((void *) result == MAP_FAILED)
     fail(file, "Failed to map segment!  ",
@@ skipping 525 matching lines @@
 
 #if defined(__arm__)
 /*
  * We may bring in __aeabi_* functions from libgcc that in turn
  * want to call raise.
  */
 int raise(int sig) {
   return sys_kill(sys_getpid(), sig);
 }
 #endif