1 files changed, 0 insertions, 92 deletions
diff --git a/sysdeps/nacl/brk.c b/sysdeps/nacl/brk.c
deleted file mode 100644
index c96c66f3b8..0000000000
--- a/sysdeps/nacl/brk.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* brk -- Adjust the "break" at the end of initial data.  NaCl version.
-   Copyright (C) 2015-2017 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,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <stdint.h>
-#include <sys/mman.h>
-#include <sys/param.h>
-#include <unistd.h>
-
-/* sbrk.c expects this.  */
-void *__curbrk;
-
-static uintptr_t
-page_above (void *addr)
-{
-  return ALIGN_UP ((uintptr_t) addr, EXEC_PAGESIZE);
-}
-
-/* Set the end of the process's data space to ADDR.
-   Return 0 if successful, -1 if not.  */
-int
-__brk (void *addr)
-{
-  /* The NaCl sysbrk call is deprecated, so we do not use it here.  Other
-     libc code expects that __sbrk can be used at least a little bit, so
-     rather than a plain stub we have a minimal __brk implementation here.
-     It just uses mmap/munmap to grow or shrink the break area, punting as
-     soon as mmap fails to use the same contiguous area.  */
-
-  if (__glibc_unlikely (__curbrk == NULL))
-    {
-      /* This is the first call.  We must initialize the record
-         of the current position.  It starts out at the end of the
-         main program's data segment.  */
-
-      /* XXX dynamic case??? */
-      extern char _end[];
-      __curbrk = _end;
-    }
-
-  if (__glibc_unlikely (addr == NULL))
-    /* This is a call just to ensure that __curbrk is set up.  */
-    return 0;
-
-  uintptr_t old_limit = page_above (__curbrk);
-  uintptr_t new_limit = page_above (addr);
-
-  if (old_limit > new_limit)
-    {
-      /* We're shrinking the old heap enough to release some pages.  */
-      if (__munmap ((void *) new_limit, old_limit - new_limit) != 0)
-	return -1;
-    }
-  else if (old_limit < new_limit)
-    {
-      /* We're growing the old heap enough to need some more pages.
-	 See if they are available.  */
-      void *new_space = __mmap ((void *) old_limit, new_limit - old_limit,
-				PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
-      if (new_space != (void *) old_limit)
-	{
-          if (new_space != MAP_FAILED)
-            {
-              /* mmap chose some different place for the pages
-                 because the contiguous area was not available.
-                 Oh well.  We can't use that.  */
-              __munmap (new_space, new_limit - old_limit);
-              __set_errno (ENOMEM);
-            }
-	  return -1;
-	}
-    }
-
-  __curbrk = addr;
-  return 0;
-}
-weak_alias (__brk, brk)