1 files changed, 0 insertions, 59 deletions
diff --git a/sysdeps/unix/sysv/linux/malloc-sysdep.h b/sysdeps/unix/sysv/linux/malloc-sysdep.h
deleted file mode 100644
index 48cf7c157c..0000000000
--- a/sysdeps/unix/sysv/linux/malloc-sysdep.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* System-specific malloc support functions.  Linux version.
-   Copyright (C) 2012-2017 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 <fcntl.h>
-#include <not-cancel.h>
-
-/* The Linux kernel overcommits address space by default and if there is not
-   enough memory available, it uses various parameters to decide the process to
-   kill.  It is however possible to disable or curb this overcommit behavior
-   by setting the proc sysctl vm.overcommit_memory to the value '2' and with
-   that, a process is only allowed to use the maximum of a pre-determined
-   fraction of the total address space.  In such a case, we want to make sure
-   that we are judicious with our heap usage as well, and explicitly give away
-   the freed top of the heap to reduce our commit charge.  See the proc(5) man
-   page to know more about overcommit behavior.
-
-   Other than that, we also force an unmap in a secure exec.  */
-static inline bool
-check_may_shrink_heap (void)
-{
-  static int may_shrink_heap = -1;
-
-  if (__builtin_expect (may_shrink_heap >= 0, 1))
-    return may_shrink_heap;
-
-  may_shrink_heap = __libc_enable_secure;
-
-  if (__builtin_expect (may_shrink_heap == 0, 1))
-    {
-      int fd = open_not_cancel_2 ("/proc/sys/vm/overcommit_memory",
-				  O_RDONLY | O_CLOEXEC);
-      if (fd >= 0)
-	{
-	  char val;
-	  ssize_t n = read_not_cancel (fd, &val, 1);
-	  may_shrink_heap = n > 0 && val == '2';
-	  close_not_cancel_no_status (fd);
-	}
-    }
-
-  return may_shrink_heap;
-}
-
-#define HAVE_MREMAP 1