1 files changed, 41 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/sbrk.c b/REORG.TODO/sysdeps/mach/hurd/sbrk.c
new file mode 100644
index 0000000000..5c9555a31c
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/sbrk.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991-2017 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 <hurd.h>
+#include <unistd.h>
+
+/* Extend the process's data space by INCREMENT.
+   If INCREMENT is negative, shrink data space by - INCREMENT.
+   Return the address of the start of the new data space, or -1 for errors.  */
+void *
+__sbrk (intptr_t increment)
+{
+  void *result;
+
+  HURD_CRITICAL_BEGIN;
+  __mutex_lock (&_hurd_brk_lock);
+  result = (void *) _hurd_brk;
+  if (increment != 0 && _hurd_set_brk (_hurd_brk + increment) < 0)
+    result = (void *) -1;
+  __mutex_unlock (&_hurd_brk_lock);
+  HURD_CRITICAL_END;
+
+  return result;
+}
+libc_hidden_def (__sbrk)
+weak_alias (__sbrk, sbrk)