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-rw-r--r--support/support_shared_allocate.c57
1 files changed, 0 insertions, 57 deletions
diff --git a/support/support_shared_allocate.c b/support/support_shared_allocate.c
deleted file mode 100644
index 61d088e8cf..0000000000
--- a/support/support_shared_allocate.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Allocate a memory region shared across processes.
- Copyright (C) 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 <stddef.h>
-#include <support/support.h>
-#include <support/xunistd.h>
-#include <sys/mman.h>
-
-/* Header for the allocation. It contains the size of the allocation
- for subsequent unmapping. */
-struct header
-{
- size_t total_size;
- char data[] __attribute__ ((aligned (__alignof__ (max_align_t))));
-};
-
-void *
-support_shared_allocate (size_t size)
-{
- size_t total_size = size + offsetof (struct header, data);
- if (total_size < size)
- {
- errno = ENOMEM;
- oom_error (__func__, size);
- return NULL;
- }
- else
- {
- struct header *result = xmmap (NULL, total_size, PROT_READ | PROT_WRITE,
- MAP_ANONYMOUS | MAP_SHARED, -1);
- result->total_size = total_size;
- return &result->data;
- }
-}
-
-void
-support_shared_free (void *data)
-{
- struct header *header = data - offsetof (struct header, data);
- xmunmap (header, header->total_size);
-}