/* mremap.c -- version of mremap for gold. */
-/* Copyright 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor <iant@google.com>.
This file is part of gold.
#include "config.h"
#include "ansidecl.h"
+#include <errno.h>
#include <string.h>
#include <sys/types.h>
+
+#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
+#endif
+
+extern void *gold_mremap (void *, size_t, size_t, int);
+
+#ifdef HAVE_MMAP
/* This file implements mremap for systems which don't have it. The
gold code requires support for mmap. However, there are systems
#endif
void *
-mremap (void *old_address, size_t old_size, size_t new_size,
- int flags ATTRIBUTE_UNUSED, ...)
+gold_mremap (void *old_address, size_t old_size, size_t new_size,
+ int flags ATTRIBUTE_UNUSED)
{
void *ret;
(void) munmap (old_address, old_size);
return ret;
}
+
+#else /* !defined(HAVE_MMAP) */
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *) -1)
+#endif
+
+#ifndef ENOSYS
+#define ENOSYS EINVAL
+#endif
+
+void *
+gold_mremap (void *old_address ATTRIBUTE_UNUSED,
+ size_t old_size ATTRIBUTE_UNUSED,
+ size_t new_size ATTRIBUTE_UNUSED,
+ int flags ATTRIBUTE_UNUSED)
+{
+ errno = ENOSYS;
+ return MAP_FAILED;
+}
+
+#endif /* !defined(HAVE_MMAP) */