bits/mman.h: consolidate header file

Sync with GNU C library and consolidate duplicate non
architecture specific defines.
MAP_UNINITIALIZED is only defined to 0x4000000 and used by
the Linux kernel when CONFIG_MMAP_ALLOW_UNINITIALIZED is enabled.
CONFIG_MMAP_ALLOW_UNINITIALIZED is only available for nommu.
See Documentation/nommu-mmap.txt.

1 files changed, 39 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/microblaze/bits/mman.h b/libc/sysdeps/linux/microblaze/bits/mman.h
new file mode 100644
index 000000000..ddd6c32b9
--- /dev/null
+++ b/libc/sysdeps/linux/microblaze/bits/mman.h
@@ -0,0 +1,39 @@
+/* Definitions for POSIX memory map interface.  Linux/MicroBlaze version.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+
+   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/>.  */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+   But the kernel header is not namespace clean.  */
+
+#ifdef __USE_MISC
+/* These are Linux-specific.  */
+# define MAP_GROWSDOWN      0x00100     /* Stack-like segment.  */
+# define MAP_DENYWRITE      0x00800     /* ETXTBSY.  */
+# define MAP_EXECUTABLE     0x01000     /* Mark it as an executable.  */
+# define MAP_LOCKED         0x02000     /* Lock the mapping.  */
+# define MAP_NORESERVE      0x04000     /* Don't check for reservations.  */
+# define MAP_POPULATE       0x08000     /* Populate (prefault) pagetables.  */
+# define MAP_NONBLOCK       0x10000     /* Do not block on IO.  */
+# define MAP_STACK          0x20000     /* Allocation is for a stack.  */
+# define MAP_HUGETLB        0x40000     /* Create huge page mapping.  */
+#endif
+
+/* Include generic Linux declarations.  */
+#include <bits/mman-linux.h>