From 7cc754bc93eafa78695ec03bb0e4e8256d52c76d Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sun, 28 Jan 2018 04:30:35 +0000 Subject: 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. --- libc/sysdeps/linux/aarch64/bits/mman.h | 39 ++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 libc/sysdeps/linux/aarch64/bits/mman.h (limited to 'libc/sysdeps/linux/aarch64/bits') diff --git a/libc/sysdeps/linux/aarch64/bits/mman.h b/libc/sysdeps/linux/aarch64/bits/mman.h new file mode 100644 index 000000000..c68752c48 --- /dev/null +++ b/libc/sysdeps/linux/aarch64/bits/mman.h @@ -0,0 +1,39 @@ +/* Definitions for POSIX memory map interface. Linux/AArch64 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 + . */ + +#ifndef _SYS_MMAN_H +# error "Never use directly; include instead." +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# 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 -- cgit v1.2.3