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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2018-01-28 04:30:35 +0000
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2018-02-03 19:29:51 +0000
commit7cc754bc93eafa78695ec03bb0e4e8256d52c76d (patch)
treedc55c7555ce60aa779ea6e71c5856e4d6db74a6c /libc
parent8948296356072119a07c6b9435dc16bdc74bdc56 (diff)
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.
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/aarch64/bits/mman.h39
-rw-r--r--libc/sysdeps/linux/alpha/bits/mman.h104
-rw-r--r--libc/sysdeps/linux/arm/bits/mman.h40
-rw-r--r--libc/sysdeps/linux/common/bits/mman-common.h80
-rw-r--r--libc/sysdeps/linux/common/bits/mman-linux.h117
-rw-r--r--libc/sysdeps/linux/common/bits/mman-shared.h75
-rw-r--r--libc/sysdeps/linux/hppa/bits/mman.h34
-rw-r--r--libc/sysdeps/linux/i386/bits/mman.h44
-rw-r--r--libc/sysdeps/linux/ia64/bits/mman.h38
-rw-r--r--libc/sysdeps/linux/m68k/bits/mman.h40
-rw-r--r--libc/sysdeps/linux/microblaze/bits/mman.h39
-rw-r--r--libc/sysdeps/linux/mips/bits/mman.h80
-rw-r--r--libc/sysdeps/linux/nds32/bits/mman.h72
-rw-r--r--libc/sysdeps/linux/nios2/bits/mman.h39
-rw-r--r--libc/sysdeps/linux/powerpc/bits/mman.h75
-rw-r--r--libc/sysdeps/linux/sh/bits/mman.h40
-rw-r--r--libc/sysdeps/linux/sparc/bits/mman.h75
-rw-r--r--libc/sysdeps/linux/sparc64/bits/mman.h76
-rw-r--r--libc/sysdeps/linux/x86_64/bits/mman.h42
-rw-r--r--libc/sysdeps/linux/xtensa/bits/mman.h84
20 files changed, 651 insertions, 582 deletions
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
+ <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. */
+
+/* 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 <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/alpha/bits/mman.h b/libc/sysdeps/linux/alpha/bits/mman.h
index a9820d596..7d9b622af 100644
--- a/libc/sysdeps/linux/alpha/bits/mman.h
+++ b/libc/sysdeps/linux/alpha/bits/mman.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/Alpha version.
- Copyright (C) 1997, 1998, 2000, 2003, 2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -13,7 +12,7 @@
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
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_MMAN_H
@@ -23,43 +22,7 @@
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x100 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0
-# define MAP_ANONYMOUS 0x10 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-#endif
-
-/* Not used by Linux, but here to make sure we don't clash with
- OSF/1 defines. */
-#if 0 && defined __USE_BSD
-# define MAP_HASSEMAPHORE 0x0200
-# define MAP_INHERIT 0x0400
-# define MAP_UNALIGNED 0x0800
-#endif
+#define __MAP_ANONYMOUS 0x10 /* Don't use a file. */
/* These are Linux-specific. */
#ifdef __USE_MISC
@@ -70,50 +33,33 @@
# define MAP_NORESERVE 0x10000 /* Don't check for reservations. */
# define MAP_POPULATE 0x20000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x40000 /* Do not block on IO. */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x80000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x100000 /* Create huge page mapping. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 2 /* Synchronous memory sync. */
-#define MS_INVALIDATE 4 /* Invalidate the caches. */
-
/* Flags for `mlockall'. */
-#define MCL_CURRENT 8192 /* Lock all currently mapped pages. */
-#define MCL_FUTURE 16384 /* Lock all additions to address
- space. */
+#define MCL_CURRENT 8192
+#define MCL_FUTURE 16384
+#define MCL_ONFAULT 32768
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
+#include <bits/mman-linux.h>
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 6 /* Don't need these pages. */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
+/* Values that differ from standard <mman-linux.h>. For the most part newer
+ values are shared, but older values are skewed. */
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 6 /* Don't need these pages. */
-#endif
+#undef MAP_FIXED
+#define MAP_FIXED 0x100
-/* Not used by Linux, but here to make sure we don't clash with
- OSF/1 defines. */
-#if 0 && defined __USE_BSD
-# define MADV_DONTNEED_COMPAT 4 /* Old version? */
-# define MADV_SPACEAVAIL 5 /* Ensure resources are available. */
+#undef MS_SYNC
+#define MS_SYNC 2
+#undef MS_INVALIDATE
+#define MS_INVALIDATE 4
+
+#ifdef __USE_MISC
+# undef MADV_DONTNEED
+# define MADV_DONTNEED 6
+#endif
+#ifdef __USE_XOPEN2K
+# undef POSIX_MADV_DONTNEED
+# define POSIX_MADV_DONTNEED 6
#endif
diff --git a/libc/sysdeps/linux/arm/bits/mman.h b/libc/sysdeps/linux/arm/bits/mman.h
new file mode 100644
index 000000000..1edc294a8
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/mman.h
@@ -0,0 +1,40 @@
+/* Definitions for POSIX memory map interface. Linux/ARM 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. */
+
+/* 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. */
+# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */
+#endif
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/common/bits/mman-common.h b/libc/sysdeps/linux/common/bits/mman-common.h
index 5b20da4d0..ddd03a8d3 100644
--- a/libc/sysdeps/linux/common/bits/mman-common.h
+++ b/libc/sysdeps/linux/common/bits/mman-common.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/generic version.
- Copyright (C) 1997,2000,2003,2005,2006,2009 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -23,36 +22,6 @@
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0
-# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
@@ -63,49 +32,8 @@
# 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_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
+# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-
-/* Flags for `mlockall'. */
-#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
-#define MCL_FUTURE 2 /* Lock all additions to address
- space. */
-
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
-
-/* only define for MMU targets, no-MMU does not support madvise. */
-#ifdef __ARCH_USE_MMU__
-/* Advice to `madvise'. */
-# ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-# define MADV_MERGEABLE 12 /* KSM may merge identical pages. */
-# define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages. */
-# define MADV_HWPOISON 100 /* Poison a page for testing. */
-# endif
-
-/* The POSIX people had to invent similar names for the same things. */
-# ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
-# endif
-#endif
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/common/bits/mman-linux.h b/libc/sysdeps/linux/common/bits/mman-linux.h
new file mode 100644
index 000000000..6ca08415a
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/mman-linux.h
@@ -0,0 +1,117 @@
+/* Definitions for POSIX memory map interface. Linux generic version.
+ Copyright (C) 2001-2018 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-linux.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. */
+
+
+/* Protections are chosen from these bits, OR'd together. The
+ implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ without PROT_READ. The only guarantees are that no writing will be
+ allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ 0x1 /* Page can be read. */
+#define PROT_WRITE 0x2 /* Page can be written. */
+#define PROT_EXEC 0x4 /* Page can be executed. */
+#define PROT_NONE 0x0 /* Page can not be accessed. */
+#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
+ growsdown vma (mprotect only). */
+#define PROT_GROWSUP 0x02000000 /* Extend change to start of
+ growsup vma (mprotect only). */
+
+/* Sharing types (must choose one and only one of these). */
+#define MAP_SHARED 0x01 /* Share changes. */
+#define MAP_PRIVATE 0x02 /* Changes are private. */
+#ifdef __USE_MISC
+# define MAP_TYPE 0x0f /* Mask for type of mapping. */
+#endif
+
+/* Other flags. */
+#define MAP_FIXED 0x10 /* Interpret addr exactly. */
+#ifdef __USE_MISC
+# define MAP_FILE 0
+# ifdef __MAP_ANONYMOUS
+# define MAP_ANONYMOUS __MAP_ANONYMOUS /* Don't use a file. */
+# else
+# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
+# endif
+# define MAP_ANON MAP_ANONYMOUS
+/* When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. */
+# define MAP_HUGE_SHIFT 26
+# define MAP_HUGE_MASK 0x3f
+#endif
+
+/* Flags to `msync'. */
+#define MS_ASYNC 1 /* Sync memory asynchronously. */
+#define MS_SYNC 4 /* Synchronous memory sync. */
+#define MS_INVALIDATE 2 /* Invalidate the caches. */
+
+/* Flags for `mremap'. */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1
+# define MREMAP_FIXED 2
+#endif
+
+/* only define for MMU targets, no-MMU does not support madvise. */
+#ifdef __ARCH_USE_MMU__
+/* Advice to `madvise'. */
+# ifdef __USE_MISC
+# define MADV_NORMAL 0 /* No further special treatment. */
+# define MADV_RANDOM 1 /* Expect random page references. */
+# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define MADV_WILLNEED 3 /* Will need these pages. */
+# define MADV_DONTNEED 4 /* Don't need these pages. */
+# define MADV_FREE 8 /* Free pages only if memory pressure. */
+# define MADV_REMOVE 9 /* Remove these pages and resources. */
+# define MADV_DONTFORK 10 /* Do not inherit across fork. */
+# define MADV_DOFORK 11 /* Do inherit across fork. */
+# define MADV_MERGEABLE 12 /* KSM may merge identical pages. */
+# define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages. */
+# define MADV_HUGEPAGE 14 /* Worth backing with hugepages. */
+# define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages. */
+# define MADV_DONTDUMP 16 /* Explicity exclude from the core dump,
+ overrides the coredump filter bits. */
+# define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag. */
+# define MADV_WIPEONFORK 18 /* Zero memory on fork, child only. */
+# define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */
+# define MADV_HWPOISON 100 /* Poison a page for testing. */
+# endif
+
+/* The POSIX people had to invent similar names for the same things. */
+# ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+# endif
+#endif
+
+/* Flags for `mlockall'. */
+#ifndef MCL_CURRENT
+# define MCL_CURRENT 1 /* Lock all currently mapped pages. */
+# define MCL_FUTURE 2 /* Lock all additions to address
+ space. */
+# define MCL_ONFAULT 4 /* Lock all pages that are
+ faulted in. */
+#endif
+
+#include <bits/mman-shared.h>
diff --git a/libc/sysdeps/linux/common/bits/mman-shared.h b/libc/sysdeps/linux/common/bits/mman-shared.h
new file mode 100644
index 000000000..c40ae2d1e
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/mman-shared.h
@@ -0,0 +1,75 @@
+/* Memory-mapping-related declarations/definitions, not architecture-specific.
+ Copyright (C) 2017-2018 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-shared.h> directly; include <sys/mman.h> instead."
+#endif
+
+#ifdef __USE_GNU
+/* Flags for memfd_create. */
+# ifndef MFD_CLOEXEC
+# define MFD_CLOEXEC 1U
+# define MFD_ALLOW_SEALING 2U
+# define MFD_HUGETLB 4U
+# endif
+
+/* Flags for mlock2. */
+# ifndef MLOCK_ONFAULT
+# define MLOCK_ONFAULT 1U
+# endif
+
+/* Access rights for pkey_alloc. */
+# ifndef PKEY_DISABLE_ACCESS
+# define PKEY_DISABLE_ACCESS 0x1
+# define PKEY_DISABLE_WRITE 0x2
+# endif
+
+__BEGIN_DECLS
+
+/* Create a new memory file descriptor. NAME is a name for debugging.
+ FLAGS is a combination of the MFD_* constants. */
+int memfd_create (const char *__name, unsigned int __flags) __THROW;
+
+/* Lock pages from ADDR (inclusive) to ADDR + LENGTH (exclusive) into
+ memory. FLAGS is a combination of the MLOCK_* flags above. */
+int mlock2 (const void *__addr, size_t __length, unsigned int __flags) __THROW;
+
+/* Allocate a new protection key, with the PKEY_DISABLE_* bits
+ specified in ACCESS_RIGHTS. The protection key mask for the
+ current thread is updated to match the access privilege for the new
+ key. */
+int pkey_alloc (unsigned int __flags, unsigned int __access_rights) __THROW;
+
+/* Update the access rights for the current thread for KEY, which must
+ have been allocated using pkey_alloc. */
+int pkey_set (int __key, unsigned int __access_rights) __THROW;
+
+/* Return the access rights for the current thread for KEY, which must
+ have been allocated using pkey_alloc. */
+int pkey_get (int _key) __THROW;
+
+/* Free an allocated protection key, which must have been allocated
+ using pkey_alloc. */
+int pkey_free (int __key) __THROW;
+
+/* Apply memory protection flags for KEY to the specified address
+ range. */
+int pkey_mprotect (void *__addr, size_t __len, int __prot, int __pkey) __THROW;
+
+__END_DECLS
+
+#endif /* __USE_GNU */
diff --git a/libc/sysdeps/linux/hppa/bits/mman.h b/libc/sysdeps/linux/hppa/bits/mman.h
index cbde4b8d4..7e0812e39 100644
--- a/libc/sysdeps/linux/hppa/bits/mman.h
+++ b/libc/sysdeps/linux/hppa/bits/mman.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/HPPA version.
- Copyright (C) 1997-2015 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -58,6 +57,8 @@
# define MAP_GROWSDOWN 0x8000 /* Stack-like segment */
# define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables */
# define MAP_NONBLOCK 0x20000 /* Do not block on IO */
+# define MAP_STACK 0x40000 /* Create for process/thread stacks */
+# define MAP_HUGETLB 0x80000 /* Create a huge page mapping */
#endif
/* Flags to "msync" */
@@ -68,6 +69,7 @@
/* Flags to "mlockall" */
#define MCL_CURRENT 1 /* Lock all current mappings */
#define MCL_FUTURE 2 /* Lock all future mappings */
+#define MCL_ONFAULT 4 /* Lock all pages that are faulted in */
/* Flags for `mremap'. */
#ifdef __USE_GNU
@@ -82,27 +84,21 @@
# define MADV_SEQUENTIAL 2 /* Expect sequential page references */
# define MADV_WILLNEED 3 /* Will need these pages */
# define MADV_DONTNEED 4 /* Dont need these pages */
-# define MADV_SPACEAVAIL 5 /* Insure that resources are reserved */
-# define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
-# define MADV_VPS_INHERIT 7 /* Inherit parents page size */
+# define MADV_FREE 8 /* Free pages only if memory pressure. */
# define MADV_REMOVE 9 /* Remove these pages and resources. */
# define MADV_DONTFORK 10 /* Do not inherit across fork. */
# define MADV_DOFORK 11 /* Do inherit across fork. */
# define MADV_MERGEABLE 65 /* KSM may merge identical pages */
# define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */
-#endif
-
-/* The range 12-64 is reserved for page size specification. */
-/* These are Linux-specific. */
-#ifdef __USE_MISC
-# define MADV_4K_PAGES 12 /* Use 4K pages. */
-# define MADV_16K_PAGES 14 /* Use 16K pages. */
-# define MADV_64K_PAGES 16 /* Use 64K pages. */
-# define MADV_256K_PAGES 18 /* Use 256K pages. */
-# define MADV_1M_PAGES 20 /* Use 1 Megabyte pages. */
-# define MADV_4M_PAGES 22 /* Use 4 Megabyte pages. */
-# define MADV_16M_PAGES 24 /* Use 16 Megabyte pages. */
-# define MADV_64M_PAGES 26 /* Use 64 Megabyte pages. */
+# define MADV_HUGEPAGE 67 /* Worth backing with hugepages */
+# define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */
+# define MADV_DONTDUMP 69 /* Explicity exclude from the core dump,
+ overrides the coredump filter bits */
+# define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */
+# define MADV_WIPEONFORK 71 /* Zero memory on fork, child only. */
+# define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK. */
+# define MADV_HWPOISON 100 /* Poison a page for testing. */
+# define MADV_SOFT_OFFLINE 101 /* Soft offline page for testing. */
#endif
/* The POSIX people had to invent similar names for the same things. */
@@ -113,3 +109,5 @@
# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
#endif
+
+#include <bits/mman-shared.h>
diff --git a/libc/sysdeps/linux/i386/bits/mman.h b/libc/sysdeps/linux/i386/bits/mman.h
new file mode 100644
index 000000000..64fee2206
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/mman.h
@@ -0,0 +1,44 @@
+/* Definitions for POSIX memory map interface. Linux/x86 version.
+ Copyright (C) 2001-2018 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. */
+
+/* Other flags. */
+#ifdef __USE_MISC
+# define MAP_32BIT 0x40 /* Only give out 32-bit addresses. */
+#endif
+
+/* 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 <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/ia64/bits/mman.h b/libc/sysdeps/linux/ia64/bits/mman.h
index a9d56ed07..7b61c9cba 100644
--- a/libc/sysdeps/linux/ia64/bits/mman.h
+++ b/libc/sysdeps/linux/ia64/bits/mman.h
@@ -1,4 +1,40 @@
+/* Definitions for POSIX memory map interface. Linux/ia64 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. */
+
+/* These are Linux-specific. */
#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
# define MAP_GROWSUP 0x00200 /* Register 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 <bits/mman-common.h>
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/m68k/bits/mman.h b/libc/sysdeps/linux/m68k/bits/mman.h
new file mode 100644
index 000000000..c486dfa48
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/mman.h
@@ -0,0 +1,40 @@
+/* Definitions for POSIX memory map interface. Linux/m68k 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. */
+
+/* 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. */
+# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */
+#endif
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
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>
diff --git a/libc/sysdeps/linux/mips/bits/mman.h b/libc/sysdeps/linux/mips/bits/mman.h
index ca1497ebc..0619d7a82 100644
--- a/libc/sysdeps/linux/mips/bits/mman.h
+++ b/libc/sysdeps/linux/mips/bits/mman.h
@@ -1,7 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/MIPS version.
- Copyright (C) 1997, 2000, 2003, 2004, 2005, 2006
- Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -14,7 +12,7 @@
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
+ License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_MMAN_H
@@ -24,84 +22,24 @@
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0
-# define MAP_ANONYMOUS 0x0800 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-# define MAP_RENAME MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_NORESERVE 0x0400 /* don't check for reservations */
-# define MAP_ANONYMOUS 0x0800 /* don't use a file */
# define MAP_GROWSDOWN 0x1000 /* stack-like segment */
# define MAP_DENYWRITE 0x2000 /* ETXTBSY */
# define MAP_EXECUTABLE 0x4000 /* mark it as an executable */
# define MAP_LOCKED 0x8000 /* pages are locked */
# define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */
# define MAP_NONBLOCK 0x20000 /* do not block on IO */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x40000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x80000 /* Create huge page mapping. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-
-/* Flags for `mlockall'. */
-#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
-#define MCL_FUTURE 2 /* Lock all additions to address
- space. */
-
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
+#define __MAP_ANONYMOUS 0x0800
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+#ifdef __USE_MISC
+# define MAP_RENAME MAP_ANONYMOUS
#endif
diff --git a/libc/sysdeps/linux/nds32/bits/mman.h b/libc/sysdeps/linux/nds32/bits/mman.h
index ac242e065..c1b263a4c 100644
--- a/libc/sysdeps/linux/nds32/bits/mman.h
+++ b/libc/sysdeps/linux/nds32/bits/mman.h
@@ -4,7 +4,7 @@
*/
/* Definitions for POSIX memory map interface. Linux/NDS32 version.
- Copyright (C) 1997, 2000, 2003, 2004 Free Software Foundation, Inc.
+ 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
@@ -28,37 +28,6 @@
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0x00
-# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-# define MAP_RENAME MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x0100 /* stack-like segment */
@@ -68,40 +37,9 @@
# define MAP_NORESERVE 0x4000 /* don't check for reservations */
# define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */
# define MAP_NONBLOCK 0x10000 /* do not block on IO */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
-#endif
-
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-
-/* Flags for `mlockall'. */
-#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
-#define MCL_FUTURE 2 /* Lock all additions to address
- space. */
-
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-#define MADV_NORMAL 0 /* default page-in behavior */
-#define MADV_RANDOM 1 /* page-in minimum required */
-#define MADV_SEQUENTIAL 2 /* read-ahead aggressively */
-#define MADV_WILLNEED 3 /* pre-fault pages */
-#define MADV_DONTNEED 4 /* discard these pages */
-#endif
-
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
#endif
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/nios2/bits/mman.h b/libc/sysdeps/linux/nios2/bits/mman.h
new file mode 100644
index 000000000..4595e4756
--- /dev/null
+++ b/libc/sysdeps/linux/nios2/bits/mman.h
@@ -0,0 +1,39 @@
+/* Definitions for POSIX memory map interface. Linux/Nios II 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. */
+
+/* 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 <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/powerpc/bits/mman.h b/libc/sysdeps/linux/powerpc/bits/mman.h
index c39e7929d..c42e11718 100644
--- a/libc/sysdeps/linux/powerpc/bits/mman.h
+++ b/libc/sysdeps/linux/powerpc/bits/mman.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/PowerPC version.
- Copyright (C) 1997, 2000, 2003, 2005, 2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -17,41 +16,13 @@
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; iclude <sys/mman.h> instead."
+# 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. */
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x001 /* Share changes. */
-#define MAP_PRIVATE 0x002 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x00f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x010 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0x000
-# define MAP_ANONYMOUS 0x020 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-#endif
+#define PROT_SAO 0x10 /* Strong Access Ordering. */
/* These are Linux-specific. */
#ifdef __USE_MISC
@@ -62,44 +33,16 @@
# define MAP_NORESERVE 0x00040 /* Don't check for reservations. */
# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-
/* Flags for `mlockall'. */
#define MCL_CURRENT 0x2000 /* Lock all currently mapped pages. */
#define MCL_FUTURE 0x4000 /* Lock all additions to address
space. */
+#define MCL_ONFAULT 0x8000 /* Lock all pages that are
+ faulted in. */
-
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
-
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
-
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
-#endif
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/sh/bits/mman.h b/libc/sysdeps/linux/sh/bits/mman.h
new file mode 100644
index 000000000..9ae83299a
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/mman.h
@@ -0,0 +1,40 @@
+/* Definitions for POSIX memory map interface. Linux/SH 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 include this file directly. Use <sys/mman.h> 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 0x0100 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x0800 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x2000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x8000 /* 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. */
+# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */
+#endif
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/sparc/bits/mman.h b/libc/sysdeps/linux/sparc/bits/mman.h
index cf1d18096..4dc62bbeb 100644
--- a/libc/sysdeps/linux/sparc/bits/mman.h
+++ b/libc/sysdeps/linux/sparc/bits/mman.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/SPARC version.
- Copyright (C) 1997,1999,2000,2003,2005,2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -24,36 +23,6 @@
But the kernel header is not namespace clean. */
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0x00
-# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-# define MAP_RENAME MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x0200 /* Stack-like segment. */
@@ -64,44 +33,20 @@
# define _MAP_NEW 0x80000000 /* Binary compatibility with SunOS. */
# define MAP_POPULATE 0x8000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-
/* Flags for `mlockall'. */
#define MCL_CURRENT 0x2000 /* Lock all currently mapped pages. */
#define MCL_FUTURE 0x4000 /* Lock all additions to address
space. */
+#define MCL_ONFAULT 0x8000 /* Lock all pages that are
+ faulted in. */
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
-
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_FREE 5 /* Content can be freed (Solaris). */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
-
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+/* Other flags. */
+#ifdef __USE_MISC
+# define MAP_RENAME MAP_ANONYMOUS
#endif
diff --git a/libc/sysdeps/linux/sparc64/bits/mman.h b/libc/sysdeps/linux/sparc64/bits/mman.h
index 9ac2b7011..e4cd1bb2b 100644
--- a/libc/sysdeps/linux/sparc64/bits/mman.h
+++ b/libc/sysdeps/linux/sparc64/bits/mman.h
@@ -1,5 +1,5 @@
-/* Definitions for POSIX memory map interface. Linux/SPARC version.
- Copyright (C) 1997,1999,2000,2003,2005,2006 Free Software Foundation, Inc.
+/* Definitions for POSIX memory map interface. Linux/SPARC64 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
@@ -23,36 +23,6 @@
But the kernel header is not namespace clean. */
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0x00
-# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-# define MAP_RENAME MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x0200 /* Stack-like segment. */
@@ -63,44 +33,20 @@
# define _MAP_NEW 0x80000000 /* Binary compatibility with SunOS. */
# define MAP_POPULATE 0x8000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
-
/* Flags for `mlockall'. */
#define MCL_CURRENT 0x2000 /* Lock all currently mapped pages. */
#define MCL_FUTURE 0x4000 /* Lock all additions to address
space. */
+#define MCL_ONFAULT 0x8000 /* Lock all pages that are
+ faulted in. */
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
-
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_FREE 5 /* Content can be freed (Solaris). */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
-
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+/* Other flags. */
+#ifdef __USE_MISC
+# define MAP_RENAME MAP_ANONYMOUS
#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/mman.h b/libc/sysdeps/linux/x86_64/bits/mman.h
index a0b7a0e97..ab163b3e3 100644
--- a/libc/sysdeps/linux/x86_64/bits/mman.h
+++ b/libc/sysdeps/linux/x86_64/bits/mman.h
@@ -1,4 +1,44 @@
+/* Definitions for POSIX memory map interface. Linux/x86_64 version.
+ Copyright (C) 2001-2018 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. */
+
+/* Other flags. */
#ifdef __USE_MISC
# define MAP_32BIT 0x40 /* Only give out 32-bit addresses. */
#endif
-#include <bits/mman-common.h>
+
+/* 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 <bits/mman-linux.h>
diff --git a/libc/sysdeps/linux/xtensa/bits/mman.h b/libc/sysdeps/linux/xtensa/bits/mman.h
index a42e92663..60be03bda 100644
--- a/libc/sysdeps/linux/xtensa/bits/mman.h
+++ b/libc/sysdeps/linux/xtensa/bits/mman.h
@@ -1,6 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/Xtensa version.
- Copyright (C) 1997, 2000, 2007 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+ 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
@@ -20,86 +19,25 @@
# 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. */
-
-
-/* Protections are chosen from these bits, OR'd together. The
- implementation does not necessarily support PROT_EXEC or PROT_WRITE
- without PROT_READ. The only guarantees are that no writing will be
- allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ 0x1 /* Page can be read. */
-#define PROT_WRITE 0x2 /* Page can be written. */
-#define PROT_EXEC 0x4 /* Page can be executed. */
-#define PROT_NONE 0x0 /* Page can not be accessed. */
-#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
- growsdown vma (mprotect only). */
-#define PROT_GROWSUP 0x02000000 /* Extend change to start of
- growsup vma (mprotect only). */
-
-/* Sharing types (must choose one and only one of these). */
-#define MAP_SHARED 0x01 /* Share changes. */
-#define MAP_PRIVATE 0x02 /* Changes are private. */
-#ifdef __USE_MISC
-# define MAP_TYPE 0x0f /* Mask for type of mapping. */
-#endif
-
-/* Other flags. */
-#define MAP_FIXED 0x10 /* Interpret addr exactly. */
-#ifdef __USE_MISC
-# define MAP_FILE 0
-# define MAP_ANONYMOUS 0x800 /* Don't use a file. */
-# define MAP_ANON MAP_ANONYMOUS
-# define MAP_RENAME MAP_ANONYMOUS
-#endif
-
/* These are Linux-specific. */
#ifdef __USE_MISC
+# define MAP_NORESERVE 0x0400 /* Don't check for reservations. */
# define MAP_GROWSDOWN 0x1000 /* Stack-like segment. */
-# define MAP_DENYWRITE 0x2000 /* ETXTBSY */
+# define MAP_DENYWRITE 0x2000 /* ETXTBSY */
# define MAP_EXECUTABLE 0x4000 /* Mark it as an executable. */
# define MAP_LOCKED 0x8000 /* Lock the mapping. */
-# define MAP_NORESERVE 0x0400 /* Don't check for reservations. */
# define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x20000 /* Do not block on IO. */
-# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could
- be uninitialized. */
+# define MAP_STACK 0x40000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x80000 /* Create huge page mapping. */
+# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */
#endif
-/* Flags to `msync'. */
-#define MS_ASYNC 1 /* Sync memory asynchronously. */
-#define MS_SYNC 4 /* Synchronous memory sync. */
-#define MS_INVALIDATE 2 /* Invalidate the caches. */
+#define __MAP_ANONYMOUS 0x0800 /* Don't use a file */
-/* Flags for `mlockall'. */
-#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
-#define MCL_FUTURE 2 /* Lock all additions to address
- space. */
-
-/* Flags for `mremap'. */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE 1
-# define MREMAP_FIXED 2
-#endif
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
-/* Advice to `madvise'. */
-#ifdef __USE_BSD
-# define MADV_NORMAL 0 /* No further special treatment. */
-# define MADV_RANDOM 1 /* Expect random page references. */
-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define MADV_WILLNEED 3 /* Will need these pages. */
-# define MADV_DONTNEED 4 /* Don't need these pages. */
-# define MADV_REMOVE 9 /* Remove these pages and resources. */
-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
-# define MADV_DOFORK 11 /* Do inherit across fork. */
-#endif
-
-/* The POSIX people had to invent similar names for the same things. */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+#ifdef __USE_MISC
+# define MAP_RENAME MAP_ANONYMOUS
#endif