Share MAP_* flags between more architectures

Message ID	alpine.DEB.2.21.1809260012180.22869@digraph.polyomino.org.uk
State	New
Headers	show Return-Path: <libc-alpha-return-96091-incoming=patchwork.ozlabs.org@sourceware.org> DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:to:subject:message-id:mime-version :content-type; q=dns; s=default; b=bORtLbNxy6Ypw0WnGz2omhAovHIBb H7duzuhBmltaR8Q9cyOUvI6lTVSSqqNZvIZICOh8iqbEVb5ZkjeYe/Ig2pxSy8+D Z6WEu/Mif0l098e/m4T0utm2uP2r6k6CZldOeBe8yaGJWEvYxH83p+QvsTLLVwRe VE4YJn2Php6Hok= Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk Sender: libc-alpha-owner@sourceware.org Date: Wed, 26 Sep 2018 00:13:04 +0000 From: Joseph Myers <joseph@codesourcery.com> To: <libc-alpha@sourceware.org> Subject: Share MAP_* flags between more architectures Message-ID: <alpine.DEB.2.21.1809260012180.22869@digraph.polyomino.org.uk> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII"
Series	Share MAP_* flags between more architectures \| expand Share MAP_* flags between more architectures

diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 99d71ea296..d047b61af7 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -42,7 +42,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \ bits/mman-linux.h bits/mman-shared.h bits/ptrace-shared.h \ bits/siginfo-arch.h bits/siginfo-consts-arch.h \ bits/procfs.h bits/procfs-id.h bits/procfs-extra.h \ - bits/procfs-prregset.h + bits/procfs-prregset.h bits/mman-map-flags-generic.h tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \ tst-quota tst-sync_file_range tst-sysconf-iov_max tst-ttyname \ diff --git a/sysdeps/unix/sysv/linux/bits/mman-map-flags-generic.h b/sysdeps/unix/sysv/linux/bits/mman-map-flags-generic.h new file mode 100644 index 0000000000..360584351e --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/mman-map-flags-generic.h @@ -0,0 +1,42 @@ +/* Definitions for POSIX memory map interface. Linux/generic version. + Copyright (C) 1997-2018 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/>. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman-map-flags-generic.h> directly; include <sys/mman.h> instead." +#endif + +/* These definitions are appropriate for architectures that, in the + Linux kernel, either have no uapi/asm/mman.h, or have one that + includes asm-generic/mman.h without any changes to the values of + the MAP_* flags defined in that header. */ + +#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_SYNC 0x80000 /* Perform synchronous page + faults for the mapping. */ +# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap + underlying mapping. */ +#endif diff --git a/sysdeps/unix/sysv/linux/bits/mman.h b/sysdeps/unix/sysv/linux/bits/mman.h index e98b5204bf..178a8edd90 100644 --- a/sysdeps/unix/sysv/linux/bits/mman.h +++ b/sysdeps/unix/sysv/linux/bits/mman.h @@ -23,23 +23,10 @@ /* These definitions are appropriate for architectures that, in the Linux kernel, either have no uapi/asm/mman.h, or have one that includes asm-generic/mman.h without any changes or additions - relevant to glibc. */ + relevant to glibc. If there are additions relevant to glibc, an + architecture-specific bits/mman.h is needed. */ -#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_SYNC 0x80000 /* Perform synchronous page - faults for the mapping. */ -# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap - underlying mapping. */ -#endif +#include <bits/mman-map-flags-generic.h> /* Include generic Linux declarations. */ #include <bits/mman-linux.h> diff --git a/sysdeps/unix/sysv/linux/ia64/bits/mman.h b/sysdeps/unix/sysv/linux/ia64/bits/mman.h index 51071fda56..a1f649c270 100644 --- a/sysdeps/unix/sysv/linux/ia64/bits/mman.h +++ b/sysdeps/unix/sysv/linux/ia64/bits/mman.h @@ -25,21 +25,10 @@ /* 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. */ -# define MAP_SYNC 0x80000 /* Perform synchronous page - faults for the mapping. */ -# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap - underlying mapping. */ #endif +#include <bits/mman-map-flags-generic.h> + /* Include generic Linux declarations. */ #include <bits/mman-linux.h> diff --git a/sysdeps/unix/sysv/linux/x86/bits/mman.h b/sysdeps/unix/sysv/linux/x86/bits/mman.h index d897b8a2b2..b1d9cbd815 100644 --- a/sysdeps/unix/sysv/linux/x86/bits/mman.h +++ b/sysdeps/unix/sysv/linux/x86/bits/mman.h @@ -28,22 +28,7 @@ # 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. */ -# define MAP_SYNC 0x80000 /* Perform synchronous page - faults for the mapping. */ -# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap - underlying mapping. */ -#endif +#include <bits/mman-map-flags-generic.h> /* Include generic Linux declarations. */ #include <bits/mman-linux.h>

Share MAP_* flags between more architectures

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