From 6c173b3c09548fd5cd82de08646dfe939ec9416e Mon Sep 17 00:00:00 2001 From: blueswir1 Date: Sat, 29 Nov 2008 14:05:16 +0000 Subject: Prepare for handling different BSD mmap() flags git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5809 c046a42c-6fe2-441c-8c8c-71466251a162 --- bsd-user/bsd-mman.h | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++ bsd-user/mmap.c | 9 ++-- 2 files changed, 126 insertions(+), 4 deletions(-) create mode 100644 bsd-user/bsd-mman.h (limited to 'bsd-user') diff --git a/bsd-user/bsd-mman.h b/bsd-user/bsd-mman.h new file mode 100644 index 000000000..910e8c192 --- /dev/null +++ b/bsd-user/bsd-mman.h @@ -0,0 +1,121 @@ +/*- + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)mman.h 8.2 (Berkeley) 1/9/95 + * $FreeBSD: src/sys/sys/mman.h,v 1.42 2008/03/28 04:29:27 ps Exp $ + */ + +#define TARGET_FREEBSD_MAP_RESERVED0080 0x0080 /* previously misimplemented MAP_INHERIT */ +#define TARGET_FREEBSD_MAP_RESERVED0100 0x0100 /* previously unimplemented MAP_NOEXTEND */ +#define TARGET_FREEBSD_MAP_STACK 0x0400 /* region grows down, like a stack */ +#define TARGET_FREEBSD_MAP_NOSYNC 0x0800 /* page to but do not sync underlying file */ + +#define TARGET_FREEBSD_MAP_FLAGMASK 0x1ff7 + +/* $NetBSD: mman.h,v 1.42 2008/11/18 22:13:49 ad Exp $ */ + +/*- + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)mman.h 8.2 (Berkeley) 1/9/95 + */ +#define TARGET_NETBSD_MAP_INHERIT 0x0080 /* region is retained after exec */ +#define TARGET_NETBSD_MAP_TRYFIXED 0x0400 /* attempt hint address, even within break */ +#define TARGET_NETBSD_MAP_WIRED 0x0800 /* mlock() mapping when it is established */ + +#define TARGET_NETBSD_MAP_STACK 0x2000 /* allocated from memory, swap space (stack) */ + +#define TARGET_NETBSD_MAP_FLAGMASK 0x3ff7 + +/* $OpenBSD: mman.h,v 1.18 2003/07/21 22:52:19 tedu Exp $ */ +/* $NetBSD: mman.h,v 1.11 1995/03/26 20:24:23 jtc Exp $ */ + +/*- + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)mman.h 8.1 (Berkeley) 6/2/93 + */ + +#define TARGET_OPENBSD_MAP_INHERIT 0x0080 /* region is retained after exec */ +#define TARGET_OPENBSD_MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ +#define TARGET_OPENBSD_MAP_TRYFIXED 0x0400 /* attempt hint address, even within heap */ + +#define TARGET_OPENBSD_MAP_FLAGMASK 0x17f7 + +// XXX +#define TARGET_BSD_MAP_FLAGMASK 0x3ff7 diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c index 754268ce7..94c5fbee5 100644 --- a/bsd-user/mmap.c +++ b/bsd-user/mmap.c @@ -27,6 +27,7 @@ #include "qemu.h" #include "qemu-common.h" +#include "bsd-mman.h" //#define DEBUG_MMAP @@ -223,7 +224,7 @@ static int mmap_frag(abi_ulong real_start, if (!(flags & MAP_ANON)) { /* msync() won't work here, so we return an error if write is possible while it is a shared mapping */ - if ((flags & MAP_FLAGMASK) == MAP_SHARED && + if ((flags & TARGET_BSD_MAP_FLAGMASK) == MAP_SHARED && (prot & PROT_WRITE)) return -EINVAL; @@ -323,7 +324,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, printf("MAP_FIXED "); if (flags & MAP_ANON) printf("MAP_ANON "); - switch(flags & MAP_FLAGMASK) { + switch(flags & TARGET_BSD_MAP_FLAGMASK) { case MAP_PRIVATE: printf("MAP_PRIVATE "); break; @@ -331,7 +332,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, printf("MAP_SHARED "); break; default: - printf("[MAP_FLAGMASK=0x%x] ", flags & MAP_FLAGMASK); + printf("[MAP_FLAGMASK=0x%x] ", flags & TARGET_BSD_MAP_FLAGMASK); break; } printf("fd=%d offset=" TARGET_FMT_lx "\n", fd, offset); @@ -396,7 +397,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot, (offset & ~qemu_host_page_mask) != (start & ~qemu_host_page_mask)) { /* msync() won't work here, so we return an error if write is possible while it is a shared mapping */ - if ((flags & MAP_FLAGMASK) == MAP_SHARED && + if ((flags & TARGET_BSD_MAP_FLAGMASK) == MAP_SHARED && (prot & PROT_WRITE)) { errno = EINVAL; goto fail; -- cgit v1.2.3