ia64/xen-unstable

view extras/mini-os/include/fcntl.h @ 17042:a905c582a406

Add stubdomain support. See stubdom/README for usage details.

- Move PAGE_SIZE and STACK_SIZE into __PAGE_SIZE and __STACK_SIZE in
arch_limits.h so as to permit getting them from there without
pulling all the internal Mini-OS defines.
- Setup a xen-elf cross-compilation environment in stubdom/cross-root
- Add a POSIX layer on top of Mini-OS by linking against the newlib C
library and lwIP, and implementing the Unixish part in mini-os/lib/sys.c
- Cross-compile zlib and libpci too.
- Add an xs.h-compatible layer on top of Mini-OS' xenbus.
- Cross-compile libxc with an additional xc_minios.c and a few things
disabled.
- Cross-compile ioemu with an additional block-vbd, but without sound,
tpm and other details. A few hacks are needed:
- Align ide and scsi buffers at least on sector size to permit
direct transmission to the block backend. While we are at it, just
page-align it to possibly save a segment. Also, limit the scsi
buffer size because of limitations of the block paravirtualization
protocol.
- Allocate big tables dynamically rather that letting them go to
bss: when Mini-OS gets installed in memory, bss is not lazily
allocated, and doing so during Mini-OS is unnecessarily trick while
we can simply use malloc.
- Had to change the Mini-OS compilation somehow, so as to export
Mini-OS compilation flags to the Makefiles of libxc and ioemu.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue Feb 12 14:35:39 2008 +0000 (2008-02-12)
parents 06d84bf87159
children 1eae3adc5bf7
line source
1 #ifndef _I386_FCNTL_H
2 #define _I386_FCNTL_H
4 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
5 located on an ext2 file system */
6 #define O_ACCMODE 0003
7 #define O_RDONLY 00
8 #define O_WRONLY 01
9 #define O_RDWR 02
10 #define O_CREAT 0100 /* not fcntl */
11 #define O_EXCL 0200 /* not fcntl */
12 #define O_NOCTTY 0400 /* not fcntl */
13 #define O_TRUNC 01000 /* not fcntl */
14 #define O_APPEND 02000
15 #define O_NONBLOCK 04000
16 #define O_NDELAY O_NONBLOCK
17 #define O_SYNC 010000
18 #define FASYNC 020000 /* fcntl, for BSD compatibility */
19 #define O_DIRECT 040000 /* direct disk access hint */
20 #define O_LARGEFILE 0100000
21 #define O_DIRECTORY 0200000 /* must be a directory */
22 #define O_NOFOLLOW 0400000 /* don't follow links */
23 #define O_NOATIME 01000000
25 #define F_DUPFD 0 /* dup */
26 #define F_GETFD 1 /* get close_on_exec */
27 #define F_SETFD 2 /* set/clear close_on_exec */
28 #define F_GETFL 3 /* get file->f_flags */
29 #define F_SETFL 4 /* set file->f_flags */
30 #define F_GETLK 5
31 #define F_SETLK 6
32 #define F_SETLKW 7
34 #define F_SETOWN 8 /* for sockets. */
35 #define F_GETOWN 9 /* for sockets. */
36 #define F_SETSIG 10 /* for sockets. */
37 #define F_GETSIG 11 /* for sockets. */
39 #define F_GETLK64 12 /* using 'struct flock64' */
40 #define F_SETLK64 13
41 #define F_SETLKW64 14
43 /* for F_[GET|SET]FL */
44 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
46 /* for posix fcntl() and lockf() */
47 #define F_RDLCK 0
48 #define F_WRLCK 1
49 #define F_UNLCK 2
51 /* for old implementation of bsd flock () */
52 #define F_EXLCK 4 /* or 3 */
53 #define F_SHLCK 8 /* or 4 */
55 /* for leases */
56 #define F_INPROGRESS 16
58 /* operations for bsd flock(), also used by the kernel implementation */
59 #define LOCK_SH 1 /* shared lock */
60 #define LOCK_EX 2 /* exclusive lock */
61 #define LOCK_NB 4 /* or'd with one of the above to prevent
62 blocking */
63 #define LOCK_UN 8 /* remove lock */
65 #define LOCK_MAND 32 /* This is a mandatory flock */
66 #define LOCK_READ 64 /* ... Which allows concurrent read operations */
67 #define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
68 #define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
70 /*
71 struct flock {
72 short l_type;
73 short l_whence;
74 off_t l_start;
75 off_t l_len;
76 pid_t l_pid;
77 };
79 struct flock64 {
80 short l_type;
81 short l_whence;
82 loff_t l_start;
83 loff_t l_len;
84 pid_t l_pid;
85 };
87 #define F_LINUX_SPECIFIC_BASE 1024
88 */
90 int open(const char *path, int flags, ...);
91 int fcntl(int fd, int cmd, ...);
92 #endif