3 // Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef H_VSERVER_SYSCALL_INTERNAL_H
20 #define H_VSERVER_SYSCALL_INTERNAL_H
26 #include <asm/unistd.h>
29 #ifndef __NR_sys_vserver
30 # define __NR_sys_vserver 273
34 #define VC_SUFFIX else (void)((void)0
35 #define CALL_VC_NOOP (void)0
36 #define CALL_VC_GENERAL(ID, SUFFIX, FUNC, ...) \
37 VC_PREFIX; VC_SELECT(ID) return FUNC ## _ ## SUFFIX(__VA_ARGS__); VC_SUFFIX
40 # define VC_SELECT(ID) case ID: if(1)
41 # define CALL_VC(...) \
42 switch (utilvserver_checkCompatVersion()&~0xff) { \
43 case -1 : if (1) break; \
44 VC_SUFFIX, __VA_ARGS__ , VC_PREFIX; \
45 default : errno = EINVAL; \
49 # define VC_SELECT(ID) if (1)
50 # define CALL_VC(...) \
51 if (1) {} VC_SUFFIX, __VA_ARGS__, VC_PREFIX; \
52 errno = ENOSYS; return -1
55 #ifdef VC_ENABLE_API_COMPAT
56 # define CALL_VC_COMPAT(F,...) CALL_VC_GENERAL(0x00010000, compat, F, __VA_ARGS__)
58 # define CALL_VC_COMPAT(F,...) CALL_VC_NOOP
61 #ifdef VC_ENABLE_API_LEGACY
62 # define CALL_VC_LEGACY(F,...) CALL_VC_GENERAL(0x00000000, legacy, F, __VA_ARGS__)
64 # define CALL_VC_LEGACY(F,...) CALL_VC_NOOP
67 #ifdef VC_ENABLE_API_V11
68 # define CALL_VC_V11(F,...) CALL_VC_GENERAL(0x00010000, v11, F, __VA_ARGS__)
70 # define CALL_VC_V11(F,...) CALL_VC_NOOP
74 # define CTX_KERNEL2USER(X) (((X)==(uint32_t)(-1)) ? VC_NOCTX : \
75 ((X)==(uint32_t)(-2)) ? VC_SAMECTX : \
78 # define CTX_USER2KERNEL(X) (((X)==VC_RANDCTX) ? (uint32_t)(-1) : \
79 ((X)==VC_SAMECTX) ? (uint32_t)(-2) : \
82 # define CTX_USER2KERNEL(X) (X)
83 # define CTX_KERNEL2USER(X) (X)
90 #ifndef HAVE_SYS_VIRTUAL_CONTEXT
91 #if defined(__pic__) && defined(__i386)
92 inline static UNUSED ALWAYSINLINE
93 int sys_vserver(uint32_t cmd, uint32_t id, void *data)
95 return syscall(__NR_sys_vserver, cmd, id, data);
98 inline static UNUSED ALWAYSINLINE
99 _syscall3(int, sys_vserver,
100 uint32_t, cmd, uint32_t, id, void *, data)
104 size_t utilvserver_uint2str(char *buf, size_t len,
105 unsigned int val, unsigned char base);
106 int utilvserver_checkCompatVersion();
113 #endif // H_VSERVER_SYSCALL_INTERNAL_H