1 /* $NetBSD: rumpuser_int.h,v 1.11 2022/04/19 20:32:17 rillig Exp $ */
2
3 /*
4 * Copyright (c) 2008 Antti Kantee. All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <stdlib.h>
29
30 #include <rump/rumpuser.h>
31
32 #define seterror(value) do { if (error) *error = value;} while (0)
33
34 extern struct rumpuser_hyperup rumpuser__hyp;
35
36 static inline void
rumpkern_unsched(int * nlocks,void * interlock)37 rumpkern_unsched(int *nlocks, void *interlock)
38 {
39
40 rumpuser__hyp.hyp_backend_unschedule(0, nlocks, interlock);
41 }
42
43 static inline void
rumpkern_sched(int nlocks,void * interlock)44 rumpkern_sched(int nlocks, void *interlock)
45 {
46
47 rumpuser__hyp.hyp_backend_schedule(nlocks, interlock);
48 }
49
50 #define KLOCK_WRAP(a) \
51 do { \
52 int nlocks; \
53 rumpkern_unsched(&nlocks, NULL); \
54 a; \
55 rumpkern_sched(nlocks, NULL); \
56 } while (0)
57
58 #define DOCALL(rvtype, call) \
59 { \
60 rvtype rv; \
61 rv = call; \
62 if (rv == -1) \
63 seterror(errno); \
64 else \
65 seterror(0); \
66 return rv; \
67 }
68
69 #define DOCALL_KLOCK(rvtype, call) \
70 { \
71 rvtype rv; \
72 int nlocks; \
73 rumpkern_unsched(&nlocks, NULL); \
74 rv = call; \
75 rumpkern_sched(nlocks, NULL); \
76 if (rv == -1) \
77 seterror(errno); \
78 else \
79 seterror(0); \
80 return rv; \
81 }
82
83 void rumpuser__thrinit(void);
84
85 #define NOFAIL(a) do {if (!(a)) abort();} while (0)
86
87 #define NOFAIL_ERRNO(a) \
88 do { \
89 int fail_rv = (a); \
90 if (fail_rv) { \
91 printf("panic: rumpuser fatal failure %d (%s)\n", \
92 fail_rv, strerror(fail_rv)); \
93 abort(); \
94 } \
95 } while (0)
96
97 int rumpuser__sig_rump2host(int);
98 int rumpuser__errtrans(int);
99 #ifdef __NetBSD__
100 #define ET(_v_) return (_v_);
101 #else
102 #define ET(_v_) return (_v_) ? rumpuser__errtrans(_v_) : 0;
103 #endif
104
105 int rumpuser__random_init(void);
106