1/*	$NetBSD: h_common.h,v 1.2 2016/11/19 02:30:54 kamil Exp $	*/
2
3/*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29
30#ifndef H_COMMON_H
31#define H_COMMON_H
32
33#include <sys/cdefs.h>
34#include <dlfcn.h>
35#include <pthread_dbg.h>
36#include <string.h>
37
38#include <atf-c.h>
39
40#define PTHREAD_REQUIRE(x) \
41    do { \
42        int ret = (x); \
43        ATF_REQUIRE_MSG(ret == 0, "%s: %s", #x, strerror(ret)); \
44    } while (0)
45
46#define PTHREAD_REQUIRE_STATUS(x, v) \
47    do { \
48        int ret = (x); \
49        ATF_REQUIRE_MSG(ret == (v), "%s: %s", #x, strerror(ret)); \
50    } while (0)
51
52static int __used
53dummy_proc_read(void *arg, caddr_t addr, void *buf, size_t size)
54{
55	return TD_ERR_ERR;
56}
57
58static int __used
59dummy_proc_write(void *arg, caddr_t addr, void *buf, size_t size)
60{
61	return TD_ERR_ERR;
62}
63
64static int __used
65dummy_proc_lookup(void *arg, const char *sym, caddr_t *addr)
66{
67	return TD_ERR_ERR;
68}
69
70static int __used
71dummy_proc_regsize(void *arg, int regset, size_t *size)
72{
73	return TD_ERR_ERR;
74}
75
76static int __used
77dummy_proc_getregs(void *arg, int regset, int lwp, void *buf)
78{
79	return TD_ERR_ERR;
80}
81
82static int __used
83dummy_proc_setregs(void *arg, int regset, int lwp, void *buf)
84{
85	return TD_ERR_ERR;
86}
87
88/* Minimalistic basic implementation */
89
90static int __used
91basic_proc_read(void *arg, caddr_t addr, void *buf, size_t size)
92{
93	memcpy(buf, addr, size);
94
95	return TD_ERR_OK;
96}
97
98static int __used
99basic_proc_write(void *arg, caddr_t addr, void *buf, size_t size)
100{
101	memcpy(addr, buf, size);
102
103	return TD_ERR_OK;
104}
105
106static int __used
107basic_proc_lookup(void *arg, const char *sym, caddr_t *addr)
108{
109	void *handle;
110	void *symbol;
111
112	ATF_REQUIRE_MSG((handle = dlopen(NULL, RTLD_LOCAL | RTLD_LAZY))
113	    != NULL, "dlopen(3) failed: %s", dlerror());
114
115	symbol = dlsym(handle, sym);
116
117	ATF_REQUIRE_MSG(dlclose(handle) == 0, "dlclose(3) failed: %s",
118	    dlerror());
119
120	if (!symbol)
121		return TD_ERR_NOSYM;
122
123	*addr = (caddr_t)(uintptr_t)symbol;
124
125	return TD_ERR_OK;
126}
127
128#endif // H_COMMON_H
129