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
52 static int __used
dummy_proc_read(void * arg,caddr_t addr,void * buf,size_t size)53 dummy_proc_read(void *arg, caddr_t addr, void *buf, size_t size)
54 {
55 return TD_ERR_ERR;
56 }
57
58 static int __used
dummy_proc_write(void * arg,caddr_t addr,void * buf,size_t size)59 dummy_proc_write(void *arg, caddr_t addr, void *buf, size_t size)
60 {
61 return TD_ERR_ERR;
62 }
63
64 static int __used
dummy_proc_lookup(void * arg,const char * sym,caddr_t * addr)65 dummy_proc_lookup(void *arg, const char *sym, caddr_t *addr)
66 {
67 return TD_ERR_ERR;
68 }
69
70 static int __used
dummy_proc_regsize(void * arg,int regset,size_t * size)71 dummy_proc_regsize(void *arg, int regset, size_t *size)
72 {
73 return TD_ERR_ERR;
74 }
75
76 static int __used
dummy_proc_getregs(void * arg,int regset,int lwp,void * buf)77 dummy_proc_getregs(void *arg, int regset, int lwp, void *buf)
78 {
79 return TD_ERR_ERR;
80 }
81
82 static int __used
dummy_proc_setregs(void * arg,int regset,int lwp,void * buf)83 dummy_proc_setregs(void *arg, int regset, int lwp, void *buf)
84 {
85 return TD_ERR_ERR;
86 }
87
88 /* Minimalistic basic implementation */
89
90 static int __used
basic_proc_read(void * arg,caddr_t addr,void * buf,size_t size)91 basic_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
98 static int __used
basic_proc_write(void * arg,caddr_t addr,void * buf,size_t size)99 basic_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
106 static int __used
basic_proc_lookup(void * arg,const char * sym,caddr_t * addr)107 basic_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