1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.
* All rights reserved.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#define TEST_TRACE 0
#if TEST_TRACE
#define DEBUG_TRACE (RTEMS_RTL_TRACE_DETAIL | \
RTEMS_RTL_TRACE_WARNING | \
RTEMS_RTL_TRACE_LOAD | \
RTEMS_RTL_TRACE_UNLOAD | \
RTEMS_RTL_TRACE_SYMBOL | \
RTEMS_RTL_TRACE_RELOC | \
RTEMS_RTL_TRACE_ALLOCATOR | \
RTEMS_RTL_TRACE_UNRESOLVED | \
RTEMS_RTL_TRACE_ARCHIVES | \
RTEMS_RTL_TRACE_GLOBAL_SYM | \
RTEMS_RTL_TRACE_DEPENDENCY)
#define DL_DEBUG_TRACE DEBUG_TRACE /* RTEMS_RTL_TRACE_ALL */
#define DL_RTL_CMDS 1
#else
#define DL_DEBUG_TRACE 0
#define DL_RTL_CMDS 0
#endif
#include <dlfcn.h>
#include "dl-load.h"
#include <tmacros.h>
#include <rtems/rtl/rtl-shell.h>
#include <rtems/rtl/rtl-trace.h>
typedef int (*call_sig)(void);
static void dl_load_dump (void)
{
#if DL_RTL_CMDS
char* list[] = { "rtl", "list", NULL };
char* sym[] = { "rtl", "sym", NULL };
printf ("RTL List:\n");
rtems_rtl_shell_command (2, list);
printf ("RTL Sym:\n");
rtems_rtl_shell_command (2, sym);
#endif
}
static void dl_check_resolved(void* handle, bool has_unresolved)
{
int unresolved = 0;
rtems_test_assert (dlinfo (handle, RTLD_DI_UNRESOLVED, &unresolved) == 0);
if (has_unresolved)
{
if (unresolved == 0)
{
dl_load_dump();
rtems_test_assert (unresolved != 0);
}
}
else
{
if (unresolved != 0)
{
dl_load_dump();
rtems_test_assert (unresolved == 0);
}
}
}
static void* dl_load_obj(const char* name, bool has_unresolved)
{
void* handle;
printf("load: %s\n", name);
handle = dlopen (name, RTLD_NOW | RTLD_GLOBAL);
if (!handle)
{
printf("dlopen failed: %s\n", dlerror());
return NULL;
}
dl_check_resolved (handle, has_unresolved);
printf ("handle: %p loaded\n", handle);
return handle;
}
static void dl_close (void* handle, const char* msg)
{
int r;
printf ("%s: handle: %p closing\n", msg, handle);
r = dlclose (handle);
if (r != 0)
printf("dlclose failed: %s\n", dlerror());
rtems_test_assert (r == 0);
}
static int dl_call (void* handle, const char* func)
{
call_sig call = dlsym (handle, func);
if (call == NULL)
{
printf("dlsym failed: symbol not found: %s\n", func);
return 1;
}
call ();
return 0;
}
int dl_load_test(void)
{
void* o1;
void* o2;
void* o3;
void* o4;
void* o5;
printf ("Test source (link in strstr): %s\n", dl_localise_file (__FILE__));
#if DL_DEBUG_TRACE
rtems_rtl_trace_set_mask (DL_DEBUG_TRACE);
#endif
o1 = dl_load_obj("/dl07-o1.o", false);
if (!o1)
return 1;
o2 = dl_load_obj("/dl07-o2.o", false);
if (!o1)
return 1;
o3 = dl_load_obj("/dl07-o3.o", true);
if (!o1)
return 1;
o4 = dl_load_obj("/dl07-o4.o", false);
if (!o1)
return 1;
o5 = dl_load_obj("/dl07-o5.o", false);
if (!o1)
return 1;
dl_check_resolved (o3, false);
dl_load_dump ();
printf ("\n\nRun mains in each module:\n\n");
if (dl_call (o1, "rtems_main_o1"))
return 1;
if (dl_call (o2, "rtems_main_o2"))
return 1;
if (dl_call (o3, "rtems_main_o3"))
return 1;
if (dl_call (o4, "rtems_main_o4"))
return 1;
if (dl_call (o5, "rtems_main_o5"))
return 1;
/*
* Try and close the dependent modules, we should get an error.
*/
printf ("unload test: o1\n");
rtems_test_assert (dlclose (o1) != 0);
printf ("unload test: o2\n");
rtems_test_assert (dlclose (o2) != 0);
printf ("unload test: o4\n");
rtems_test_assert (dlclose (o4) != 0);
printf ("unload test: o5\n");
rtems_test_assert (dlclose (o5) != 0);
dl_close (o3, "o3");
rtems_test_assert (dlclose (o1) != 0);
dl_close (o4, "o4");
rtems_test_assert (dlclose (o1) != 0);
dl_close (o5, "o5");
rtems_test_assert (dlclose (o1) != 0);
dl_close (o2, "o2");
dl_close (o1, "o1");
return 0;
}
|
