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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
// Copyright 2014 Renato Tegon Forti, Antony Polukhin.
// Copyright 2015-2019 Antony Polukhin.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
// For more information, see http://www.boost.org
#include "../example/b2_workarounds.hpp"
#include <boost/dll.hpp>
#include <boost/dll/runtime_symbol_info.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/predef/os.h>
#include <cmath>
#include <exception> // std::set_terminate
#include <signal.h> // ::signal
// Makes global error variables dirty. Useful for preventing issues like https://github.com/boostorg/dll/issues/16
void make_error_code_dirty() {
using namespace std;
(void)log(-1.0);
#if BOOST_OS_WINDOWS
boost::winapi::WCHAR_ path_hldr[10];
int some_invalid_value_for_handle = 0xFF004242;
boost::winapi::HMODULE_ some_invalid_handle;
memcpy(&some_invalid_handle, &some_invalid_value_for_handle, sizeof(some_invalid_value_for_handle));
boost::winapi::GetModuleFileNameW(some_invalid_handle, path_hldr, 10);
#endif
}
// lib functions
typedef float (lib_version_func)();
typedef void (say_hello_func) ();
typedef int (increment) (int);
// exe function
extern "C" int BOOST_SYMBOL_EXPORT exef() {
return 15;
}
extern "C" void BOOST_SYMBOL_EXPORT my_terminate_handler() {
std::abort();
}
extern "C" void BOOST_SYMBOL_EXPORT my_signal_handler(int) {
std::abort();
}
void internal_function() {}
int internal_variable = 1;
// Unit Tests
int main(int argc, char* argv[]) {
using namespace boost::dll;
boost::dll::fs::path shared_library_path = b2_workarounds::first_lib_from_argv(argc, argv);
BOOST_TEST(shared_library_path.string().find("test_library") != std::string::npos);
make_error_code_dirty();
shared_library lib(shared_library_path);
std::cout << std::endl;
std::cout << "shared_library: " << shared_library_path << std::endl;
std::cout << "symbol_location: " << symbol_location(lib.get<int>("integer_g")) << std::endl;
std::cout << "lib.location(): " << lib.location() << std::endl;
BOOST_TEST(
symbol_location(lib.get<int>("integer_g")) == lib.location()
);
make_error_code_dirty();
BOOST_TEST(
symbol_location(lib.get<say_hello_func>("say_hello")) == lib.location()
);
BOOST_TEST(
symbol_location(lib.get<lib_version_func>("lib_version")) == lib.location()
);
make_error_code_dirty();
BOOST_TEST(
symbol_location(lib.get<const int>("const_integer_g")) == lib.location()
);
// Checking that symbols are still available, after another load+unload of the library
{ shared_library sl2(shared_library_path); }
BOOST_TEST(
symbol_location(lib.get<int>("integer_g")) == lib.location()
);
make_error_code_dirty();
// Checking aliases
BOOST_TEST(
symbol_location(lib.get<std::size_t(*)(const std::vector<int>&)>("foo_bar")) == lib.location()
);
BOOST_TEST(
symbol_location(lib.get_alias<std::size_t(const std::vector<int>&)>("foo_bar")) == lib.location()
);
BOOST_TEST(
symbol_location(lib.get<std::size_t*>("foo_variable")) == lib.location()
);
BOOST_TEST(
symbol_location(lib.get_alias<std::size_t>("foo_variable")) == lib.location()
);
{ // self
make_error_code_dirty();
shared_library sl(program_location());
make_error_code_dirty();
BOOST_TEST(
(boost::dll::fs::equivalent(symbol_location(sl.get<int(void)>("exef")), argv[0]))
);
}
{ // self with error_code
boost::dll::fs::error_code ec;
shared_library sl(program_location(ec));
BOOST_TEST(!ec);
BOOST_TEST(
(boost::dll::fs::equivalent(symbol_location(sl.get<int(void)>("exef"), ec), argv[0]))
);
BOOST_TEST(!ec);
symbol_location(&sl.get<int(void)>("exef"), ec);
BOOST_TEST(ec);
}
std::cout << "\ninternal_function: " << symbol_location(internal_function);
std::cout << "\nargv[0] : " << boost::filesystem::absolute(argv[0]);
BOOST_TEST(
(boost::dll::fs::equivalent(symbol_location(internal_function), argv[0]))
);
BOOST_TEST(
(boost::dll::fs::equivalent(symbol_location(internal_variable), argv[0]))
);
make_error_code_dirty();
BOOST_TEST(
(boost::dll::fs::equivalent(this_line_location(), argv[0]))
);
{ // this_line_location with error_code
boost::dll::fs::error_code ec;
make_error_code_dirty();
BOOST_TEST(
(boost::dll::fs::equivalent(this_line_location(ec), argv[0]))
);
BOOST_TEST(!ec);
}
BOOST_TEST(
lib.get_alias<boost::dll::fs::path()>("module_location_from_itself")() == lib.location()
);
// Checking docs content
std::cout << "\nsymbol_location(std::cerr); // " << symbol_location(std::cerr);
std::cout << "\nsymbol_location(std::puts); // " << symbol_location(std::puts);
std::set_terminate(&my_terminate_handler);
BOOST_TEST((boost::dll::fs::equivalent(
symbol_location_ptr(std::set_terminate(0)),
argv[0]
)));
{
boost::dll::fs::error_code ec;
boost::dll::fs::path p = symbol_location_ptr(std::set_terminate(0), ec);
BOOST_TEST(ec || !p.empty());
}
{
boost::dll::fs::error_code ec;
symbol_location(std::set_terminate(0), ec),
BOOST_TEST(ec);
}
{
std::set_terminate(&my_terminate_handler);
boost::dll::fs::error_code ec;
make_error_code_dirty();
symbol_location(std::set_terminate(0), ec),
BOOST_TEST(ec);
}
{
boost::dll::fs::error_code ec;
::signal(SIGSEGV, &my_signal_handler);
boost::dll::fs::path p = symbol_location_ptr(::signal(SIGSEGV, SIG_DFL), ec);
BOOST_TEST((boost::dll::fs::equivalent(
p,
argv[0]
)) || ec);
}
{
::signal(SIGSEGV, &my_signal_handler);
boost::dll::fs::error_code ec;
make_error_code_dirty();
symbol_location(::signal(SIGSEGV, SIG_DFL), ec);
BOOST_TEST(ec);
}
return boost::report_errors();
}
|
