projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 9d16b343 MJ |
1 | /* |
| 2 | * Copyright (C) 2016 Antoine Busque <abusque@efficios.com> | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0-only | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| d8ed06af | 8 | /* _GNU_SOURCE is defined by config.h */ |
| 28f23191 JG |
9 | #include <common/compat/errno.hpp> |
| 10 | ||
| c70c42cc | 11 | #include <dlfcn.h> |
| d8ed06af | 12 | #include <stdio.h> |
| d8ed06af | 13 | #include <stdlib.h> |
| 28f23191 | 14 | #include <unistd.h> |
| edf4b93e | 15 | |
| d8ed06af MD |
16 | /* |
| 17 | * libfoo has a direct dependency on libbar. | |
| 18 | * libbar has a direct dependency on libzzz. | |
| 19 | * This test is therefore a mix of dlopen/dlclose and dlmopen/dlclose of | |
| 20 | * libfoo, and of its direct dependencies. | |
| 21 | */ | |
| f46376a1 | 22 | int main(void) |
| c70c42cc | 23 | { |
| bc1d8ca0 PP |
24 | void *h0, *h2, *h3, *h4; |
| 25 | ||
| 26 | #ifdef HAVE_DLMOPEN | |
| 27 | void *h1; | |
| 28 | #endif | |
| 29 | ||
| d8ed06af MD |
30 | char *error; |
| 31 | int (*foo)(void); | |
| c70c42cc | 32 | |
| d8ed06af MD |
33 | h0 = dlopen("libbar.so", RTLD_LAZY); |
| 34 | if (!h0) { | |
| 35 | goto get_error; | |
| 36 | } | |
| bc1d8ca0 PP |
37 | |
| 38 | #ifdef HAVE_DLMOPEN | |
| d8ed06af MD |
39 | h1 = dlmopen(LM_ID_BASE, "libfoo.so", RTLD_LAZY); |
| 40 | if (!h1) { | |
| 41 | goto get_error; | |
| 42 | } | |
| bc1d8ca0 PP |
43 | #endif |
| 44 | ||
| d8ed06af MD |
45 | h2 = dlopen("libzzz.so", RTLD_LAZY); |
| 46 | if (!h2) { | |
| 47 | goto get_error; | |
| 48 | } | |
| 49 | h3 = dlopen("libfoo.so", RTLD_LAZY); | |
| 50 | if (!h3) { | |
| 51 | goto get_error; | |
| 52 | } | |
| 53 | h4 = dlopen("libfoo.so", RTLD_LAZY); | |
| 54 | if (!h4) { | |
| 55 | goto get_error; | |
| 56 | } | |
| c70c42cc | 57 | |
| bc1d8ca0 | 58 | foo = dlsym(h3, "foo"); |
| d8ed06af MD |
59 | error = dlerror(); |
| 60 | if (error != NULL) { | |
| 61 | goto error; | |
| 62 | } | |
| c70c42cc | 63 | |
| d8ed06af | 64 | foo(); |
| c70c42cc | 65 | |
| d8ed06af MD |
66 | if (dlclose(h0)) { |
| 67 | goto get_error; | |
| 68 | } | |
| bc1d8ca0 PP |
69 | |
| 70 | #ifdef HAVE_DLMOPEN | |
| d8ed06af MD |
71 | if (dlclose(h1)) { |
| 72 | goto get_error; | |
| 73 | } | |
| bc1d8ca0 PP |
74 | #endif |
| 75 | ||
| d8ed06af MD |
76 | if (dlclose(h2)) { |
| 77 | goto get_error; | |
| 78 | } | |
| 79 | if (dlclose(h3)) { | |
| 80 | goto get_error; | |
| 81 | } | |
| 82 | if (dlclose(h4)) { | |
| 83 | goto get_error; | |
| 84 | } | |
| 85 | ||
| 86 | exit(EXIT_SUCCESS); | |
| 87 | ||
| 88 | get_error: | |
| 89 | error = dlerror(); | |
| 90 | error: | |
| 91 | fprintf(stderr, "%s\n", error); | |
| 92 | exit(EXIT_FAILURE); | |
| c70c42cc | 93 | } |