projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| d8ed06af | 1 | /* _GNU_SOURCE is defined by config.h */ |
| c70c42cc | 2 | #include <dlfcn.h> |
| d8ed06af MD |
3 | #include <stdio.h> |
| 4 | #include <errno.h> | |
| 5 | #include <unistd.h> | |
| 6 | #include <stdlib.h> | |
| c70c42cc | 7 | |
| d8ed06af MD |
8 | /* |
| 9 | * libfoo has a direct dependency on libbar. | |
| 10 | * libbar has a direct dependency on libzzz. | |
| 11 | * This test is therefore a mix of dlopen/dlclose and dlmopen/dlclose of | |
| 12 | * libfoo, and of its direct dependencies. | |
| 13 | */ | |
| 14 | int main(int argc, char **argv) | |
| c70c42cc | 15 | { |
| d8ed06af MD |
16 | void *h0, *h1, *h2, *h3, *h4; |
| 17 | char *error; | |
| 18 | int (*foo)(void); | |
| c70c42cc | 19 | |
| d8ed06af MD |
20 | h0 = dlopen("libbar.so", RTLD_LAZY); |
| 21 | if (!h0) { | |
| 22 | goto get_error; | |
| 23 | } | |
| 24 | h1 = dlmopen(LM_ID_BASE, "libfoo.so", RTLD_LAZY); | |
| 25 | if (!h1) { | |
| 26 | goto get_error; | |
| 27 | } | |
| 28 | h2 = dlopen("libzzz.so", RTLD_LAZY); | |
| 29 | if (!h2) { | |
| 30 | goto get_error; | |
| 31 | } | |
| 32 | h3 = dlopen("libfoo.so", RTLD_LAZY); | |
| 33 | if (!h3) { | |
| 34 | goto get_error; | |
| 35 | } | |
| 36 | h4 = dlopen("libfoo.so", RTLD_LAZY); | |
| 37 | if (!h4) { | |
| 38 | goto get_error; | |
| 39 | } | |
| c70c42cc | 40 | |
| d8ed06af MD |
41 | foo = dlsym(h1, "foo"); |
| 42 | error = dlerror(); | |
| 43 | if (error != NULL) { | |
| 44 | goto error; | |
| 45 | } | |
| c70c42cc | 46 | |
| d8ed06af | 47 | foo(); |
| c70c42cc | 48 | |
| d8ed06af MD |
49 | if (dlclose(h0)) { |
| 50 | goto get_error; | |
| 51 | } | |
| 52 | if (dlclose(h1)) { | |
| 53 | goto get_error; | |
| 54 | } | |
| 55 | if (dlclose(h2)) { | |
| 56 | goto get_error; | |
| 57 | } | |
| 58 | if (dlclose(h3)) { | |
| 59 | goto get_error; | |
| 60 | } | |
| 61 | if (dlclose(h4)) { | |
| 62 | goto get_error; | |
| 63 | } | |
| 64 | ||
| 65 | exit(EXIT_SUCCESS); | |
| 66 | ||
| 67 | get_error: | |
| 68 | error = dlerror(); | |
| 69 | error: | |
| 70 | fprintf(stderr, "%s\n", error); | |
| 71 | exit(EXIT_FAILURE); | |
| c70c42cc | 72 | } |