| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2021 Michael Jeanson <mjeanson@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <dlfcn.h> |
| 8 | #include <stdbool.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <stdio.h> |
| 11 | #include <unistd.h> |
| 12 | #include <string.h> |
| 13 | |
| 14 | #define LTTNG_UST_LIB_ABI0_SO_NAME "libfakeust0.so" |
| 15 | #define LTTNG_UST_LIB_ABI1_SO_NAME "liblttng-ust.so.1" |
| 16 | |
| 17 | struct lib_desc { |
| 18 | const char *soname; |
| 19 | void *handle; |
| 20 | }; |
| 21 | |
| 22 | static struct lib_desc lib_desc[] = { |
| 23 | [0] = { |
| 24 | .soname = LTTNG_UST_LIB_ABI0_SO_NAME, |
| 25 | }, |
| 26 | [1] = { |
| 27 | .soname = LTTNG_UST_LIB_ABI1_SO_NAME, |
| 28 | }, |
| 29 | [2] = { |
| 30 | .soname = LTTNG_UST_LIB_ABI1_SO_NAME, |
| 31 | }, |
| 32 | }; |
| 33 | |
| 34 | static |
| 35 | int dlopen_ust(struct lib_desc *desc) |
| 36 | { |
| 37 | int ret = EXIT_SUCCESS; |
| 38 | |
| 39 | desc->handle = dlopen(desc->soname, RTLD_NOW | RTLD_GLOBAL); |
| 40 | if (!desc->handle) { |
| 41 | printf("Error: dlopen of liblttng-ust shared library (%s).\n", desc->soname); |
| 42 | ret = EXIT_FAILURE; |
| 43 | } else { |
| 44 | printf("Success: dlopen of liblttng-ust shared library (%s).\n", desc->soname); |
| 45 | } |
| 46 | |
| 47 | return ret; |
| 48 | } |
| 49 | |
| 50 | static |
| 51 | int dlopen_abi0(void) |
| 52 | { |
| 53 | return dlopen_ust(&lib_desc[0]); |
| 54 | } |
| 55 | |
| 56 | static |
| 57 | int dlopen_abi1(void) |
| 58 | { |
| 59 | return dlopen_ust(&lib_desc[1]); |
| 60 | } |
| 61 | |
| 62 | static |
| 63 | int dlopen_abi0_abi1(void) |
| 64 | { |
| 65 | int ret = EXIT_SUCCESS; |
| 66 | |
| 67 | ret = dlopen_ust(&lib_desc[0]); |
| 68 | if (ret != EXIT_SUCCESS) |
| 69 | return ret; |
| 70 | |
| 71 | ret = dlopen_ust(&lib_desc[1]); |
| 72 | |
| 73 | return ret; |
| 74 | } |
| 75 | |
| 76 | static |
| 77 | int dlopen_abi1_abi0(void) |
| 78 | { |
| 79 | int ret = EXIT_SUCCESS; |
| 80 | |
| 81 | ret = dlopen_ust(&lib_desc[1]); |
| 82 | if (ret != EXIT_SUCCESS) |
| 83 | return ret; |
| 84 | |
| 85 | ret = dlopen_ust(&lib_desc[0]); |
| 86 | |
| 87 | return ret; |
| 88 | } |
| 89 | |
| 90 | static |
| 91 | int dlopen_abi1_abi1(void) |
| 92 | { |
| 93 | int ret = EXIT_SUCCESS; |
| 94 | |
| 95 | ret = dlopen_ust(&lib_desc[1]); |
| 96 | if (ret != EXIT_SUCCESS) |
| 97 | return ret; |
| 98 | |
| 99 | ret = dlopen_ust(&lib_desc[2]); |
| 100 | |
| 101 | return ret; |
| 102 | } |
| 103 | |
| 104 | static |
| 105 | void usage(char **argv) |
| 106 | { |
| 107 | printf("Usage: %s <test_type>\n", argv[0]); |
| 108 | printf(" test_type: abi0, abi1, abi0_abi1, abi1_abi0, abi1_abi1\n"); |
| 109 | } |
| 110 | |
| 111 | int main(int argc, char **argv) |
| 112 | { |
| 113 | int ret = EXIT_SUCCESS; |
| 114 | const char *test_type; |
| 115 | |
| 116 | if (argc != 2) { |
| 117 | usage(argv); |
| 118 | return EXIT_FAILURE; |
| 119 | } else { |
| 120 | test_type = argv[1]; |
| 121 | } |
| 122 | |
| 123 | printf("This application is NOT linked on liblttng-ust.\n"); |
| 124 | |
| 125 | if (strcmp(test_type, "abi0") == 0) |
| 126 | ret = dlopen_abi0(); |
| 127 | else if (strcmp(test_type, "abi1") == 0) |
| 128 | ret = dlopen_abi1(); |
| 129 | else if (strcmp(test_type, "abi0_abi1") == 0) |
| 130 | ret = dlopen_abi0_abi1(); |
| 131 | else if (strcmp(test_type, "abi1_abi0") == 0) |
| 132 | ret = dlopen_abi1_abi0(); |
| 133 | else if (strcmp(test_type, "abi1_abi1") == 0) |
| 134 | ret = dlopen_abi1_abi1(); |
| 135 | else { |
| 136 | usage(argv); |
| 137 | ret = EXIT_FAILURE; |
| 138 | } |
| 139 | |
| 140 | return ret; |
| 141 | } |