tests/regression/abi0-conflict/app_noust_dlopen.c

   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 }