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 static
  18 int dlopen_ust(const char *lib_soname)
  19 {
  20         int ret = EXIT_SUCCESS;
  21         void *handle;
  22
  23         handle = dlopen(lib_soname, RTLD_NOW | RTLD_GLOBAL);
  24         if (!handle) {
  25                 printf("Error: dlopen of liblttng-ust shared library (%s).\n", lib_soname);
  26                 ret = EXIT_FAILURE;
  27         } else {
  28                 printf("Success: dlopen of liblttng-ust shared library (%s).\n", lib_soname);
  29         }
  30
  31         return ret;
  32 }
  33
  34 static
  35 int dlopen_abi0(void)
  36 {
  37         return dlopen_ust(LTTNG_UST_LIB_ABI0_SO_NAME);
  38 }
  39
  40 static
  41 int dlopen_abi1(void)
  42 {
  43         return dlopen_ust(LTTNG_UST_LIB_ABI1_SO_NAME);
  44 }
  45
  46 static
  47 int dlopen_abi0_abi1(void)
  48 {
  49         int ret = EXIT_SUCCESS;
  50
  51         ret = dlopen_ust(LTTNG_UST_LIB_ABI0_SO_NAME);
  52         if (ret != EXIT_SUCCESS)
  53                 return ret;
  54
  55         ret = dlopen_ust(LTTNG_UST_LIB_ABI1_SO_NAME);
  56
  57         return ret;
  58 }
  59
  60 static
  61 int dlopen_abi1_abi0(void)
  62 {
  63         int ret = EXIT_SUCCESS;
  64
  65         ret = dlopen_ust(LTTNG_UST_LIB_ABI1_SO_NAME);
  66         if (ret != EXIT_SUCCESS)
  67                 return ret;
  68
  69         ret = dlopen_ust(LTTNG_UST_LIB_ABI0_SO_NAME);
  70
  71         return ret;
  72 }
  73
  74 static
  75 int dlopen_abi1_abi1(void)
  76 {
  77         int ret = EXIT_SUCCESS;
  78
  79         ret = dlopen_ust(LTTNG_UST_LIB_ABI1_SO_NAME);
  80         if (ret != EXIT_SUCCESS)
  81                 return ret;
  82
  83         ret = dlopen_ust(LTTNG_UST_LIB_ABI1_SO_NAME);
  84
  85         return ret;
  86 }
  87
  88 static
  89 void usage(char **argv)
  90 {
  91         printf("Usage: %s <test_type>\n", argv[0]);
  92         printf("  test_type: abi0, abi1, abi0_abi1, abi1_abi0, abi1_abi1\n");
  93 }
  94
  95 int main(int argc, char **argv)
  96 {
  97         int ret = EXIT_SUCCESS;
  98         const char *test_type;
  99
 100         if (argc != 2) {
 101                 usage(argv);
 102                 return EXIT_FAILURE;
 103         } else {
 104                 test_type = argv[1];
 105         }
 106
 107         printf("This application is NOT linked on liblttng-ust.\n");
 108
 109         if (strcmp(test_type, "abi0") == 0)
 110                 ret = dlopen_abi0();
 111         else if (strcmp(test_type, "abi1") == 0)
 112                 ret = dlopen_abi1();
 113         else if (strcmp(test_type, "abi0_abi1") == 0)
 114                 ret = dlopen_abi0_abi1();
 115         else if (strcmp(test_type, "abi1_abi0") == 0)
 116                 ret = dlopen_abi1_abi0();
 117         else if (strcmp(test_type, "abi1_abi1") == 0)
 118                 ret = dlopen_abi1_abi1();
 119         else {
 120                 usage(argv);
 121                 ret = EXIT_FAILURE;
 122         }
 123
 124         return ret;
 125 }