tests/regression/abi0-conflict/app_ust_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 #include <arpa/inet.h>
  14
  15 #define LTTNG_UST_TRACEPOINT_DEFINE
  16 #include "ust_tests_hello.h"
  17
  18 #define LTTNG_UST_LIB_ABI0_SO_NAME "libfakeust0.so"
  19 #define LTTNG_UST_LIB_ABI1_SO_NAME "liblttng-ust.so.1"
  20
  21 struct lib_desc {
  22         const char *soname;
  23         void *handle;
  24 };
  25
  26 static struct lib_desc lib_desc[] = {
  27         [0] = {
  28                 .soname = LTTNG_UST_LIB_ABI0_SO_NAME,
  29         },
  30         [1] = {
  31                 .soname = LTTNG_UST_LIB_ABI1_SO_NAME,
  32         },
  33         [2] = {
  34                 .soname = LTTNG_UST_LIB_ABI1_SO_NAME,
  35         },
  36 };
  37
  38 static
  39 int dlopen_ust(struct lib_desc *desc)
  40 {
  41         int ret = EXIT_SUCCESS;
  42
  43         desc->handle = dlopen(desc->soname, RTLD_NOW | RTLD_GLOBAL);
  44         if (!desc->handle) {
  45                 printf("Error: dlopen of liblttng-ust shared library (%s).\n", desc->soname);
  46                 ret = EXIT_FAILURE;
  47         } else {
  48                 printf("Success: dlopen of liblttng-ust shared library (%s).\n", desc->soname);
  49         }
  50
  51         return ret;
  52 }
  53
  54 static
  55 int dlopen_abi0(void)
  56 {
  57         return dlopen_ust(&lib_desc[0]);
  58 }
  59
  60 static
  61 int dlopen_abi1(void)
  62 {
  63         return dlopen_ust(&lib_desc[1]);
  64 }
  65
  66 static
  67 int dlopen_abi0_abi1(void)
  68 {
  69         int ret = EXIT_SUCCESS;
  70
  71         ret = dlopen_ust(&lib_desc[0]);
  72         if (ret != EXIT_SUCCESS)
  73                 return ret;
  74
  75         ret = dlopen_ust(&lib_desc[1]);
  76
  77         return ret;
  78 }
  79
  80 static
  81 int dlopen_abi1_abi0(void)
  82 {
  83         int ret = EXIT_SUCCESS;
  84
  85         ret = dlopen_ust(&lib_desc[1]);
  86         if (ret != EXIT_SUCCESS)
  87                 return ret;
  88
  89         ret = dlopen_ust(&lib_desc[0]);
  90
  91         return ret;
  92 }
  93
  94 static
  95 int dlopen_abi1_abi1(void)
  96 {
  97         int ret = EXIT_SUCCESS;
  98
  99         ret = dlopen_ust(&lib_desc[1]);
 100         if (ret != EXIT_SUCCESS)
 101                 return ret;
 102
 103         ret = dlopen_ust(&lib_desc[2]);
 104
 105         return ret;
 106 }
 107
 108 static
 109 void usage(char **argv)
 110 {
 111         printf("Usage: %s <test_type>\n", argv[0]);
 112         printf("  test_type: abi0, abi1, abi0_abi1, abi1_abi0, abi1_abi1\n");
 113 }
 114
 115 int main(int argc, char **argv)
 116 {
 117         int ret = EXIT_SUCCESS;
 118         const char *test_type;
 119         int i, netint;
 120         long values[] = { 1, 2, 3 };
 121         char text[10] = "test";
 122         double dbl = 2.0;
 123         float flt = 2222.0;
 124         bool mybool = 123;      /* should print "1" */
 125
 126         if (argc != 2) {
 127                 usage(argv);
 128                 return EXIT_FAILURE;
 129         } else {
 130                 test_type = argv[1];
 131         }
 132
 133         printf("This application is linked on liblttng-ust.\n");
 134
 135         if (strcmp(test_type, "abi0") == 0)
 136                 ret = dlopen_abi0();
 137         else if (strcmp(test_type, "abi1") == 0)
 138                 ret = dlopen_abi1();
 139         else if (strcmp(test_type, "abi0_abi1") == 0)
 140                 ret = dlopen_abi0_abi1();
 141         else if (strcmp(test_type, "abi1_abi0") == 0)
 142                 ret = dlopen_abi1_abi0();
 143         else if (strcmp(test_type, "abi1_abi1") == 0)
 144                 ret = dlopen_abi1_abi1();
 145         else {
 146                 usage(argv);
 147                 ret = EXIT_FAILURE;
 148         }
 149
 150         for (i = 0; i < 10; i++) {
 151                 netint = htonl(i);
 152                 lttng_ust_tracepoint(ust_tests_hello, tptest, i, netint, values,
 153                            text, strlen(text), dbl, flt, mybool);
 154         }
 155
 156         return ret;
 157 }