app/test/test_debug.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdint.h>
   7 #include <sys/resource.h>
   8 #include <sys/time.h>
   9 #include <sys/wait.h>
  10 #include <unistd.h>
  11
  12 #include <rte_debug.h>
  13 #include <rte_common.h>
  14 #include <rte_eal.h>
  15 #include <rte_service_component.h>
  16
  17 #include "test.h"
  18
  19 /*
  20  * Debug test
  21  * ==========
  22  */
  23
  24 /* use fork() to test rte_panic() */
  25 static int
  26 test_panic(void)
  27 {
  28         int pid;
  29         int status;
  30
  31         pid = fork();
  32
  33         if (pid == 0) {
  34                 struct rlimit rl;
  35
  36                 /* No need to generate a coredump when panicking. */
  37                 rl.rlim_cur = rl.rlim_max = 0;
  38                 setrlimit(RLIMIT_CORE, &rl);
  39                 rte_panic("Test Debug\n");
  40         } else if (pid < 0) {
  41                 printf("Fork Failed\n");
  42                 return -1;
  43         }
  44         wait(&status);
  45         if(status == 0){
  46                 printf("Child process terminated normally!\n");
  47                 return -1;
  48         } else
  49                 printf("Child process terminated as expected - Test passed!\n");
  50
  51         return 0;
  52 }
  53
  54 /* use fork() to test rte_exit() */
  55 static int
  56 test_exit_val(int exit_val)
  57 {
  58         int pid;
  59         int status;
  60
  61         /* manually cleanup EAL memory, as the fork() below would otherwise
  62          * cause the same hugepages to be free()-ed multiple times.
  63          */
  64         rte_service_finalize();
  65
  66         pid = fork();
  67
  68         if (pid == 0)
  69                 rte_exit(exit_val, __func__);
  70         else if (pid < 0){
  71                 printf("Fork Failed\n");
  72                 return -1;
  73         }
  74         wait(&status);
  75         printf("Child process status: %d\n", status);
  76         if(!WIFEXITED(status) || WEXITSTATUS(status) != (uint8_t)exit_val){
  77                 printf("Child process terminated with incorrect status (expected = %d)!\n",
  78                                 exit_val);
  79                 return -1;
  80         }
  81         return 0;
  82 }
  83
  84 static int
  85 test_exit(void)
  86 {
  87         int test_vals[] = { 0, 1, 2, 255, -1 };
  88         unsigned i;
  89         for (i = 0; i < RTE_DIM(test_vals); i++) {
  90                 if (test_exit_val(test_vals[i]) < 0)
  91                         return -1;
  92         }
  93         printf("%s Passed\n", __func__);
  94         return 0;
  95 }
  96
  97 static void
  98 dummy_app_usage(const char *progname)
  99 {
 100         RTE_SET_USED(progname);
 101 }
 102
 103 static int
 104 test_usage(void)
 105 {
 106         if (rte_set_application_usage_hook(dummy_app_usage) != NULL) {
 107                 printf("Non-NULL value returned for initial usage hook\n");
 108                 return -1;
 109         }
 110         if (rte_set_application_usage_hook(NULL) != dummy_app_usage) {
 111                 printf("Incorrect value returned for application usage hook\n");
 112                 return -1;
 113         }
 114         return 0;
 115 }
 116
 117 static int
 118 test_debug(void)
 119 {
 120         rte_dump_stack();
 121         if (test_panic() < 0)
 122                 return -1;
 123         if (test_exit() < 0)
 124                 return -1;
 125         if (test_usage() < 0)
 126                 return -1;
 127         return 0;
 128 }
 129
 130 REGISTER_TEST_COMMAND(debug_autotest, test_debug);