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/wait.h>
   8 #include <unistd.h>
   9
  10 #include <rte_debug.h>
  11 #include <rte_common.h>
  12 #include <rte_eal.h>
  13 #include <rte_service_component.h>
  14
  15 #include "test.h"
  16
  17 /*
  18  * Debug test
  19  * ==========
  20  */
  21
  22 /* use fork() to test rte_panic() */
  23 static int
  24 test_panic(void)
  25 {
  26         int pid;
  27         int status;
  28
  29         pid = fork();
  30
  31         if (pid == 0)
  32                 rte_panic("Test Debug\n");
  33         else if (pid < 0){
  34                 printf("Fork Failed\n");
  35                 return -1;
  36         }
  37         wait(&status);
  38         if(status == 0){
  39                 printf("Child process terminated normally!\n");
  40                 return -1;
  41         } else
  42                 printf("Child process terminated as expected - Test passed!\n");
  43
  44         return 0;
  45 }
  46
  47 /* use fork() to test rte_exit() */
  48 static int
  49 test_exit_val(int exit_val)
  50 {
  51         int pid;
  52         int status;
  53
  54         /* manually cleanup EAL memory, as the fork() below would otherwise
  55          * cause the same hugepages to be free()-ed multiple times.
  56          */
  57         rte_service_finalize();
  58
  59         pid = fork();
  60
  61         if (pid == 0)
  62                 rte_exit(exit_val, __func__);
  63         else if (pid < 0){
  64                 printf("Fork Failed\n");
  65                 return -1;
  66         }
  67         wait(&status);
  68         printf("Child process status: %d\n", status);
  69 #ifndef RTE_EAL_ALWAYS_PANIC_ON_ERROR
  70         if(!WIFEXITED(status) || WEXITSTATUS(status) != (uint8_t)exit_val){
  71                 printf("Child process terminated with incorrect status (expected = %d)!\n",
  72                                 exit_val);
  73                 return -1;
  74         }
  75 #endif
  76         return 0;
  77 }
  78
  79 static int
  80 test_exit(void)
  81 {
  82         int test_vals[] = { 0, 1, 2, 255, -1 };
  83         unsigned i;
  84         for (i = 0; i < RTE_DIM(test_vals); i++) {
  85                 if (test_exit_val(test_vals[i]) < 0)
  86                         return -1;
  87         }
  88         printf("%s Passed\n", __func__);
  89         return 0;
  90 }
  91
  92 static void
  93 dummy_app_usage(const char *progname)
  94 {
  95         RTE_SET_USED(progname);
  96 }
  97
  98 static int
  99 test_usage(void)
 100 {
 101         if (rte_set_application_usage_hook(dummy_app_usage) != NULL) {
 102                 printf("Non-NULL value returned for initial usage hook\n");
 103                 return -1;
 104         }
 105         if (rte_set_application_usage_hook(NULL) != dummy_app_usage) {
 106                 printf("Incorrect value returned for application usage hook\n");
 107                 return -1;
 108         }
 109         return 0;
 110 }
 111
 112 static int
 113 test_debug(void)
 114 {
 115         rte_dump_stack();
 116         rte_dump_registers();
 117         if (test_panic() < 0)
 118                 return -1;
 119         if (test_exit() < 0)
 120                 return -1;
 121         if (test_usage() < 0)
 122                 return -1;
 123         return 0;
 124 }
 125
 126 REGISTER_TEST_COMMAND(debug_autotest, test_debug);