granicus.if.org Git - strace/blob - tests/s390_runtime_instr.c

   1 /*
   2  * Check decoding of s390_runtime_instr syscall.
   3  *
   4  * Copyright (c) 2018 The strace developers.
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #include "tests.h"
  11 #include <asm/unistd.h>
  12
  13 #if defined __NR_s390_runtime_instr
  14
  15 # include <errno.h>
  16 # include <signal.h>
  17 # include <stdio.h>
  18 # include <unistd.h>
  19
  20 int
  21 main(void)
  22 {
  23         static struct {
  24                 kernel_ulong_t cmd;
  25                 const char * cmd_str;
  26         } cmd_args[] = {
  27                 { 0, "0 /* S390_RUNTIME_INSTR_??? */" },
  28                 { 4, "4 /* S390_RUNTIME_INSTR_??? */" },
  29                 { (kernel_ulong_t) 0xdeafbeefdeadc0deULL,
  30                         "-559038242 /* S390_RUNTIME_INSTR_??? */" },
  31                 { 2, "S390_RUNTIME_INSTR_STOP"  },
  32         };
  33
  34         static struct {
  35                 kernel_ulong_t sig;
  36                 const char * sig_str;
  37         } start_sig_args[] = {
  38                 { 0, "0" },
  39                 { (kernel_ulong_t) 0xfacefeedac0ffeedULL, NULL },
  40                 { ARG_STR(SIGALRM) },
  41                 { 33, "SIGRT_1" },
  42                 { 63, "SIGRT_31" },
  43         };
  44
  45         unsigned int i;
  46         long rc;
  47
  48         for (i = 0; i < ARRAY_SIZE(cmd_args); i++) {
  49                 rc = syscall(__NR_s390_runtime_instr, cmd_args[i].cmd, 0xdead);
  50                 printf("s390_runtime_instr(%s) = %s\n",
  51                        cmd_args[i].cmd_str, sprintrc(rc));
  52         }
  53
  54         for (i = 0; i < ARRAY_SIZE(start_sig_args); i++) {
  55                 long saved_errno;
  56
  57                 rc = syscall(__NR_s390_runtime_instr, 1, start_sig_args[i].sig);
  58                 saved_errno = errno;
  59                 printf("s390_runtime_instr(S390_RUNTIME_INSTR_START, ");
  60
  61                 if (start_sig_args[i].sig_str)
  62                         printf("%s", start_sig_args[i].sig_str);
  63                 else
  64                         printf("%d", (int) start_sig_args[i].sig);
  65
  66                 errno = saved_errno;
  67                 printf(") = %s\n", sprintrc(rc));
  68         }
  69
  70         puts("+++ exited with 0 +++");
  71         return 0;
  72 }
  73
  74 #else
  75
  76 SKIP_MAIN_UNDEFINED("__NR_s390_runtime_instr")
  77
  78 #endif