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Linux/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  * Copyright 2015, Michael Ellerman, IBM Corp.
  4  *
  5  * This test simply tests that certain syscalls are implemented. It doesn't
  6  * actually exercise their logic in any way.
  7  */
  8 
  9 #define _GNU_SOURCE
 10 #include <errno.h>
 11 #include <stdio.h>
 12 #include <unistd.h>
 13 #include <sys/syscall.h>
 14 
 15 #include "utils.h"
 16 
 17 
 18 #define DO_TEST(_name, _num)    \
 19 static int test_##_name(void)                   \
 20 {                                               \
 21         int rc;                                 \
 22         printf("Testing " #_name);              \
 23         errno = 0;                              \
 24         rc = syscall(_num, -1, 0, 0, 0, 0, 0);  \
 25         printf("\treturned %d, errno %d\n", rc, errno); \
 26         return errno == ENOSYS;                 \
 27 }
 28 
 29 #include "ipc.h"
 30 #undef DO_TEST
 31 
 32 static int ipc_unmuxed(void)
 33 {
 34         int tests_done = 0;
 35 
 36 #define DO_TEST(_name, _num)            \
 37         FAIL_IF(test_##_name());        \
 38         tests_done++;
 39 
 40 #include "ipc.h"
 41 #undef DO_TEST
 42 
 43         /*
 44          * If we ran no tests then it means none of the syscall numbers were
 45          * defined, possibly because we were built against old headers. But it
 46          * means we didn't really test anything, so instead of passing mark it
 47          * as a skip to give the user a clue.
 48          */
 49         SKIP_IF(tests_done == 0);
 50 
 51         return 0;
 52 }
 53 
 54 int main(void)
 55 {
 56         return test_harness(ipc_unmuxed, "ipc_unmuxed");
 57 }
 58 

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