58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* Check decoding of getcpu syscall.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#ifdef __NR_getcpu
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# include <stdio.h>
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# include <unistd.h>
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int
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main(void)
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{
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unsigned *bogus_cpu =
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(unsigned *) tail_alloc(sizeof(*bogus_cpu)) + 1;
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unsigned *bogus_node =
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(unsigned *) tail_alloc(sizeof(*bogus_node)) + 1;
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unsigned *bogus_tcache =
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(unsigned *) tail_alloc(sizeof(*bogus_tcache)) + 1;
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long res;
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TAIL_ALLOC_OBJECT_CONST_PTR(unsigned, cpu);
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TAIL_ALLOC_OBJECT_CONST_PTR(unsigned, node);
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long *tcache = tail_alloc(128);
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res = syscall(__NR_getcpu, NULL, NULL, NULL);
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printf("getcpu(NULL, NULL, NULL) = %s\n", sprintrc(res));
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res = syscall(__NR_getcpu, bogus_cpu, bogus_node, bogus_tcache);
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printf("getcpu(%p, %p, %p) = %s\n",
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bogus_cpu, bogus_node, bogus_tcache, sprintrc(res));
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res = syscall(__NR_getcpu, cpu, node, tcache);
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if (res != 0)
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perror_msg_and_skip("getcpu");
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printf("getcpu([%u], [%u], %p) = 0\n", *cpu, *node, tcache);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_getcpu");
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#endif
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