63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2018 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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#if defined __NR_get_robust_list && defined __NR_set_robust_list
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# include <stdio.h>
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# include <unistd.h>
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static const char *
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sprintaddr(void *addr)
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{
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static char buf[sizeof(addr) * 2 + sizeof("0x")];
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if (!addr)
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return "NULL";
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else
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snprintf(buf, sizeof(buf), "%p", addr);
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return buf;
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}
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int
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main(void)
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{
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const pid_t pid = getpid();
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const long long_pid = (unsigned long) (0xdeadbeef00000000LL | pid);
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TAIL_ALLOC_OBJECT_CONST_PTR(void *, p_head);
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TAIL_ALLOC_OBJECT_CONST_PTR(size_t, p_len);
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if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
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perror_msg_and_skip("get_robust_list");
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printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
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(int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
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void *head = tail_alloc(*p_len);
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if (syscall(__NR_set_robust_list, head, *p_len))
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perror_msg_and_skip("set_robust_list");
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printf("set_robust_list(%p, %lu) = 0\n",
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head, (unsigned long) *p_len);
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if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
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perror_msg_and_skip("get_robust_list");
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printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
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(int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
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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_get_robust_list && __NR_set_robust_list")
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#endif
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