Dmitry V. Levin
c6782f144a
strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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* Copyright (c) 2015-2017 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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#include "scno.h"
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#ifdef __NR_membarrier
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# include <assert.h>
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# include <errno.h>
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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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assert(syscall(__NR_membarrier, 3, 255) == -1);
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int saved_errno = errno;
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printf("membarrier(0x3 /* MEMBARRIER_CMD_??? */, 255) = %s\n",
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sprintrc(-1));
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if (saved_errno != ENOSYS) {
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const char *text_global;
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const char *text;
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int rc = syscall(__NR_membarrier, 0, 0);
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assert(rc >= 0);
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text_global = rc & 1 ? "MEMBARRIER_CMD_GLOBAL" : "";
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switch (rc & ~1) {
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case 0:
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text = "";
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break;
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case 8:
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text = "MEMBARRIER_CMD_PRIVATE_EXPEDITED";
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break;
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case 8|16:
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text = "MEMBARRIER_CMD_PRIVATE_EXPEDITED|"
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"MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED";
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break;
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case 2|4|8|16:
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text = "MEMBARRIER_CMD_GLOBAL_EXPEDITED|"
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"MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED|"
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"MEMBARRIER_CMD_PRIVATE_EXPEDITED|"
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"MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED";
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break;
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case 2|4|8|16|32|64:
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text = "MEMBARRIER_CMD_GLOBAL_EXPEDITED|"
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"MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED|"
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"MEMBARRIER_CMD_PRIVATE_EXPEDITED|"
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"MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED|"
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"MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE|"
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"MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE";
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break;
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default:
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error_msg_and_fail("membarrier returned %#x, does"
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" the test have to be updated?", rc);
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}
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printf("membarrier(MEMBARRIER_CMD_QUERY, 0) = %#x (%s%s%s)\n",
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rc, text_global, text[0] && text_global[0] ? "|" : "",
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text);
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}
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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_membarrier")
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#endif
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