/* * Copyright (c) 2015-2017 Dmitry V. Levin * Copyright (c) 2015-2018 The strace developers. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "tests.h" #include #include "scno.h" #ifdef __NR_membarrier # include # include # include # include int main(void) { assert(syscall(__NR_membarrier, 3, 255) == -1); int saved_errno = errno; printf("membarrier(0x3 /* MEMBARRIER_CMD_??? */, 255) = %s\n", sprintrc(-1)); if (saved_errno != ENOSYS) { const char *text_global; const char *text; int rc = syscall(__NR_membarrier, 0, 0); assert(rc >= 0); text_global = rc & 1 ? "MEMBARRIER_CMD_GLOBAL" : ""; switch (rc & ~1) { case 0: text = ""; break; case 8: text = "MEMBARRIER_CMD_PRIVATE_EXPEDITED"; break; case 8|16: text = "MEMBARRIER_CMD_PRIVATE_EXPEDITED|" "MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED"; break; case 2|4|8|16: text = "MEMBARRIER_CMD_GLOBAL_EXPEDITED|" "MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED|" "MEMBARRIER_CMD_PRIVATE_EXPEDITED|" "MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED"; break; case 2|4|8|16|32|64: text = "MEMBARRIER_CMD_GLOBAL_EXPEDITED|" "MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED|" "MEMBARRIER_CMD_PRIVATE_EXPEDITED|" "MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED|" "MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE|" "MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE"; break; default: error_msg_and_fail("membarrier returned %#x, does" " the test have to be updated?", rc); } printf("membarrier(MEMBARRIER_CMD_QUERY, 0) = %#x (%s%s%s)\n", rc, text_global, text[0] && text_global[0] ? "|" : "", text); } puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_membarrier") #endif