tests/aio.c - platform/external/strace - Git at Google

 /*
  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
  * Copyright (c) 2015-2017 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 <fcntl.h>
 #include <inttypes.h>
 #include <stdio.h>
 #include <time.h>
 #include <unistd.h>
 #include <asm/unistd.h>

 #if defined __NR_io_setup \
  && defined __NR_io_submit \
  && defined __NR_io_getevents \
  && defined __NR_io_cancel \
  && defined __NR_io_destroy
 # include <linux/aio_abi.h>

 int
 main(void)
 {
 	static const long bogus_ctx =
 		(long) 0xface1e55deadbeefLL;

 	static const char data2[] =
 		"\0\1\2\3cat test test test 0123456789abcdef";

 	const unsigned int sizeof_data0 = 4096;
 	const unsigned int sizeof_data1 = 8192;
 	void *data0 = tail_alloc(sizeof_data0);
 	void *data1 = tail_alloc(sizeof_data1);

 	const struct iocb proto_cb[] = {
 		{
 			.aio_data = (unsigned long) 0xfeedface11111111ULL,
 			.aio_reqprio = 11,
 			.aio_buf = (unsigned long) data0,
 			.aio_offset = (unsigned long) 0xdeface1facefeedULL,
 			.aio_nbytes = sizeof_data0
 		},
 		{
 			.aio_data = (unsigned long) 0xfeedface22222222ULL,
 			.aio_reqprio = 22,
 			.aio_buf = (unsigned long) data1,
 			.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
 			.aio_nbytes = sizeof_data1
 		}
 	};
 	const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));

 	const struct iovec proto_iov0[] = {
 		{
 			.iov_base = data0,
 			.iov_len = sizeof_data0 / 4
 		},
 		{
 			.iov_base = data0 + sizeof_data0 / 4,
 			.iov_len = sizeof_data0 / 4 * 3
 		},
 	};
 	const struct iovec *iov0 = tail_memdup(proto_iov0, sizeof(proto_iov0));

 	const struct iovec proto_iov1[] = {
 		{
 			.iov_base = data1,
 			.iov_len = sizeof_data1 / 4
 		},
 		{
 			.iov_base = data1 + sizeof_data1 / 4,
 			.iov_len = sizeof_data1 / 4 * 3
 		},
 	};
 	const struct iovec *iov1 = tail_memdup(proto_iov1, sizeof(proto_iov1));

 	const struct iocb proto_cbv[] = {
 		{
 			.aio_data = (unsigned long) 0xfeed11111111faceULL,
 			.aio_lio_opcode = 7,
 			.aio_reqprio = 111,
 			.aio_buf = (unsigned long) iov0,
 			.aio_offset = (unsigned long) 0xdeface1facefeedULL,
 			.aio_nbytes = ARRAY_SIZE(proto_iov0)
 		},
 		{
 			.aio_data = (unsigned long) 0xfeed22222222faceULL,
 			.aio_lio_opcode = 7,
 			.aio_reqprio = 222,
 			.aio_buf = (unsigned long) iov1,
 			.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
 			.aio_nbytes = ARRAY_SIZE(proto_iov1)
 		}
 	};
 	const struct iocb *cbv = tail_memdup(proto_cbv, sizeof(proto_cbv));

 	/* For additional decoder testing */
 	const struct iocb proto_cbv2[] = {
 		{
 			.aio_data = 0xbadfacedc0ffeeedULL,
 			.aio_key = 0xdefaced0,
 			.aio_lio_opcode = 0xf00d,
 			.aio_reqprio = 0,
 			.aio_fildes = 0xdefaced1,
 			.aio_buf = 0,
 		},
 		{
 			.aio_data = 0,
 			.aio_key = 0xdefaced0,
 			.aio_lio_opcode = 1,
 			.aio_reqprio = 0xbeef,
 			.aio_fildes = 0xdefaced1,
 			.aio_buf = 0,
 			/* In order to make record valid */
 			.aio_nbytes = (size_t) 0x1020304050607080ULL,
 			.aio_offset = 0xdeadda7abadc0dedULL,
 # ifdef IOCB_FLAG_RESFD
 			.aio_flags = 0xfacef157,
 			.aio_resfd = 0xded1ca7e,
 # endif
 		},
 		{
 			.aio_data = 0,
 			.aio_key = 0xdefaced0,
 			.aio_lio_opcode = 1,
 			.aio_reqprio = 0xbeef,
 			.aio_fildes = 0xdefaced1,
 			.aio_buf = 0xbadc0ffeedefacedULL,
 			.aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
 			.aio_offset = 0xdeadda7abadc0dedULL,
 		},
 		{
 			.aio_data = 0,
 			.aio_key = 0xdefaced0,
 			.aio_lio_opcode = 1,
 			.aio_reqprio = 0xbeef,
 			.aio_fildes = 0xdefaced1,
 			.aio_buf = (unsigned long)data2,
 			.aio_nbytes = sizeof(data2),
 			.aio_offset = 0xdeadda7abadc0dedULL,
 		},
 		{
 			.aio_data = 0,
 			.aio_key = 0xdefaced0,
 			.aio_lio_opcode = 8,
 			.aio_reqprio = 0xbeef,
 			.aio_fildes = 0xdefaced1,
 			.aio_buf = 0,
 			.aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
 			.aio_offset = 0xdeadda7abadc0dedULL,
 		},
 	};
 	const struct iocb *cbv2 = tail_memdup(proto_cbv2, sizeof(proto_cbv2));

 	const struct iocb proto_cbc = {
 		.aio_data = (unsigned long) 0xdeadbeefbadc0dedULL,
 		.aio_reqprio = 99,
 		.aio_fildes = -42
 	};
 	const struct iocb *cbc = tail_memdup(&proto_cbc, sizeof(proto_cbc));

 	const long proto_cbs[] = {
 		(long) &cb[0], (long) &cb[1]
 	};
 	const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));

 	const long proto_cbvs[] = {
 		(long) &cbv[0], (long) &cbv[1],
 	};
 	const long *cbvs = tail_memdup(proto_cbvs, sizeof(proto_cbvs));

 	const long proto_cbvs2[] = {
 		(long) &cbv2[0], (long) &cbv2[1], (long) &cbv2[2],
 		(long) &cbv2[3], (long) &cbv2[4],
 		(long) NULL, (long) 0xffffffffffffffffLL,
 	};
 	const long *cbvs2 = tail_memdup(proto_cbvs2, sizeof(proto_cbvs2));

 	TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
 	*ctx = 0;

 	const unsigned int nr = ARRAY_SIZE(proto_cb);
 	const unsigned long lnr = (unsigned long) (0xdeadbeef00000000ULL | nr);

 	const struct io_event *ev = tail_alloc(nr * sizeof(struct io_event));
 	TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);

 	(void) close(0);
 	if (open("/dev/zero", O_RDONLY))
 		perror_msg_and_skip("open: %s", "/dev/zero");

 	long rc = syscall(__NR_io_setup, 0xdeadbeef, NULL);
 	printf("io_setup(%u, NULL) = %s\n", 0xdeadbeef, sprintrc(rc));

 	rc = syscall(__NR_io_setup, lnr, ctx + 1);
 	printf("io_setup(%u, %p) = %s\n", nr, ctx + 1, sprintrc(rc));

 	if (syscall(__NR_io_setup, lnr, ctx))
 		perror_msg_and_skip("io_setup");
 	printf("io_setup(%u, [%#lx]) = 0\n", nr, *ctx);

 	rc = syscall(__NR_io_submit, bogus_ctx, (long) 0xca7faceddeadf00dLL,
 		     NULL);
 	printf("io_submit(%#lx, %ld, NULL) = %s\n",
 	       bogus_ctx, (long) 0xca7faceddeadf00dLL, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, nr, cbs + nr);
 	printf("io_submit(%#lx, %ld, %p) = %s\n",
 	       *ctx, (long) nr, cbs + nr, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, -1L, cbs);
 	printf("io_submit(%#lx, -1, %p) = %s\n",
 	       *ctx, cbs, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, nr, cbs);
 	if (rc != (long) nr)
 		perror_msg_and_skip("io_submit");
 	printf("io_submit(%#lx, %u, ["
 	       "{data=%#" PRI__x64 ", pread, reqprio=11, fildes=0, "
 	               "buf=%p, nbytes=%u, offset=%" PRI__d64 "}, "
 	       "{data=%#" PRI__x64 ", pread, reqprio=22, fildes=0, "
 	               "buf=%p, nbytes=%u, offset=%" PRI__d64 "}"
 	       "]) = %s\n",
 	       *ctx, nr,
 	       cb[0].aio_data, data0, sizeof_data0, cb[0].aio_offset,
 	       cb[1].aio_data, data1, sizeof_data1, cb[1].aio_offset,
 	       sprintrc(rc));

 	rc = syscall(__NR_io_getevents, bogus_ctx,
 		     (long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
 		     ev + 1, NULL);
 	printf("io_getevents(%#lx, %ld, %ld, %p, NULL) = %s\n",
 	       bogus_ctx, (long) 0xca7faceddeadf00dLL,
 	       (long) 0xba5e1e505ca571e0LL, ev + 1, sprintrc(rc));

 	rc = syscall(__NR_io_getevents, bogus_ctx,
 		     (long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
 		     NULL, ts + 1);
 	printf("io_getevents(%#lx, %ld, %ld, NULL, %p) = %s\n",
 	       bogus_ctx, (long) 0xca7faceddeadf00dLL,
 	       (long) 0xba5e1e505ca571e0LL, ts + 1, sprintrc(rc));

 	ts->tv_sec = 0xdeadbeefU;
 	ts->tv_nsec = 0xfacefeedU;
 	rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
 	printf("io_getevents(%#lx, 0, 0, NULL"
 	       ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
 	       bogus_ctx, (long long) ts->tv_sec,
 	       zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));

 	ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
 	ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
 	rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
 	printf("io_getevents(%#lx, 0, 0, NULL"
 	       ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
 	       bogus_ctx, (long long) ts->tv_sec,
 	       zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));

 	ts->tv_sec = 0;
 	ts->tv_nsec = 123456789;
 	rc = syscall(__NR_io_getevents, *ctx, nr, nr + 1, ev, ts);
 	printf("io_getevents(%#lx, %ld, %ld, ["
 	       "{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}, "
 	       "{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}"
 	       "], {tv_sec=0, tv_nsec=123456789}) = %s\n",
 	       *ctx, (long) nr, (long) (nr + 1),
 	       cb[0].aio_data, &cb[0], sizeof_data0,
 	       cb[1].aio_data, &cb[1], sizeof_data1,
 	       sprintrc(rc));

 	rc = syscall(__NR_io_cancel, bogus_ctx, NULL, NULL);
 	printf("io_cancel(%#lx, NULL, NULL) = %s\n", bogus_ctx, sprintrc(rc));

 	rc = syscall(__NR_io_cancel, *ctx, cbc + 1, ev);
 	printf("io_cancel(%#lx, %p, %p) = %s\n", *ctx, cbc + 1, ev,
 	       sprintrc(rc));

 	rc = syscall(__NR_io_cancel, *ctx, cbc, ev);
 	printf("io_cancel(%#lx, {data=%#" PRI__x64
 	       ", pread, reqprio=99, fildes=-42}, %p) = %s\n",
 	       *ctx, cbc->aio_data, ev, sprintrc(rc));

 	rc = syscall(__NR_io_submit, (unsigned long) 0xfacef157beeff00dULL,
 		     (long) 0xdeadc0defacefeedLL, NULL);
 	printf("io_submit(%#lx, %ld, NULL) = %s\n",
 	       (long) 0xfacef157beeff00dULL,
 	       (long) 0xdeadc0defacefeedLL, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, -1L, cbvs + nr);
 	printf("io_submit(%#lx, %ld, %p) = %s\n",
 	       *ctx, -1L, cbvs + nr, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, 1057L, cbvs2);
 	printf("io_submit(%#lx, %ld, ["
 	       "{data=%#" PRI__x64 ", key=%u, %hu /* SUB_??? */, fildes=%d}, "
 	       "{key=%u, pwrite, reqprio=%hd, fildes=%d, str=NULL"
 	               ", nbytes=%" PRI__u64 ", offset=%" PRI__d64
 # ifdef IOCB_FLAG_RESFD
 	               ", resfd=%d, flags=%#x"
 # endif
 	               "}, "
 	       "{key=%u, pwrite, reqprio=%hd, fildes=%d, buf=%#" PRI__x64
 	               ", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}, "
 	       "{key=%u, pwrite, reqprio=%hd, fildes=%d"
 	               ", str=\"\\0\\1\\2\\3%.28s\"..."
 	               ", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}, "
 	       "{key=%u, pwritev, reqprio=%hd, fildes=%d, buf=%#" PRI__x64
 	               ", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}"
 	       ", {NULL}, {%#lx}, %p]) = %s\n",
 	       *ctx, 1057L,
 	       cbv2[0].aio_data, cbv2[0].aio_key,
 	       cbv2[0].aio_lio_opcode, cbv2[0].aio_fildes,
 	       cbv2[1].aio_key, cbv2[1].aio_reqprio, cbv2[1].aio_fildes,
 	       cbv2[1].aio_nbytes, cbv2[1].aio_offset,
 # ifdef IOCB_FLAG_RESFD
 	       cbv2[1].aio_resfd, cbv2[1].aio_flags,
 # endif
 	       cbv2[2].aio_key, cbv2[2].aio_reqprio, cbv2[2].aio_fildes,
 	       cbv2[2].aio_buf, cbv2[2].aio_nbytes, cbv2[2].aio_offset,
 	       cbv2[3].aio_key, cbv2[3].aio_reqprio, cbv2[3].aio_fildes,
 	       data2 + 4, cbv2[3].aio_nbytes, cbv2[3].aio_offset,
 	       cbv2[4].aio_key, cbv2[4].aio_reqprio, cbv2[4].aio_fildes,
 	       cbv2[4].aio_buf, cbv2[4].aio_nbytes, cbv2[4].aio_offset,
 	       cbvs2[6], cbvs2 + 7, sprintrc(rc));

 	rc = syscall(__NR_io_submit, *ctx, nr, cbvs);
 	if (rc != (long) nr)
 		perror_msg_and_skip("io_submit");
 	printf("io_submit(%#lx, %u, ["
 	       "{data=%#" PRI__x64 ", preadv, reqprio=%hd, fildes=0, "
 	               "iovec=[{iov_base=%p, iov_len=%u}"
 	               ", {iov_base=%p, iov_len=%u}], offset=%" PRI__d64 "}, "
 	       "{data=%#" PRI__x64 ", preadv, reqprio=%hd, fildes=0, "
 	               "iovec=[{iov_base=%p, iov_len=%u}"
 	               ", {iov_base=%p, iov_len=%u}], offset=%" PRI__d64 "}"
 	       "]) = %s\n",
 	       *ctx, nr,
 	       cbv[0].aio_data, cbv[0].aio_reqprio,
 	       iov0[0].iov_base, (unsigned int) iov0[0].iov_len,
 	       iov0[1].iov_base, (unsigned int) iov0[1].iov_len,
 	       cbv[0].aio_offset,
 	       cbv[1].aio_data, cbv[1].aio_reqprio,
 	       iov1[0].iov_base, (unsigned int) iov1[0].iov_len,
 	       iov1[1].iov_base, (unsigned int) iov1[1].iov_len,
 	       cbv[1].aio_offset,
 	       sprintrc(rc));

 	rc = syscall(__NR_io_destroy, bogus_ctx);
 	printf("io_destroy(%#lx) = %s\n",
 	       bogus_ctx, sprintrc(rc));

 	rc = syscall(__NR_io_destroy, *ctx);
 	printf("io_destroy(%#lx) = %s\n", *ctx, sprintrc(rc));

 	puts("+++ exited with 0 +++");
 	return 0;
 }

 #else

 SKIP_MAIN_UNDEFINED("__NR_io_*")

 #endif
	/*
	* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
	* Copyright (c) 2015-2017 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 <fcntl.h>
	#include <inttypes.h>
	#include <stdio.h>
	#include <time.h>
	#include <unistd.h>
	#include <asm/unistd.h>

	#if defined __NR_io_setup \
	&& defined __NR_io_submit \
	&& defined __NR_io_getevents \
	&& defined __NR_io_cancel \
	&& defined __NR_io_destroy
	# include <linux/aio_abi.h>

	int
	main(void)
	{
	static const long bogus_ctx =
	(long) 0xface1e55deadbeefLL;

	static const char data2[] =
	"\0\1\2\3cat test test test 0123456789abcdef";

	const unsigned int sizeof_data0 = 4096;
	const unsigned int sizeof_data1 = 8192;
	void *data0 = tail_alloc(sizeof_data0);
	void *data1 = tail_alloc(sizeof_data1);

	const struct iocb proto_cb[] = {
	{
	.aio_data = (unsigned long) 0xfeedface11111111ULL,
	.aio_reqprio = 11,
	.aio_buf = (unsigned long) data0,
	.aio_offset = (unsigned long) 0xdeface1facefeedULL,
	.aio_nbytes = sizeof_data0
	},
	{
	.aio_data = (unsigned long) 0xfeedface22222222ULL,
	.aio_reqprio = 22,
	.aio_buf = (unsigned long) data1,
	.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
	.aio_nbytes = sizeof_data1
	}
	};
	const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));

	const struct iovec proto_iov0[] = {
	{
	.iov_base = data0,
	.iov_len = sizeof_data0 / 4
	},
	{
	.iov_base = data0 + sizeof_data0 / 4,
	.iov_len = sizeof_data0 / 4 * 3
	},
	};
	const struct iovec *iov0 = tail_memdup(proto_iov0, sizeof(proto_iov0));

	const struct iovec proto_iov1[] = {
	{
	.iov_base = data1,
	.iov_len = sizeof_data1 / 4
	},
	{
	.iov_base = data1 + sizeof_data1 / 4,
	.iov_len = sizeof_data1 / 4 * 3
	},
	};
	const struct iovec *iov1 = tail_memdup(proto_iov1, sizeof(proto_iov1));

	const struct iocb proto_cbv[] = {
	{
	.aio_data = (unsigned long) 0xfeed11111111faceULL,
	.aio_lio_opcode = 7,
	.aio_reqprio = 111,
	.aio_buf = (unsigned long) iov0,
	.aio_offset = (unsigned long) 0xdeface1facefeedULL,
	.aio_nbytes = ARRAY_SIZE(proto_iov0)
	},
	{
	.aio_data = (unsigned long) 0xfeed22222222faceULL,
	.aio_lio_opcode = 7,
	.aio_reqprio = 222,
	.aio_buf = (unsigned long) iov1,
	.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
	.aio_nbytes = ARRAY_SIZE(proto_iov1)
	}
	};
	const struct iocb *cbv = tail_memdup(proto_cbv, sizeof(proto_cbv));

	/* For additional decoder testing */
	const struct iocb proto_cbv2[] = {
	{
	.aio_data = 0xbadfacedc0ffeeedULL,
	.aio_key = 0xdefaced0,
	.aio_lio_opcode = 0xf00d,
	.aio_reqprio = 0,
	.aio_fildes = 0xdefaced1,
	.aio_buf = 0,
	},
	{
	.aio_data = 0,
	.aio_key = 0xdefaced0,
	.aio_lio_opcode = 1,
	.aio_reqprio = 0xbeef,
	.aio_fildes = 0xdefaced1,
	.aio_buf = 0,
	/* In order to make record valid */
	.aio_nbytes = (size_t) 0x1020304050607080ULL,
	.aio_offset = 0xdeadda7abadc0dedULL,
	# ifdef IOCB_FLAG_RESFD
	.aio_flags = 0xfacef157,
	.aio_resfd = 0xded1ca7e,
	# endif
	},
	{
	.aio_data = 0,
	.aio_key = 0xdefaced0,
	.aio_lio_opcode = 1,
	.aio_reqprio = 0xbeef,
	.aio_fildes = 0xdefaced1,
	.aio_buf = 0xbadc0ffeedefacedULL,
	.aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
	.aio_offset = 0xdeadda7abadc0dedULL,
	},
	{
	.aio_data = 0,
	.aio_key = 0xdefaced0,
	.aio_lio_opcode = 1,
	.aio_reqprio = 0xbeef,
	.aio_fildes = 0xdefaced1,
	.aio_buf = (unsigned long)data2,
	.aio_nbytes = sizeof(data2),
	.aio_offset = 0xdeadda7abadc0dedULL,
	},
	{
	.aio_data = 0,
	.aio_key = 0xdefaced0,
	.aio_lio_opcode = 8,
	.aio_reqprio = 0xbeef,
	.aio_fildes = 0xdefaced1,
	.aio_buf = 0,
	.aio_nbytes = 0x8090a0b0c0d0e0f0ULL,
	.aio_offset = 0xdeadda7abadc0dedULL,
	},
	};
	const struct iocb *cbv2 = tail_memdup(proto_cbv2, sizeof(proto_cbv2));

	const struct iocb proto_cbc = {
	.aio_data = (unsigned long) 0xdeadbeefbadc0dedULL,
	.aio_reqprio = 99,
	.aio_fildes = -42
	};
	const struct iocb *cbc = tail_memdup(&proto_cbc, sizeof(proto_cbc));

	const long proto_cbs[] = {
	(long) &cb[0], (long) &cb[1]
	};
	const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));

	const long proto_cbvs[] = {
	(long) &cbv[0], (long) &cbv[1],
	};
	const long *cbvs = tail_memdup(proto_cbvs, sizeof(proto_cbvs));

	const long proto_cbvs2[] = {
	(long) &cbv2[0], (long) &cbv2[1], (long) &cbv2[2],
	(long) &cbv2[3], (long) &cbv2[4],
	(long) NULL, (long) 0xffffffffffffffffLL,
	};
	const long *cbvs2 = tail_memdup(proto_cbvs2, sizeof(proto_cbvs2));

	TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
	*ctx = 0;

	const unsigned int nr = ARRAY_SIZE(proto_cb);
	const unsigned long lnr = (unsigned long) (0xdeadbeef00000000ULL \| nr);

	const struct io_event ev = tail_alloc(nr sizeof(struct io_event));
	TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);

	(void) close(0);
	if (open("/dev/zero", O_RDONLY))
	perror_msg_and_skip("open: %s", "/dev/zero");

	long rc = syscall(__NR_io_setup, 0xdeadbeef, NULL);
	printf("io_setup(%u, NULL) = %s\n", 0xdeadbeef, sprintrc(rc));

	rc = syscall(__NR_io_setup, lnr, ctx + 1);
	printf("io_setup(%u, %p) = %s\n", nr, ctx + 1, sprintrc(rc));

	if (syscall(__NR_io_setup, lnr, ctx))
	perror_msg_and_skip("io_setup");
	printf("io_setup(%u, [%#lx]) = 0\n", nr, *ctx);

	rc = syscall(__NR_io_submit, bogus_ctx, (long) 0xca7faceddeadf00dLL,
	NULL);
	printf("io_submit(%#lx, %ld, NULL) = %s\n",
	bogus_ctx, (long) 0xca7faceddeadf00dLL, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, nr, cbs + nr);
	printf("io_submit(%#lx, %ld, %p) = %s\n",
	*ctx, (long) nr, cbs + nr, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, -1L, cbs);
	printf("io_submit(%#lx, -1, %p) = %s\n",
	*ctx, cbs, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, nr, cbs);
	if (rc != (long) nr)
	perror_msg_and_skip("io_submit");
	printf("io_submit(%#lx, %u, ["
	"{data=%#" PRI__x64 ", pread, reqprio=11, fildes=0, "
	"buf=%p, nbytes=%u, offset=%" PRI__d64 "}, "
	"{data=%#" PRI__x64 ", pread, reqprio=22, fildes=0, "
	"buf=%p, nbytes=%u, offset=%" PRI__d64 "}"
	"]) = %s\n",
	*ctx, nr,
	cb[0].aio_data, data0, sizeof_data0, cb[0].aio_offset,
	cb[1].aio_data, data1, sizeof_data1, cb[1].aio_offset,
	sprintrc(rc));

	rc = syscall(__NR_io_getevents, bogus_ctx,
	(long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
	ev + 1, NULL);
	printf("io_getevents(%#lx, %ld, %ld, %p, NULL) = %s\n",
	bogus_ctx, (long) 0xca7faceddeadf00dLL,
	(long) 0xba5e1e505ca571e0LL, ev + 1, sprintrc(rc));

	rc = syscall(__NR_io_getevents, bogus_ctx,
	(long) 0xca7faceddeadf00dLL, (long) 0xba5e1e505ca571e0LL,
	NULL, ts + 1);
	printf("io_getevents(%#lx, %ld, %ld, NULL, %p) = %s\n",
	bogus_ctx, (long) 0xca7faceddeadf00dLL,
	(long) 0xba5e1e505ca571e0LL, ts + 1, sprintrc(rc));

	ts->tv_sec = 0xdeadbeefU;
	ts->tv_nsec = 0xfacefeedU;
	rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
	printf("io_getevents(%#lx, 0, 0, NULL"
	", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
	bogus_ctx, (long long) ts->tv_sec,
	zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));

	ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
	ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
	rc = syscall(__NR_io_getevents, bogus_ctx, 0, 0, 0, ts);
	printf("io_getevents(%#lx, 0, 0, NULL"
	", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
	bogus_ctx, (long long) ts->tv_sec,
	zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));

	ts->tv_sec = 0;
	ts->tv_nsec = 123456789;
	rc = syscall(__NR_io_getevents, *ctx, nr, nr + 1, ev, ts);
	printf("io_getevents(%#lx, %ld, %ld, ["
	"{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}, "
	"{data=%#" PRI__x64 ", obj=%p, res=%u, res2=0}"
	"], {tv_sec=0, tv_nsec=123456789}) = %s\n",
	*ctx, (long) nr, (long) (nr + 1),
	cb[0].aio_data, &cb[0], sizeof_data0,
	cb[1].aio_data, &cb[1], sizeof_data1,
	sprintrc(rc));

	rc = syscall(__NR_io_cancel, bogus_ctx, NULL, NULL);
	printf("io_cancel(%#lx, NULL, NULL) = %s\n", bogus_ctx, sprintrc(rc));

	rc = syscall(__NR_io_cancel, *ctx, cbc + 1, ev);
	printf("io_cancel(%#lx, %p, %p) = %s\n", *ctx, cbc + 1, ev,
	sprintrc(rc));

	rc = syscall(__NR_io_cancel, *ctx, cbc, ev);
	printf("io_cancel(%#lx, {data=%#" PRI__x64
	", pread, reqprio=99, fildes=-42}, %p) = %s\n",
	*ctx, cbc->aio_data, ev, sprintrc(rc));

	rc = syscall(__NR_io_submit, (unsigned long) 0xfacef157beeff00dULL,
	(long) 0xdeadc0defacefeedLL, NULL);
	printf("io_submit(%#lx, %ld, NULL) = %s\n",
	(long) 0xfacef157beeff00dULL,
	(long) 0xdeadc0defacefeedLL, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, -1L, cbvs + nr);
	printf("io_submit(%#lx, %ld, %p) = %s\n",
	*ctx, -1L, cbvs + nr, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, 1057L, cbvs2);
	printf("io_submit(%#lx, %ld, ["
	"{data=%#" PRI__x64 ", key=%u, %hu /* SUB_??? */, fildes=%d}, "
	"{key=%u, pwrite, reqprio=%hd, fildes=%d, str=NULL"
	", nbytes=%" PRI__u64 ", offset=%" PRI__d64
	# ifdef IOCB_FLAG_RESFD
	", resfd=%d, flags=%#x"
	# endif
	"}, "
	"{key=%u, pwrite, reqprio=%hd, fildes=%d, buf=%#" PRI__x64
	", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}, "
	"{key=%u, pwrite, reqprio=%hd, fildes=%d"
	", str=\"\\0\\1\\2\\3%.28s\"..."
	", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}, "
	"{key=%u, pwritev, reqprio=%hd, fildes=%d, buf=%#" PRI__x64
	", nbytes=%" PRI__u64 ", offset=%" PRI__d64 "}"
	", {NULL}, {%#lx}, %p]) = %s\n",
	*ctx, 1057L,
	cbv2[0].aio_data, cbv2[0].aio_key,
	cbv2[0].aio_lio_opcode, cbv2[0].aio_fildes,
	cbv2[1].aio_key, cbv2[1].aio_reqprio, cbv2[1].aio_fildes,
	cbv2[1].aio_nbytes, cbv2[1].aio_offset,
	# ifdef IOCB_FLAG_RESFD
	cbv2[1].aio_resfd, cbv2[1].aio_flags,
	# endif
	cbv2[2].aio_key, cbv2[2].aio_reqprio, cbv2[2].aio_fildes,
	cbv2[2].aio_buf, cbv2[2].aio_nbytes, cbv2[2].aio_offset,
	cbv2[3].aio_key, cbv2[3].aio_reqprio, cbv2[3].aio_fildes,
	data2 + 4, cbv2[3].aio_nbytes, cbv2[3].aio_offset,
	cbv2[4].aio_key, cbv2[4].aio_reqprio, cbv2[4].aio_fildes,
	cbv2[4].aio_buf, cbv2[4].aio_nbytes, cbv2[4].aio_offset,
	cbvs2[6], cbvs2 + 7, sprintrc(rc));

	rc = syscall(__NR_io_submit, *ctx, nr, cbvs);
	if (rc != (long) nr)
	perror_msg_and_skip("io_submit");
	printf("io_submit(%#lx, %u, ["
	"{data=%#" PRI__x64 ", preadv, reqprio=%hd, fildes=0, "
	"iovec=[{iov_base=%p, iov_len=%u}"
	", {iov_base=%p, iov_len=%u}], offset=%" PRI__d64 "}, "
	"{data=%#" PRI__x64 ", preadv, reqprio=%hd, fildes=0, "
	"iovec=[{iov_base=%p, iov_len=%u}"
	", {iov_base=%p, iov_len=%u}], offset=%" PRI__d64 "}"
	"]) = %s\n",
	*ctx, nr,
	cbv[0].aio_data, cbv[0].aio_reqprio,
	iov0[0].iov_base, (unsigned int) iov0[0].iov_len,
	iov0[1].iov_base, (unsigned int) iov0[1].iov_len,
	cbv[0].aio_offset,
	cbv[1].aio_data, cbv[1].aio_reqprio,
	iov1[0].iov_base, (unsigned int) iov1[0].iov_len,
	iov1[1].iov_base, (unsigned int) iov1[1].iov_len,
	cbv[1].aio_offset,
	sprintrc(rc));

	rc = syscall(__NR_io_destroy, bogus_ctx);
	printf("io_destroy(%#lx) = %s\n",
	bogus_ctx, sprintrc(rc));

	rc = syscall(__NR_io_destroy, *ctx);
	printf("io_destroy(%#lx) = %s\n", *ctx, sprintrc(rc));

	puts("+++ exited with 0 +++");
	return 0;
	}

	#else

	SKIP_MAIN_UNDEFINED("__NR_io_*")

	#endif