1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Check decoding of preadv2 and pwritev2 syscalls. 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 539bac055674d23770b9a724221b728e443196ea7Elliott Hughes * Copyright (c) 2016-2017 The strace developers. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <asm/unistd.h> 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "scno.h" 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#if defined __NR_preadv2 && defined __NR_pwritev2 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <errno.h> 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <fcntl.h> 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdio.h> 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <sys/uio.h> 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <unistd.h> 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic int 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughespr(const int fd, const struct iovec *const vec, 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned long vlen, const unsigned long pos) 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return syscall(__NR_preadv2, fd, vec, vlen, pos, 0L, 0L); 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic int 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughespw(const int fd, const struct iovec *const vec, 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned long vlen, const unsigned long pos) 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return syscall(__NR_pwritev2, fd, vec, vlen, pos, 0L, 0L); 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesdumpio(void) 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static char tmp[] = "preadv2-pwritev2-tmpfile"; 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (open(tmp, O_CREAT|O_RDONLY|O_TRUNC, 0600) != 0) 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("creat: %s", tmp); 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (open(tmp, O_WRONLY) != 1) 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("open: %s", tmp); 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (unlink(tmp)) 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("unlink: %s", tmp); 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const char w0_c[] = "012"; 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const char *w0_d = hexdump_strdup(w0_c); 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *w0 = tail_memdup(w0_c, LENGTH_OF(w0_c)); 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const char w1_c[] = "34567"; 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const char *w1_d = hexdump_strdup(w1_c); 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *w1 = tail_memdup(w1_c, LENGTH_OF(w1_c)); 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const char w2_c[] = "89abcde"; 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const char *w2_d = hexdump_strdup(w2_c); 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *w2 = tail_memdup(w2_c, LENGTH_OF(w2_c)); 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes long rc; 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const char r0_c[] = "01234567"; 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const char *r0_d = hexdump_strdup(r0_c); 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes static const char r1_c[] = "89abcde"; 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const char *r1_d = hexdump_strdup(r1_c); 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 87d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct iovec w_iov_[] = { 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes { 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = w0, 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = LENGTH_OF(w0_c) 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }, { 92d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = w1, 93d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = LENGTH_OF(w1_c) 94d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }, { 95d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = w2, 96d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = LENGTH_OF(w2_c) 97d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 98d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }; 99d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct iovec *w_iov = tail_memdup(w_iov_, sizeof(w_iov_)); 100d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 101d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = pw(1, w_iov, 0, 0); 102d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (rc) 103d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("pwritev2: expected 0, returned %ld", rc); 104d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("pwritev2(1, [], 0, 0, 0) = 0\n"); 105d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 106d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = pw(1, w_iov + ARRAY_SIZE(w_iov_) - 1, 2, 0); 107d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("pwritev2(1, [{iov_base=\"%s\", iov_len=%u}, %p], 2, 0, 0)" 108d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " = %ld %s (%m)\n", 109d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes w2_c, LENGTH_OF(w2_c), w_iov + ARRAY_SIZE(w_iov_), 110d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc, errno2name()); 111d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 112d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned int w_len = 113d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes LENGTH_OF(w0_c) + LENGTH_OF(w1_c) + LENGTH_OF(w2_c); 114d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 115d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = pw(1, w_iov, ARRAY_SIZE(w_iov_), 0); 116d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (rc != (int) w_len) 117d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("pwritev2: expected %u, returned %ld", 118d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes w_len, rc); 119d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes close(1); 120d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("pwritev2(1, [{iov_base=\"%s\", iov_len=%u}" 121d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", {iov_base=\"%s\", iov_len=%u}" 122d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", {iov_base=\"%s\", iov_len=%u}], %u, 0, 0) = %u\n" 123d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " * %u bytes in buffer 0\n" 124d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " | 00000 %-49s %-16s |\n" 125d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " * %u bytes in buffer 1\n" 126d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " | 00000 %-49s %-16s |\n" 127d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " * %u bytes in buffer 2\n" 128d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " | 00000 %-49s %-16s |\n", 129d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes w0_c, LENGTH_OF(w0_c), w1_c, LENGTH_OF(w1_c), 130dc75b01004a0588c1eb3bc26d7248a6e473b2cddElliott Hughes w2_c, LENGTH_OF(w2_c), (unsigned int) ARRAY_SIZE(w_iov_), w_len, 131d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes LENGTH_OF(w0_c), w0_d, w0_c, 132d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes LENGTH_OF(w1_c), w1_d, w1_c, LENGTH_OF(w2_c), w2_d, w2_c); 133d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 134d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned int r_len = (w_len + 1) / 2; 135d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *r0 = tail_alloc(r_len); 136d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct iovec r0_iov_[] = { 137d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes { 138d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = r0, 139d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = r_len 140d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 141d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }; 142d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct iovec *r_iov = tail_memdup(r0_iov_, sizeof(r0_iov_)); 143d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 144d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = pr(0, r_iov, ARRAY_SIZE(r0_iov_), 0); 145d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (rc != (int) r_len) 146d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("preadv2: expected %u, returned %ld", 147d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes r_len, rc); 148d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("preadv2(0, [{iov_base=\"%s\", iov_len=%u}], %u, 0, 0) = %u\n" 149d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " * %u bytes in buffer 0\n" 150d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " | 00000 %-49s %-16s |\n", 151dc75b01004a0588c1eb3bc26d7248a6e473b2cddElliott Hughes r0_c, r_len, (unsigned int) ARRAY_SIZE(r0_iov_), 152dc75b01004a0588c1eb3bc26d7248a6e473b2cddElliott Hughes r_len, r_len, r0_d, r0_c); 153d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 154d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *r1 = tail_alloc(r_len); 155d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *r2 = tail_alloc(w_len); 156d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct iovec r1_iov_[] = { 157d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes { 158d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = r1, 159d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = r_len 160d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }, 161d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes { 162d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_base = r2, 163d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .iov_len = w_len 164d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 165d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }; 166d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes r_iov = tail_memdup(r1_iov_, sizeof(r1_iov_)); 167d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 168d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes rc = pr(0, r_iov, ARRAY_SIZE(r1_iov_), r_len); 169d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (rc != (int) w_len - (int) r_len) 170d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("preadv2: expected %d, returned %ld", 171d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes (int) w_len - r_len, rc); 172d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("preadv2(0, [{iov_base=\"%s\", iov_len=%u}" 173d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", {iov_base=\"\", iov_len=%u}], %u, %u, 0) = %u\n" 174d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " * %u bytes in buffer 0\n" 175d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " | 00000 %-49s %-16s |\n", 176dc75b01004a0588c1eb3bc26d7248a6e473b2cddElliott Hughes r1_c, r_len, w_len, (unsigned int) ARRAY_SIZE(r1_iov_), 177d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes r_len, w_len - r_len, 178d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes w_len - r_len, r1_d, r1_c); 179d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes close(0); 180d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 181d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 182d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 183d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(void) 184d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 185d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const kernel_ulong_t vlen = (kernel_ulong_t) 0xfac1fed2dad3bef4ULL; 18639bac055674d23770b9a724221b728e443196ea7Elliott Hughes const unsigned long long pos = 0x7ac5fed6dad7bef8; 187d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const kernel_ulong_t pos_l = (kernel_ulong_t) pos; 18839bac055674d23770b9a724221b728e443196ea7Elliott Hughes long rc; 18939bac055674d23770b9a724221b728e443196ea7Elliott Hughes int test_dumpio; 190d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 191d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("%s", ""); 192d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 19339bac055674d23770b9a724221b728e443196ea7Elliott Hughes#if defined __x86_64__ && defined __ILP32__ 19439bac055674d23770b9a724221b728e443196ea7Elliott Hughes /* 19539bac055674d23770b9a724221b728e443196ea7Elliott Hughes * x32 is the only architecture where preadv2 takes 5 arguments, 19639bac055674d23770b9a724221b728e443196ea7Elliott Hughes * see preadv64v2 in kernel sources. 19739bac055674d23770b9a724221b728e443196ea7Elliott Hughes */ 19839bac055674d23770b9a724221b728e443196ea7Elliott Hughes rc = syscall(__NR_preadv2, -1, NULL, vlen, pos_l, 1); 19939bac055674d23770b9a724221b728e443196ea7Elliott Hughes#else 20039bac055674d23770b9a724221b728e443196ea7Elliott Hughes const kernel_ulong_t pos_h = 20139bac055674d23770b9a724221b728e443196ea7Elliott Hughes (sizeof(pos_l) == sizeof(pos)) ? 20239bac055674d23770b9a724221b728e443196ea7Elliott Hughes (kernel_ulong_t) 0xbadc0deddeadbeefULL : 20339bac055674d23770b9a724221b728e443196ea7Elliott Hughes (kernel_ulong_t) (pos >> 32); 20439bac055674d23770b9a724221b728e443196ea7Elliott Hughes rc = syscall(__NR_preadv2, -1, NULL, vlen, pos_l, pos_h, 1); 20539bac055674d23770b9a724221b728e443196ea7Elliott Hughes#endif 20639bac055674d23770b9a724221b728e443196ea7Elliott Hughes if (rc != -1 || (ENOSYS != errno && EBADF != errno)) 20739bac055674d23770b9a724221b728e443196ea7Elliott Hughes perror_msg_and_fail("preadv2"); 20839bac055674d23770b9a724221b728e443196ea7Elliott Hughes test_dumpio = EBADF == errno; 20939bac055674d23770b9a724221b728e443196ea7Elliott Hughes tprintf("preadv2(-1, NULL, %lu, %lld, RWF_HIPRI) = %s\n", 21039bac055674d23770b9a724221b728e443196ea7Elliott Hughes (unsigned long) vlen, pos, sprintrc(rc)); 21139bac055674d23770b9a724221b728e443196ea7Elliott Hughes 21239bac055674d23770b9a724221b728e443196ea7Elliott Hughes#if defined __x86_64__ && defined __ILP32__ 21339bac055674d23770b9a724221b728e443196ea7Elliott Hughes /* 21439bac055674d23770b9a724221b728e443196ea7Elliott Hughes * x32 is the only architecture where pwritev2 takes 5 arguments, 21539bac055674d23770b9a724221b728e443196ea7Elliott Hughes * see pwritev64v2 in kernel sources. 21639bac055674d23770b9a724221b728e443196ea7Elliott Hughes */ 21739bac055674d23770b9a724221b728e443196ea7Elliott Hughes rc = syscall(__NR_pwritev2, -1, NULL, vlen, pos_l, 1); 21839bac055674d23770b9a724221b728e443196ea7Elliott Hughes#else 21939bac055674d23770b9a724221b728e443196ea7Elliott Hughes rc = syscall(__NR_pwritev2, -1, NULL, vlen, pos_l, pos_h, 1); 22039bac055674d23770b9a724221b728e443196ea7Elliott Hughes#endif 22139bac055674d23770b9a724221b728e443196ea7Elliott Hughes if (rc != -1 || (ENOSYS != errno && EBADF != errno)) 22239bac055674d23770b9a724221b728e443196ea7Elliott Hughes perror_msg_and_fail("pwritev2"); 22339bac055674d23770b9a724221b728e443196ea7Elliott Hughes tprintf("pwritev2(-1, NULL, %lu, %lld, RWF_HIPRI) = %s\n", 22439bac055674d23770b9a724221b728e443196ea7Elliott Hughes (unsigned long) vlen, pos, sprintrc(rc)); 225d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 226d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (test_dumpio) 227d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes dumpio(); 228d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 229d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("%s\n", "+++ exited with 0 +++"); 230d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 231d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 232d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 233d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 234d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 235d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott HughesSKIP_MAIN_UNDEFINED("__NR_preadv2 && __NR_pwritev2") 236d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 237d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 238