1 /* 2 * Copyright (c) 2012 Denys Vlasenko <vda.linux (at) googlemail.com> 3 * Copyright (c) 2012-2015 Dmitry V. Levin <ldv (at) altlinux.org> 4 * Copyright (c) 2014-2017 The strace developers. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "defs.h" 31 32 SYS_FUNC(process_vm_readv) 33 { 34 if (entering(tcp)) { 35 /* arg 1: pid */ 36 tprintf("%d, ", (int) tcp->u_arg[0]); 37 } else { 38 kernel_ulong_t local_iovcnt = tcp->u_arg[2]; 39 kernel_ulong_t remote_iovcnt = tcp->u_arg[4]; 40 kernel_ulong_t flags = tcp->u_arg[5]; 41 42 /* arg 2: local iov */ 43 tprint_iov_upto(tcp, local_iovcnt, tcp->u_arg[1], 44 syserror(tcp) ? IOV_DECODE_ADDR : IOV_DECODE_STR, 45 tcp->u_rval); 46 /* arg 3: local iovcnt */ 47 tprintf(", %" PRI_klu ", ", local_iovcnt); 48 /* arg 4: remote iov */ 49 tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], 50 IOV_DECODE_ADDR); 51 /* arg 5: remote iovcnt */ 52 /* arg 6: flags */ 53 tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags); 54 } 55 return 0; 56 } 57 58 SYS_FUNC(process_vm_writev) 59 { 60 kernel_ulong_t local_iovcnt = tcp->u_arg[2]; 61 kernel_ulong_t remote_iovcnt = tcp->u_arg[4]; 62 kernel_ulong_t flags = tcp->u_arg[5]; 63 64 /* arg 1: pid */ 65 tprintf("%d, ", (int) tcp->u_arg[0]); 66 /* arg 2: local iov */ 67 tprint_iov(tcp, local_iovcnt, tcp->u_arg[1], IOV_DECODE_STR); 68 /* arg 3: local iovcnt */ 69 tprintf(", %" PRI_klu ", ", local_iovcnt); 70 /* arg 4: remote iov */ 71 tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], IOV_DECODE_ADDR); 72 /* arg 5: remote iovcnt */ 73 /* arg 6: flags */ 74 tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags); 75 76 return RVAL_DECODED; 77 } 78
