1 /* 2 * Copyright (c) 2003-2007 Ulrich Drepper <drepper (at) redhat.com> 3 * Copyright (c) 2005-2016 Dmitry V. Levin <ldv (at) altlinux.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "defs.h" 30 31 static bool 32 print_node(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data) 33 { 34 if (elem_size < sizeof(kernel_ulong_t)) { 35 tprintf("%#0*x", (int) elem_size * 2 + 2, 36 * (unsigned int *) elem_buf); 37 } else { 38 tprintf("%#0*" PRI_klx, (int) elem_size * 2 + 2, 39 * (kernel_ulong_t *) elem_buf); 40 } 41 42 return true; 43 } 44 45 static void 46 print_nodemask(struct tcb *const tcp, const kernel_ulong_t addr, 47 const kernel_ulong_t maxnodes) 48 { 49 const unsigned int bits_per_long = 8 * current_wordsize; 50 const kernel_ulong_t nmemb = 51 (maxnodes + bits_per_long - 2) / bits_per_long; 52 53 if (nmemb < maxnodes / bits_per_long || 54 (maxnodes && !nmemb)) { 55 printaddr(addr); 56 return; 57 } 58 59 kernel_ulong_t buf; 60 print_array(tcp, addr, nmemb, &buf, current_wordsize, 61 umoven_or_printaddr, print_node, 0); 62 } 63 64 SYS_FUNC(migrate_pages) 65 { 66 tprintf("%d, %" PRI_klu ", ", (int) tcp->u_arg[0], tcp->u_arg[1]); 67 print_nodemask(tcp, tcp->u_arg[2], tcp->u_arg[1]); 68 tprints(", "); 69 print_nodemask(tcp, tcp->u_arg[3], tcp->u_arg[1]); 70 71 return RVAL_DECODED; 72 } 73 74 #include "xlat/policies.h" 75 #include "xlat/mbindflags.h" 76 77 SYS_FUNC(mbind) 78 { 79 printaddr(tcp->u_arg[0]); 80 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]); 81 printxval64(policies, tcp->u_arg[2], "MPOL_???"); 82 tprints(", "); 83 print_nodemask(tcp, tcp->u_arg[3], tcp->u_arg[4]); 84 tprintf(", %" PRI_klu ", ", tcp->u_arg[4]); 85 printflags(mbindflags, tcp->u_arg[5], "MPOL_???"); 86 87 return RVAL_DECODED; 88 } 89 90 SYS_FUNC(set_mempolicy) 91 { 92 printxval(policies, tcp->u_arg[0], "MPOL_???"); 93 tprints(", "); 94 print_nodemask(tcp, tcp->u_arg[1], tcp->u_arg[2]); 95 tprintf(", %" PRI_klu, tcp->u_arg[2]); 96 97 return RVAL_DECODED; 98 } 99 100 #include "xlat/mempolicyflags.h" 101 102 SYS_FUNC(get_mempolicy) 103 { 104 if (exiting(tcp)) { 105 int pol; 106 if (!umove_or_printaddr(tcp, tcp->u_arg[0], &pol)) { 107 tprints("["); 108 printxval(policies, pol, "MPOL_???"); 109 tprints("]"); 110 } 111 tprints(", "); 112 print_nodemask(tcp, tcp->u_arg[1], tcp->u_arg[2]); 113 tprintf(", %" PRI_klu ", ", tcp->u_arg[2]); 114 printaddr(tcp->u_arg[3]); 115 tprints(", "); 116 printflags64(mempolicyflags, tcp->u_arg[4], "MPOL_???"); 117 } 118 return 0; 119 } 120 121 #include "xlat/move_pages_flags.h" 122 123 static bool 124 print_addr(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data) 125 { 126 kernel_ulong_t addr; 127 128 if (elem_size < sizeof(addr)) { 129 addr = * (unsigned int *) elem_buf; 130 } else { 131 addr = * (kernel_ulong_t *) elem_buf; 132 } 133 134 printaddr(addr); 135 136 return true; 137 } 138 139 static bool 140 print_status(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data) 141 { 142 const int status = * (int *) elem_buf; 143 144 if (status < 0 && (unsigned) -status < nerrnos) 145 tprintf("%s", errnoent[-status]); 146 else 147 tprintf("%d", status); 148 149 return true; 150 } 151 152 static bool 153 print_int(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data) 154 { 155 tprintf("%d", * (int *) elem_buf); 156 157 return true; 158 } 159 160 SYS_FUNC(move_pages) 161 { 162 const kernel_ulong_t npages = tcp->u_arg[1]; 163 kernel_ulong_t buf; 164 165 if (entering(tcp)) { 166 tprintf("%d, %" PRI_klu ", ", (int) tcp->u_arg[0], npages); 167 print_array(tcp, tcp->u_arg[2], npages, &buf, current_wordsize, 168 umoven_or_printaddr, print_addr, 0); 169 tprints(", "); 170 print_array(tcp, tcp->u_arg[3], npages, &buf, sizeof(int), 171 umoven_or_printaddr, print_int, 0); 172 tprints(", "); 173 } else { 174 print_array(tcp, tcp->u_arg[4], npages, &buf, sizeof(int), 175 umoven_or_printaddr, print_status, 0); 176 tprints(", "); 177 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???"); 178 } 179 return 0; 180 } 181
