1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2022 Dmitry Chagin <dchagin@FreeBSD.org> 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/types.h> 32 #include <sys/proc.h> 33 #include <stdbool.h> 34 #include <stdio.h> 35 #include <sysdecode.h> 36 37 #include "support.h" 38 39 #ifdef __aarch64__ 40 #include <arm64/linux/linux.h> 41 #elif __i386__ 42 #include <i386/linux/linux.h> 43 #elif __amd64__ 44 #ifdef COMPAT_32BIT 45 #include <amd64/linux32/linux.h> 46 #else 47 #include <amd64/linux/linux.h> 48 #endif 49 #else 50 #error "Unsupported Linux arch" 51 #endif 52 53 #include <compat/linux/linux.h> 54 #include <compat/linux/linux_file.h> 55 #include <compat/linux/linux_timer.h> 56 57 #define X(a,b) { a, #b }, 58 #define XEND { 0, NULL } 59 60 #define TABLE_START(n) static struct name_table n[] = { 61 #define TABLE_ENTRY X 62 #define TABLE_END XEND }; 63 64 #include "tables_linux.h" 65 66 #undef TABLE_START 67 #undef TABLE_ENTRY 68 #undef TABLE_END 69 70 static const char *linux_signames[] = { 71 [LINUX_SIGHUP] = "SIGHUP", 72 [LINUX_SIGINT] = "SIGINT", 73 [LINUX_SIGQUIT] = "SIGQUIT", 74 [LINUX_SIGILL] = "SIGILL", 75 [LINUX_SIGTRAP] = "SIGTRAP", 76 [LINUX_SIGABRT] = "SIGABRT", 77 [LINUX_SIGBUS] = "SIGBUS", 78 [LINUX_SIGFPE] = "SIGFPE", 79 [LINUX_SIGKILL] = "SIGKILL", 80 [LINUX_SIGUSR1] = "SIGUSR1", 81 [LINUX_SIGSEGV] = "SIGSEGV", 82 [LINUX_SIGUSR2] = "SIGUSR2", 83 [LINUX_SIGPIPE] = "SIGPIPE", 84 [LINUX_SIGALRM] = "SIGALRM", 85 [LINUX_SIGTERM] = "SIGTERM", 86 [LINUX_SIGSTKFLT] = "SIGSTKFLT", 87 [LINUX_SIGCHLD] = "SIGCHLD", 88 [LINUX_SIGCONT] = "SIGCONT", 89 [LINUX_SIGSTOP] = "SIGSTOP", 90 [LINUX_SIGTSTP] = "SIGTSTP", 91 [LINUX_SIGTTIN] = "SIGTTIN", 92 [LINUX_SIGTTOU] = "SIGTTOU", 93 [LINUX_SIGURG] = "SIGURG", 94 [LINUX_SIGXCPU] = "SIGXCPU", 95 [LINUX_SIGXFSZ] = "SIGXFSZ", 96 [LINUX_SIGVTALRM] = "SIGVTALRM", 97 [LINUX_SIGPROF] = "SIGPROF", 98 [LINUX_SIGWINCH] = "SIGWINCH", 99 [LINUX_SIGIO] = "SIGIO", 100 [LINUX_SIGPWR] = "SIGPWR", 101 [LINUX_SIGSYS] = "SIGSYS", 102 103 [LINUX_SIGRTMIN] = "SIGCANCEL", 104 [LINUX_SIGRTMIN + 1] = "SIGSETXID", 105 [LINUX_SIGRTMIN + 2] = "SIGRT2", 106 [LINUX_SIGRTMIN + 3] = "SIGRT3", 107 [LINUX_SIGRTMIN + 4] = "SIGRT4", 108 [LINUX_SIGRTMIN + 5] = "SIGRT5", 109 [LINUX_SIGRTMIN + 6] = "SIGRT6", 110 [LINUX_SIGRTMIN + 7] = "SIGRT7", 111 [LINUX_SIGRTMIN + 8] = "SIGRT8", 112 [LINUX_SIGRTMIN + 9] = "SIGRT9", 113 [LINUX_SIGRTMIN + 10] = "SIGRT10", 114 [LINUX_SIGRTMIN + 11] = "SIGRT11", 115 [LINUX_SIGRTMIN + 12] = "SIGRT12", 116 [LINUX_SIGRTMIN + 13] = "SIGRT13", 117 [LINUX_SIGRTMIN + 14] = "SIGRT14", 118 [LINUX_SIGRTMIN + 15] = "SIGRT15", 119 [LINUX_SIGRTMIN + 16] = "SIGRT16", 120 [LINUX_SIGRTMIN + 17] = "SIGRT17", 121 [LINUX_SIGRTMIN + 18] = "SIGRT18", 122 [LINUX_SIGRTMIN + 19] = "SIGRT19", 123 [LINUX_SIGRTMIN + 20] = "SIGRT20", 124 [LINUX_SIGRTMIN + 21] = "SIGRT21", 125 [LINUX_SIGRTMIN + 22] = "SIGRT22", 126 [LINUX_SIGRTMIN + 23] = "SIGRT23", 127 [LINUX_SIGRTMIN + 24] = "SIGRT24", 128 [LINUX_SIGRTMIN + 25] = "SIGRT25", 129 [LINUX_SIGRTMIN + 26] = "SIGRT26", 130 [LINUX_SIGRTMIN + 27] = "SIGRT27", 131 [LINUX_SIGRTMIN + 28] = "SIGRT28", 132 [LINUX_SIGRTMIN + 29] = "SIGRT29", 133 [LINUX_SIGRTMIN + 30] = "SIGRT30", 134 [LINUX_SIGRTMIN + 31] = "SIGRT31", 135 [LINUX_SIGRTMIN + 32] = "SIGRTMAX", 136 }; 137 _Static_assert(nitems(linux_signames) == LINUX_SIGRTMAX + 1, 138 "invalid entries count in linux_signames"); 139 140 void 141 sysdecode_linux_clockid(FILE *fp, clockid_t which) 142 { 143 const char *str; 144 clockid_t ci; 145 pid_t pid; 146 147 if (which >= 0) { 148 str = lookup_value(clockids, which); 149 if (str == NULL) 150 fprintf(fp, "UNKNOWN(%d)", which); 151 else 152 fputs(str, fp); 153 return; 154 } 155 if ((which & LINUX_CLOCKFD_MASK) == LINUX_CLOCKFD_MASK) { 156 fputs("INVALID PERTHREAD|CLOCKFD", fp); 157 goto pidp; 158 } 159 ci = LINUX_CPUCLOCK_WHICH(which); 160 if (LINUX_CPUCLOCK_PERTHREAD(which) == true) 161 fputs("THREAD|", fp); 162 else 163 fputs("PROCESS|", fp); 164 str = lookup_value(clockcpuids, ci); 165 if (str != NULL) 166 fputs(str, fp); 167 else { 168 if (ci == LINUX_CLOCKFD) 169 fputs("CLOCKFD", fp); 170 else 171 fprintf(fp, "UNKNOWN(%d)", which); 172 } 173 174 pidp: 175 pid = LINUX_CPUCLOCK_ID(which); 176 fprintf(fp, "(%d)", pid); 177 } 178 179 const char * 180 sysdecode_linux_signal(int sig) 181 { 182 183 if ((unsigned)sig < nitems(linux_signames)) 184 return (linux_signames[sig]); 185 return (NULL); 186 } 187 188 const char * 189 sysdecode_linux_sigprocmask_how(int how) 190 { 191 192 return (lookup_value(sigprocmaskhow, how)); 193 } 194 195 bool 196 sysdecode_linux_clock_flags(FILE *fp, int flags, int *rem) 197 { 198 199 return (print_mask_int(fp, clockflags, flags, rem)); 200 } 201 202 bool 203 sysdecode_linux_atflags(FILE *fp, int flag, int *rem) 204 { 205 206 return (print_mask_int(fp, atflags, flag, rem)); 207 } 208 209 bool 210 sysdecode_linux_open_flags(FILE *fp, int flags, int *rem) 211 { 212 bool printed; 213 int mode; 214 uintmax_t val; 215 216 mode = flags & LINUX_O_ACCMODE; 217 flags &= ~LINUX_O_ACCMODE; 218 switch (mode) { 219 case LINUX_O_RDONLY: 220 fputs("O_RDONLY", fp); 221 printed = true; 222 mode = 0; 223 break; 224 case LINUX_O_WRONLY: 225 fputs("O_WRONLY", fp); 226 printed = true; 227 mode = 0; 228 break; 229 case LINUX_O_RDWR: 230 fputs("O_RDWR", fp); 231 printed = true; 232 mode = 0; 233 break; 234 default: 235 printed = false; 236 } 237 val = (unsigned)flags; 238 print_mask_part(fp, openflags, &val, &printed); 239 if (rem != NULL) 240 *rem = val | mode; 241 return (printed); 242 } 243