Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl> |
| 3 | * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> |
| 4 | * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com> |
| 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. |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 28 | */ |
| 29 | |
Roland McGrath | 795edb1 | 2005-02-02 04:44:57 +0000 | [diff] [blame] | 30 | #ifdef HAVE_CONFIG_H |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 31 | # include "config.h" |
Roland McGrath | 795edb1 | 2005-02-02 04:44:57 +0000 | [diff] [blame] | 32 | #endif |
Roland McGrath | e6d3a29 | 2003-01-14 09:46:18 +0000 | [diff] [blame] | 33 | #ifdef _LARGEFILE64_SOURCE |
| 34 | /* This is the macro everything checks before using foo64 names. */ |
| 35 | # ifndef _LFS64_LARGEFILE |
| 36 | # define _LFS64_LARGEFILE 1 |
| 37 | # endif |
| 38 | #endif |
Dmitry V. Levin | 2690fad | 2013-05-07 08:03:41 +0000 | [diff] [blame] | 39 | |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 40 | #ifdef MIPS |
Mike Frysinger | 3883ab8 | 2013-05-07 10:50:20 -0400 | [diff] [blame] | 41 | # include <sgidefs.h> |
Dmitry V. Levin | 2690fad | 2013-05-07 08:03:41 +0000 | [diff] [blame] | 42 | # if _MIPS_SIM == _MIPS_SIM_ABI64 |
| 43 | # define LINUX_MIPSN64 |
| 44 | # elif _MIPS_SIM == _MIPS_SIM_NABI32 |
| 45 | # define LINUX_MIPSN32 |
| 46 | # elif _MIPS_SIM == _MIPS_SIM_ABI32 |
| 47 | # define LINUX_MIPSO32 |
| 48 | # else |
| 49 | # error Unsupported _MIPS_SIM |
| 50 | # endif |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 51 | #endif |
Dmitry V. Levin | 2690fad | 2013-05-07 08:03:41 +0000 | [diff] [blame] | 52 | |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 53 | #include <features.h> |
Denys Vlasenko | a6d91de | 2012-03-16 12:02:22 +0100 | [diff] [blame] | 54 | #ifdef HAVE_STDBOOL_H |
| 55 | # include <stdbool.h> |
| 56 | #endif |
| 57 | #include <stdint.h> |
| 58 | #include <inttypes.h> |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 59 | #include <sys/types.h> |
Denys Vlasenko | a6d91de | 2012-03-16 12:02:22 +0100 | [diff] [blame] | 60 | #ifdef STDC_HEADERS |
| 61 | # include <stddef.h> |
| 62 | #endif |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 63 | #include <unistd.h> |
| 64 | #include <stdlib.h> |
| 65 | #include <stdio.h> |
Denys Vlasenko | 5198ed4 | 2013-03-06 23:44:23 +0100 | [diff] [blame] | 66 | /* Open-coding isprint(ch) et al proved more efficient than calling |
| 67 | * generalized libc interface. We don't *want* to do non-ASCII anyway. |
| 68 | */ |
| 69 | /* #include <ctype.h> */ |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 70 | #include <string.h> |
Denys Vlasenko | a6d91de | 2012-03-16 12:02:22 +0100 | [diff] [blame] | 71 | #include <errno.h> |
| 72 | #include <signal.h> |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 73 | #include <time.h> |
| 74 | #include <sys/time.h> |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 75 | #include <sys/syscall.h> |
Roland McGrath | e6d3a29 | 2003-01-14 09:46:18 +0000 | [diff] [blame] | 76 | |
Denys Vlasenko | 2989814 | 2012-03-15 15:02:49 +0100 | [diff] [blame] | 77 | #ifndef HAVE_STRERROR |
| 78 | const char *strerror(int); |
| 79 | #endif |
Denys Vlasenko | 2989814 | 2012-03-15 15:02:49 +0100 | [diff] [blame] | 80 | #ifndef HAVE_STPCPY |
| 81 | /* Some libc have stpcpy, some don't. Sigh... |
| 82 | * Roll our private implementation... |
| 83 | */ |
| 84 | #undef stpcpy |
| 85 | #define stpcpy strace_stpcpy |
| 86 | extern char *stpcpy(char *dst, const char *src); |
| 87 | #endif |
| 88 | |
| 89 | #if !defined __GNUC__ |
| 90 | # define __attribute__(x) /*nothing*/ |
| 91 | #endif |
| 92 | |
Denys Vlasenko | 513e9c2 | 2012-03-21 14:39:22 +0100 | [diff] [blame] | 93 | #ifndef offsetof |
| 94 | # define offsetof(type, member) \ |
| 95 | (((char *) &(((type *) NULL)->member)) - ((char *) (type *) NULL)) |
| 96 | #endif |
| 97 | |
Denys Vlasenko | 2989814 | 2012-03-15 15:02:49 +0100 | [diff] [blame] | 98 | #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
| 99 | |
Mike Frysinger | d648f29 | 2013-05-01 23:35:30 -0400 | [diff] [blame] | 100 | /* macros */ |
| 101 | #ifndef MAX |
| 102 | # define MAX(a, b) (((a) > (b)) ? (a) : (b)) |
| 103 | #endif |
| 104 | #ifndef MIN |
| 105 | # define MIN(a, b) (((a) < (b)) ? (a) : (b)) |
| 106 | #endif |
| 107 | #define CLAMP(val, min, max) MIN(MAX(min, val), max) |
| 108 | |
Denys Vlasenko | e4cc7c5 | 2012-03-23 11:29:01 +0100 | [diff] [blame] | 109 | /* Glibc has an efficient macro for sigemptyset |
| 110 | * (it just does one or two assignments of 0 to internal vector of longs). |
| 111 | */ |
| 112 | #if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset) |
| 113 | # define sigemptyset __sigemptyset |
| 114 | #endif |
| 115 | |
Denys Vlasenko | d9560c1 | 2011-08-19 17:41:28 +0200 | [diff] [blame] | 116 | /* Configuration section */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 117 | #ifndef DEFAULT_STRLEN |
Denys Vlasenko | 041b3ee | 2011-08-18 12:48:56 +0200 | [diff] [blame] | 118 | /* default maximum # of bytes printed in `printstr', change with -s switch */ |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 119 | # define DEFAULT_STRLEN 32 |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 120 | #endif |
| 121 | #ifndef DEFAULT_ACOLUMN |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 122 | # define DEFAULT_ACOLUMN 40 /* default alignment column for results */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 123 | #endif |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 124 | /* |
| 125 | * Maximum number of args to a syscall. |
Denys Vlasenko | d9560c1 | 2011-08-19 17:41:28 +0200 | [diff] [blame] | 126 | * |
Denys Vlasenko | aa925db | 2012-02-25 15:19:02 +0100 | [diff] [blame] | 127 | * Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS! |
Dmitry V. Levin | 2690fad | 2013-05-07 08:03:41 +0000 | [diff] [blame] | 128 | * linux/<ARCH>/syscallent*.h: |
| 129 | * all have nargs <= 6 except mips o32 which has nargs <= 7. |
Denys Vlasenko | d9560c1 | 2011-08-19 17:41:28 +0200 | [diff] [blame] | 130 | */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 131 | #ifndef MAX_ARGS |
Dmitry V. Levin | 2690fad | 2013-05-07 08:03:41 +0000 | [diff] [blame] | 132 | # ifdef LINUX_MIPSO32 |
| 133 | # define MAX_ARGS 7 |
| 134 | # else |
| 135 | # define MAX_ARGS 6 |
| 136 | # endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 137 | #endif |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 138 | /* default sorting method for call profiling */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 139 | #ifndef DEFAULT_SORTBY |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 140 | # define DEFAULT_SORTBY "time" |
John Hughes | 5826589 | 2001-10-18 15:13:53 +0000 | [diff] [blame] | 141 | #endif |
Denys Vlasenko | d27809c | 2013-02-12 12:50:10 +0100 | [diff] [blame] | 142 | /* |
| 143 | * Experimental code using PTRACE_SEIZE can be enabled here. |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 144 | * This needs Linux kernel 3.4.x or later to work. |
| 145 | */ |
| 146 | #define USE_SEIZE 1 |
Denys Vlasenko | 05f3251 | 2013-02-26 12:00:34 +0100 | [diff] [blame] | 147 | /* To force NOMMU build, set to 1 */ |
Denys Vlasenko | 5c9d8f4 | 2013-02-19 15:30:12 +0100 | [diff] [blame] | 148 | #define NOMMU_SYSTEM 0 |
Denys Vlasenko | 76da831 | 2013-07-16 12:18:59 +0200 | [diff] [blame] | 149 | /* |
| 150 | * Set to 1 to use speed-optimized vfprintf implementation. |
| 151 | * It results in strace using about 5% less CPU in user space |
| 152 | * (compared to glibc version). |
| 153 | * But strace spends a lot of time in kernel space, |
| 154 | * so overall it does not appear to be a significant win. |
| 155 | * Thus disabled by default. |
| 156 | */ |
| 157 | #define USE_CUSTOM_PRINTF 0 |
Denys Vlasenko | 5c9d8f4 | 2013-02-19 15:30:12 +0100 | [diff] [blame] | 158 | |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 159 | #if (defined(SPARC) || defined(SPARC64) \ |
Dmitry V. Levin | 7d5696f | 2013-03-18 00:19:06 +0000 | [diff] [blame] | 160 | || defined(I386) || defined(X32) || defined(X86_64) \ |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 161 | || defined(ARM) || defined(AARCH64) \ |
| 162 | || defined(AVR32) \ |
Christian Svensson | 492f81f | 2013-02-14 13:26:27 +0100 | [diff] [blame] | 163 | || defined(OR1K) \ |
James Hogan | 5f999a8 | 2013-02-22 14:44:10 +0000 | [diff] [blame] | 164 | || defined(METAG) \ |
Dmitry V. Levin | 7d5696f | 2013-03-18 00:19:06 +0000 | [diff] [blame] | 165 | || defined(TILE) \ |
Chris Zankel | 8f636ed | 2013-03-25 10:22:07 -0700 | [diff] [blame] | 166 | || defined(XTENSA) \ |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 167 | ) && defined(__GLIBC__) |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 168 | # include <sys/ptrace.h> |
| 169 | #else |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 170 | /* Work around awkward prototype in ptrace.h. */ |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 171 | # define ptrace xptrace |
| 172 | # include <sys/ptrace.h> |
| 173 | # undef ptrace |
| 174 | # ifdef POWERPC |
| 175 | # define __KERNEL__ |
| 176 | # include <asm/ptrace.h> |
| 177 | # undef __KERNEL__ |
Denys Vlasenko | 77770bb | 2011-08-26 19:25:09 +0200 | [diff] [blame] | 178 | # endif |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 179 | extern long ptrace(int, int, char *, long); |
| 180 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 181 | |
Denys Vlasenko | 2550d48 | 2013-02-15 21:04:28 +0100 | [diff] [blame] | 182 | #if defined(TILE) |
| 183 | # include <asm/ptrace.h> /* struct pt_regs */ |
| 184 | #endif |
| 185 | |
Denys Vlasenko | 4793221 | 2013-06-30 23:53:49 +0200 | [diff] [blame] | 186 | #ifndef ERESTARTSYS |
| 187 | # define ERESTARTSYS 512 |
| 188 | #endif |
| 189 | #ifndef ERESTARTNOINTR |
| 190 | # define ERESTARTNOINTR 513 |
| 191 | #endif |
| 192 | #ifndef ERESTARTNOHAND |
| 193 | # define ERESTARTNOHAND 514 |
| 194 | #endif |
| 195 | #ifndef ERESTART_RESTARTBLOCK |
| 196 | # define ERESTART_RESTARTBLOCK 516 |
| 197 | #endif |
| 198 | |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 199 | #if !HAVE_DECL_PTRACE_SETOPTIONS |
| 200 | # define PTRACE_SETOPTIONS 0x4200 |
| 201 | #endif |
| 202 | #if !HAVE_DECL_PTRACE_GETEVENTMSG |
| 203 | # define PTRACE_GETEVENTMSG 0x4201 |
| 204 | #endif |
| 205 | #if !HAVE_DECL_PTRACE_GETSIGINFO |
| 206 | # define PTRACE_GETSIGINFO 0x4202 |
| 207 | #endif |
| 208 | |
| 209 | #if !HAVE_DECL_PTRACE_O_TRACESYSGOOD |
| 210 | # define PTRACE_O_TRACESYSGOOD 0x00000001 |
| 211 | #endif |
| 212 | #if !HAVE_DECL_PTRACE_O_TRACEFORK |
| 213 | # define PTRACE_O_TRACEFORK 0x00000002 |
| 214 | #endif |
| 215 | #if !HAVE_DECL_PTRACE_O_TRACEVFORK |
| 216 | # define PTRACE_O_TRACEVFORK 0x00000004 |
| 217 | #endif |
| 218 | #if !HAVE_DECL_PTRACE_O_TRACECLONE |
| 219 | # define PTRACE_O_TRACECLONE 0x00000008 |
| 220 | #endif |
| 221 | #if !HAVE_DECL_PTRACE_O_TRACEEXEC |
| 222 | # define PTRACE_O_TRACEEXEC 0x00000010 |
| 223 | #endif |
| 224 | #if !HAVE_DECL_PTRACE_O_TRACEEXIT |
| 225 | # define PTRACE_O_TRACEEXIT 0x00000040 |
| 226 | #endif |
| 227 | |
| 228 | #if !HAVE_DECL_PTRACE_EVENT_FORK |
| 229 | # define PTRACE_EVENT_FORK 1 |
| 230 | #endif |
| 231 | #if !HAVE_DECL_PTRACE_EVENT_VFORK |
| 232 | # define PTRACE_EVENT_VFORK 2 |
| 233 | #endif |
| 234 | #if !HAVE_DECL_PTRACE_EVENT_CLONE |
| 235 | # define PTRACE_EVENT_CLONE 3 |
| 236 | #endif |
| 237 | #if !HAVE_DECL_PTRACE_EVENT_EXEC |
| 238 | # define PTRACE_EVENT_EXEC 4 |
| 239 | #endif |
| 240 | #if !HAVE_DECL_PTRACE_EVENT_VFORK_DONE |
| 241 | # define PTRACE_EVENT_VFORK_DONE 5 |
| 242 | #endif |
| 243 | #if !HAVE_DECL_PTRACE_EVENT_EXIT |
| 244 | # define PTRACE_EVENT_EXIT 6 |
| 245 | #endif |
| 246 | |
Wichert Akkerman | b859bea | 1999-04-18 22:50:50 +0000 | [diff] [blame] | 247 | #if !defined(__GLIBC__) |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 248 | # define PTRACE_PEEKUSER PTRACE_PEEKUSR |
| 249 | # define PTRACE_POKEUSER PTRACE_POKEUSR |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 250 | #endif |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 251 | |
Denys Vlasenko | f1669e7 | 2013-06-18 18:09:39 +0200 | [diff] [blame] | 252 | #undef PTRACE_SEIZE |
| 253 | #define PTRACE_SEIZE 0x4206 |
| 254 | #undef PTRACE_INTERRUPT |
| 255 | #define PTRACE_INTERRUPT 0x4207 |
| 256 | #undef PTRACE_LISTEN |
| 257 | #define PTRACE_LISTEN 0x4208 |
| 258 | #undef PTRACE_EVENT_STOP |
| 259 | #define PTRACE_EVENT_STOP 128 |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 260 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 261 | #ifdef ALPHA |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 262 | # define REG_R0 0 |
| 263 | # define REG_A0 16 |
| 264 | # define REG_A3 19 |
| 265 | # define REG_FP 30 |
| 266 | # define REG_PC 64 |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 267 | #endif /* ALPHA */ |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 268 | #ifdef MIPS |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 269 | # define REG_V0 2 |
| 270 | # define REG_A0 4 |
| 271 | # define REG_A3 7 |
| 272 | # define REG_SP 29 |
| 273 | # define REG_EPC 64 |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 274 | #endif /* MIPS */ |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 275 | #ifdef HPPA |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 276 | # define PT_GR20 (20*4) |
| 277 | # define PT_GR26 (26*4) |
| 278 | # define PT_GR28 (28*4) |
| 279 | # define PT_IAOQ0 (106*4) |
| 280 | # define PT_IAOQ1 (107*4) |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 281 | #endif /* HPPA */ |
Roland McGrath | f5a4777 | 2003-06-26 22:40:42 +0000 | [diff] [blame] | 282 | #ifdef SH64 |
| 283 | /* SH64 Linux - this code assumes the following kernel API for system calls: |
Roland McGrath | e1e584b | 2003-06-02 19:18:58 +0000 | [diff] [blame] | 284 | PC Offset 0 |
| 285 | System Call Offset 16 (actually, (syscall no.) | (0x1n << 16), |
| 286 | where n = no. of parameters. |
| 287 | Other regs Offset 24+ |
| 288 | |
| 289 | On entry: R2-7 = parameters 1-6 (as many as necessary) |
| 290 | On return: R9 = result. */ |
| 291 | |
| 292 | /* Offset for peeks of registers */ |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 293 | # define REG_OFFSET (24) |
| 294 | # define REG_GENERAL(x) (8*(x)+REG_OFFSET) |
| 295 | # define REG_PC (0*8) |
| 296 | # define REG_SYSCALL (2*8) |
Roland McGrath | f5a4777 | 2003-06-26 22:40:42 +0000 | [diff] [blame] | 297 | #endif /* SH64 */ |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 298 | #ifdef AARCH64 |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 299 | struct arm_pt_regs { |
Denys Vlasenko | 28ac68f | 2013-02-08 12:38:51 +0100 | [diff] [blame] | 300 | int uregs[18]; |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 301 | }; |
Denys Vlasenko | 28ac68f | 2013-02-08 12:38:51 +0100 | [diff] [blame] | 302 | # define ARM_cpsr uregs[16] |
| 303 | # define ARM_pc uregs[15] |
| 304 | # define ARM_lr uregs[14] |
| 305 | # define ARM_sp uregs[13] |
| 306 | # define ARM_ip uregs[12] |
| 307 | # define ARM_fp uregs[11] |
| 308 | # define ARM_r10 uregs[10] |
| 309 | # define ARM_r9 uregs[9] |
| 310 | # define ARM_r8 uregs[8] |
| 311 | # define ARM_r7 uregs[7] |
| 312 | # define ARM_r6 uregs[6] |
| 313 | # define ARM_r5 uregs[5] |
| 314 | # define ARM_r4 uregs[4] |
| 315 | # define ARM_r3 uregs[3] |
| 316 | # define ARM_r2 uregs[2] |
| 317 | # define ARM_r1 uregs[1] |
| 318 | # define ARM_r0 uregs[0] |
| 319 | # define ARM_ORIG_r0 uregs[17] |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 320 | #endif /* AARCH64 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 321 | |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 322 | #if defined(SPARC) || defined(SPARC64) |
Mike Frysinger | 8566c50 | 2009-10-12 11:05:14 -0400 | [diff] [blame] | 323 | /* Indexes into the pt_regs.u_reg[] array -- UREG_XX from kernel are all off |
| 324 | * by 1 and use Ix instead of Ox. These work for both 32 and 64 bit Linux. */ |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 325 | # define U_REG_G1 0 |
| 326 | # define U_REG_O0 7 |
| 327 | # define U_REG_O1 8 |
| 328 | # define PERSONALITY0_WORDSIZE 4 |
| 329 | # define PERSONALITY1_WORDSIZE 4 |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 330 | # if defined(SPARC64) |
| 331 | # include <asm/psrcompat.h> |
| 332 | # define SUPPORTED_PERSONALITIES 3 |
| 333 | # define PERSONALITY2_WORDSIZE 8 |
| 334 | # else |
| 335 | # include <asm/psr.h> |
| 336 | # define SUPPORTED_PERSONALITIES 2 |
| 337 | # endif /* SPARC64 */ |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 338 | #endif /* SPARC[64] */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 339 | |
Michal Ludvig | 0e03550 | 2002-09-23 15:41:01 +0000 | [diff] [blame] | 340 | #ifdef X86_64 |
H.J. Lu | 35be581 | 2012-04-16 13:00:01 +0200 | [diff] [blame] | 341 | # define SUPPORTED_PERSONALITIES 3 |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 342 | # define PERSONALITY0_WORDSIZE 8 |
| 343 | # define PERSONALITY1_WORDSIZE 4 |
H.J. Lu | 35be581 | 2012-04-16 13:00:01 +0200 | [diff] [blame] | 344 | # define PERSONALITY2_WORDSIZE 4 |
Roland McGrath | ee9d435 | 2002-12-18 04:16:10 +0000 | [diff] [blame] | 345 | #endif |
| 346 | |
H.J. Lu | 085e428 | 2012-04-17 11:05:04 -0700 | [diff] [blame] | 347 | #ifdef X32 |
H.J. Lu | 085e428 | 2012-04-17 11:05:04 -0700 | [diff] [blame] | 348 | # define SUPPORTED_PERSONALITIES 2 |
| 349 | # define PERSONALITY0_WORDSIZE 4 |
| 350 | # define PERSONALITY1_WORDSIZE 4 |
| 351 | #endif |
| 352 | |
Roland McGrath | 5670331 | 2008-05-20 01:35:55 +0000 | [diff] [blame] | 353 | #ifdef ARM |
Denys Vlasenko | 7270de5 | 2013-02-21 15:46:34 +0100 | [diff] [blame] | 354 | /* one personality */ |
Roland McGrath | 5670331 | 2008-05-20 01:35:55 +0000 | [diff] [blame] | 355 | #endif |
| 356 | |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 357 | #ifdef AARCH64 |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 358 | /* The existing ARM personality, then AArch64 */ |
| 359 | # define SUPPORTED_PERSONALITIES 2 |
| 360 | # define PERSONALITY0_WORDSIZE 4 |
| 361 | # define PERSONALITY1_WORDSIZE 8 |
Steve McIntyre | 890a5ca | 2012-11-10 11:24:48 +0000 | [diff] [blame] | 362 | # define DEFAULT_PERSONALITY 1 |
| 363 | #endif |
| 364 | |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 365 | #ifdef POWERPC64 |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 366 | # define SUPPORTED_PERSONALITIES 2 |
| 367 | # define PERSONALITY0_WORDSIZE 8 |
| 368 | # define PERSONALITY1_WORDSIZE 4 |
Andreas Schwab | d69fa49 | 2010-07-12 21:39:57 +0200 | [diff] [blame] | 369 | #endif |
| 370 | |
Chris Metcalf | 0b99a8a | 2013-02-05 17:48:33 +0100 | [diff] [blame] | 371 | #ifdef TILE |
Chris Metcalf | 0b99a8a | 2013-02-05 17:48:33 +0100 | [diff] [blame] | 372 | # define SUPPORTED_PERSONALITIES 2 |
| 373 | # define PERSONALITY0_WORDSIZE 8 |
| 374 | # define PERSONALITY1_WORDSIZE 4 |
| 375 | # ifdef __tilepro__ |
Chris Metcalf | 0b99a8a | 2013-02-05 17:48:33 +0100 | [diff] [blame] | 376 | # define DEFAULT_PERSONALITY 1 |
| 377 | # endif |
| 378 | #endif |
| 379 | |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 380 | #ifndef SUPPORTED_PERSONALITIES |
| 381 | # define SUPPORTED_PERSONALITIES 1 |
| 382 | #endif |
| 383 | #ifndef DEFAULT_PERSONALITY |
| 384 | # define DEFAULT_PERSONALITY 0 |
| 385 | #endif |
Denys Vlasenko | 9fd4f96 | 2012-03-19 09:36:42 +0100 | [diff] [blame] | 386 | #ifndef PERSONALITY0_WORDSIZE |
Denys Vlasenko | c52826c | 2012-05-15 14:28:56 +0200 | [diff] [blame] | 387 | # define PERSONALITY0_WORDSIZE (int)(sizeof(long)) |
Denys Vlasenko | 9fd4f96 | 2012-03-19 09:36:42 +0100 | [diff] [blame] | 388 | #endif |
| 389 | |
Denys Vlasenko | b51f364 | 2013-07-16 12:06:25 +0200 | [diff] [blame] | 390 | #if defined(I386) || defined(X86_64) |
| 391 | extern uint32_t *const i386_esp_ptr; |
Denys Vlasenko | 4bfb198 | 2013-02-20 12:38:14 +0100 | [diff] [blame] | 392 | #elif defined(IA64) |
Denys Vlasenko | c09646a | 2013-07-01 12:28:17 +0200 | [diff] [blame] | 393 | extern bool ia64_ia32mode; |
Denys Vlasenko | 4bfb198 | 2013-02-20 12:38:14 +0100 | [diff] [blame] | 394 | #elif defined(SPARC) || defined(SPARC64) |
Denys Vlasenko | 48e4c1b | 2013-02-16 08:23:40 +0100 | [diff] [blame] | 395 | extern struct pt_regs sparc_regs; |
Denys Vlasenko | 4bfb198 | 2013-02-20 12:38:14 +0100 | [diff] [blame] | 396 | #elif defined(ARM) |
Denys Vlasenko | 401374e | 2013-02-06 18:24:39 +0100 | [diff] [blame] | 397 | extern struct pt_regs arm_regs; |
Denys Vlasenko | 4bfb198 | 2013-02-20 12:38:14 +0100 | [diff] [blame] | 398 | #elif defined(TILE) |
Chris Metcalf | 0b99a8a | 2013-02-05 17:48:33 +0100 | [diff] [blame] | 399 | extern struct pt_regs tile_regs; |
Anton Blanchard | ce6e33b | 2013-06-26 15:53:33 +0200 | [diff] [blame] | 400 | #elif defined(POWERPC) |
| 401 | extern struct pt_regs ppc_regs; |
Chris Metcalf | 0b99a8a | 2013-02-05 17:48:33 +0100 | [diff] [blame] | 402 | #endif |
Denys Vlasenko | b11322f | 2012-01-10 16:40:35 +0100 | [diff] [blame] | 403 | |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 404 | typedef struct sysent { |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 405 | unsigned nargs; |
| 406 | int sys_flags; |
| 407 | int (*sys_func)(); |
| 408 | const char *sys_name; |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 409 | } struct_sysent; |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 410 | |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 411 | typedef struct ioctlent { |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 412 | const char *doth; |
| 413 | const char *symbol; |
| 414 | unsigned long code; |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 415 | } struct_ioctlent; |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 416 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 417 | /* Trace Control Block */ |
| 418 | struct tcb { |
Denys Vlasenko | d9ec141 | 2011-08-20 01:39:05 +0200 | [diff] [blame] | 419 | int flags; /* See below for TCB_ values */ |
Denys Vlasenko | fadbf66 | 2013-06-26 14:14:29 +0200 | [diff] [blame] | 420 | int pid; /* If 0, this tcb is free */ |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 421 | int qual_flg; /* qual_flags[scno] or DEFAULT_QUAL_FLAGS + RAW */ |
Denys Vlasenko | 92d443c | 2011-08-25 00:25:08 +0200 | [diff] [blame] | 422 | int u_error; /* Error code */ |
| 423 | long scno; /* System call number */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 424 | long u_arg[MAX_ARGS]; /* System call arguments */ |
H.J. Lu | 35be581 | 2012-04-16 13:00:01 +0200 | [diff] [blame] | 425 | #if defined(LINUX_MIPSN32) || defined(X32) |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 426 | long long ext_arg[MAX_ARGS]; |
H.J. Lu | dd0130b | 2012-04-16 12:16:45 +0200 | [diff] [blame] | 427 | long long u_lrval; /* long long return value */ |
| 428 | #endif |
Denys Vlasenko | 9472a27 | 2013-02-12 11:43:46 +0100 | [diff] [blame] | 429 | long u_rval; /* Return value */ |
Dmitry V. Levin | a5a839a | 2011-12-23 00:50:49 +0000 | [diff] [blame] | 430 | #if SUPPORTED_PERSONALITIES > 1 |
| 431 | int currpers; /* Personality at the time of scno update */ |
| 432 | #endif |
Andreas Schwab | ccdff48 | 2009-10-27 16:27:13 +0100 | [diff] [blame] | 433 | int curcol; /* Output column for this process */ |
Denys Vlasenko | 92d443c | 2011-08-25 00:25:08 +0200 | [diff] [blame] | 434 | FILE *outf; /* Output file for this process */ |
Wichert Akkerman | 43a7482 | 2000-06-27 17:33:32 +0000 | [diff] [blame] | 435 | const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */ |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 436 | const struct_sysent *s_ent; /* sysent[scno] or dummy struct for bad scno */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 437 | struct timeval stime; /* System time usage as of last process wait */ |
| 438 | struct timeval dtime; /* Delta for system time usage */ |
| 439 | struct timeval etime; /* Syscall entry time */ |
Denys Vlasenko | a61a72e | 2012-03-17 12:41:27 +0100 | [diff] [blame] | 440 | /* Support for tracing forked processes: */ |
| 441 | long inst[2]; /* Saved clone args (badly named) */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 442 | }; |
| 443 | |
| 444 | /* TCB flags */ |
Denys Vlasenko | 68269aa | 2012-03-15 13:02:31 +0100 | [diff] [blame] | 445 | /* We have attached to this process, but did not see it stopping yet */ |
Denys Vlasenko | fadbf66 | 2013-06-26 14:14:29 +0200 | [diff] [blame] | 446 | #define TCB_STARTUP 0x01 |
| 447 | #define TCB_IGNORE_ONE_SIGSTOP 0x02 /* Next SIGSTOP is to be ignored */ |
Denys Vlasenko | b88f961 | 2011-08-21 18:03:23 +0200 | [diff] [blame] | 448 | /* |
| 449 | * Are we in system call entry or in syscall exit? |
| 450 | * |
| 451 | * This bit is set after all syscall entry processing is done. |
| 452 | * Therefore, this bit will be set when next ptrace stop occurs, |
| 453 | * which should be syscall exit stop. Other stops which are possible |
| 454 | * directly after syscall entry (death, ptrace event stop) |
| 455 | * are simpler and handled without calling trace_syscall(), therefore |
| 456 | * the places where TCB_INSYSCALL can be set but we aren't in syscall stop |
| 457 | * are limited to trace(), this condition is never observed in trace_syscall() |
| 458 | * and below. |
| 459 | * The bit is cleared after all syscall exit processing is done. |
| 460 | * User-generated SIGTRAPs and post-execve SIGTRAP make it necessary |
| 461 | * to be very careful and NOT set TCB_INSYSCALL bit when they are encountered. |
| 462 | * TCB_WAITEXECVE bit is used for this purpose (see below). |
| 463 | * |
| 464 | * Use entering(tcp) / exiting(tcp) to check this bit to make code more readable. |
| 465 | */ |
Denys Vlasenko | fadbf66 | 2013-06-26 14:14:29 +0200 | [diff] [blame] | 466 | #define TCB_INSYSCALL 0x04 |
| 467 | #define TCB_ATTACHED 0x08 /* We attached to it already */ |
| 468 | #define TCB_BPTSET 0x10 /* "Breakpoint" set after fork(2) */ |
| 469 | #define TCB_REPRINT 0x20 /* We should reprint this syscall on exit */ |
| 470 | #define TCB_FILTERED 0x40 /* This system call has been filtered out */ |
| 471 | /* |
| 472 | * x86 does not need TCB_WAITEXECVE. |
Denys Vlasenko | d27809c | 2013-02-12 12:50:10 +0100 | [diff] [blame] | 473 | * It can detect post-execve SIGTRAP by looking at eax/rax. |
| 474 | * See "not a syscall entry (eax = %ld)\n" message. |
| 475 | * |
| 476 | * Note! On new kernels (about 2.5.46+), we use PTRACE_O_TRACEEXEC, which |
| 477 | * suppresses post-execve SIGTRAP. If you are adding a new arch which is |
| 478 | * only supported by newer kernels, you most likely don't need to define |
| 479 | * TCB_WAITEXECVE! |
Denys Vlasenko | bc161ec | 2009-01-02 18:02:45 +0000 | [diff] [blame] | 480 | */ |
Denys Vlasenko | d27809c | 2013-02-12 12:50:10 +0100 | [diff] [blame] | 481 | #if defined(ALPHA) \ |
| 482 | || defined(SPARC) || defined(SPARC64) \ |
| 483 | || defined(POWERPC) \ |
| 484 | || defined(IA64) \ |
| 485 | || defined(HPPA) \ |
| 486 | || defined(SH) || defined(SH64) \ |
| 487 | || defined(S390) || defined(S390X) \ |
Denys Vlasenko | bf357fc | 2013-02-12 13:06:51 +0100 | [diff] [blame] | 488 | || defined(ARM) \ |
Denys Vlasenko | d27809c | 2013-02-12 12:50:10 +0100 | [diff] [blame] | 489 | || defined(MIPS) |
Denys Vlasenko | b88f961 | 2011-08-21 18:03:23 +0200 | [diff] [blame] | 490 | /* This tracee has entered into execve syscall. Expect post-execve SIGTRAP |
| 491 | * to happen. (When it is detected, tracee is continued and this bit is cleared.) |
| 492 | */ |
Denys Vlasenko | fadbf66 | 2013-06-26 14:14:29 +0200 | [diff] [blame] | 493 | # define TCB_WAITEXECVE 0x80 |
Denys Vlasenko | 329655a | 2012-02-25 02:42:32 +0100 | [diff] [blame] | 494 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 495 | |
| 496 | /* qualifier flags */ |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 497 | #define QUAL_TRACE 0x001 /* this system call should be traced */ |
| 498 | #define QUAL_ABBREV 0x002 /* abbreviate the structures of this syscall */ |
| 499 | #define QUAL_VERBOSE 0x004 /* decode the structures of this syscall */ |
| 500 | #define QUAL_RAW 0x008 /* print all args in hex for this syscall */ |
| 501 | #define QUAL_SIGNAL 0x010 /* report events with this signal */ |
Denys Vlasenko | c1540fe | 2013-02-21 16:17:08 +0100 | [diff] [blame] | 502 | #define QUAL_READ 0x020 /* dump data read on this file descriptor */ |
| 503 | #define QUAL_WRITE 0x040 /* dump data written to this file descriptor */ |
Denys Vlasenko | a585c9d | 2013-02-21 16:15:43 +0100 | [diff] [blame] | 504 | typedef uint8_t qualbits_t; |
Denys Vlasenko | c1540fe | 2013-02-21 16:17:08 +0100 | [diff] [blame] | 505 | #define UNDEFINED_SCNO 0x100 /* Used only in tcp->qual_flg */ |
Denys Vlasenko | 74ec14f | 2013-02-21 16:13:47 +0100 | [diff] [blame] | 506 | |
| 507 | #define DEFAULT_QUAL_FLAGS (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 508 | |
| 509 | #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL)) |
| 510 | #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL) |
| 511 | #define syserror(tcp) ((tcp)->u_error != 0) |
Denys Vlasenko | 40d63b9 | 2013-02-22 13:23:38 +0100 | [diff] [blame] | 512 | #define verbose(tcp) ((tcp)->qual_flg & QUAL_VERBOSE) |
| 513 | #define abbrev(tcp) ((tcp)->qual_flg & QUAL_ABBREV) |
Grant Edwards | 8a08277 | 2011-04-07 20:25:40 +0000 | [diff] [blame] | 514 | #define filtered(tcp) ((tcp)->flags & TCB_FILTERED) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 515 | |
| 516 | struct xlat { |
| 517 | int val; |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 518 | const char *str; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 519 | }; |
| 520 | |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 521 | extern const struct xlat open_mode_flags[]; |
| 522 | extern const struct xlat addrfams[]; |
| 523 | extern const struct xlat struct_user_offsets[]; |
| 524 | extern const struct xlat open_access_modes[]; |
Denys Vlasenko | 86738a2 | 2013-02-17 14:31:55 +0100 | [diff] [blame] | 525 | extern const struct xlat whence_codes[]; |
Denys Vlasenko | f535b54 | 2009-01-13 18:30:55 +0000 | [diff] [blame] | 526 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 527 | /* Format of syscall return values */ |
| 528 | #define RVAL_DECIMAL 000 /* decimal format */ |
| 529 | #define RVAL_HEX 001 /* hex format */ |
| 530 | #define RVAL_OCTAL 002 /* octal format */ |
| 531 | #define RVAL_UDECIMAL 003 /* unsigned decimal format */ |
H.J. Lu | dd0130b | 2012-04-16 12:16:45 +0200 | [diff] [blame] | 532 | #if defined(LINUX_MIPSN32) || defined(X32) |
| 533 | # if 0 /* unused so far */ |
| 534 | # define RVAL_LDECIMAL 004 /* long decimal format */ |
| 535 | # define RVAL_LHEX 005 /* long hex format */ |
| 536 | # define RVAL_LOCTAL 006 /* long octal format */ |
| 537 | # endif |
| 538 | # define RVAL_LUDECIMAL 007 /* long unsigned decimal format */ |
| 539 | #endif |
| 540 | #define RVAL_MASK 007 /* mask for these values */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 541 | |
| 542 | #define RVAL_STR 010 /* Print `auxstr' field after return val */ |
| 543 | #define RVAL_NONE 020 /* Print nothing */ |
| 544 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 545 | #define TRACE_FILE 001 /* Trace file-related syscalls. */ |
| 546 | #define TRACE_IPC 002 /* Trace IPC-related syscalls. */ |
| 547 | #define TRACE_NETWORK 004 /* Trace network-related syscalls. */ |
| 548 | #define TRACE_PROCESS 010 /* Trace process-related syscalls. */ |
| 549 | #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */ |
Roland McGrath | 2fe7b13 | 2005-07-05 03:25:35 +0000 | [diff] [blame] | 550 | #define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */ |
Namhyung Kim | 9679296 | 2012-10-24 11:41:57 +0900 | [diff] [blame] | 551 | #define TRACE_MEMORY 0100 /* Trace memory mapping-related syscalls. */ |
| 552 | #define SYSCALL_NEVER_FAILS 0200 /* Syscall is always successful. */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 553 | |
Dmitry V. Levin | e3a7ef5 | 2010-03-28 19:24:54 +0000 | [diff] [blame] | 554 | typedef enum { |
| 555 | CFLAG_NONE = 0, |
| 556 | CFLAG_ONLY_STATS, |
| 557 | CFLAG_BOTH |
| 558 | } cflag_t; |
Dmitry V. Levin | e3a7ef5 | 2010-03-28 19:24:54 +0000 | [diff] [blame] | 559 | extern cflag_t cflag; |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 560 | extern bool debug_flag; |
| 561 | extern bool Tflag; |
Anton Blanchard | a34dead | 2013-07-12 12:22:06 +0200 | [diff] [blame] | 562 | extern bool iflag; |
Daniel P. Berrange | 01997cf | 2013-05-13 11:30:55 +0100 | [diff] [blame] | 563 | extern unsigned int qflag; |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 564 | extern bool not_failing_only; |
| 565 | extern bool show_fd_path; |
Denys Vlasenko | 2a3d275 | 2013-05-14 16:07:46 +0200 | [diff] [blame] | 566 | extern bool hide_log_until_execve; |
Denys Vlasenko | 38cfe7c | 2013-03-05 16:01:53 +0100 | [diff] [blame] | 567 | /* are we filtering traces based on paths? */ |
| 568 | extern const char **paths_selected; |
| 569 | #define tracing_paths (paths_selected != NULL) |
Denys Vlasenko | 8d4ca0c | 2013-02-06 13:18:42 +0100 | [diff] [blame] | 570 | extern bool need_fork_exec_workarounds; |
Denys Vlasenko | eec8d5d | 2013-02-14 03:29:48 +0100 | [diff] [blame] | 571 | extern unsigned xflag; |
| 572 | extern unsigned followfork; |
| 573 | extern unsigned ptrace_setoptions; |
| 574 | extern unsigned max_strlen; |
| 575 | extern unsigned os_release; |
| 576 | #undef KERNEL_VERSION |
| 577 | #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) |
Denys Vlasenko | a50d2a8 | 2012-03-15 12:49:52 +0100 | [diff] [blame] | 578 | |
Dmitry V. Levin | a7945a3 | 2006-12-13 17:10:11 +0000 | [diff] [blame] | 579 | enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 }; |
| 580 | |
Denys Vlasenko | 7542276 | 2011-05-27 14:36:01 +0200 | [diff] [blame] | 581 | void error_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2))); |
| 582 | void perror_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2))); |
| 583 | void error_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2))); |
| 584 | void perror_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2))); |
Denys Vlasenko | 1d46ba5 | 2011-08-31 14:00:02 +0200 | [diff] [blame] | 585 | void die_out_of_memory(void) __attribute__ ((noreturn)); |
Denys Vlasenko | 7542276 | 2011-05-27 14:36:01 +0200 | [diff] [blame] | 586 | |
Denys Vlasenko | 76da831 | 2013-07-16 12:18:59 +0200 | [diff] [blame] | 587 | #if USE_CUSTOM_PRINTF |
Denys Vlasenko | 6e4f3c1 | 2012-04-16 18:22:19 +0200 | [diff] [blame] | 588 | /* |
Denys Vlasenko | 6e4f3c1 | 2012-04-16 18:22:19 +0200 | [diff] [blame] | 589 | * See comment in vsprintf.c for allowed formats. |
| 590 | * Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u. |
Denys Vlasenko | 6e4f3c1 | 2012-04-16 18:22:19 +0200 | [diff] [blame] | 591 | */ |
| 592 | int strace_vfprintf(FILE *fp, const char *fmt, va_list args); |
| 593 | #else |
| 594 | # define strace_vfprintf vfprintf |
| 595 | #endif |
| 596 | |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 597 | extern void set_sortby(const char *); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 598 | extern void set_overhead(int); |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 599 | extern void qualify(const char *); |
Denys Vlasenko | 5a2483b | 2013-07-01 12:49:14 +0200 | [diff] [blame] | 600 | extern void print_pc(struct tcb *); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 601 | extern int trace_syscall(struct tcb *); |
Denys Vlasenko | c95a88f | 2011-08-21 17:47:40 +0200 | [diff] [blame] | 602 | extern void count_syscall(struct tcb *, struct timeval *); |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 603 | extern void call_summary(FILE *); |
| 604 | |
Denys Vlasenko | ce7d953 | 2013-02-05 16:36:13 +0100 | [diff] [blame] | 605 | #if defined(AVR32) \ |
| 606 | || defined(I386) \ |
| 607 | || defined(X86_64) || defined(X32) \ |
| 608 | || defined(AARCH64) \ |
| 609 | || defined(ARM) \ |
Chris Metcalf | af8dc6b | 2013-02-05 13:02:42 -0500 | [diff] [blame] | 610 | || defined(SPARC) || defined(SPARC64) \ |
Christian Svensson | 492f81f | 2013-02-14 13:26:27 +0100 | [diff] [blame] | 611 | || defined(TILE) \ |
James Hogan | 5f999a8 | 2013-02-22 14:44:10 +0000 | [diff] [blame] | 612 | || defined(OR1K) \ |
Anton Blanchard | ce6e33b | 2013-06-26 15:53:33 +0200 | [diff] [blame] | 613 | || defined(METAG) \ |
| 614 | || defined(POWERPC) |
Denys Vlasenko | ce7d953 | 2013-02-05 16:36:13 +0100 | [diff] [blame] | 615 | extern long get_regs_error; |
| 616 | # define clear_regs() (get_regs_error = -1) |
| 617 | extern void get_regs(pid_t pid); |
| 618 | #else |
| 619 | # define get_regs_error 0 |
| 620 | # define clear_regs() ((void)0) |
| 621 | # define get_regs(pid) ((void)0) |
| 622 | #endif |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 623 | extern int umoven(struct tcb *, long, int, char *); |
| 624 | #define umove(pid, addr, objp) \ |
| 625 | umoven((pid), (addr), sizeof(*(objp)), (char *) (objp)) |
| 626 | extern int umovestr(struct tcb *, long, int, char *); |
Denys Vlasenko | 752e5a0 | 2013-06-28 14:35:47 +0200 | [diff] [blame] | 627 | extern int upeek(int pid, long, long *); |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 628 | #if defined(SPARC) || defined(SPARC64) || defined(IA64) || defined(SH) |
| 629 | extern long getrval2(struct tcb *); |
| 630 | #endif |
| 631 | /* |
| 632 | * On Linux, "setbpt" is a misnomer: we don't set a breakpoint |
| 633 | * (IOW: no poking in user's text segment), |
| 634 | * instead we change fork/vfork/clone into clone(CLONE_PTRACE). |
| 635 | * On newer kernels, we use PTRACE_O_TRACECLONE/TRACE[V]FORK instead. |
| 636 | */ |
| 637 | extern int setbpt(struct tcb *); |
| 638 | extern int clearbpt(struct tcb *); |
| 639 | |
| 640 | extern const char *signame(int); |
Denys Vlasenko | 7239dbc | 2013-03-05 15:46:34 +0100 | [diff] [blame] | 641 | extern void pathtrace_select(const char *); |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 642 | extern int pathtrace_match(struct tcb *); |
Denys Vlasenko | 61ad0a4 | 2013-03-06 18:24:34 +0100 | [diff] [blame] | 643 | extern int getfdpath(struct tcb *, int, char *, unsigned); |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 644 | |
| 645 | extern const char *xlookup(const struct xlat *, int); |
| 646 | |
Dmitry V. Levin | ccee169 | 2012-03-25 21:49:48 +0000 | [diff] [blame] | 647 | extern int string_to_uint(const char *str); |
Denys Vlasenko | b5d43b8 | 2012-04-28 14:58:35 +0200 | [diff] [blame] | 648 | extern int string_quote(const char *, char *, long, int); |
Dmitry V. Levin | ccee169 | 2012-03-25 21:49:48 +0000 | [diff] [blame] | 649 | |
Denys Vlasenko | c9d0fc0 | 2013-02-17 22:41:33 +0100 | [diff] [blame] | 650 | /* a refers to the lower numbered u_arg, |
| 651 | * b refers to the higher numbered u_arg |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 652 | */ |
Denys Vlasenko | c9d0fc0 | 2013-02-17 22:41:33 +0100 | [diff] [blame] | 653 | #if HAVE_LITTLE_ENDIAN_LONG_LONG |
| 654 | # define LONG_LONG(a,b) \ |
| 655 | ((long long)((unsigned long long)(unsigned)(a) | ((unsigned long long)(b)<<32))) |
| 656 | #else |
| 657 | # define LONG_LONG(a,b) \ |
| 658 | ((long long)((unsigned long long)(unsigned)(b) | ((unsigned long long)(a)<<32))) |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 659 | #endif |
Denys Vlasenko | c9d0fc0 | 2013-02-17 22:41:33 +0100 | [diff] [blame] | 660 | extern int printllval(struct tcb *, const char *, int); |
| 661 | |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 662 | extern void printxval(const struct xlat *, int, const char *); |
| 663 | extern int printargs(struct tcb *); |
Denys Vlasenko | 72879c6 | 2012-02-27 14:18:02 +0100 | [diff] [blame] | 664 | extern int printargs_lu(struct tcb *); |
| 665 | extern int printargs_ld(struct tcb *); |
Denys Vlasenko | 4924dbd | 2011-08-19 18:06:46 +0200 | [diff] [blame] | 666 | extern void addflags(const struct xlat *, int); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 667 | extern int printflags(const struct xlat *, int, const char *); |
| 668 | extern const char *sprintflags(const char *, const struct xlat *, int); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 669 | extern void dumpiov(struct tcb *, int, long); |
| 670 | extern void dumpstr(struct tcb *, long, int); |
Denys Vlasenko | b5d43b8 | 2012-04-28 14:58:35 +0200 | [diff] [blame] | 671 | extern void printstr(struct tcb *, long, long); |
Dmitry V. Levin | 30145dd | 2010-09-06 22:08:24 +0000 | [diff] [blame] | 672 | extern void printnum(struct tcb *, long, const char *); |
| 673 | extern void printnum_int(struct tcb *, long, const char *); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 674 | extern void printpath(struct tcb *, long); |
| 675 | extern void printpathn(struct tcb *, long, int); |
Denys Vlasenko | a1d541e | 2012-01-20 11:04:04 +0100 | [diff] [blame] | 676 | #define TIMESPEC_TEXT_BUFSIZE (sizeof(long)*3 * 2 + sizeof("{%u, %u}")) |
| 677 | #define TIMEVAL_TEXT_BUFSIZE TIMESPEC_TEXT_BUFSIZE |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 678 | extern void printtv_bitness(struct tcb *, long, enum bitness_t, int); |
Denys Vlasenko | d63b0d5 | 2012-03-23 11:26:36 +0100 | [diff] [blame] | 679 | #define printtv(tcp, addr) \ |
| 680 | printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0) |
| 681 | #define printtv_special(tcp, addr) \ |
| 682 | printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1) |
Denys Vlasenko | a1d541e | 2012-01-20 11:04:04 +0100 | [diff] [blame] | 683 | extern char *sprinttv(char *, struct tcb *, long, enum bitness_t, int special); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 684 | extern void print_timespec(struct tcb *, long); |
| 685 | extern void sprint_timespec(char *, struct tcb *, long); |
John Hughes | 5826589 | 2001-10-18 15:13:53 +0000 | [diff] [blame] | 686 | #ifdef HAVE_SIGINFO_T |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 687 | extern void printsiginfo(siginfo_t *, int); |
Denys Vlasenko | d4d3ede | 2013-02-13 16:31:32 +0100 | [diff] [blame] | 688 | extern void printsiginfo_at(struct tcb *tcp, long addr); |
John Hughes | 5826589 | 2001-10-18 15:13:53 +0000 | [diff] [blame] | 689 | #endif |
Dmitry V. Levin | 3138213 | 2011-03-04 05:08:02 +0300 | [diff] [blame] | 690 | extern void printfd(struct tcb *, int); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 691 | extern void printsock(struct tcb *, long, int); |
| 692 | extern void print_sock_optmgmt(struct tcb *, long, int); |
| 693 | extern void printrusage(struct tcb *, long); |
Sergei Trofimovich | 02a08fb | 2011-08-11 18:04:53 +0300 | [diff] [blame] | 694 | #ifdef ALPHA |
| 695 | extern void printrusage32(struct tcb *, long); |
| 696 | #endif |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 697 | extern void printuid(const char *, unsigned long); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 698 | extern void print_sigset(struct tcb *, long, int); |
| 699 | extern void printsignal(int); |
Dmitry V. Levin | 8884968 | 2011-06-13 22:58:44 +0000 | [diff] [blame] | 700 | extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov); |
Denys Vlasenko | e0bc222 | 2012-04-28 14:26:18 +0200 | [diff] [blame] | 701 | extern void tprint_iov_upto(struct tcb *, unsigned long, unsigned long, int decode_iov, unsigned long); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 702 | extern void tprint_open_modes(mode_t); |
| 703 | extern const char *sprint_open_modes(mode_t); |
Mike Frysinger | 0cbed35 | 2012-04-04 22:22:01 -0400 | [diff] [blame] | 704 | extern void print_loff_t(struct tcb *, long); |
Grant Edwards | 8a08277 | 2011-04-07 20:25:40 +0000 | [diff] [blame] | 705 | |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 706 | extern const struct_ioctlent *ioctl_lookup(long); |
| 707 | extern const struct_ioctlent *ioctl_next_match(const struct_ioctlent *); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 708 | extern int ioctl_decode(struct tcb *, long, long); |
| 709 | extern int term_ioctl(struct tcb *, long, long); |
| 710 | extern int sock_ioctl(struct tcb *, long, long); |
| 711 | extern int proc_ioctl(struct tcb *, int, int); |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 712 | extern int rtc_ioctl(struct tcb *, long, long); |
| 713 | extern int scsi_ioctl(struct tcb *, long, long); |
Dmitry V. Levin | 4ef6db4 | 2011-01-15 20:15:31 +0000 | [diff] [blame] | 714 | extern int block_ioctl(struct tcb *, long, long); |
Mike Frysinger | 0cbed35 | 2012-04-04 22:22:01 -0400 | [diff] [blame] | 715 | extern int mtd_ioctl(struct tcb *, long, long); |
Mike Frysinger | d648f29 | 2013-05-01 23:35:30 -0400 | [diff] [blame] | 716 | extern int ubi_ioctl(struct tcb *, long, long); |
Mike Frysinger | ebee04c | 2012-04-17 22:19:31 -0400 | [diff] [blame] | 717 | extern int loop_ioctl(struct tcb *, long, long); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 718 | |
Andreas Schwab | e5355de | 2009-10-27 16:56:43 +0100 | [diff] [blame] | 719 | extern int tv_nz(struct timeval *); |
| 720 | extern int tv_cmp(struct timeval *, struct timeval *); |
| 721 | extern double tv_float(struct timeval *); |
| 722 | extern void tv_add(struct timeval *, struct timeval *, struct timeval *); |
| 723 | extern void tv_sub(struct timeval *, struct timeval *, struct timeval *); |
| 724 | extern void tv_mul(struct timeval *, struct timeval *, int); |
| 725 | extern void tv_div(struct timeval *, struct timeval *, int); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 726 | |
Denys Vlasenko | 7de265d | 2012-03-13 11:44:31 +0100 | [diff] [blame] | 727 | /* Strace log generation machinery. |
| 728 | * |
| 729 | * printing_tcp: tcb which has incomplete line being printed right now. |
| 730 | * NULL if last line has been completed ('\n'-terminated). |
| 731 | * printleader(tcp) examines it, finishes incomplete line if needed, |
| 732 | * the sets it to tcp. |
| 733 | * line_ended() clears printing_tcp and resets ->curcol = 0. |
| 734 | * tcp->curcol == 0 check is also used to detect completeness |
| 735 | * of last line, since in -ff mode just checking printing_tcp for NULL |
| 736 | * is not enough. |
| 737 | * |
| 738 | * If you change this code, test log generation in both -f and -ff modes |
| 739 | * using: |
| 740 | * strace -oLOG -f[f] test/threaded_execve |
| 741 | * strace -oLOG -f[f] test/sigkill_rain |
| 742 | * strace -oLOG -f[f] -p "`pidof web_browser`" |
| 743 | */ |
| 744 | extern struct tcb *printing_tcp; |
| 745 | extern void printleader(struct tcb *); |
| 746 | extern void line_ended(void); |
| 747 | extern void tabto(void); |
| 748 | extern void tprintf(const char *fmt, ...) __attribute__ ((format (printf, 1, 2))); |
| 749 | extern void tprints(const char *str); |
| 750 | |
Denys Vlasenko | 9fd4f96 | 2012-03-19 09:36:42 +0100 | [diff] [blame] | 751 | #if SUPPORTED_PERSONALITIES > 1 |
| 752 | extern void set_personality(int personality); |
Denys Vlasenko | ae8643e | 2013-02-15 14:55:14 +0100 | [diff] [blame] | 753 | extern unsigned current_personality; |
Denys Vlasenko | 9fd4f96 | 2012-03-19 09:36:42 +0100 | [diff] [blame] | 754 | #else |
| 755 | # define set_personality(personality) ((void)0) |
| 756 | # define current_personality 0 |
Denys Vlasenko | ae8643e | 2013-02-15 14:55:14 +0100 | [diff] [blame] | 757 | #endif |
| 758 | |
| 759 | #if SUPPORTED_PERSONALITIES == 1 |
| 760 | # define current_wordsize PERSONALITY0_WORDSIZE |
| 761 | #else |
| 762 | # if SUPPORTED_PERSONALITIES == 2 && PERSONALITY0_WORDSIZE == PERSONALITY1_WORDSIZE |
| 763 | # define current_wordsize PERSONALITY0_WORDSIZE |
| 764 | # else |
| 765 | extern unsigned current_wordsize; |
| 766 | # endif |
Denys Vlasenko | 9fd4f96 | 2012-03-19 09:36:42 +0100 | [diff] [blame] | 767 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 768 | |
Denys Vlasenko | e015d2d | 2013-02-15 14:58:52 +0100 | [diff] [blame] | 769 | /* In many, many places we play fast and loose and use |
| 770 | * tprintf("%d", (int) tcp->u_arg[N]) to print fds, pids etc. |
| 771 | * We probably need to use widen_to_long() instead: |
| 772 | */ |
| 773 | #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4 |
| 774 | # define widen_to_long(v) (current_wordsize == 4 ? (long)(int32_t)(v) : (long)(v)) |
| 775 | #else |
| 776 | # define widen_to_long(v) ((long)(v)) |
| 777 | #endif |
| 778 | |
Denys Vlasenko | 9cbc15b | 2013-02-22 13:37:36 +0100 | [diff] [blame] | 779 | extern const struct_sysent sysent0[]; |
| 780 | extern const char *const errnoent0[]; |
| 781 | extern const char *const signalent0[]; |
| 782 | extern const struct_ioctlent ioctlent0[]; |
| 783 | extern qualbits_t *qual_vec[SUPPORTED_PERSONALITIES]; |
| 784 | #define qual_flags (qual_vec[current_personality]) |
| 785 | #if SUPPORTED_PERSONALITIES > 1 |
Denys Vlasenko | a9fe13c | 2013-02-22 13:26:10 +0100 | [diff] [blame] | 786 | extern const struct_sysent *sysent; |
Denys Vlasenko | 39fca62 | 2011-08-20 02:12:33 +0200 | [diff] [blame] | 787 | extern const char *const *errnoent; |
Roland McGrath | ee36ce1 | 2004-09-04 03:53:10 +0000 | [diff] [blame] | 788 | extern const char *const *signalent; |
Denys Vlasenko | 9cbc15b | 2013-02-22 13:37:36 +0100 | [diff] [blame] | 789 | extern const struct_ioctlent *ioctlent; |
| 790 | #else |
| 791 | # define sysent sysent0 |
| 792 | # define errnoent errnoent0 |
| 793 | # define signalent signalent0 |
| 794 | # define ioctlent ioctlent0 |
| 795 | #endif |
| 796 | extern unsigned nsyscalls; |
| 797 | extern unsigned nerrnos; |
Denys Vlasenko | afc6403 | 2011-08-23 13:29:01 +0200 | [diff] [blame] | 798 | extern unsigned nsignals; |
Denys Vlasenko | 9cbc15b | 2013-02-22 13:37:36 +0100 | [diff] [blame] | 799 | extern unsigned nioctlents; |
| 800 | extern unsigned num_quals; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 801 | |
Denys Vlasenko | c956ef0 | 2013-02-16 14:25:56 +0100 | [diff] [blame] | 802 | /* |
| 803 | * If you need non-NULL sysent[scno].sys_func and sysent[scno].sys_name |
| 804 | */ |
Denys Vlasenko | 5721cdb | 2013-02-16 13:22:38 +0100 | [diff] [blame] | 805 | #define SCNO_IS_VALID(scno) \ |
Denys Vlasenko | c956ef0 | 2013-02-16 14:25:56 +0100 | [diff] [blame] | 806 | ((unsigned long)(scno) < nsyscalls && sysent[scno].sys_func) |
| 807 | |
| 808 | /* Only ensures that sysent[scno] isn't out of range */ |
| 809 | #define SCNO_IN_RANGE(scno) \ |
| 810 | ((unsigned long)(scno) < nsyscalls) |