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> |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 5 | * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> |
| 6 | * Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| 7 | * Linux for s390 port by D.J. Barrow |
| 8 | * <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com> |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * 3. The name of the author may not be used to endorse or promote products |
| 20 | * derived from this software without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 24 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 25 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | * $Id$ |
| 34 | */ |
| 35 | |
| 36 | #include "defs.h" |
| 37 | |
| 38 | #include <signal.h> |
| 39 | #include <time.h> |
| 40 | #include <errno.h> |
| 41 | #include <sys/user.h> |
| 42 | #include <sys/syscall.h> |
| 43 | #include <sys/param.h> |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 44 | |
Wichert Akkerman | 15dea97 | 1999-10-06 13:06:34 +0000 | [diff] [blame] | 45 | #if HAVE_ASM_REG_H |
Wichert Akkerman | 00a82ee | 2001-03-28 20:29:17 +0000 | [diff] [blame] | 46 | #ifdef SPARC |
| 47 | # define fpq kernel_fpq |
| 48 | # define fq kernel_fq |
| 49 | # define fpu kernel_fpu |
| 50 | #endif |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 51 | #include <asm/reg.h> |
Wichert Akkerman | 00a82ee | 2001-03-28 20:29:17 +0000 | [diff] [blame] | 52 | #ifdef SPARC |
| 53 | # undef fpq |
| 54 | # undef fq |
| 55 | # undef fpu |
| 56 | #endif |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 57 | #endif |
| 58 | |
Wichert Akkerman | 15dea97 | 1999-10-06 13:06:34 +0000 | [diff] [blame] | 59 | #ifdef HAVE_SYS_REG_H |
| 60 | #include <sys/reg.h> |
| 61 | #ifndef PTRACE_PEEKUSR |
| 62 | # define PTRACE_PEEKUSR PTRACE_PEEKUSER |
| 63 | #endif |
Wichert Akkerman | faf7222 | 2000-02-19 23:59:03 +0000 | [diff] [blame] | 64 | #elif defined(HAVE_LINUX_PTRACE_H) |
| 65 | #undef PTRACE_SYSCALL |
| 66 | #include <linux/ptrace.h> |
Wichert Akkerman | 15dea97 | 1999-10-06 13:06:34 +0000 | [diff] [blame] | 67 | #endif |
| 68 | |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 69 | #if defined(LINUX) && defined(IA64) |
| 70 | # include <asm/ptrace_offsets.h> |
| 71 | # include <asm/rse.h> |
| 72 | #endif |
| 73 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 74 | #ifndef SYS_ERRLIST_DECLARED |
| 75 | extern int sys_nerr; |
| 76 | extern char *sys_errlist[]; |
| 77 | #endif /* SYS_ERRLIST_DECLARED */ |
| 78 | |
Pavel Machek | d8ae7e3 | 2000-02-01 17:17:25 +0000 | [diff] [blame] | 79 | #define NR_SYSCALL_BASE 0 |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 80 | #ifdef LINUX |
| 81 | #ifndef ERESTARTSYS |
| 82 | #define ERESTARTSYS 512 |
| 83 | #endif |
| 84 | #ifndef ERESTARTNOINTR |
| 85 | #define ERESTARTNOINTR 513 |
| 86 | #endif |
| 87 | #ifndef ERESTARTNOHAND |
| 88 | #define ERESTARTNOHAND 514 /* restart if no handler.. */ |
| 89 | #endif |
| 90 | #ifndef ENOIOCTLCMD |
| 91 | #define ENOIOCTLCMD 515 /* No ioctl command */ |
| 92 | #endif |
| 93 | #ifndef NSIG |
| 94 | #define NSIG 32 |
| 95 | #endif |
| 96 | #ifdef ARM |
| 97 | #undef NSIG |
| 98 | #define NSIG 32 |
Pavel Machek | d8ae7e3 | 2000-02-01 17:17:25 +0000 | [diff] [blame] | 99 | #undef NR_SYSCALL_BASE |
| 100 | #define NR_SYSCALL_BASE __NR_SYSCALL_BASE |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 101 | #endif |
| 102 | #endif /* LINUX */ |
| 103 | |
| 104 | #include "syscall.h" |
| 105 | |
| 106 | /* Define these shorthand notations to simplify the syscallent files. */ |
| 107 | #define TF TRACE_FILE |
| 108 | #define TI TRACE_IPC |
| 109 | #define TN TRACE_NETWORK |
| 110 | #define TP TRACE_PROCESS |
| 111 | #define TS TRACE_SIGNAL |
| 112 | |
| 113 | struct sysent sysent0[] = { |
| 114 | #include "syscallent.h" |
| 115 | }; |
| 116 | int nsyscalls0 = sizeof sysent0 / sizeof sysent0[0]; |
| 117 | |
| 118 | #if SUPPORTED_PERSONALITIES >= 2 |
| 119 | struct sysent sysent1[] = { |
| 120 | #include "syscallent1.h" |
| 121 | }; |
| 122 | int nsyscalls1 = sizeof sysent1 / sizeof sysent1[0]; |
| 123 | #endif /* SUPPORTED_PERSONALITIES >= 2 */ |
| 124 | |
| 125 | #if SUPPORTED_PERSONALITIES >= 3 |
| 126 | struct sysent sysent2[] = { |
| 127 | #include "syscallent2.h" |
| 128 | }; |
| 129 | int nsyscalls2 = sizeof sysent2 / sizeof sysent2[0]; |
| 130 | #endif /* SUPPORTED_PERSONALITIES >= 3 */ |
| 131 | |
| 132 | struct sysent *sysent; |
| 133 | int nsyscalls; |
| 134 | |
| 135 | /* Now undef them since short defines cause wicked namespace pollution. */ |
| 136 | #undef TF |
| 137 | #undef TI |
| 138 | #undef TN |
| 139 | #undef TP |
| 140 | #undef TS |
| 141 | |
| 142 | char *errnoent0[] = { |
| 143 | #include "errnoent.h" |
| 144 | }; |
| 145 | int nerrnos0 = sizeof errnoent0 / sizeof errnoent0[0]; |
| 146 | |
| 147 | #if SUPPORTED_PERSONALITIES >= 2 |
| 148 | char *errnoent1[] = { |
| 149 | #include "errnoent1.h" |
| 150 | }; |
| 151 | int nerrnos1 = sizeof errnoent1 / sizeof errnoent1[0]; |
| 152 | #endif /* SUPPORTED_PERSONALITIES >= 2 */ |
| 153 | |
| 154 | #if SUPPORTED_PERSONALITIES >= 3 |
| 155 | char *errnoent2[] = { |
| 156 | #include "errnoent2.h" |
| 157 | }; |
| 158 | int nerrnos2 = sizeof errnoent2 / sizeof errnoent2[0]; |
| 159 | #endif /* SUPPORTED_PERSONALITIES >= 3 */ |
| 160 | |
| 161 | char **errnoent; |
| 162 | int nerrnos; |
| 163 | |
| 164 | int current_personality; |
| 165 | |
| 166 | int |
Wichert Akkerman | e6f876c | 1999-06-22 15:28:30 +0000 | [diff] [blame] | 167 | set_personality(personality) |
| 168 | int personality; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 169 | { |
| 170 | switch (personality) { |
| 171 | case 0: |
| 172 | errnoent = errnoent0; |
| 173 | nerrnos = nerrnos0; |
| 174 | sysent = sysent0; |
| 175 | nsyscalls = nsyscalls0; |
| 176 | ioctlent = ioctlent0; |
| 177 | nioctlents = nioctlents0; |
| 178 | signalent = signalent0; |
| 179 | nsignals = nsignals0; |
| 180 | break; |
| 181 | |
| 182 | #if SUPPORTED_PERSONALITIES >= 2 |
| 183 | case 1: |
| 184 | errnoent = errnoent1; |
| 185 | nerrnos = nerrnos1; |
| 186 | sysent = sysent1; |
| 187 | nsyscalls = nsyscalls1; |
| 188 | ioctlent = ioctlent1; |
| 189 | nioctlents = nioctlents1; |
| 190 | signalent = signalent1; |
| 191 | nsignals = nsignals1; |
| 192 | break; |
| 193 | #endif /* SUPPORTED_PERSONALITIES >= 2 */ |
| 194 | |
| 195 | #if SUPPORTED_PERSONALITIES >= 3 |
| 196 | case 2: |
| 197 | errnoent = errnoent2; |
| 198 | nerrnos = nerrnos2; |
| 199 | sysent = sysent2; |
| 200 | nsyscalls = nsyscalls2; |
| 201 | ioctlent = ioctlent2; |
| 202 | nioctlents = nioctlents2; |
| 203 | signalent = signalent2; |
| 204 | nsignals = nsignals2; |
| 205 | break; |
| 206 | #endif /* SUPPORTED_PERSONALITIES >= 3 */ |
| 207 | |
| 208 | default: |
| 209 | return -1; |
| 210 | } |
| 211 | |
| 212 | current_personality = personality; |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | int qual_flags[MAX_QUALS]; |
| 217 | |
| 218 | static int call_count[MAX_QUALS]; |
| 219 | static int error_count[MAX_QUALS]; |
| 220 | static struct timeval tv_count[MAX_QUALS]; |
| 221 | static int sorted_count[MAX_QUALS]; |
| 222 | |
| 223 | static struct timeval shortest = { 1000000, 0 }; |
| 224 | |
| 225 | static int lookup_syscall(), lookup_signal(), lookup_fault(), lookup_desc(); |
| 226 | |
| 227 | static struct qual_options { |
| 228 | int bitflag; |
| 229 | char *option_name; |
| 230 | int (*lookup)(); |
| 231 | char *argument_name; |
| 232 | } qual_options[] = { |
| 233 | { QUAL_TRACE, "trace", lookup_syscall, "system call" }, |
| 234 | { QUAL_TRACE, "t", lookup_syscall, "system call" }, |
| 235 | { QUAL_ABBREV, "abbrev", lookup_syscall, "system call" }, |
| 236 | { QUAL_ABBREV, "a", lookup_syscall, "system call" }, |
| 237 | { QUAL_VERBOSE, "verbose", lookup_syscall, "system call" }, |
| 238 | { QUAL_VERBOSE, "v", lookup_syscall, "system call" }, |
| 239 | { QUAL_RAW, "raw", lookup_syscall, "system call" }, |
| 240 | { QUAL_RAW, "x", lookup_syscall, "system call" }, |
| 241 | { QUAL_SIGNAL, "signal", lookup_signal, "signal" }, |
| 242 | { QUAL_SIGNAL, "signals", lookup_signal, "signal" }, |
| 243 | { QUAL_SIGNAL, "s", lookup_signal, "signal" }, |
| 244 | { QUAL_FAULT, "fault", lookup_fault, "fault" }, |
| 245 | { QUAL_FAULT, "faults", lookup_fault, "fault" }, |
| 246 | { QUAL_FAULT, "m", lookup_fault, "fault" }, |
| 247 | { QUAL_READ, "read", lookup_desc, "descriptor" }, |
| 248 | { QUAL_READ, "reads", lookup_desc, "descriptor" }, |
| 249 | { QUAL_READ, "r", lookup_desc, "descriptor" }, |
| 250 | { QUAL_WRITE, "write", lookup_desc, "descriptor" }, |
| 251 | { QUAL_WRITE, "writes", lookup_desc, "descriptor" }, |
| 252 | { QUAL_WRITE, "w", lookup_desc, "descriptor" }, |
| 253 | { 0, NULL, NULL, NULL }, |
| 254 | }; |
| 255 | |
| 256 | static int |
| 257 | lookup_syscall(s) |
| 258 | char *s; |
| 259 | { |
| 260 | int i; |
| 261 | |
| 262 | for (i = 0; i < nsyscalls; i++) { |
| 263 | if (strcmp(s, sysent[i].sys_name) == 0) |
| 264 | return i; |
| 265 | } |
| 266 | return -1; |
| 267 | } |
| 268 | |
| 269 | static int |
| 270 | lookup_signal(s) |
| 271 | char *s; |
| 272 | { |
| 273 | int i; |
| 274 | char buf[32]; |
| 275 | |
Wichert Akkerman | 2ee6e45 | 2000-02-18 15:36:12 +0000 | [diff] [blame] | 276 | if (s && *s && isdigit((unsigned char)*s)) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 277 | return atoi(s); |
| 278 | strcpy(buf, s); |
| 279 | s = buf; |
| 280 | for (i = 0; s[i]; i++) |
Wichert Akkerman | 2ee6e45 | 2000-02-18 15:36:12 +0000 | [diff] [blame] | 281 | s[i] = toupper((unsigned char)(s[i])); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 282 | if (strncmp(s, "SIG", 3) == 0) |
| 283 | s += 3; |
| 284 | for (i = 0; i <= NSIG; i++) { |
Nate Sammons | ce780fc | 1999-03-29 23:23:13 +0000 | [diff] [blame] | 285 | if (strcmp(s, signame(i) + 3) == 0) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 286 | return i; |
| 287 | } |
| 288 | return -1; |
| 289 | } |
| 290 | |
| 291 | static int |
| 292 | lookup_fault(s) |
| 293 | char *s; |
| 294 | { |
| 295 | return -1; |
| 296 | } |
| 297 | |
| 298 | static int |
| 299 | lookup_desc(s) |
| 300 | char *s; |
| 301 | { |
Wichert Akkerman | 2ee6e45 | 2000-02-18 15:36:12 +0000 | [diff] [blame] | 302 | if (s && *s && isdigit((unsigned char)*s)) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 303 | return atoi(s); |
| 304 | return -1; |
| 305 | } |
| 306 | |
| 307 | static int |
| 308 | lookup_class(s) |
| 309 | char *s; |
| 310 | { |
| 311 | if (strcmp(s, "file") == 0) |
| 312 | return TRACE_FILE; |
| 313 | if (strcmp(s, "ipc") == 0) |
| 314 | return TRACE_IPC; |
| 315 | if (strcmp(s, "network") == 0) |
| 316 | return TRACE_NETWORK; |
| 317 | if (strcmp(s, "process") == 0) |
| 318 | return TRACE_PROCESS; |
| 319 | if (strcmp(s, "signal") == 0) |
| 320 | return TRACE_SIGNAL; |
| 321 | return -1; |
| 322 | } |
| 323 | |
| 324 | void |
| 325 | qualify(s) |
| 326 | char *s; |
| 327 | { |
| 328 | struct qual_options *opt; |
| 329 | int not; |
| 330 | char *p; |
| 331 | int i, n; |
| 332 | |
| 333 | opt = &qual_options[0]; |
| 334 | for (i = 0; (p = qual_options[i].option_name); i++) { |
| 335 | n = strlen(p); |
| 336 | if (strncmp(s, p, n) == 0 && s[n] == '=') { |
| 337 | opt = &qual_options[i]; |
| 338 | s += n + 1; |
| 339 | break; |
| 340 | } |
| 341 | } |
| 342 | not = 0; |
| 343 | if (*s == '!') { |
| 344 | not = 1; |
| 345 | s++; |
| 346 | } |
| 347 | if (strcmp(s, "none") == 0) { |
| 348 | not = 1 - not; |
| 349 | s = "all"; |
| 350 | } |
| 351 | if (strcmp(s, "all") == 0) { |
| 352 | for (i = 0; i < MAX_QUALS; i++) { |
| 353 | if (not) |
| 354 | qual_flags[i] &= ~opt->bitflag; |
| 355 | else |
| 356 | qual_flags[i] |= opt->bitflag; |
| 357 | } |
| 358 | return; |
| 359 | } |
| 360 | for (i = 0; i < MAX_QUALS; i++) { |
| 361 | if (not) |
| 362 | qual_flags[i] |= opt->bitflag; |
| 363 | else |
| 364 | qual_flags[i] &= ~opt->bitflag; |
| 365 | } |
| 366 | for (p = strtok(s, ","); p; p = strtok(NULL, ",")) { |
| 367 | if (opt->bitflag == QUAL_TRACE && (n = lookup_class(p)) > 0) { |
| 368 | for (i = 0; i < MAX_QUALS; i++) { |
| 369 | if (sysent[i].sys_flags & n) { |
| 370 | if (not) |
| 371 | qual_flags[i] &= ~opt->bitflag; |
| 372 | else |
| 373 | qual_flags[i] |= opt->bitflag; |
| 374 | } |
| 375 | } |
| 376 | continue; |
| 377 | } |
| 378 | if ((n = (*opt->lookup)(p)) < 0) { |
| 379 | fprintf(stderr, "strace: invalid %s `%s'\n", |
| 380 | opt->argument_name, p); |
| 381 | exit(1); |
| 382 | } |
| 383 | if (not) |
| 384 | qual_flags[n] &= ~opt->bitflag; |
| 385 | else |
| 386 | qual_flags[n] |= opt->bitflag; |
| 387 | } |
| 388 | return; |
| 389 | } |
| 390 | |
| 391 | static void |
| 392 | dumpio(tcp) |
| 393 | struct tcb *tcp; |
| 394 | { |
| 395 | if (syserror(tcp)) |
| 396 | return; |
| 397 | if (tcp->u_arg[0] < 0 || tcp->u_arg[0] >= MAX_QUALS) |
| 398 | return; |
Pavel Machek | d8ae7e3 | 2000-02-01 17:17:25 +0000 | [diff] [blame] | 399 | switch (tcp->scno + NR_SYSCALL_BASE) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 400 | case SYS_read: |
| 401 | #ifdef SYS_recv |
| 402 | case SYS_recv: |
| 403 | #endif |
| 404 | #ifdef SYS_recvfrom |
| 405 | case SYS_recvfrom: |
| 406 | #endif |
| 407 | if (qual_flags[tcp->u_arg[0]] & QUAL_READ) |
| 408 | dumpstr(tcp, tcp->u_arg[1], tcp->u_rval); |
| 409 | break; |
| 410 | case SYS_write: |
| 411 | #ifdef SYS_send |
| 412 | case SYS_send: |
| 413 | #endif |
| 414 | #ifdef SYS_sendto |
| 415 | case SYS_sendto: |
| 416 | #endif |
| 417 | if (qual_flags[tcp->u_arg[0]] & QUAL_WRITE) |
| 418 | dumpstr(tcp, tcp->u_arg[1], tcp->u_arg[2]); |
| 419 | break; |
| 420 | } |
| 421 | } |
| 422 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 423 | #ifndef FREEBSD |
Wichert Akkerman | 8829a55 | 1999-06-11 13:18:40 +0000 | [diff] [blame] | 424 | enum subcall_style { shift_style, deref_style, mask_style, door_style }; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 425 | #else /* FREEBSD */ |
| 426 | enum subcall_style { shift_style, deref_style, mask_style, door_style, table_style }; |
| 427 | |
| 428 | struct subcall { |
| 429 | int call; |
| 430 | int nsubcalls; |
| 431 | int subcalls[5]; |
| 432 | }; |
| 433 | |
| 434 | const struct subcall subcalls_table[] = { |
| 435 | { SYS_shmsys, 5, { SYS_shmat, SYS_shmctl, SYS_shmdt, SYS_shmget, SYS_shmctl } }, |
John Hughes | 61eeb55 | 2001-03-06 15:51:53 +0000 | [diff] [blame] | 436 | #ifdef SYS_semconfig |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 437 | { SYS_semsys, 4, { SYS___semctl, SYS_semget, SYS_semop, SYS_semconfig } }, |
John Hughes | 61eeb55 | 2001-03-06 15:51:53 +0000 | [diff] [blame] | 438 | #else |
| 439 | { SYS_semsys, 3, { SYS___semctl, SYS_semget, SYS_semop } }, |
| 440 | #endif |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 441 | { SYS_msgsys, 4, { SYS_msgctl, SYS_msgget, SYS_msgsnd, SYS_msgrcv } }, |
| 442 | }; |
| 443 | #endif /* FREEBSD */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 444 | |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 445 | #if !(defined(LINUX) && ( defined(ALPHA) || defined(IA64) || defined(MIPS) )) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 446 | |
| 447 | const int socket_map [] = { |
| 448 | /* SYS_SOCKET */ 97, |
| 449 | /* SYS_BIND */ 104, |
| 450 | /* SYS_CONNECT */ 98, |
| 451 | /* SYS_LISTEN */ 106, |
| 452 | /* SYS_ACCEPT */ 99, |
| 453 | /* SYS_GETSOCKNAME */ 150, |
| 454 | /* SYS_GETPEERNAME */ 141, |
| 455 | /* SYS_SOCKETPAIR */ 135, |
| 456 | /* SYS_SEND */ 101, |
| 457 | /* SYS_RECV */ 102, |
| 458 | /* SYS_SENDTO */ 133, |
| 459 | /* SYS_RECVFROM */ 125, |
| 460 | /* SYS_SHUTDOWN */ 134, |
| 461 | /* SYS_SETSOCKOPT */ 105, |
| 462 | /* SYS_GETSOCKOPT */ 118, |
| 463 | /* SYS_SENDMSG */ 114, |
| 464 | /* SYS_RECVMSG */ 113 |
| 465 | }; |
| 466 | |
| 467 | void |
Wichert Akkerman | e6f876c | 1999-06-22 15:28:30 +0000 | [diff] [blame] | 468 | sparc_socket_decode (tcp) |
| 469 | struct tcb *tcp; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 470 | { |
| 471 | volatile long addr; |
| 472 | volatile int i, n; |
| 473 | |
| 474 | if (tcp->u_arg [0] < 1 || tcp->u_arg [0] > sizeof(socket_map)/sizeof(int)+1){ |
| 475 | return; |
| 476 | } |
| 477 | tcp->scno = socket_map [tcp->u_arg [0]-1]; |
| 478 | n = tcp->u_nargs = sysent [tcp->scno].nargs; |
| 479 | addr = tcp->u_arg [1]; |
| 480 | for (i = 0; i < n; i++){ |
| 481 | int arg; |
| 482 | if (umoven (tcp, addr, sizeof (arg), (void *) &arg) < 0) |
| 483 | arg = 0; |
| 484 | tcp->u_arg [i] = arg; |
| 485 | addr += sizeof (arg); |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | static void |
| 490 | decode_subcall(tcp, subcall, nsubcalls, style) |
| 491 | struct tcb *tcp; |
| 492 | int subcall; |
| 493 | int nsubcalls; |
| 494 | enum subcall_style style; |
| 495 | { |
| 496 | int i, addr, mask, arg; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 497 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 498 | switch (style) { |
| 499 | case shift_style: |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 500 | if (tcp->u_arg[0] < 0 || tcp->u_arg[0] >= nsubcalls) |
| 501 | return; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 502 | tcp->scno = subcall + tcp->u_arg[0]; |
| 503 | if (sysent[tcp->scno].nargs != -1) |
| 504 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 505 | else |
| 506 | tcp->u_nargs--; |
| 507 | for (i = 0; i < tcp->u_nargs; i++) |
| 508 | tcp->u_arg[i] = tcp->u_arg[i + 1]; |
| 509 | break; |
| 510 | case deref_style: |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 511 | if (tcp->u_arg[0] < 0 || tcp->u_arg[0] >= nsubcalls) |
| 512 | return; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 513 | tcp->scno = subcall + tcp->u_arg[0]; |
| 514 | addr = tcp->u_arg[1]; |
| 515 | for (i = 0; i < sysent[tcp->scno].nargs; i++) { |
| 516 | if (umove(tcp, addr, &arg) < 0) |
| 517 | arg = 0; |
| 518 | tcp->u_arg[i] = arg; |
| 519 | addr += sizeof(arg); |
| 520 | } |
| 521 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 522 | break; |
| 523 | case mask_style: |
| 524 | mask = (tcp->u_arg[0] >> 8) & 0xff; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 525 | for (i = 0; mask; i++) |
| 526 | mask >>= 1; |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 527 | if (i >= nsubcalls) |
| 528 | return; |
| 529 | tcp->u_arg[0] &= 0xff; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 530 | tcp->scno = subcall + i; |
| 531 | if (sysent[tcp->scno].nargs != -1) |
| 532 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 533 | break; |
Wichert Akkerman | 8829a55 | 1999-06-11 13:18:40 +0000 | [diff] [blame] | 534 | case door_style: |
| 535 | /* |
| 536 | * Oh, yuck. The call code is the *sixth* argument. |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 537 | * (don't you mean the *last* argument? - JH) |
Wichert Akkerman | 8829a55 | 1999-06-11 13:18:40 +0000 | [diff] [blame] | 538 | */ |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 539 | if (tcp->u_arg[5] < 0 || tcp->u_arg[5] >= nsubcalls) |
| 540 | return; |
Wichert Akkerman | 8829a55 | 1999-06-11 13:18:40 +0000 | [diff] [blame] | 541 | tcp->scno = subcall + tcp->u_arg[5]; |
| 542 | if (sysent[tcp->scno].nargs != -1) |
| 543 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 544 | else |
| 545 | tcp->u_nargs--; |
| 546 | break; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 547 | #ifdef FREEBSD |
| 548 | case table_style: |
| 549 | for (i = 0; i < sizeof(subcalls_table) / sizeof(struct subcall); i++) |
| 550 | if (subcalls_table[i].call == tcp->scno) break; |
| 551 | if (i < sizeof(subcalls_table) / sizeof(struct subcall) && |
| 552 | tcp->u_arg[0] >= 0 && tcp->u_arg[0] < subcalls_table[i].nsubcalls) { |
| 553 | tcp->scno = subcalls_table[i].subcalls[tcp->u_arg[0]]; |
| 554 | for (i = 0; i < tcp->u_nargs; i++) |
| 555 | tcp->u_arg[i] = tcp->u_arg[i + 1]; |
| 556 | } |
| 557 | break; |
| 558 | #endif /* FREEBSD */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 559 | } |
| 560 | } |
| 561 | #endif |
| 562 | |
| 563 | struct tcb *tcp_last = NULL; |
| 564 | |
| 565 | static int |
| 566 | internal_syscall(tcp) |
| 567 | struct tcb *tcp; |
| 568 | { |
| 569 | /* |
| 570 | * We must always trace a few critical system calls in order to |
| 571 | * correctly support following forks in the presence of tracing |
| 572 | * qualifiers. |
| 573 | */ |
Pavel Machek | d8ae7e3 | 2000-02-01 17:17:25 +0000 | [diff] [blame] | 574 | switch (tcp->scno + NR_SYSCALL_BASE) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 575 | #ifdef SYS_fork |
| 576 | case SYS_fork: |
| 577 | #endif |
| 578 | #ifdef SYS_vfork |
| 579 | case SYS_vfork: |
| 580 | #endif |
John Hughes | 4e36a81 | 2001-04-18 15:11:51 +0000 | [diff] [blame] | 581 | #ifdef SYS_fork1 |
| 582 | case SYS_fork1: |
| 583 | #endif |
| 584 | #ifdef SYS_forkall |
| 585 | case SYS_forkall: |
| 586 | #endif |
| 587 | #ifdef SYS_rfork1 |
| 588 | case SYS_rfork1: |
| 589 | #endif |
| 590 | #ifdef SYS_rforkall |
| 591 | case SYS_rforkall: |
| 592 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 593 | internal_fork(tcp); |
| 594 | break; |
Wichert Akkerman | 7a0b649 | 1999-12-23 15:08:17 +0000 | [diff] [blame] | 595 | #ifdef SYS_clone |
| 596 | case SYS_clone: |
| 597 | internal_clone(tcp); |
| 598 | break; |
| 599 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 600 | #ifdef SYS_execv |
| 601 | case SYS_execv: |
| 602 | #endif |
| 603 | #ifdef SYS_execve |
| 604 | case SYS_execve: |
| 605 | #endif |
John Hughes | 4e36a81 | 2001-04-18 15:11:51 +0000 | [diff] [blame] | 606 | #ifdef SYS_rexecve |
| 607 | case SYS_rexecve: |
| 608 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 609 | internal_exec(tcp); |
| 610 | break; |
| 611 | |
| 612 | #ifdef SYS_wait |
| 613 | case SYS_wait: |
| 614 | #endif |
| 615 | #ifdef SYS_wait4 |
| 616 | case SYS_wait4: |
| 617 | #endif |
| 618 | #ifdef SYS_waitpid |
| 619 | case SYS_waitpid: |
| 620 | #endif |
| 621 | #ifdef SYS_waitsys |
| 622 | case SYS_waitsys: |
| 623 | #endif |
| 624 | internal_wait(tcp); |
| 625 | break; |
| 626 | |
| 627 | #ifdef SYS_exit |
| 628 | case SYS_exit: |
| 629 | #endif |
| 630 | internal_exit(tcp); |
| 631 | break; |
| 632 | } |
| 633 | return 0; |
| 634 | } |
| 635 | |
Wichert Akkerman | c792698 | 2000-04-10 22:22:31 +0000 | [diff] [blame] | 636 | |
| 637 | #ifdef LINUX |
| 638 | #if defined (I386) |
| 639 | static long eax; |
| 640 | #elif defined (IA64) |
| 641 | long r8, r10, psr; |
| 642 | long ia32 = 0; |
| 643 | #elif defined (POWERPC) |
| 644 | static long result,flags; |
| 645 | #elif defined (M68K) |
| 646 | static int d0; |
| 647 | #elif defined (ARM) |
| 648 | static int r0; |
| 649 | #elif defined (ALPHA) |
| 650 | static long r0; |
| 651 | static long a3; |
| 652 | #elif defined (SPARC) |
Wichert Akkerman | 00a82ee | 2001-03-28 20:29:17 +0000 | [diff] [blame] | 653 | static struct regs regs; |
Wichert Akkerman | c792698 | 2000-04-10 22:22:31 +0000 | [diff] [blame] | 654 | static unsigned long trap; |
| 655 | #elif defined(MIPS) |
| 656 | static long a3; |
| 657 | static long r2; |
| 658 | #elif defined(S390) |
| 659 | static long gpr2; |
| 660 | static long pc; |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 661 | #elif defined(HPPA) |
| 662 | static long r28; |
Wichert Akkerman | c792698 | 2000-04-10 22:22:31 +0000 | [diff] [blame] | 663 | #endif |
| 664 | #endif /* LINUX */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 665 | #ifdef FREEBSD |
| 666 | struct reg regs; |
| 667 | #endif /* FREEBSD */ |
Wichert Akkerman | c792698 | 2000-04-10 22:22:31 +0000 | [diff] [blame] | 668 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 669 | int |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 670 | get_scno(tcp) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 671 | struct tcb *tcp; |
| 672 | { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 673 | long scno = 0; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 674 | #ifndef USE_PROCFS |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 675 | int pid = tcp->pid; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 676 | #endif /* !PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 677 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 678 | #ifdef LINUX |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 679 | #if defined(S390) |
| 680 | if (upeek(tcp->pid,PT_PSWADDR,&pc) < 0) |
| 681 | return -1; |
| 682 | scno = ptrace(PTRACE_PEEKTEXT, tcp->pid, (char *)(pc-4),0); |
| 683 | if (errno) |
| 684 | return -1; |
| 685 | scno&=0xFF; |
| 686 | #elif defined (POWERPC) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 687 | if (upeek(pid, 4*PT_R0, &scno) < 0) |
| 688 | return -1; |
| 689 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 690 | /* Check if we return from execve. */ |
| 691 | if (scno == 0 && (tcp->flags & TCB_WAITEXECVE)) { |
| 692 | tcp->flags &= ~TCB_WAITEXECVE; |
| 693 | return 0; |
| 694 | } |
| 695 | } |
| 696 | #elif defined (I386) |
| 697 | if (upeek(pid, 4*ORIG_EAX, &scno) < 0) |
| 698 | return -1; |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 699 | #elif defined(IA64) |
| 700 | #define IA64_PSR_IS ((long)1 << 34) |
| 701 | if (upeek (pid, PT_CR_IPSR, &psr) >= 0) |
| 702 | ia32 = (psr & IA64_PSR_IS); |
| 703 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 704 | if (ia32) { |
| 705 | if (upeek(pid, PT_R8, &scno) < 0) |
| 706 | return -1; |
| 707 | } else { |
| 708 | if (upeek (pid, PT_R15, &scno) < 0) |
| 709 | return -1; |
| 710 | } |
| 711 | } else { |
| 712 | /* syscall in progress */ |
| 713 | if (upeek (pid, PT_R8, &r8) < 0) |
| 714 | return -1; |
| 715 | if (upeek (pid, PT_R10, &r10) < 0) |
| 716 | return -1; |
| 717 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 718 | #elif defined (ARM) |
| 719 | { |
| 720 | long pc; |
| 721 | upeek(pid, 4*15, &pc); |
| 722 | umoven(tcp, pc-4, 4, (char *)&scno); |
| 723 | scno &= 0x000fffff; |
| 724 | } |
| 725 | #elif defined (M68K) |
| 726 | if (upeek(pid, 4*PT_ORIG_D0, &scno) < 0) |
| 727 | return -1; |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 728 | #elif defined (MIPS) |
| 729 | if (upeek(pid, REG_A3, &a3) < 0) |
| 730 | return -1; |
| 731 | |
| 732 | if(!(tcp->flags & TCB_INSYSCALL)) { |
| 733 | if (upeek(pid, REG_V0, &scno) < 0) |
| 734 | return -1; |
| 735 | |
| 736 | if (scno < 0 || scno > nsyscalls) { |
| 737 | if(a3 == 0 || a3 == -1) { |
| 738 | if(debug) |
| 739 | fprintf (stderr, "stray syscall exit: v0 = %ld\n", scno); |
| 740 | return 0; |
| 741 | } |
| 742 | } |
| 743 | } else { |
| 744 | if (upeek(pid, REG_V0, &r2) < 0) |
| 745 | return -1; |
| 746 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 747 | #elif defined (ALPHA) |
| 748 | if (upeek(pid, REG_A3, &a3) < 0) |
| 749 | return -1; |
| 750 | |
| 751 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 752 | if (upeek(pid, REG_R0, &scno) < 0) |
| 753 | return -1; |
| 754 | |
| 755 | /* Check if we return from execve. */ |
| 756 | if (scno == 0 && tcp->flags & TCB_WAITEXECVE) { |
| 757 | tcp->flags &= ~TCB_WAITEXECVE; |
| 758 | return 0; |
| 759 | } |
| 760 | |
| 761 | /* |
| 762 | * Do some sanity checks to figure out if it's |
| 763 | * really a syscall entry |
| 764 | */ |
| 765 | if (scno < 0 || scno > nsyscalls) { |
| 766 | if (a3 == 0 || a3 == -1) { |
| 767 | if (debug) |
| 768 | fprintf (stderr, "stray syscall exit: r0 = %ld\n", scno); |
| 769 | return 0; |
| 770 | } |
| 771 | } |
| 772 | } |
| 773 | else { |
| 774 | if (upeek(pid, REG_R0, &r0) < 0) |
| 775 | return -1; |
| 776 | } |
| 777 | #elif defined (SPARC) |
| 778 | /* Everything we need is in the current register set. */ |
| 779 | if (ptrace(PTRACE_GETREGS,pid,(char *)®s,0) < 0) |
| 780 | return -1; |
| 781 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 782 | /* If we are entering, then disassemble the syscall trap. */ |
| 783 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 784 | /* Retrieve the syscall trap instruction. */ |
| 785 | errno = 0; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 786 | trap = ptrace(PTRACE_PEEKTEXT,pid,(char *)regs.r_pc,0); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 787 | if (errno) |
| 788 | return -1; |
| 789 | |
| 790 | /* Disassemble the trap to see what personality to use. */ |
| 791 | switch (trap) { |
| 792 | case 0x91d02010: |
| 793 | /* Linux/SPARC syscall trap. */ |
| 794 | set_personality(0); |
| 795 | break; |
Wichert Akkerman | dacfb6e | 1999-06-03 14:21:07 +0000 | [diff] [blame] | 796 | case 0x91d0206d: |
| 797 | /* Linux/SPARC64 syscall trap. */ |
| 798 | fprintf(stderr,"syscall: Linux/SPARC64 not supported yet\n"); |
| 799 | return -1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 800 | case 0x91d02000: |
| 801 | /* SunOS syscall trap. (pers 1) */ |
| 802 | fprintf(stderr,"syscall: SunOS no support\n"); |
| 803 | return -1; |
| 804 | case 0x91d02008: |
| 805 | /* Solaris 2.x syscall trap. (per 2) */ |
| 806 | set_personality(1); |
| 807 | break; |
| 808 | case 0x91d02009: |
| 809 | /* NetBSD/FreeBSD syscall trap. */ |
| 810 | fprintf(stderr,"syscall: NetBSD/FreeBSD not supported\n"); |
| 811 | return -1; |
| 812 | case 0x91d02027: |
| 813 | /* Solaris 2.x gettimeofday */ |
| 814 | set_personality(1); |
| 815 | break; |
| 816 | default: |
| 817 | /* Unknown syscall trap. */ |
| 818 | if(tcp->flags & TCB_WAITEXECVE) { |
| 819 | tcp->flags &= ~TCB_WAITEXECVE; |
| 820 | return 0; |
| 821 | } |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 822 | fprintf(stderr,"syscall: unknown syscall trap %08x %08x\n", trap, regs.r_pc); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 823 | return -1; |
| 824 | } |
| 825 | |
| 826 | /* Extract the system call number from the registers. */ |
| 827 | if (trap == 0x91d02027) |
| 828 | scno = 156; |
| 829 | else |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 830 | scno = regs.r_g1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 831 | if (scno == 0) { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 832 | scno = regs.r_o0; |
| 833 | memmove (®s.r_o0, ®s.r_o1, 7*sizeof(regs.r_o0)); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 834 | } |
| 835 | } |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 836 | #elif defined(HPPA) |
| 837 | if (upeek(pid, PT_GR20, &scno) < 0) |
| 838 | return -1; |
| 839 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 840 | /* Check if we return from execve. */ |
| 841 | if ((tcp->flags & TCB_WAITEXECVE)) { |
| 842 | tcp->flags &= ~TCB_WAITEXECVE; |
| 843 | return 0; |
| 844 | } |
| 845 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 846 | #endif |
| 847 | #endif /* LINUX */ |
| 848 | #ifdef SUNOS4 |
| 849 | if (upeek(pid, uoff(u_arg[7]), &scno) < 0) |
| 850 | return -1; |
| 851 | #endif |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 852 | #ifdef USE_PROCFS |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 853 | #ifdef HAVE_PR_SYSCALL |
John Hughes | 2529971 | 2001-03-06 10:10:06 +0000 | [diff] [blame] | 854 | scno = tcp->status.PR_SYSCALL; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 855 | #else /* !HAVE_PR_SYSCALL */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 856 | #ifndef FREEBSD |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 857 | scno = tcp->status.PR_WHAT; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 858 | #else /* FREEBSD */ |
| 859 | if (pread(tcp->pfd_reg, ®s, sizeof(regs), 0) < 0) { |
| 860 | perror("pread"); |
| 861 | return -1; |
| 862 | } |
| 863 | switch (regs.r_eax) { |
| 864 | case SYS_syscall: |
| 865 | case SYS___syscall: |
| 866 | pread(tcp->pfd, &scno, sizeof(scno), regs.r_esp + sizeof(int)); |
| 867 | break; |
| 868 | default: |
| 869 | scno = regs.r_eax; |
| 870 | break; |
| 871 | } |
| 872 | #endif /* FREEBSD */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 873 | #endif /* !HAVE_PR_SYSCALL */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 874 | #endif /* USE_PROCFS */ |
Wichert Akkerman | 5ae21ea | 2000-05-01 01:53:59 +0000 | [diff] [blame] | 875 | if (!(tcp->flags & TCB_INSYSCALL)) |
| 876 | tcp->scno = scno; |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 877 | return 1; |
| 878 | } |
| 879 | |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 880 | |
| 881 | int |
| 882 | syscall_fixup(tcp) |
| 883 | struct tcb *tcp; |
| 884 | { |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 885 | #ifndef USE_PROCFS |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 886 | int pid = tcp->pid; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 887 | #else /* USE_PROCFS */ |
| 888 | int scno = tcp->scno; |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 889 | |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 890 | if (!(tcp->flags & TCB_INSYSCALL)) { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 891 | if (tcp->status.PR_WHY != PR_SYSENTRY) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 892 | if ( |
| 893 | scno == SYS_fork |
| 894 | #ifdef SYS_vfork |
| 895 | || scno == SYS_vfork |
| 896 | #endif /* SYS_vfork */ |
John Hughes | 4e36a81 | 2001-04-18 15:11:51 +0000 | [diff] [blame] | 897 | #ifdef SYS_fork1 |
| 898 | || scno == SYS_fork1 |
| 899 | #endif /* SYS_fork1 */ |
| 900 | #ifdef SYS_forkall |
| 901 | || scno == SYS_forkall |
| 902 | #endif /* SYS_forkall */ |
| 903 | #ifdef SYS_rfork1 |
| 904 | || scno == SYS_rfork1 |
| 905 | #endif /* SYS_fork1 */ |
| 906 | #ifdef SYS_rforkall |
| 907 | || scno == SYS_rforkall |
| 908 | #endif /* SYS_rforkall */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 909 | ) { |
| 910 | /* We are returning in the child, fake it. */ |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 911 | tcp->status.PR_WHY = PR_SYSENTRY; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 912 | trace_syscall(tcp); |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 913 | tcp->status.PR_WHY = PR_SYSEXIT; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 914 | } |
| 915 | else { |
| 916 | fprintf(stderr, "syscall: missing entry\n"); |
| 917 | tcp->flags |= TCB_INSYSCALL; |
| 918 | } |
| 919 | } |
| 920 | } |
| 921 | else { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 922 | if (tcp->status.PR_WHY != PR_SYSEXIT) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 923 | fprintf(stderr, "syscall: missing exit\n"); |
| 924 | tcp->flags &= ~TCB_INSYSCALL; |
| 925 | } |
| 926 | } |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 927 | #endif /* USE_PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 928 | #ifdef SUNOS4 |
| 929 | if (!(tcp->flags & TCB_INSYSCALL)) { |
| 930 | if (scno == 0) { |
| 931 | fprintf(stderr, "syscall: missing entry\n"); |
| 932 | tcp->flags |= TCB_INSYSCALL; |
| 933 | } |
| 934 | } |
| 935 | else { |
| 936 | if (scno != 0) { |
| 937 | if (debug) { |
| 938 | /* |
| 939 | * This happens when a signal handler |
| 940 | * for a signal which interrupted a |
| 941 | * a system call makes another system call. |
| 942 | */ |
| 943 | fprintf(stderr, "syscall: missing exit\n"); |
| 944 | } |
| 945 | tcp->flags &= ~TCB_INSYSCALL; |
| 946 | } |
| 947 | } |
| 948 | #endif /* SUNOS4 */ |
| 949 | #ifdef LINUX |
| 950 | #if defined (I386) |
| 951 | if (upeek(pid, 4*EAX, &eax) < 0) |
| 952 | return -1; |
| 953 | if (eax != -ENOSYS && !(tcp->flags & TCB_INSYSCALL)) { |
| 954 | if (debug) |
| 955 | fprintf(stderr, "stray syscall exit: eax = %ld\n", eax); |
| 956 | return 0; |
| 957 | } |
Wichert Akkerman | 12f75d1 | 2000-02-14 16:23:40 +0000 | [diff] [blame] | 958 | #elif defined (S390) |
| 959 | if (upeek(pid, PT_GPR2, &gpr2) < 0) |
| 960 | return -1; |
| 961 | if (gpr2 != -ENOSYS && !(tcp->flags & TCB_INSYSCALL)) { |
| 962 | if (debug) |
| 963 | fprintf(stderr, "stray syscall exit: gpr2 = %ld\n", gpr2); |
| 964 | return 0; |
| 965 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 966 | #elif defined (POWERPC) |
| 967 | # define SO_MASK 0x10000000 |
| 968 | if (upeek(pid, 4*PT_CCR, &flags) < 0) |
| 969 | return -1; |
| 970 | if (upeek(pid, 4*PT_R3, &result) < 0) |
| 971 | return -1; |
| 972 | if (flags & SO_MASK) |
| 973 | result = -result; |
| 974 | #elif defined (M68K) |
| 975 | if (upeek(pid, 4*PT_D0, &d0) < 0) |
| 976 | return -1; |
| 977 | if (d0 != -ENOSYS && !(tcp->flags & TCB_INSYSCALL)) { |
| 978 | if (debug) |
| 979 | fprintf(stderr, "stray syscall exit: d0 = %ld\n", d0); |
| 980 | return 0; |
| 981 | } |
| 982 | #elif defined (ARM) |
| 983 | if (upeek(pid, 4*0, (long *)&r0) < 0) |
| 984 | return -1; |
| 985 | if ( 0 && r0 != -ENOSYS && !(tcp->flags & TCB_INSYSCALL)) { |
| 986 | if (debug) |
| 987 | fprintf(stderr, "stray syscall exit: d0 = %ld\n", r0); |
| 988 | return 0; |
| 989 | } |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 990 | #elif defined (HPPA) |
| 991 | if (upeek(pid, PT_GR28, &r28) < 0) |
| 992 | return -1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 993 | #endif |
| 994 | #endif /* LINUX */ |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 995 | return 1; |
| 996 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 997 | |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 998 | int |
| 999 | get_error(tcp) |
| 1000 | struct tcb *tcp; |
| 1001 | { |
| 1002 | int u_error = 0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1003 | #ifdef LINUX |
Wichert Akkerman | 12f75d1 | 2000-02-14 16:23:40 +0000 | [diff] [blame] | 1004 | #ifdef S390 |
| 1005 | if (gpr2 && (unsigned) -gpr2 < nerrnos) { |
| 1006 | tcp->u_rval = -1; |
| 1007 | u_error = -gpr2; |
| 1008 | } |
| 1009 | else { |
| 1010 | tcp->u_rval = gpr2; |
| 1011 | u_error = 0; |
| 1012 | } |
| 1013 | #else /* !S390 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1014 | #ifdef I386 |
| 1015 | if (eax < 0 && -eax < nerrnos) { |
| 1016 | tcp->u_rval = -1; |
| 1017 | u_error = -eax; |
| 1018 | } |
| 1019 | else { |
| 1020 | tcp->u_rval = eax; |
| 1021 | u_error = 0; |
| 1022 | } |
| 1023 | #else /* !I386 */ |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1024 | #ifdef IA64 |
| 1025 | if (ia32) { |
| 1026 | int err; |
| 1027 | |
| 1028 | err = (int)r8; |
| 1029 | if (err < 0 && -err < nerrnos) { |
| 1030 | tcp->u_rval = -1; |
| 1031 | u_error = -err; |
| 1032 | } |
| 1033 | else { |
| 1034 | tcp->u_rval = err; |
| 1035 | u_error = 0; |
| 1036 | } |
| 1037 | } else { |
| 1038 | if (r10) { |
| 1039 | tcp->u_rval = -1; |
| 1040 | u_error = r8; |
| 1041 | } else { |
| 1042 | tcp->u_rval = r8; |
| 1043 | u_error = 0; |
| 1044 | } |
| 1045 | } |
| 1046 | #else /* !IA64 */ |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 1047 | #ifdef MIPS |
| 1048 | if (a3) { |
| 1049 | tcp->u_rval = -1; |
| 1050 | u_error = r2; |
| 1051 | } else { |
| 1052 | tcp->u_rval = r2; |
| 1053 | u_error = 0; |
| 1054 | } |
| 1055 | #else |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1056 | #ifdef POWERPC |
| 1057 | if (result && (unsigned) -result < nerrnos) { |
| 1058 | tcp->u_rval = -1; |
| 1059 | u_error = -result; |
| 1060 | } |
| 1061 | else { |
| 1062 | tcp->u_rval = result; |
| 1063 | u_error = 0; |
| 1064 | } |
| 1065 | #else /* !POWERPC */ |
| 1066 | #ifdef M68K |
| 1067 | if (d0 && (unsigned) -d0 < nerrnos) { |
| 1068 | tcp->u_rval = -1; |
| 1069 | u_error = -d0; |
| 1070 | } |
| 1071 | else { |
| 1072 | tcp->u_rval = d0; |
| 1073 | u_error = 0; |
| 1074 | } |
| 1075 | #else /* !M68K */ |
| 1076 | #ifdef ARM |
| 1077 | if (r0 && (unsigned) -r0 < nerrnos) { |
| 1078 | tcp->u_rval = -1; |
| 1079 | u_error = -r0; |
| 1080 | } |
| 1081 | else { |
| 1082 | tcp->u_rval = r0; |
| 1083 | u_error = 0; |
| 1084 | } |
| 1085 | #else /* !ARM */ |
| 1086 | #ifdef ALPHA |
| 1087 | if (a3) { |
| 1088 | tcp->u_rval = -1; |
| 1089 | u_error = r0; |
| 1090 | } |
| 1091 | else { |
| 1092 | tcp->u_rval = r0; |
| 1093 | u_error = 0; |
| 1094 | } |
| 1095 | #else /* !ALPHA */ |
| 1096 | #ifdef SPARC |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1097 | if (regs.r_psr & PSR_C) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1098 | tcp->u_rval = -1; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1099 | u_error = regs.r_o0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1100 | } |
| 1101 | else { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1102 | tcp->u_rval = regs.r_o0; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1103 | u_error = 0; |
| 1104 | } |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 1105 | #else /* !SPARC */ |
| 1106 | #ifdef HPPA |
| 1107 | if (r28 && (unsigned) -r28 < nerrnos) { |
| 1108 | tcp->u_rval = -1; |
| 1109 | u_error = -r28; |
| 1110 | } |
| 1111 | else { |
| 1112 | tcp->u_rval = r28; |
| 1113 | u_error = 0; |
| 1114 | } |
| 1115 | #endif /* HPPA */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1116 | #endif /* SPARC */ |
| 1117 | #endif /* ALPHA */ |
| 1118 | #endif /* ARM */ |
| 1119 | #endif /* M68K */ |
| 1120 | #endif /* POWERPC */ |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 1121 | #endif /* MIPS */ |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1122 | #endif /* IA64 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1123 | #endif /* I386 */ |
Wichert Akkerman | 12f75d1 | 2000-02-14 16:23:40 +0000 | [diff] [blame] | 1124 | #endif /* S390 */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1125 | #endif /* LINUX */ |
| 1126 | #ifdef SUNOS4 |
| 1127 | /* get error code from user struct */ |
| 1128 | if (upeek(pid, uoff(u_error), &u_error) < 0) |
| 1129 | return -1; |
| 1130 | u_error >>= 24; /* u_error is a char */ |
| 1131 | |
| 1132 | /* get system call return value */ |
| 1133 | if (upeek(pid, uoff(u_rval1), &tcp->u_rval) < 0) |
| 1134 | return -1; |
| 1135 | #endif /* SUNOS4 */ |
| 1136 | #ifdef SVR4 |
| 1137 | #ifdef SPARC |
| 1138 | /* Judicious guessing goes a long way. */ |
| 1139 | if (tcp->status.pr_reg[R_PSR] & 0x100000) { |
| 1140 | tcp->u_rval = -1; |
| 1141 | u_error = tcp->status.pr_reg[R_O0]; |
| 1142 | } |
| 1143 | else { |
| 1144 | tcp->u_rval = tcp->status.pr_reg[R_O0]; |
| 1145 | u_error = 0; |
| 1146 | } |
| 1147 | #endif /* SPARC */ |
| 1148 | #ifdef I386 |
| 1149 | /* Wanna know how to kill an hour single-stepping? */ |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1150 | if (tcp->status.PR_REG[EFL] & 0x1) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1151 | tcp->u_rval = -1; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1152 | u_error = tcp->status.PR_REG[EAX]; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1153 | } |
| 1154 | else { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1155 | tcp->u_rval = tcp->status.PR_REG[EAX]; |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 1156 | #ifdef HAVE_LONG_LONG |
| 1157 | tcp->u_lrval = |
| 1158 | ((unsigned long long) tcp->status.PR_REG[EDX] << 32) + |
| 1159 | tcp->status.PR_REG[EAX]; |
| 1160 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1161 | u_error = 0; |
| 1162 | } |
| 1163 | #endif /* I386 */ |
| 1164 | #ifdef MIPS |
| 1165 | if (tcp->status.pr_reg[CTX_A3]) { |
| 1166 | tcp->u_rval = -1; |
| 1167 | u_error = tcp->status.pr_reg[CTX_V0]; |
| 1168 | } |
| 1169 | else { |
| 1170 | tcp->u_rval = tcp->status.pr_reg[CTX_V0]; |
| 1171 | u_error = 0; |
| 1172 | } |
| 1173 | #endif /* MIPS */ |
| 1174 | #endif /* SVR4 */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1175 | #ifdef FREEBSD |
| 1176 | if (regs.r_eflags & PSL_C) { |
| 1177 | tcp->u_rval = -1; |
| 1178 | u_error = regs.r_eax; |
| 1179 | } else { |
| 1180 | tcp->u_rval = regs.r_eax; |
| 1181 | tcp->u_lrval = |
| 1182 | ((unsigned long long) regs.r_edx << 32) + regs.r_eax; |
| 1183 | u_error = 0; |
| 1184 | } |
| 1185 | #endif /* FREEBSD */ |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1186 | tcp->u_error = u_error; |
| 1187 | return 1; |
| 1188 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1189 | |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1190 | int syscall_enter(tcp) |
| 1191 | struct tcb *tcp; |
| 1192 | { |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1193 | #ifndef USE_PROCFS |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1194 | int pid = tcp->pid; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1195 | #endif /* !USE_PROCFS */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1196 | #ifdef LINUX |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 1197 | #if defined(S390) |
| 1198 | { |
| 1199 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1200 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1201 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1202 | else |
| 1203 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 4dc8a2a | 1999-12-23 14:20:14 +0000 | [diff] [blame] | 1204 | for (i = 0; i < tcp->u_nargs; i++) { |
| 1205 | if (upeek(pid,i==0 ? PT_ORIGGPR2:PT_GPR2+(i<<2), &tcp->u_arg[i]) < 0) |
| 1206 | return -1; |
| 1207 | } |
| 1208 | } |
| 1209 | #elif defined (ALPHA) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1210 | { |
| 1211 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1212 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1213 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1214 | else |
| 1215 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1216 | for (i = 0; i < tcp->u_nargs; i++) { |
Wichert Akkerman | b859bea | 1999-04-18 22:50:50 +0000 | [diff] [blame] | 1217 | /* WTA: if scno is out-of-bounds this will bomb. Add range-check |
| 1218 | * for scno somewhere above here! |
| 1219 | */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1220 | if (upeek(pid, REG_A0+i, &tcp->u_arg[i]) < 0) |
| 1221 | return -1; |
| 1222 | } |
| 1223 | } |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1224 | #elif defined (IA64) |
| 1225 | { |
Wichert Akkerman | 5ae21ea | 2000-05-01 01:53:59 +0000 | [diff] [blame] | 1226 | unsigned long *bsp, cfm, i; |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1227 | |
| 1228 | if (upeek(pid, PT_AR_BSP, (long *) &bsp) < 0) |
| 1229 | return -1; |
Wichert Akkerman | 5ae21ea | 2000-05-01 01:53:59 +0000 | [diff] [blame] | 1230 | if (upeek(pid, PT_CFM, (long *) &cfm) < 0) |
| 1231 | return -1; |
| 1232 | |
| 1233 | bsp = ia64_rse_skip_regs(bsp, -(cfm & 0x7f)); |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1234 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1235 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1236 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1237 | else |
| 1238 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 8b1b40c | 2000-02-03 21:58:30 +0000 | [diff] [blame] | 1239 | for (i = 0; i < tcp->u_nargs; ++i) { |
| 1240 | if (umoven(tcp, (unsigned long) ia64_rse_skip_regs(bsp, i), sizeof(long), |
| 1241 | (char *) &tcp->u_arg[i]) |
| 1242 | < 0) |
| 1243 | return -1; |
| 1244 | } |
| 1245 | } |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 1246 | #elif defined (MIPS) |
| 1247 | { |
| 1248 | long sp; |
| 1249 | int i, nargs; |
| 1250 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1251 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1252 | nargs = tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1253 | else |
| 1254 | nargs = tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | f90da01 | 1999-10-31 21:15:38 +0000 | [diff] [blame] | 1255 | if(nargs > 4) { |
| 1256 | if(upeek(pid, REG_SP, &sp) < 0) |
| 1257 | return -1; |
| 1258 | for(i = 0; i < 4; i++) { |
| 1259 | if (upeek(pid, REG_A0 + i, &tcp->u_arg[i])<0) |
| 1260 | return -1; |
| 1261 | } |
| 1262 | umoven(tcp, sp+16, (nargs-4) * sizeof(tcp->u_arg[0]), |
| 1263 | (char *)(tcp->u_arg + 4)); |
| 1264 | } else { |
| 1265 | for(i = 0; i < nargs; i++) { |
| 1266 | if (upeek(pid, REG_A0 + i, &tcp->u_arg[i]) < 0) |
| 1267 | return -1; |
| 1268 | } |
| 1269 | } |
| 1270 | } |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1271 | #elif defined (POWERPC) |
| 1272 | { |
| 1273 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1274 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1275 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1276 | else |
| 1277 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1278 | for (i = 0; i < tcp->u_nargs; i++) { |
| 1279 | if (upeek(pid, (i==0) ? (4*PT_ORIG_R3) : ((i+PT_R3)*4), &tcp->u_arg[i]) < 0) |
| 1280 | return -1; |
| 1281 | } |
| 1282 | } |
| 1283 | #elif defined (SPARC) |
| 1284 | { |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1285 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1286 | |
| 1287 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1288 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1289 | else |
| 1290 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1291 | for (i = 0; i < tcp->u_nargs; i++) |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1292 | tcp->u_arg[i] = *((®s.r_o0) + i); |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1293 | } |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 1294 | #elif defined (HPPA) |
| 1295 | { |
| 1296 | int i; |
| 1297 | |
| 1298 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1299 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1300 | else |
| 1301 | tcp->u_nargs = MAX_ARGS; |
| 1302 | for (i = 0; i < tcp->u_nargs; i++) { |
| 1303 | if (upeek(pid, PT_GR26-4*i, &tcp->u_arg[i]) < 0) |
| 1304 | return -1; |
| 1305 | } |
| 1306 | } |
Wichert Akkerman | faf7222 | 2000-02-19 23:59:03 +0000 | [diff] [blame] | 1307 | #else /* Other architecture (like i386) (32bits specific) */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1308 | { |
| 1309 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1310 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1311 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1312 | else |
| 1313 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1314 | for (i = 0; i < tcp->u_nargs; i++) { |
| 1315 | if (upeek(pid, i*4, &tcp->u_arg[i]) < 0) |
| 1316 | return -1; |
| 1317 | } |
| 1318 | } |
| 1319 | #endif |
| 1320 | #endif /* LINUX */ |
| 1321 | #ifdef SUNOS4 |
| 1322 | { |
| 1323 | int i; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1324 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1325 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1326 | else |
| 1327 | tcp->u_nargs = MAX_ARGS; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1328 | for (i = 0; i < tcp->u_nargs; i++) { |
| 1329 | struct user *u; |
| 1330 | |
| 1331 | if (upeek(pid, uoff(u_arg[0]) + |
| 1332 | (i*sizeof(u->u_arg[0])), &tcp->u_arg[i]) < 0) |
| 1333 | return -1; |
| 1334 | } |
| 1335 | } |
| 1336 | #endif /* SUNOS4 */ |
| 1337 | #ifdef SVR4 |
| 1338 | #ifdef MIPS |
| 1339 | /* |
| 1340 | * SGI is broken: even though it has pr_sysarg, it doesn't |
| 1341 | * set them on system call entry. Get a clue. |
| 1342 | */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1343 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1344 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1345 | else |
| 1346 | tcp->u_nargs = tcp->status.pr_nsysarg; |
| 1347 | if (tcp->u_nargs > 4) { |
| 1348 | memcpy(tcp->u_arg, &tcp->status.pr_reg[CTX_A0], |
| 1349 | 4*sizeof(tcp->u_arg[0])); |
| 1350 | umoven(tcp, tcp->status.pr_reg[CTX_SP] + 16, |
| 1351 | (tcp->u_nargs - 4)*sizeof(tcp->u_arg[0]), (char *) (tcp->u_arg + 4)); |
| 1352 | } |
| 1353 | else { |
| 1354 | memcpy(tcp->u_arg, &tcp->status.pr_reg[CTX_A0], |
| 1355 | tcp->u_nargs*sizeof(tcp->u_arg[0])); |
| 1356 | } |
John Hughes | 2529971 | 2001-03-06 10:10:06 +0000 | [diff] [blame] | 1357 | #elif UNIXWARE >= 2 |
| 1358 | /* |
| 1359 | * Like SGI, UnixWare doesn't set pr_sysarg until system call exit |
| 1360 | */ |
| 1361 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
| 1362 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1363 | else |
| 1364 | tcp->u_nargs = tcp->status.pr_lwp.pr_nsysarg; |
| 1365 | umoven(tcp, tcp->status.PR_REG[UESP] + 4, |
| 1366 | tcp->u_nargs*sizeof(tcp->u_arg[0]), (char *) tcp->u_arg); |
| 1367 | #elif defined (HAVE_PR_SYSCALL) |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1368 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1369 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1370 | else |
| 1371 | tcp->u_nargs = tcp->status.pr_nsysarg; |
| 1372 | { |
| 1373 | int i; |
| 1374 | for (i = 0; i < tcp->u_nargs; i++) |
| 1375 | tcp->u_arg[i] = tcp->status.pr_sysarg[i]; |
| 1376 | } |
John Hughes | 2529971 | 2001-03-06 10:10:06 +0000 | [diff] [blame] | 1377 | #elif defined (I386) |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1378 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1379 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1380 | else |
| 1381 | tcp->u_nargs = 5; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1382 | umoven(tcp, tcp->status.PR_REG[UESP] + 4, |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1383 | tcp->u_nargs*sizeof(tcp->u_arg[0]), (char *) tcp->u_arg); |
John Hughes | 2529971 | 2001-03-06 10:10:06 +0000 | [diff] [blame] | 1384 | #else |
| 1385 | I DONT KNOW WHAT TO DO |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1386 | #endif /* !HAVE_PR_SYSCALL */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1387 | #endif /* SVR4 */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1388 | #ifdef FREEBSD |
| 1389 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && |
| 1390 | sysent[tcp->scno].nargs > tcp->status.val) |
| 1391 | tcp->u_nargs = sysent[tcp->scno].nargs; |
| 1392 | else |
| 1393 | tcp->u_nargs = tcp->status.val; |
| 1394 | if (tcp->u_nargs < 0) |
| 1395 | tcp->u_nargs = 0; |
| 1396 | if (tcp->u_nargs > MAX_ARGS) |
| 1397 | tcp->u_nargs = MAX_ARGS; |
| 1398 | switch(regs.r_eax) { |
| 1399 | case SYS___syscall: |
| 1400 | pread(tcp->pfd, &tcp->u_arg, tcp->u_nargs * sizeof(unsigned long), |
| 1401 | regs.r_esp + sizeof(int) + sizeof(quad_t)); |
| 1402 | break; |
| 1403 | case SYS_syscall: |
| 1404 | pread(tcp->pfd, &tcp->u_arg, tcp->u_nargs * sizeof(unsigned long), |
| 1405 | regs.r_esp + 2 * sizeof(int)); |
| 1406 | break; |
| 1407 | default: |
| 1408 | pread(tcp->pfd, &tcp->u_arg, tcp->u_nargs * sizeof(unsigned long), |
| 1409 | regs.r_esp + sizeof(int)); |
| 1410 | break; |
| 1411 | } |
| 1412 | #endif /* FREEBSD */ |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1413 | return 1; |
| 1414 | } |
| 1415 | |
| 1416 | int |
| 1417 | trace_syscall(tcp) |
| 1418 | struct tcb *tcp; |
| 1419 | { |
| 1420 | int sys_res; |
| 1421 | struct timeval tv; |
| 1422 | int res; |
| 1423 | |
| 1424 | /* Measure the exit time as early as possible to avoid errors. */ |
| 1425 | if (dtime && (tcp->flags & TCB_INSYSCALL)) |
| 1426 | gettimeofday(&tv, NULL); |
| 1427 | |
| 1428 | res = get_scno(tcp); |
| 1429 | if (res != 1) |
| 1430 | return res; |
| 1431 | |
| 1432 | res = syscall_fixup(tcp); |
| 1433 | if (res != 1) |
| 1434 | return res; |
| 1435 | |
| 1436 | if (tcp->flags & TCB_INSYSCALL) { |
| 1437 | long u_error; |
| 1438 | res = get_error(tcp); |
| 1439 | if (res != 1) |
| 1440 | return res; |
| 1441 | u_error = tcp->u_error; |
| 1442 | |
| 1443 | |
| 1444 | internal_syscall(tcp); |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1445 | if (tcp->scno >= 0 && tcp->scno < nsyscalls && |
| 1446 | !(qual_flags[tcp->scno] & QUAL_TRACE)) { |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1447 | tcp->flags &= ~TCB_INSYSCALL; |
| 1448 | return 0; |
| 1449 | } |
| 1450 | |
| 1451 | if (tcp->flags & TCB_REPRINT) { |
| 1452 | printleader(tcp); |
| 1453 | tprintf("<... "); |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1454 | if (tcp->scno >= nsyscalls || tcp->scno < 0) |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1455 | tprintf("syscall_%lu", tcp->scno); |
| 1456 | else |
| 1457 | tprintf("%s", sysent[tcp->scno].sys_name); |
| 1458 | tprintf(" resumed> "); |
| 1459 | } |
| 1460 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1461 | if (cflag && tcp->scno < nsyscalls && tcp->scno >= 0) { |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1462 | call_count[tcp->scno]++; |
| 1463 | if (tcp->u_error) |
| 1464 | error_count[tcp->scno]++; |
| 1465 | tv_sub(&tv, &tv, &tcp->etime); |
| 1466 | #ifdef LINUX |
| 1467 | if (tv_cmp(&tv, &tcp->dtime) > 0) { |
| 1468 | static struct timeval one_tick = |
| 1469 | { 0, 1000000 / HZ }; |
| 1470 | |
| 1471 | if (tv_nz(&tcp->dtime)) |
| 1472 | tv = tcp->dtime; |
| 1473 | else if (tv_cmp(&tv, &one_tick) > 0) { |
| 1474 | if (tv_cmp(&shortest, &one_tick) < 0) |
| 1475 | tv = shortest; |
| 1476 | else |
| 1477 | tv = one_tick; |
| 1478 | } |
| 1479 | } |
| 1480 | #endif /* LINUX */ |
| 1481 | if (tv_cmp(&tv, &shortest) < 0) |
| 1482 | shortest = tv; |
| 1483 | tv_add(&tv_count[tcp->scno], |
| 1484 | &tv_count[tcp->scno], &tv); |
| 1485 | tcp->flags &= ~TCB_INSYSCALL; |
| 1486 | return 0; |
| 1487 | } |
| 1488 | |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1489 | if (tcp->scno >= nsyscalls || tcp->scno < 0 |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1490 | || (qual_flags[tcp->scno] & QUAL_RAW)) |
| 1491 | sys_res = printargs(tcp); |
| 1492 | else |
| 1493 | sys_res = (*sysent[tcp->scno].sys_func)(tcp); |
| 1494 | u_error = tcp->u_error; |
| 1495 | tprintf(") "); |
| 1496 | tabto(acolumn); |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1497 | if (tcp->scno >= nsyscalls || tcp->scno < 0 || |
| 1498 | qual_flags[tcp->scno] & QUAL_RAW) { |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1499 | if (u_error) |
| 1500 | tprintf("= -1 (errno %ld)", u_error); |
| 1501 | else |
| 1502 | tprintf("= %#lx", tcp->u_rval); |
| 1503 | } |
| 1504 | else if (!(sys_res & RVAL_NONE) && u_error) { |
| 1505 | switch (u_error) { |
| 1506 | #ifdef LINUX |
| 1507 | case ERESTARTSYS: |
| 1508 | tprintf("= ? ERESTARTSYS (To be restarted)"); |
| 1509 | break; |
| 1510 | case ERESTARTNOINTR: |
| 1511 | tprintf("= ? ERESTARTNOINTR (To be restarted)"); |
| 1512 | break; |
| 1513 | case ERESTARTNOHAND: |
| 1514 | tprintf("= ? ERESTARTNOHAND (To be restarted)"); |
| 1515 | break; |
| 1516 | #endif /* LINUX */ |
| 1517 | default: |
| 1518 | tprintf("= -1 "); |
| 1519 | if (u_error < nerrnos && u_error < sys_nerr) |
| 1520 | tprintf("%s (%s)", errnoent[u_error], |
| 1521 | sys_errlist[u_error]); |
| 1522 | else if (u_error < nerrnos) |
| 1523 | tprintf("%s (errno %ld)", |
| 1524 | errnoent[u_error], u_error); |
| 1525 | else if (u_error < sys_nerr) |
| 1526 | tprintf("ERRNO_%ld (%s)", u_error, |
| 1527 | sys_errlist[u_error]); |
| 1528 | else |
| 1529 | tprintf("E??? (errno %ld)", u_error); |
| 1530 | break; |
| 1531 | } |
| 1532 | } |
| 1533 | else { |
| 1534 | if (sys_res & RVAL_NONE) |
| 1535 | tprintf("= ?"); |
| 1536 | else { |
| 1537 | switch (sys_res & RVAL_MASK) { |
| 1538 | case RVAL_HEX: |
| 1539 | tprintf("= %#lx", tcp->u_rval); |
| 1540 | break; |
| 1541 | case RVAL_OCTAL: |
| 1542 | tprintf("= %#lo", tcp->u_rval); |
| 1543 | break; |
| 1544 | case RVAL_UDECIMAL: |
| 1545 | tprintf("= %lu", tcp->u_rval); |
| 1546 | break; |
| 1547 | case RVAL_DECIMAL: |
| 1548 | tprintf("= %ld", tcp->u_rval); |
| 1549 | break; |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 1550 | #ifdef HAVE_LONG_LONG |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1551 | case RVAL_LHEX: |
| 1552 | tprintf("= %#llx", tcp->u_lrval); |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 1553 | break; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1554 | case RVAL_LOCTAL: |
| 1555 | tprintf("= %#llo", tcp->u_lrval); |
| 1556 | break; |
| 1557 | case RVAL_LUDECIMAL: |
| 1558 | tprintf("= %llu", tcp->u_lrval); |
| 1559 | break; |
| 1560 | case RVAL_LDECIMAL: |
| 1561 | tprintf("= %lld", tcp->u_lrval); |
| 1562 | break; |
Wichert Akkerman | 16a03d2 | 2000-08-10 02:14:04 +0000 | [diff] [blame] | 1563 | #endif |
Pavel Machek | 4dc3b14 | 2000-02-01 17:58:41 +0000 | [diff] [blame] | 1564 | default: |
| 1565 | fprintf(stderr, |
| 1566 | "invalid rval format\n"); |
| 1567 | break; |
| 1568 | } |
| 1569 | } |
| 1570 | if ((sys_res & RVAL_STR) && tcp->auxstr) |
| 1571 | tprintf(" (%s)", tcp->auxstr); |
| 1572 | } |
| 1573 | if (dtime) { |
| 1574 | tv_sub(&tv, &tv, &tcp->etime); |
| 1575 | tprintf(" <%ld.%06ld>", |
| 1576 | (long) tv.tv_sec, (long) tv.tv_usec); |
| 1577 | } |
| 1578 | printtrailer(tcp); |
| 1579 | |
| 1580 | dumpio(tcp); |
| 1581 | if (fflush(tcp->outf) == EOF) |
| 1582 | return -1; |
| 1583 | tcp->flags &= ~TCB_INSYSCALL; |
| 1584 | return 0; |
| 1585 | } |
| 1586 | |
| 1587 | /* Entering system call */ |
| 1588 | res = syscall_enter(tcp); |
| 1589 | if (res != 1) |
| 1590 | return res; |
| 1591 | |
Pavel Machek | d8ae7e3 | 2000-02-01 17:17:25 +0000 | [diff] [blame] | 1592 | switch (tcp->scno + NR_SYSCALL_BASE) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1593 | #ifdef LINUX |
Wichert Akkerman | c1652e2 | 2001-03-27 12:17:16 +0000 | [diff] [blame] | 1594 | #if !defined (ALPHA) && !defined(IA64) && !defined(SPARC) && !defined(MIPS) && !defined(HPPA) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1595 | case SYS_socketcall: |
| 1596 | decode_subcall(tcp, SYS_socket_subcall, |
| 1597 | SYS_socket_nsubcalls, deref_style); |
| 1598 | break; |
| 1599 | case SYS_ipc: |
| 1600 | decode_subcall(tcp, SYS_ipc_subcall, |
| 1601 | SYS_ipc_nsubcalls, shift_style); |
| 1602 | break; |
Wichert Akkerman | 12f75d1 | 2000-02-14 16:23:40 +0000 | [diff] [blame] | 1603 | #endif /* !ALPHA && !IA64 && !MIPS && !SPARC */ |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1604 | #ifdef SPARC |
| 1605 | case SYS_socketcall: |
| 1606 | sparc_socket_decode (tcp); |
| 1607 | break; |
| 1608 | #endif |
| 1609 | #endif /* LINUX */ |
| 1610 | #ifdef SVR4 |
| 1611 | #ifdef SYS_pgrpsys_subcall |
| 1612 | case SYS_pgrpsys: |
| 1613 | decode_subcall(tcp, SYS_pgrpsys_subcall, |
| 1614 | SYS_pgrpsys_nsubcalls, shift_style); |
| 1615 | break; |
| 1616 | #endif /* SYS_pgrpsys_subcall */ |
| 1617 | #ifdef SYS_sigcall_subcall |
| 1618 | case SYS_sigcall: |
| 1619 | decode_subcall(tcp, SYS_sigcall_subcall, |
| 1620 | SYS_sigcall_nsubcalls, mask_style); |
| 1621 | break; |
| 1622 | #endif /* SYS_sigcall_subcall */ |
| 1623 | case SYS_msgsys: |
| 1624 | decode_subcall(tcp, SYS_msgsys_subcall, |
| 1625 | SYS_msgsys_nsubcalls, shift_style); |
| 1626 | break; |
| 1627 | case SYS_shmsys: |
| 1628 | decode_subcall(tcp, SYS_shmsys_subcall, |
| 1629 | SYS_shmsys_nsubcalls, shift_style); |
| 1630 | break; |
| 1631 | case SYS_semsys: |
| 1632 | decode_subcall(tcp, SYS_semsys_subcall, |
| 1633 | SYS_semsys_nsubcalls, shift_style); |
| 1634 | break; |
| 1635 | #if 0 /* broken */ |
| 1636 | case SYS_utssys: |
| 1637 | decode_subcall(tcp, SYS_utssys_subcall, |
| 1638 | SYS_utssys_nsubcalls, shift_style); |
| 1639 | break; |
| 1640 | #endif |
| 1641 | case SYS_sysfs: |
| 1642 | decode_subcall(tcp, SYS_sysfs_subcall, |
| 1643 | SYS_sysfs_nsubcalls, shift_style); |
| 1644 | break; |
| 1645 | case SYS_spcall: |
| 1646 | decode_subcall(tcp, SYS_spcall_subcall, |
| 1647 | SYS_spcall_nsubcalls, shift_style); |
| 1648 | break; |
| 1649 | #ifdef SYS_context_subcall |
| 1650 | case SYS_context: |
| 1651 | decode_subcall(tcp, SYS_context_subcall, |
| 1652 | SYS_context_nsubcalls, shift_style); |
| 1653 | break; |
| 1654 | #endif /* SYS_context_subcall */ |
Wichert Akkerman | 8829a55 | 1999-06-11 13:18:40 +0000 | [diff] [blame] | 1655 | #ifdef SYS_door_subcall |
| 1656 | case SYS_door: |
| 1657 | decode_subcall(tcp, SYS_door_subcall, |
| 1658 | SYS_door_nsubcalls, door_style); |
| 1659 | break; |
| 1660 | #endif /* SYS_door_subcall */ |
John Hughes | bdf48f5 | 2001-03-06 15:08:09 +0000 | [diff] [blame] | 1661 | #ifdef SYS_kaio_subcall |
| 1662 | case SYS_kaio: |
| 1663 | decode_subcall(tcp, SYS_kaio_subcall, |
| 1664 | SYS_kaio_nsubcalls, shift_style); |
| 1665 | break; |
| 1666 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1667 | #endif /* SVR4 */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1668 | #ifdef FREEBSD |
| 1669 | case SYS_msgsys: |
| 1670 | case SYS_shmsys: |
| 1671 | case SYS_semsys: |
| 1672 | decode_subcall(tcp, 0, 0, table_style); |
| 1673 | break; |
| 1674 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1675 | #ifdef SUNOS4 |
| 1676 | case SYS_semsys: |
| 1677 | decode_subcall(tcp, SYS_semsys_subcall, |
| 1678 | SYS_semsys_nsubcalls, shift_style); |
| 1679 | break; |
| 1680 | case SYS_msgsys: |
| 1681 | decode_subcall(tcp, SYS_msgsys_subcall, |
| 1682 | SYS_msgsys_nsubcalls, shift_style); |
| 1683 | break; |
| 1684 | case SYS_shmsys: |
| 1685 | decode_subcall(tcp, SYS_shmsys_subcall, |
| 1686 | SYS_shmsys_nsubcalls, shift_style); |
| 1687 | break; |
| 1688 | #endif |
| 1689 | } |
| 1690 | |
| 1691 | internal_syscall(tcp); |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1692 | if (tcp->scno >=0 && tcp->scno < nsyscalls && !(qual_flags[tcp->scno] & QUAL_TRACE)) { |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1693 | tcp->flags |= TCB_INSYSCALL; |
| 1694 | return 0; |
| 1695 | } |
| 1696 | |
| 1697 | if (cflag) { |
| 1698 | gettimeofday(&tcp->etime, NULL); |
| 1699 | tcp->flags |= TCB_INSYSCALL; |
| 1700 | return 0; |
| 1701 | } |
| 1702 | |
| 1703 | printleader(tcp); |
| 1704 | tcp->flags &= ~TCB_REPRINT; |
| 1705 | tcp_last = tcp; |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1706 | if (tcp->scno >= nsyscalls || tcp->scno < 0) |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1707 | tprintf("syscall_%lu(", tcp->scno); |
| 1708 | else |
| 1709 | tprintf("%s(", sysent[tcp->scno].sys_name); |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1710 | if (tcp->scno >= nsyscalls || tcp->scno < 0 || |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1711 | ((qual_flags[tcp->scno] & QUAL_RAW) && tcp->scno != SYS_exit)) |
| 1712 | sys_res = printargs(tcp); |
| 1713 | else |
| 1714 | sys_res = (*sysent[tcp->scno].sys_func)(tcp); |
| 1715 | if (fflush(tcp->outf) == EOF) |
| 1716 | return -1; |
| 1717 | tcp->flags |= TCB_INSYSCALL; |
| 1718 | /* Measure the entrance time as late as possible to avoid errors. */ |
| 1719 | if (dtime) |
| 1720 | gettimeofday(&tcp->etime, NULL); |
| 1721 | return sys_res; |
| 1722 | } |
| 1723 | |
| 1724 | int |
| 1725 | printargs(tcp) |
| 1726 | struct tcb *tcp; |
| 1727 | { |
| 1728 | if (entering(tcp)) { |
| 1729 | int i; |
| 1730 | |
| 1731 | for (i = 0; i < tcp->u_nargs; i++) |
| 1732 | tprintf("%s%#lx", i ? ", " : "", tcp->u_arg[i]); |
| 1733 | } |
| 1734 | return 0; |
| 1735 | } |
| 1736 | |
| 1737 | long |
| 1738 | getrval2(tcp) |
| 1739 | struct tcb *tcp; |
| 1740 | { |
| 1741 | long val = -1; |
| 1742 | |
| 1743 | #ifdef LINUX |
| 1744 | #ifdef SPARC |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1745 | struct regs regs; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1746 | if (ptrace(PTRACE_GETREGS,tcp->pid,(char *)®s,0) < 0) |
| 1747 | return -1; |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1748 | val = regs.r_o1; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1749 | #endif /* SPARC */ |
| 1750 | #endif /* LINUX */ |
| 1751 | |
| 1752 | #ifdef SUNOS4 |
| 1753 | if (upeek(tcp->pid, uoff(u_rval2), &val) < 0) |
| 1754 | return -1; |
| 1755 | #endif /* SUNOS4 */ |
| 1756 | |
| 1757 | #ifdef SVR4 |
| 1758 | #ifdef SPARC |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1759 | val = tcp->status.PR_REG[R_O1]; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1760 | #endif /* SPARC */ |
| 1761 | #ifdef I386 |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1762 | val = tcp->status.PR_REG[EDX]; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1763 | #endif /* I386 */ |
| 1764 | #ifdef MIPS |
Wichert Akkerman | 9ce1a63 | 1999-08-29 23:15:07 +0000 | [diff] [blame] | 1765 | val = tcp->status.PR_REG[CTX_V1]; |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1766 | #endif /* MIPS */ |
| 1767 | #endif /* SVR4 */ |
Wichert Akkerman | bf79f2e | 2000-09-01 21:03:06 +0000 | [diff] [blame] | 1768 | #ifdef FREEBSD |
| 1769 | struct reg regs; |
| 1770 | pread(tcp->pfd_reg, ®s, sizeof(regs), 0); |
| 1771 | val = regs.r_edx; |
| 1772 | #endif |
Wichert Akkerman | 76baf7c | 1999-02-19 00:21:36 +0000 | [diff] [blame] | 1773 | return val; |
| 1774 | } |
| 1775 | |
| 1776 | /* |
| 1777 | * Apparently, indirect system calls have already be converted by ptrace(2), |
| 1778 | * so if you see "indir" this program has gone astray. |
| 1779 | */ |
| 1780 | int |
| 1781 | sys_indir(tcp) |
| 1782 | struct tcb *tcp; |
| 1783 | { |
| 1784 | int i, scno, nargs; |
| 1785 | |
| 1786 | if (entering(tcp)) { |
| 1787 | if ((scno = tcp->u_arg[0]) > nsyscalls) { |
| 1788 | fprintf(stderr, "Bogus syscall: %u\n", scno); |
| 1789 | return 0; |
| 1790 | } |
| 1791 | nargs = sysent[scno].nargs; |
| 1792 | tprintf("%s", sysent[scno].sys_name); |
| 1793 | for (i = 0; i < nargs; i++) |
| 1794 | tprintf(", %#lx", tcp->u_arg[i+1]); |
| 1795 | } |
| 1796 | return 0; |
| 1797 | } |
| 1798 | |
| 1799 | static int |
| 1800 | time_cmp(a, b) |
| 1801 | void *a; |
| 1802 | void *b; |
| 1803 | { |
| 1804 | return -tv_cmp(&tv_count[*((int *) a)], &tv_count[*((int *) b)]); |
| 1805 | } |
| 1806 | |
| 1807 | static int |
| 1808 | syscall_cmp(a, b) |
| 1809 | void *a; |
| 1810 | void *b; |
| 1811 | { |
| 1812 | return strcmp(sysent[*((int *) a)].sys_name, |
| 1813 | sysent[*((int *) b)].sys_name); |
| 1814 | } |
| 1815 | |
| 1816 | static int |
| 1817 | count_cmp(a, b) |
| 1818 | void *a; |
| 1819 | void *b; |
| 1820 | { |
| 1821 | int m = call_count[*((int *) a)], n = call_count[*((int *) b)]; |
| 1822 | |
| 1823 | return (m < n) ? 1 : (m > n) ? -1 : 0; |
| 1824 | } |
| 1825 | |
| 1826 | static int (*sortfun)(); |
| 1827 | static struct timeval overhead = { -1, -1 }; |
| 1828 | |
| 1829 | void |
| 1830 | set_sortby(sortby) |
| 1831 | char *sortby; |
| 1832 | { |
| 1833 | if (strcmp(sortby, "time") == 0) |
| 1834 | sortfun = time_cmp; |
| 1835 | else if (strcmp(sortby, "calls") == 0) |
| 1836 | sortfun = count_cmp; |
| 1837 | else if (strcmp(sortby, "name") == 0) |
| 1838 | sortfun = syscall_cmp; |
| 1839 | else if (strcmp(sortby, "nothing") == 0) |
| 1840 | sortfun = NULL; |
| 1841 | else { |
| 1842 | fprintf(stderr, "invalid sortby: `%s'\n", sortby); |
| 1843 | exit(1); |
| 1844 | } |
| 1845 | } |
| 1846 | |
| 1847 | void set_overhead(n) |
| 1848 | int n; |
| 1849 | { |
| 1850 | overhead.tv_sec = n / 1000000; |
| 1851 | overhead.tv_usec = n % 1000000; |
| 1852 | } |
| 1853 | |
| 1854 | void |
| 1855 | call_summary(outf) |
| 1856 | FILE *outf; |
| 1857 | { |
| 1858 | int i, j; |
| 1859 | int call_cum, error_cum; |
| 1860 | struct timeval tv_cum, dtv; |
| 1861 | double percent; |
| 1862 | char *dashes = "-------------------------"; |
| 1863 | char error_str[16]; |
| 1864 | |
| 1865 | call_cum = error_cum = tv_cum.tv_sec = tv_cum.tv_usec = 0; |
| 1866 | if (overhead.tv_sec == -1) { |
| 1867 | tv_mul(&overhead, &shortest, 8); |
| 1868 | tv_div(&overhead, &overhead, 10); |
| 1869 | } |
| 1870 | for (i = 0; i < nsyscalls; i++) { |
| 1871 | sorted_count[i] = i; |
| 1872 | if (call_count[i] == 0) |
| 1873 | continue; |
| 1874 | tv_mul(&dtv, &overhead, call_count[i]); |
| 1875 | tv_sub(&tv_count[i], &tv_count[i], &dtv); |
| 1876 | call_cum += call_count[i]; |
| 1877 | error_cum += error_count[i]; |
| 1878 | tv_add(&tv_cum, &tv_cum, &tv_count[i]); |
| 1879 | } |
| 1880 | if (sortfun) |
| 1881 | qsort((void *) sorted_count, nsyscalls, sizeof(int), sortfun); |
| 1882 | fprintf(outf, "%6.6s %11.11s %11.11s %9.9s %9.9s %s\n", |
| 1883 | "% time", "seconds", "usecs/call", |
| 1884 | "calls", "errors", "syscall"); |
| 1885 | fprintf(outf, "%6.6s %11.11s %11.11s %9.9s %9.9s %-16.16s\n", |
| 1886 | dashes, dashes, dashes, dashes, dashes, dashes); |
| 1887 | for (i = 0; i < nsyscalls; i++) { |
| 1888 | j = sorted_count[i]; |
| 1889 | if (call_count[j] == 0) |
| 1890 | continue; |
| 1891 | tv_div(&dtv, &tv_count[j], call_count[j]); |
| 1892 | if (error_count[j]) |
| 1893 | sprintf(error_str, "%d", error_count[j]); |
| 1894 | else |
| 1895 | error_str[0] = '\0'; |
| 1896 | percent = 100.0*tv_float(&tv_count[j])/tv_float(&tv_cum); |
| 1897 | fprintf(outf, "%6.2f %4ld.%06ld %11ld %9d %9.9s %s\n", |
| 1898 | percent, (long) tv_count[j].tv_sec, |
| 1899 | (long) tv_count[j].tv_usec, |
| 1900 | (long) 1000000 * dtv.tv_sec + dtv.tv_usec, |
| 1901 | call_count[j], error_str, sysent[j].sys_name); |
| 1902 | } |
| 1903 | fprintf(outf, "%6.6s %11.11s %11.11s %9.9s %9.9s %-16.16s\n", |
| 1904 | dashes, dashes, dashes, dashes, dashes, dashes); |
| 1905 | if (error_cum) |
| 1906 | sprintf(error_str, "%d", error_cum); |
| 1907 | else |
| 1908 | error_str[0] = '\0'; |
| 1909 | fprintf(outf, "%6.6s %4ld.%06ld %11.11s %9d %9.9s %s\n", |
| 1910 | "100.00", (long) tv_cum.tv_sec, (long) tv_cum.tv_usec, "", |
| 1911 | call_cum, error_str, "total"); |
| 1912 | } |