Home | History | Annotate | Download | only in strace
      1 /*
      2  * Copyright (c) 1991, 1992 Paul Kranenburg <pk (at) cs.few.eur.nl>
      3  * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl>
      4  * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com>
      5  * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) cistron.nl>
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. The name of the author may not be used to endorse or promote products
     17  *    derived from this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  *
     30  *	$Id$
     31  */
     32 
     33 #include "defs.h"
     34 
     35 #include <sys/resource.h>
     36 #ifdef LINUX
     37 #include <sys/times.h>
     38 #include <linux/kernel.h>
     39 #endif /* LINUX */
     40 #if defined(SVR4) || defined(FREEBSD)
     41 #include <sys/times.h>
     42 #include <sys/time.h>
     43 #endif
     44 
     45 #if HAVE_LONG_LONG_RLIM_T
     46 /*
     47  * Hacks for systems that have a long long rlim_t
     48  */
     49 
     50 #define rlimit64 rlimit			/* Ugly hack */
     51 #define rlim64_t rlim_t			/* Ugly hack */
     52 #define RLIM64_INFINITY RLIM_INFINITY	/* You guessed it */
     53 
     54 #define sys_getrlimit64	sys_getrlimit
     55 #define sys_setrlimit64	sys_setrlimit
     56 #endif
     57 
     58 static const struct xlat resources[] = {
     59 #ifdef RLIMIT_AS
     60 	{ RLIMIT_AS,	"RLIMIT_AS"	},
     61 #endif
     62 #ifdef RLIMIT_CORE
     63 	{ RLIMIT_CORE,	"RLIMIT_CORE"	},
     64 #endif
     65 #ifdef RLIMIT_CPU
     66 	{ RLIMIT_CPU,	"RLIMIT_CPU"	},
     67 #endif
     68 #ifdef RLIMIT_DATA
     69 	{ RLIMIT_DATA,	"RLIMIT_DATA"	},
     70 #endif
     71 #ifdef RLIMIT_FSIZE
     72 	{ RLIMIT_FSIZE,	"RLIMIT_FSIZE"	},
     73 #endif
     74 #ifdef RLIMIT_LOCKS
     75 	{ RLIMIT_LOCKS,	"RLIMIT_LOCKS"	},
     76 #endif
     77 #ifdef RLIMIT_MEMLOCK
     78 	{ RLIMIT_MEMLOCK,	"RLIMIT_MEMLOCK"	},
     79 #endif
     80 #ifdef RLIMIT_MSGQUEUE
     81 	{ RLIMIT_MSGQUEUE,	"RLIMIT_MSGQUEUE"	},
     82 #endif
     83 #ifdef RLIMIT_NICE
     84 	{ RLIMIT_NICE,	"RLIMIT_NICE"	},
     85 #endif
     86 #ifdef RLIMIT_NOFILE
     87 	{ RLIMIT_NOFILE,	"RLIMIT_NOFILE"	},
     88 #endif
     89 #ifdef RLIMIT_NPROC
     90 	{ RLIMIT_NPROC,	"RLIMIT_NPROC"	},
     91 #endif
     92 #ifdef RLIMIT_RSS
     93 	{ RLIMIT_RSS,	"RLIMIT_RSS"	},
     94 #endif
     95 #ifdef RLIMIT_RTPRIO
     96 	{ RLIMIT_RTPRIO,	"RLIMIT_RTPRIO"	},
     97 #endif
     98 #ifdef RLIMIT_SIGPENDING
     99 	{ RLIMIT_SIGPENDING,	"RLIMIT_SIGPENDING"	},
    100 #endif
    101 #ifdef RLIMIT_STACK
    102 	{ RLIMIT_STACK,	"RLIMIT_STACK"	},
    103 #endif
    104 #ifdef RLIMIT_VMEM
    105 	{ RLIMIT_VMEM,	"RLIMIT_VMEM"	},
    106 #endif
    107 	{ 0,		NULL		},
    108 };
    109 
    110 #if !HAVE_LONG_LONG_RLIM_T
    111 static char *
    112 sprintrlim(long lim)
    113 {
    114 	static char buf[32];
    115 
    116 	if (lim == RLIM_INFINITY)
    117 		sprintf(buf, "RLIM_INFINITY");
    118 	else if (lim > 1024 && lim%1024 == 0)
    119 		sprintf(buf, "%ld*1024", lim/1024);
    120 	else
    121 		sprintf(buf, "%ld", lim);
    122 	return buf;
    123 }
    124 
    125 # if defined LINUX && (defined POWERPC64 || defined X86_64)
    126 static void
    127 print_rlimit32(struct tcb *tcp)
    128 {
    129 	struct rlimit32 {
    130 		unsigned int rlim_cur;
    131 		unsigned int rlim_max;
    132 	} rlim;
    133 
    134 	if (umove(tcp, tcp->u_arg[1], &rlim) < 0)
    135 		tprintf("{...}");
    136 	else {
    137 		tprintf("{rlim_cur=%s,",
    138 			sprintrlim(rlim.rlim_cur == -1 ? RLIM_INFINITY
    139 				   : rlim.rlim_cur));
    140 		tprintf(" rlim_max=%s}",
    141 			sprintrlim(rlim.rlim_max == -1 ? RLIM_INFINITY
    142 				   : rlim.rlim_max));
    143 	}
    144 }
    145 # endif
    146 
    147 int
    148 sys_getrlimit(struct tcb *tcp)
    149 {
    150 	struct rlimit rlim;
    151 
    152 	if (entering(tcp)) {
    153 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    154 		tprintf(", ");
    155 	}
    156 	else {
    157 		if (syserror(tcp) || !verbose(tcp))
    158 			tprintf("%#lx", tcp->u_arg[1]);
    159 # if defined LINUX && (defined POWERPC64 || defined X86_64)
    160 		else if (current_personality == 1)
    161 			print_rlimit32(tcp);
    162 # endif
    163 		else if (umove(tcp, tcp->u_arg[1], &rlim) < 0)
    164 			tprintf("{...}");
    165 		else {
    166 			tprintf("{rlim_cur=%s,", sprintrlim(rlim.rlim_cur));
    167 			tprintf(" rlim_max=%s}", sprintrlim(rlim.rlim_max));
    168 		}
    169 	}
    170 	return 0;
    171 }
    172 
    173 int
    174 sys_setrlimit(struct tcb *tcp)
    175 {
    176 	struct rlimit rlim;
    177 
    178 	if (entering(tcp)) {
    179 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    180 		tprintf(", ");
    181 		if (!verbose(tcp))
    182 			tprintf("%#lx", tcp->u_arg[1]);
    183 # if defined LINUX && (defined POWERPC64 || defined X86_64)
    184 		else if (current_personality == 1)
    185 			print_rlimit32(tcp);
    186 # endif
    187 		else if (umove(tcp, tcp->u_arg[1], &rlim) < 0)
    188 			tprintf("{...}");
    189 		else {
    190 			tprintf("{rlim_cur=%s,", sprintrlim(rlim.rlim_cur));
    191 			tprintf(" rlim_max=%s}", sprintrlim(rlim.rlim_max));
    192 		}
    193 	}
    194 	return 0;
    195 }
    196 #endif /* !HAVE_LONG_LONG_RLIM_T */
    197 
    198 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_RLIM_T
    199 static char *
    200 sprintrlim64(rlim64_t lim)
    201 {
    202 	static char buf[64];
    203 
    204 	if (lim == RLIM64_INFINITY)
    205 		sprintf(buf, "RLIM64_INFINITY");
    206 	else if (lim > 1024 && lim%1024 == 0)
    207 		sprintf(buf, "%lld*1024", (long long) lim/1024);
    208 	else
    209 		sprintf(buf, "%lld", (long long) lim);
    210 	return buf;
    211 }
    212 
    213 int
    214 sys_getrlimit64(struct tcb *tcp)
    215 {
    216 	struct rlimit64 rlim;
    217 
    218 	if (entering(tcp)) {
    219 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    220 		tprintf(", ");
    221 	}
    222 	else {
    223 		if (syserror(tcp) || !verbose(tcp))
    224 			tprintf("%#lx", tcp->u_arg[1]);
    225 		else if (umove(tcp, tcp->u_arg[1], &rlim) < 0)
    226 			tprintf("{...}");
    227 		else {
    228 			tprintf("{rlim_cur=%s,", sprintrlim64(rlim.rlim_cur));
    229 			tprintf(" rlim_max=%s}", sprintrlim64(rlim.rlim_max));
    230 		}
    231 	}
    232 	return 0;
    233 }
    234 
    235 int
    236 sys_setrlimit64(struct tcb *tcp)
    237 {
    238 	struct rlimit64 rlim;
    239 
    240 	if (entering(tcp)) {
    241 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    242 		tprintf(", ");
    243 		if (!verbose(tcp))
    244 			tprintf("%#lx", tcp->u_arg[1]);
    245 		else if (umove(tcp, tcp->u_arg[1], &rlim) < 0)
    246 			tprintf("{...}");
    247 		else {
    248 			tprintf("{rlim_cur=%s,", sprintrlim64(rlim.rlim_cur));
    249 			tprintf(" rlim_max=%s}", sprintrlim64(rlim.rlim_max));
    250 		}
    251 	}
    252 	return 0;
    253 }
    254 #endif /* _LFS64_LARGEFILES || HAVE_LONG_LONG_RLIM_T */
    255 
    256 #ifndef SVR4
    257 
    258 static const struct xlat usagewho[] = {
    259 	{ RUSAGE_SELF,		"RUSAGE_SELF"		},
    260 	{ RUSAGE_CHILDREN,	"RUSAGE_CHILDREN"	},
    261 #ifdef RUSAGE_BOTH
    262 	{ RUSAGE_BOTH,		"RUSAGE_BOTH"		},
    263 #endif
    264 	{ 0,			NULL			},
    265 };
    266 
    267 #ifdef ALPHA
    268 void
    269 printrusage32(struct tcb *tcp, long addr)
    270 {
    271 	struct timeval32 {
    272 		unsigned tv_sec;
    273 		unsigned tv_usec;
    274 	};
    275 	struct rusage32 {
    276 		struct timeval32 ru_utime;	/* user time used */
    277 		struct timeval32 ru_stime;	/* system time used */
    278 		long	ru_maxrss;		/* maximum resident set size */
    279 		long	ru_ixrss;		/* integral shared memory size */
    280 		long	ru_idrss;		/* integral unshared data size */
    281 		long	ru_isrss;		/* integral unshared stack size */
    282 		long	ru_minflt;		/* page reclaims */
    283 		long	ru_majflt;		/* page faults */
    284 		long	ru_nswap;		/* swaps */
    285 		long	ru_inblock;		/* block input operations */
    286 		long	ru_oublock;		/* block output operations */
    287 		long	ru_msgsnd;		/* messages sent */
    288 		long	ru_msgrcv;		/* messages received */
    289 		long	ru_nsignals;		/* signals received */
    290 		long	ru_nvcsw;		/* voluntary context switches */
    291 		long	ru_nivcsw;		/* involuntary " */
    292 	} ru;
    293 
    294 	if (!addr)
    295 		tprintf("NULL");
    296 	else if (syserror(tcp) || !verbose(tcp))
    297 		tprintf("%#lx", addr);
    298 	else if (umove(tcp, addr, &ru) < 0)
    299 		tprintf("{...}");
    300 	else if (!abbrev(tcp)) {
    301 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
    302 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    303 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    304 		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
    305 			ru.ru_maxrss, ru.ru_ixrss);
    306 		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
    307 			ru.ru_idrss, ru.ru_isrss);
    308 		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
    309 			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
    310 		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
    311 			ru.ru_inblock, ru.ru_oublock);
    312 		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
    313 			ru.ru_msgsnd, ru.ru_msgrcv);
    314 		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
    315 			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
    316 	}
    317 	else {
    318 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
    319 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    320 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    321 	}
    322 }
    323 #endif
    324 
    325 void
    326 printrusage(struct tcb *tcp, long addr)
    327 {
    328 	struct rusage ru;
    329 
    330 	if (!addr)
    331 		tprintf("NULL");
    332 	else if (syserror(tcp) || !verbose(tcp))
    333 		tprintf("%#lx", addr);
    334 	else if (umove(tcp, addr, &ru) < 0)
    335 		tprintf("{...}");
    336 	else if (!abbrev(tcp)) {
    337 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
    338 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    339 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    340 		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
    341 			ru.ru_maxrss, ru.ru_ixrss);
    342 		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
    343 			ru.ru_idrss, ru.ru_isrss);
    344 		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
    345 			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
    346 		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
    347 			ru.ru_inblock, ru.ru_oublock);
    348 		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
    349 			ru.ru_msgsnd, ru.ru_msgrcv);
    350 		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
    351 			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
    352 	}
    353 	else {
    354 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
    355 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    356 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    357 	}
    358 }
    359 
    360 int
    361 sys_getrusage(struct tcb *tcp)
    362 {
    363 	if (entering(tcp)) {
    364 		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
    365 		tprintf(", ");
    366 	}
    367 	else
    368 		printrusage(tcp, tcp->u_arg[1]);
    369 	return 0;
    370 }
    371 
    372 #ifdef ALPHA
    373 int
    374 sys_osf_getrusage(struct tcb *tcp)
    375 {
    376 	if (entering(tcp)) {
    377 		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
    378 		tprintf(", ");
    379 	}
    380 	else
    381 		printrusage32(tcp, tcp->u_arg[1]);
    382 	return 0;
    383 }
    384 #endif /* ALPHA */
    385 
    386 #endif /* !SVR4 */
    387 
    388 #ifdef LINUX
    389 
    390 int
    391 sys_sysinfo(struct tcb *tcp)
    392 {
    393 	struct sysinfo si;
    394 
    395 	if (exiting(tcp)) {
    396 		if (syserror(tcp) || !verbose(tcp))
    397 			tprintf("%#lx", tcp->u_arg[0]);
    398 		else if (umove(tcp, tcp->u_arg[0], &si) < 0)
    399 			tprintf("{...}");
    400 		else {
    401 			tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
    402 				si.uptime, si.loads[0], si.loads[1],
    403 				si.loads[2]);
    404 			tprintf("totalram=%lu, freeram=%lu, ",
    405 				si.totalram, si.freeram);
    406 			tprintf("sharedram=%lu, bufferram=%lu} ",
    407 				si.sharedram, si.bufferram);
    408 			tprintf("totalswap=%lu, freeswap=%lu, procs=%hu}",
    409 				si.totalswap, si.freeswap, si.procs);
    410 		}
    411 	}
    412 	return 0;
    413 }
    414 
    415 #endif /* LINUX */
    416 
    417 static const struct xlat priorities[] = {
    418 	{ PRIO_PROCESS,	"PRIO_PROCESS"	},
    419 	{ PRIO_PGRP,	"PRIO_PGRP"	},
    420 	{ PRIO_USER,	"PRIO_USER"	},
    421 	{ 0,		NULL		},
    422 };
    423 
    424 int
    425 sys_getpriority(struct tcb *tcp)
    426 {
    427 	if (entering(tcp)) {
    428 		printxval(priorities, tcp->u_arg[0], "PRIO_???");
    429 		tprintf(", %lu", tcp->u_arg[1]);
    430 	}
    431 	return 0;
    432 }
    433 
    434 int
    435 sys_setpriority(struct tcb *tcp)
    436 {
    437 	if (entering(tcp)) {
    438 		printxval(priorities, tcp->u_arg[0], "PRIO_???");
    439 		tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
    440 	}
    441 	return 0;
    442 }
    443 
    444 int
    445 sys_nice(struct tcb *tcp)
    446 {
    447 	if (entering(tcp))
    448 		tprintf("%ld", tcp->u_arg[0]);
    449 	return 0;
    450 }
    451 
    452 #ifndef SUNOS4
    453 
    454 int
    455 sys_times(struct tcb *tcp)
    456 {
    457 	struct tms tbuf;
    458 
    459 	if (exiting(tcp)) {
    460 		if (tcp->u_arg[0] == 0)
    461 			tprintf("NULL");
    462 		else if (syserror(tcp))
    463 			tprintf("%#lx", tcp->u_arg[0]);
    464 		else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
    465 			tprintf("{...}");
    466 		else {
    467 			tprintf("{tms_utime=%lu, tms_stime=%lu, ",
    468 				tbuf.tms_utime, tbuf.tms_stime);
    469 			tprintf("tms_cutime=%lu, tms_cstime=%lu}",
    470 				tbuf.tms_cutime, tbuf.tms_cstime);
    471 		}
    472 	}
    473 	return 0;
    474 }
    475 
    476 #endif /* !SUNOS4 */
    477