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 
     31 #include "defs.h"
     32 #include <sys/resource.h>
     33 #include <sys/times.h>
     34 #include <linux/kernel.h>
     35 
     36 #include "xlat/resources.h"
     37 
     38 static const char *
     39 sprint_rlim64(uint64_t lim)
     40 {
     41 	static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
     42 
     43 	if (lim == UINT64_MAX)
     44 		return "RLIM64_INFINITY";
     45 
     46 	if (lim > 1024 && lim % 1024 == 0)
     47 		sprintf(buf, "%" PRIu64 "*1024", lim / 1024);
     48 	else
     49 		sprintf(buf, "%" PRIu64, lim);
     50 	return buf;
     51 }
     52 
     53 static void
     54 print_rlimit64(struct tcb *tcp, unsigned long addr)
     55 {
     56 	struct rlimit_64 {
     57 		uint64_t rlim_cur;
     58 		uint64_t rlim_max;
     59 	} rlim;
     60 
     61 	if (umove(tcp, addr, &rlim) < 0)
     62 		tprintf("%#lx", addr);
     63 	else {
     64 		tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
     65 		tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
     66 	}
     67 }
     68 
     69 static void
     70 decode_rlimit64(struct tcb *tcp, unsigned long addr)
     71 {
     72 	if (!addr)
     73 		tprints("NULL");
     74 	else if (!verbose(tcp) ||
     75 		 (exiting(tcp) && syserror(tcp)))
     76 		tprintf("%#lx", addr);
     77 	else
     78 		print_rlimit64(tcp, addr);
     79 }
     80 
     81 #if !defined(current_wordsize) || current_wordsize == 4
     82 
     83 static const char *
     84 sprint_rlim32(uint32_t lim)
     85 {
     86 	static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
     87 
     88 	if (lim == UINT32_MAX)
     89 		return "RLIM_INFINITY";
     90 
     91 	if (lim > 1024 && lim % 1024 == 0)
     92 		sprintf(buf, "%" PRIu32 "*1024", lim / 1024);
     93 	else
     94 		sprintf(buf, "%" PRIu32, lim);
     95 	return buf;
     96 }
     97 
     98 static void
     99 print_rlimit32(struct tcb *tcp, unsigned long addr)
    100 {
    101 	struct rlimit_32 {
    102 		uint32_t rlim_cur;
    103 		uint32_t rlim_max;
    104 	} rlim;
    105 
    106 	if (umove(tcp, addr, &rlim) < 0)
    107 		tprintf("%#lx", addr);
    108 	else {
    109 		tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
    110 		tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
    111 	}
    112 }
    113 
    114 static void
    115 decode_rlimit(struct tcb *tcp, unsigned long addr)
    116 {
    117 	if (!addr)
    118 		tprints("NULL");
    119 	else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
    120 		tprintf("%#lx", addr);
    121 	else {
    122 # if defined(X86_64) || defined(X32)
    123 		/*
    124 		 * i386 is the only personality on X86_64 and X32
    125 		 * with 32-bit rlim_t.
    126 		 * When current_personality is X32, current_wordsize
    127 		 * equals to 4 but rlim_t is 64-bit.
    128 		 */
    129 		if (current_personality == 1)
    130 # else
    131 		if (current_wordsize == 4)
    132 # endif
    133 			print_rlimit32(tcp, addr);
    134 		else
    135 			print_rlimit64(tcp, addr);
    136 	}
    137 }
    138 
    139 #else /* defined(current_wordsize) && current_wordsize != 4 */
    140 
    141 # define decode_rlimit decode_rlimit64
    142 
    143 #endif
    144 
    145 int
    146 sys_getrlimit(struct tcb *tcp)
    147 {
    148 	if (entering(tcp)) {
    149 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    150 		tprints(", ");
    151 	}
    152 	else {
    153 		decode_rlimit(tcp, tcp->u_arg[1]);
    154 	}
    155 	return 0;
    156 }
    157 
    158 int
    159 sys_setrlimit(struct tcb *tcp)
    160 {
    161 	if (entering(tcp)) {
    162 		printxval(resources, tcp->u_arg[0], "RLIMIT_???");
    163 		tprints(", ");
    164 		decode_rlimit(tcp, tcp->u_arg[1]);
    165 	}
    166 	return 0;
    167 }
    168 
    169 int
    170 sys_prlimit64(struct tcb *tcp)
    171 {
    172 	if (entering(tcp)) {
    173 		tprintf("%ld, ", tcp->u_arg[0]);
    174 		printxval(resources, tcp->u_arg[1], "RLIMIT_???");
    175 		tprints(", ");
    176 		decode_rlimit64(tcp, tcp->u_arg[2]);
    177 		tprints(", ");
    178 	} else {
    179 		decode_rlimit64(tcp, tcp->u_arg[3]);
    180 	}
    181 	return 0;
    182 }
    183 
    184 #include "xlat/usagewho.h"
    185 
    186 #ifdef ALPHA
    187 void
    188 printrusage32(struct tcb *tcp, long addr)
    189 {
    190 	struct timeval32 {
    191 		unsigned tv_sec;
    192 		unsigned tv_usec;
    193 	};
    194 	struct rusage32 {
    195 		struct timeval32 ru_utime;	/* user time used */
    196 		struct timeval32 ru_stime;	/* system time used */
    197 		long	ru_maxrss;		/* maximum resident set size */
    198 		long	ru_ixrss;		/* integral shared memory size */
    199 		long	ru_idrss;		/* integral unshared data size */
    200 		long	ru_isrss;		/* integral unshared stack size */
    201 		long	ru_minflt;		/* page reclaims */
    202 		long	ru_majflt;		/* page faults */
    203 		long	ru_nswap;		/* swaps */
    204 		long	ru_inblock;		/* block input operations */
    205 		long	ru_oublock;		/* block output operations */
    206 		long	ru_msgsnd;		/* messages sent */
    207 		long	ru_msgrcv;		/* messages received */
    208 		long	ru_nsignals;		/* signals received */
    209 		long	ru_nvcsw;		/* voluntary context switches */
    210 		long	ru_nivcsw;		/* involuntary " */
    211 	} ru;
    212 
    213 	if (!addr)
    214 		tprints("NULL");
    215 	else if (syserror(tcp) || !verbose(tcp))
    216 		tprintf("%#lx", addr);
    217 	else if (umove(tcp, addr, &ru) < 0)
    218 		tprints("{...}");
    219 	else if (!abbrev(tcp)) {
    220 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
    221 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    222 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    223 		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
    224 			ru.ru_maxrss, ru.ru_ixrss);
    225 		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
    226 			ru.ru_idrss, ru.ru_isrss);
    227 		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
    228 			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
    229 		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
    230 			ru.ru_inblock, ru.ru_oublock);
    231 		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
    232 			ru.ru_msgsnd, ru.ru_msgrcv);
    233 		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
    234 			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
    235 	}
    236 	else {
    237 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
    238 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    239 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    240 	}
    241 }
    242 #endif
    243 
    244 void
    245 printrusage(struct tcb *tcp, long addr)
    246 {
    247 	struct rusage ru;
    248 
    249 	if (!addr)
    250 		tprints("NULL");
    251 	else if (syserror(tcp) || !verbose(tcp))
    252 		tprintf("%#lx", addr);
    253 	else if (umove(tcp, addr, &ru) < 0)
    254 		tprints("{...}");
    255 	else if (!abbrev(tcp)) {
    256 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
    257 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    258 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    259 		tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
    260 			ru.ru_maxrss, ru.ru_ixrss);
    261 		tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
    262 			ru.ru_idrss, ru.ru_isrss);
    263 		tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
    264 			ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
    265 		tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
    266 			ru.ru_inblock, ru.ru_oublock);
    267 		tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
    268 			ru.ru_msgsnd, ru.ru_msgrcv);
    269 		tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
    270 			ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
    271 	}
    272 	else {
    273 		tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
    274 			(long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
    275 			(long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
    276 	}
    277 }
    278 
    279 int
    280 sys_getrusage(struct tcb *tcp)
    281 {
    282 	if (entering(tcp)) {
    283 		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
    284 		tprints(", ");
    285 	}
    286 	else
    287 		printrusage(tcp, tcp->u_arg[1]);
    288 	return 0;
    289 }
    290 
    291 #ifdef ALPHA
    292 int
    293 sys_osf_getrusage(struct tcb *tcp)
    294 {
    295 	if (entering(tcp)) {
    296 		printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
    297 		tprints(", ");
    298 	}
    299 	else
    300 		printrusage32(tcp, tcp->u_arg[1]);
    301 	return 0;
    302 }
    303 #endif /* ALPHA */
    304 
    305 int
    306 sys_sysinfo(struct tcb *tcp)
    307 {
    308 	struct sysinfo si;
    309 
    310 	if (exiting(tcp)) {
    311 		if (syserror(tcp) || !verbose(tcp))
    312 			tprintf("%#lx", tcp->u_arg[0]);
    313 		else if (umove(tcp, tcp->u_arg[0], &si) < 0)
    314 			tprints("{...}");
    315 		else {
    316 			tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
    317 				(long) si.uptime, (long) si.loads[0],
    318 				(long) si.loads[1], (long) si.loads[2]);
    319 			tprintf("totalram=%lu, freeram=%lu, ",
    320 				(long) si.totalram, (long) si.freeram);
    321 			tprintf("sharedram=%lu, bufferram=%lu} ",
    322 				(long) si.sharedram, (long) si.bufferram);
    323 			tprintf("totalswap=%lu, freeswap=%lu, procs=%u}",
    324 				(long) si.totalswap, (long) si.freeswap,
    325 				(unsigned)si.procs);
    326 		}
    327 	}
    328 	return 0;
    329 }
    330 
    331 #include "xlat/priorities.h"
    332 
    333 int
    334 sys_getpriority(struct tcb *tcp)
    335 {
    336 	if (entering(tcp)) {
    337 		printxval(priorities, tcp->u_arg[0], "PRIO_???");
    338 		tprintf(", %lu", tcp->u_arg[1]);
    339 	}
    340 	return 0;
    341 }
    342 
    343 int
    344 sys_setpriority(struct tcb *tcp)
    345 {
    346 	if (entering(tcp)) {
    347 		printxval(priorities, tcp->u_arg[0], "PRIO_???");
    348 		tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
    349 	}
    350 	return 0;
    351 }
    352 
    353 int
    354 sys_times(struct tcb *tcp)
    355 {
    356 	struct tms tbuf;
    357 
    358 	if (exiting(tcp)) {
    359 		if (tcp->u_arg[0] == 0)
    360 			tprints("NULL");
    361 		else if (syserror(tcp))
    362 			tprintf("%#lx", tcp->u_arg[0]);
    363 		else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
    364 			tprints("{...}");
    365 		else {
    366 			tprintf("{tms_utime=%llu, tms_stime=%llu, ",
    367 				(unsigned long long) tbuf.tms_utime,
    368 				(unsigned long long) tbuf.tms_stime);
    369 			tprintf("tms_cutime=%llu, tms_cstime=%llu}",
    370 				(unsigned long long) tbuf.tms_cutime,
    371 				(unsigned long long) tbuf.tms_cstime);
    372 		}
    373 	}
    374 	return 0;
    375 }
    376