resource.c revision 57d45a2b3a3f8f56911563568d555176579734a7 
1/*
2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@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
38static const char *
39sprint_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
53static void
54print_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
69static void
70decode_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
83static const char *
84sprint_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
98static void
99print_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
114static void
115decode_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
145int
146sys_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
158int
159sys_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
169int
170sys_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
187void
188printrusage32(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
244void
245printrusage(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
279int
280sys_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
292int
293sys_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#include "xlat/priorities.h"
306
307int
308sys_getpriority(struct tcb *tcp)
309{
310	if (entering(tcp)) {
311		printxval(priorities, tcp->u_arg[0], "PRIO_???");
312		tprintf(", %lu", tcp->u_arg[1]);
313	}
314	return 0;
315}
316
317int
318sys_setpriority(struct tcb *tcp)
319{
320	if (entering(tcp)) {
321		printxval(priorities, tcp->u_arg[0], "PRIO_???");
322		tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
323	}
324	return 0;
325}
326
327int
328sys_times(struct tcb *tcp)
329{
330	struct tms tbuf;
331
332	if (exiting(tcp)) {
333		if (tcp->u_arg[0] == 0)
334			tprints("NULL");
335		else if (syserror(tcp))
336			tprintf("%#lx", tcp->u_arg[0]);
337		else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
338			tprints("{...}");
339		else {
340			tprintf("{tms_utime=%llu, tms_stime=%llu, ",
341				(unsigned long long) tbuf.tms_utime,
342				(unsigned long long) tbuf.tms_stime);
343			tprintf("tms_cutime=%llu, tms_cstime=%llu}",
344				(unsigned long long) tbuf.tms_cutime,
345				(unsigned long long) tbuf.tms_cstime);
346		}
347	}
348	return 0;
349}
350