Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/fs/proc/array.c | |
3 | * | |
4 | * Copyright (C) 1992 by Linus Torvalds | |
5 | * based on ideas by Darren Senn | |
6 | * | |
7 | * Fixes: | |
8 | * Michael. K. Johnson: stat,statm extensions. | |
9 | * <johnsonm@stolaf.edu> | |
10 | * | |
11 | * Pauline Middelink : Made cmdline,envline only break at '\0's, to | |
12 | * make sure SET_PROCTITLE works. Also removed | |
13 | * bad '!' which forced address recalculation for | |
14 | * EVERY character on the current page. | |
15 | * <middelin@polyware.iaf.nl> | |
16 | * | |
17 | * Danny ter Haar : added cpuinfo | |
18 | * <dth@cistron.nl> | |
19 | * | |
20 | * Alessandro Rubini : profile extension. | |
21 | * <rubini@ipvvis.unipv.it> | |
22 | * | |
23 | * Jeff Tranter : added BogoMips field to cpuinfo | |
24 | * <Jeff_Tranter@Mitel.COM> | |
25 | * | |
26 | * Bruno Haible : remove 4K limit for the maps file | |
27 | * <haible@ma2s2.mathematik.uni-karlsruhe.de> | |
28 | * | |
29 | * Yves Arrouye : remove removal of trailing spaces in get_array. | |
30 | * <Yves.Arrouye@marin.fdn.fr> | |
31 | * | |
32 | * Jerome Forissier : added per-CPU time information to /proc/stat | |
33 | * and /proc/<pid>/cpu extension | |
34 | * <forissier@isia.cma.fr> | |
35 | * - Incorporation and non-SMP safe operation | |
36 | * of forissier patch in 2.1.78 by | |
37 | * Hans Marcus <crowbar@concepts.nl> | |
38 | * | |
39 | * aeb@cwi.nl : /proc/partitions | |
40 | * | |
41 | * | |
42 | * Alan Cox : security fixes. | |
526719ba | 43 | * <alan@lxorguk.ukuu.org.uk> |
1da177e4 LT |
44 | * |
45 | * Al Viro : safe handling of mm_struct | |
46 | * | |
47 | * Gerhard Wichert : added BIGMEM support | |
48 | * Siemens AG <Gerhard.Wichert@pdb.siemens.de> | |
49 | * | |
50 | * Al Viro & Jeff Garzik : moved most of the thing into base.c and | |
51 | * : proc_misc.c. The rest may eventually go into | |
52 | * : base.c too. | |
53 | */ | |
54 | ||
1da177e4 LT |
55 | #include <linux/types.h> |
56 | #include <linux/errno.h> | |
57 | #include <linux/time.h> | |
58 | #include <linux/kernel.h> | |
59 | #include <linux/kernel_stat.h> | |
60 | #include <linux/tty.h> | |
61 | #include <linux/string.h> | |
62 | #include <linux/mman.h> | |
63 | #include <linux/proc_fs.h> | |
64 | #include <linux/ioport.h> | |
8ea02606 IM |
65 | #include <linux/uaccess.h> |
66 | #include <linux/io.h> | |
1da177e4 LT |
67 | #include <linux/mm.h> |
68 | #include <linux/hugetlb.h> | |
69 | #include <linux/pagemap.h> | |
70 | #include <linux/swap.h> | |
71 | #include <linux/slab.h> | |
72 | #include <linux/smp.h> | |
73 | #include <linux/signal.h> | |
74 | #include <linux/highmem.h> | |
75 | #include <linux/file.h> | |
9f3acc31 | 76 | #include <linux/fdtable.h> |
1da177e4 LT |
77 | #include <linux/times.h> |
78 | #include <linux/cpuset.h> | |
4fb3a538 | 79 | #include <linux/rcupdate.h> |
25890454 | 80 | #include <linux/delayacct.h> |
ee992744 | 81 | #include <linux/seq_file.h> |
b488893a | 82 | #include <linux/pid_namespace.h> |
f83ce3e6 | 83 | #include <linux/ptrace.h> |
0d094efe | 84 | #include <linux/tracehook.h> |
d899bf7b | 85 | #include <linux/swapops.h> |
1da177e4 | 86 | |
1da177e4 | 87 | #include <asm/pgtable.h> |
1da177e4 LT |
88 | #include <asm/processor.h> |
89 | #include "internal.h" | |
90 | ||
df5f8314 | 91 | static inline void task_name(struct seq_file *m, struct task_struct *p) |
1da177e4 LT |
92 | { |
93 | int i; | |
df5f8314 | 94 | char *buf, *end; |
8ea02606 | 95 | char *name; |
1da177e4 LT |
96 | char tcomm[sizeof(p->comm)]; |
97 | ||
98 | get_task_comm(tcomm, p); | |
99 | ||
df5f8314 EB |
100 | seq_printf(m, "Name:\t"); |
101 | end = m->buf + m->size; | |
102 | buf = m->buf + m->count; | |
1da177e4 LT |
103 | name = tcomm; |
104 | i = sizeof(tcomm); | |
df5f8314 | 105 | while (i && (buf < end)) { |
1da177e4 LT |
106 | unsigned char c = *name; |
107 | name++; | |
108 | i--; | |
109 | *buf = c; | |
110 | if (!c) | |
111 | break; | |
112 | if (c == '\\') { | |
df5f8314 EB |
113 | buf++; |
114 | if (buf < end) | |
115 | *buf++ = c; | |
1da177e4 LT |
116 | continue; |
117 | } | |
118 | if (c == '\n') { | |
df5f8314 EB |
119 | *buf++ = '\\'; |
120 | if (buf < end) | |
121 | *buf++ = 'n'; | |
1da177e4 LT |
122 | continue; |
123 | } | |
124 | buf++; | |
df5f8314 EB |
125 | } |
126 | m->count = buf - m->buf; | |
127 | seq_printf(m, "\n"); | |
1da177e4 LT |
128 | } |
129 | ||
130 | /* | |
131 | * The task state array is a strange "bitmap" of | |
132 | * reasons to sleep. Thus "running" is zero, and | |
133 | * you can test for combinations of others with | |
134 | * simple bit tests. | |
135 | */ | |
136 | static const char *task_state_array[] = { | |
137 | "R (running)", /* 0 */ | |
138 | "S (sleeping)", /* 1 */ | |
139 | "D (disk sleep)", /* 2 */ | |
140 | "T (stopped)", /* 4 */ | |
464763cf | 141 | "t (tracing stop)", /* 8 */ |
1da177e4 | 142 | "Z (zombie)", /* 16 */ |
464763cf PZ |
143 | "X (dead)", /* 32 */ |
144 | "x (dead)", /* 64 */ | |
145 | "K (wakekill)", /* 128 */ | |
146 | "W (waking)", /* 256 */ | |
1da177e4 LT |
147 | }; |
148 | ||
8ea02606 | 149 | static inline const char *get_task_state(struct task_struct *tsk) |
1da177e4 | 150 | { |
1587e2b1 | 151 | unsigned int state = (tsk->state & TASK_REPORT) | tsk->exit_state; |
1da177e4 LT |
152 | const char **p = &task_state_array[0]; |
153 | ||
154 | while (state) { | |
155 | p++; | |
156 | state >>= 1; | |
157 | } | |
158 | return *p; | |
159 | } | |
160 | ||
df5f8314 EB |
161 | static inline void task_state(struct seq_file *m, struct pid_namespace *ns, |
162 | struct pid *pid, struct task_struct *p) | |
1da177e4 LT |
163 | { |
164 | struct group_info *group_info; | |
165 | int g; | |
badf1662 | 166 | struct fdtable *fdt = NULL; |
c69e8d9c | 167 | const struct cred *cred; |
b488893a | 168 | pid_t ppid, tpid; |
1da177e4 | 169 | |
b0fa9db6 | 170 | rcu_read_lock(); |
b488893a PE |
171 | ppid = pid_alive(p) ? |
172 | task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0; | |
0d094efe RM |
173 | tpid = 0; |
174 | if (pid_alive(p)) { | |
175 | struct task_struct *tracer = tracehook_tracer_task(p); | |
176 | if (tracer) | |
177 | tpid = task_pid_nr_ns(tracer, ns); | |
178 | } | |
c69e8d9c | 179 | cred = get_cred((struct cred *) __task_cred(p)); |
df5f8314 | 180 | seq_printf(m, |
1da177e4 | 181 | "State:\t%s\n" |
1da177e4 LT |
182 | "Tgid:\t%d\n" |
183 | "Pid:\t%d\n" | |
184 | "PPid:\t%d\n" | |
185 | "TracerPid:\t%d\n" | |
186 | "Uid:\t%d\t%d\t%d\t%d\n" | |
187 | "Gid:\t%d\t%d\t%d\t%d\n", | |
188 | get_task_state(p), | |
b488893a | 189 | task_tgid_nr_ns(p, ns), |
df5f8314 | 190 | pid_nr_ns(pid, ns), |
b488893a | 191 | ppid, tpid, |
c69e8d9c DH |
192 | cred->uid, cred->euid, cred->suid, cred->fsuid, |
193 | cred->gid, cred->egid, cred->sgid, cred->fsgid); | |
b0fa9db6 | 194 | |
1da177e4 | 195 | task_lock(p); |
badf1662 DS |
196 | if (p->files) |
197 | fdt = files_fdtable(p->files); | |
df5f8314 | 198 | seq_printf(m, |
1da177e4 LT |
199 | "FDSize:\t%d\n" |
200 | "Groups:\t", | |
badf1662 | 201 | fdt ? fdt->max_fds : 0); |
4fb3a538 | 202 | rcu_read_unlock(); |
1da177e4 | 203 | |
c69e8d9c | 204 | group_info = cred->group_info; |
1da177e4 LT |
205 | task_unlock(p); |
206 | ||
8ea02606 | 207 | for (g = 0; g < min(group_info->ngroups, NGROUPS_SMALL); g++) |
df5f8314 | 208 | seq_printf(m, "%d ", GROUP_AT(group_info, g)); |
c69e8d9c | 209 | put_cred(cred); |
1da177e4 | 210 | |
df5f8314 | 211 | seq_printf(m, "\n"); |
1da177e4 LT |
212 | } |
213 | ||
df5f8314 EB |
214 | static void render_sigset_t(struct seq_file *m, const char *header, |
215 | sigset_t *set) | |
1da177e4 | 216 | { |
df5f8314 | 217 | int i; |
1da177e4 | 218 | |
df5f8314 | 219 | seq_printf(m, "%s", header); |
1da177e4 LT |
220 | |
221 | i = _NSIG; | |
222 | do { | |
223 | int x = 0; | |
224 | ||
225 | i -= 4; | |
226 | if (sigismember(set, i+1)) x |= 1; | |
227 | if (sigismember(set, i+2)) x |= 2; | |
228 | if (sigismember(set, i+3)) x |= 4; | |
229 | if (sigismember(set, i+4)) x |= 8; | |
df5f8314 | 230 | seq_printf(m, "%x", x); |
1da177e4 LT |
231 | } while (i >= 4); |
232 | ||
df5f8314 | 233 | seq_printf(m, "\n"); |
1da177e4 LT |
234 | } |
235 | ||
236 | static void collect_sigign_sigcatch(struct task_struct *p, sigset_t *ign, | |
237 | sigset_t *catch) | |
238 | { | |
239 | struct k_sigaction *k; | |
240 | int i; | |
241 | ||
242 | k = p->sighand->action; | |
243 | for (i = 1; i <= _NSIG; ++i, ++k) { | |
244 | if (k->sa.sa_handler == SIG_IGN) | |
245 | sigaddset(ign, i); | |
246 | else if (k->sa.sa_handler != SIG_DFL) | |
247 | sigaddset(catch, i); | |
248 | } | |
249 | } | |
250 | ||
df5f8314 | 251 | static inline void task_sig(struct seq_file *m, struct task_struct *p) |
1da177e4 | 252 | { |
5e6b3f42 | 253 | unsigned long flags; |
1da177e4 LT |
254 | sigset_t pending, shpending, blocked, ignored, caught; |
255 | int num_threads = 0; | |
256 | unsigned long qsize = 0; | |
257 | unsigned long qlim = 0; | |
258 | ||
259 | sigemptyset(&pending); | |
260 | sigemptyset(&shpending); | |
261 | sigemptyset(&blocked); | |
262 | sigemptyset(&ignored); | |
263 | sigemptyset(&caught); | |
264 | ||
5e6b3f42 | 265 | if (lock_task_sighand(p, &flags)) { |
1da177e4 LT |
266 | pending = p->pending.signal; |
267 | shpending = p->signal->shared_pending.signal; | |
268 | blocked = p->blocked; | |
269 | collect_sigign_sigcatch(p, &ignored, &caught); | |
270 | num_threads = atomic_read(&p->signal->count); | |
c69e8d9c | 271 | qsize = atomic_read(&__task_cred(p)->user->sigpending); |
1da177e4 | 272 | qlim = p->signal->rlim[RLIMIT_SIGPENDING].rlim_cur; |
5e6b3f42 | 273 | unlock_task_sighand(p, &flags); |
1da177e4 | 274 | } |
1da177e4 | 275 | |
df5f8314 EB |
276 | seq_printf(m, "Threads:\t%d\n", num_threads); |
277 | seq_printf(m, "SigQ:\t%lu/%lu\n", qsize, qlim); | |
1da177e4 LT |
278 | |
279 | /* render them all */ | |
df5f8314 EB |
280 | render_sigset_t(m, "SigPnd:\t", &pending); |
281 | render_sigset_t(m, "ShdPnd:\t", &shpending); | |
282 | render_sigset_t(m, "SigBlk:\t", &blocked); | |
283 | render_sigset_t(m, "SigIgn:\t", &ignored); | |
284 | render_sigset_t(m, "SigCgt:\t", &caught); | |
1da177e4 LT |
285 | } |
286 | ||
df5f8314 EB |
287 | static void render_cap_t(struct seq_file *m, const char *header, |
288 | kernel_cap_t *a) | |
e338d263 AM |
289 | { |
290 | unsigned __capi; | |
291 | ||
df5f8314 | 292 | seq_printf(m, "%s", header); |
e338d263 | 293 | CAP_FOR_EACH_U32(__capi) { |
df5f8314 | 294 | seq_printf(m, "%08x", |
ca05a99a | 295 | a->cap[(_KERNEL_CAPABILITY_U32S-1) - __capi]); |
e338d263 | 296 | } |
df5f8314 | 297 | seq_printf(m, "\n"); |
e338d263 AM |
298 | } |
299 | ||
df5f8314 | 300 | static inline void task_cap(struct seq_file *m, struct task_struct *p) |
1da177e4 | 301 | { |
c69e8d9c DH |
302 | const struct cred *cred; |
303 | kernel_cap_t cap_inheritable, cap_permitted, cap_effective, cap_bset; | |
b6dff3ec | 304 | |
c69e8d9c DH |
305 | rcu_read_lock(); |
306 | cred = __task_cred(p); | |
307 | cap_inheritable = cred->cap_inheritable; | |
308 | cap_permitted = cred->cap_permitted; | |
309 | cap_effective = cred->cap_effective; | |
310 | cap_bset = cred->cap_bset; | |
311 | rcu_read_unlock(); | |
312 | ||
313 | render_cap_t(m, "CapInh:\t", &cap_inheritable); | |
314 | render_cap_t(m, "CapPrm:\t", &cap_permitted); | |
315 | render_cap_t(m, "CapEff:\t", &cap_effective); | |
316 | render_cap_t(m, "CapBnd:\t", &cap_bset); | |
1da177e4 LT |
317 | } |
318 | ||
df5f8314 EB |
319 | static inline void task_context_switch_counts(struct seq_file *m, |
320 | struct task_struct *p) | |
b663a79c | 321 | { |
df5f8314 EB |
322 | seq_printf(m, "voluntary_ctxt_switches:\t%lu\n" |
323 | "nonvoluntary_ctxt_switches:\t%lu\n", | |
324 | p->nvcsw, | |
325 | p->nivcsw); | |
b663a79c MU |
326 | } |
327 | ||
c44972f1 AM |
328 | #ifdef CONFIG_MMU |
329 | ||
d899bf7b SS |
330 | struct stack_stats { |
331 | struct vm_area_struct *vma; | |
332 | unsigned long startpage; | |
333 | unsigned long usage; | |
334 | }; | |
335 | ||
336 | static int stack_usage_pte_range(pmd_t *pmd, unsigned long addr, | |
337 | unsigned long end, struct mm_walk *walk) | |
338 | { | |
339 | struct stack_stats *ss = walk->private; | |
340 | struct vm_area_struct *vma = ss->vma; | |
341 | pte_t *pte, ptent; | |
342 | spinlock_t *ptl; | |
343 | int ret = 0; | |
344 | ||
345 | pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); | |
346 | for (; addr != end; pte++, addr += PAGE_SIZE) { | |
347 | ptent = *pte; | |
348 | ||
349 | #ifdef CONFIG_STACK_GROWSUP | |
350 | if (pte_present(ptent) || is_swap_pte(ptent)) | |
351 | ss->usage = addr - ss->startpage + PAGE_SIZE; | |
352 | #else | |
353 | if (pte_present(ptent) || is_swap_pte(ptent)) { | |
354 | ss->usage = ss->startpage - addr + PAGE_SIZE; | |
355 | pte++; | |
356 | ret = 1; | |
357 | break; | |
358 | } | |
359 | #endif | |
360 | } | |
361 | pte_unmap_unlock(pte - 1, ptl); | |
362 | cond_resched(); | |
363 | return ret; | |
364 | } | |
365 | ||
366 | static inline unsigned long get_stack_usage_in_bytes(struct vm_area_struct *vma, | |
367 | struct task_struct *task) | |
368 | { | |
369 | struct stack_stats ss; | |
370 | struct mm_walk stack_walk = { | |
371 | .pmd_entry = stack_usage_pte_range, | |
372 | .mm = vma->vm_mm, | |
373 | .private = &ss, | |
374 | }; | |
375 | ||
376 | if (!vma->vm_mm || is_vm_hugetlb_page(vma)) | |
377 | return 0; | |
378 | ||
379 | ss.vma = vma; | |
380 | ss.startpage = task->stack_start & PAGE_MASK; | |
381 | ss.usage = 0; | |
382 | ||
383 | #ifdef CONFIG_STACK_GROWSUP | |
384 | walk_page_range(KSTK_ESP(task) & PAGE_MASK, vma->vm_end, | |
385 | &stack_walk); | |
386 | #else | |
387 | walk_page_range(vma->vm_start, (KSTK_ESP(task) & PAGE_MASK) + PAGE_SIZE, | |
388 | &stack_walk); | |
389 | #endif | |
390 | return ss.usage; | |
391 | } | |
392 | ||
393 | static inline void task_show_stack_usage(struct seq_file *m, | |
394 | struct task_struct *task) | |
395 | { | |
396 | struct vm_area_struct *vma; | |
397 | struct mm_struct *mm = get_task_mm(task); | |
398 | ||
399 | if (mm) { | |
400 | down_read(&mm->mmap_sem); | |
401 | vma = find_vma(mm, task->stack_start); | |
402 | if (vma) | |
403 | seq_printf(m, "Stack usage:\t%lu kB\n", | |
404 | get_stack_usage_in_bytes(vma, task) >> 10); | |
405 | ||
406 | up_read(&mm->mmap_sem); | |
407 | mmput(mm); | |
408 | } | |
409 | } | |
c44972f1 AM |
410 | #else |
411 | static void task_show_stack_usage(struct seq_file *m, struct task_struct *task) | |
412 | { | |
413 | } | |
414 | #endif /* CONFIG_MMU */ | |
d899bf7b | 415 | |
d01d4827 HC |
416 | static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) |
417 | { | |
418 | seq_printf(m, "Cpus_allowed:\t"); | |
419 | seq_cpumask(m, &task->cpus_allowed); | |
420 | seq_printf(m, "\n"); | |
421 | seq_printf(m, "Cpus_allowed_list:\t"); | |
422 | seq_cpumask_list(m, &task->cpus_allowed); | |
423 | seq_printf(m, "\n"); | |
424 | } | |
425 | ||
df5f8314 EB |
426 | int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, |
427 | struct pid *pid, struct task_struct *task) | |
1da177e4 | 428 | { |
1da177e4 LT |
429 | struct mm_struct *mm = get_task_mm(task); |
430 | ||
df5f8314 EB |
431 | task_name(m, task); |
432 | task_state(m, ns, pid, task); | |
8ea02606 | 433 | |
1da177e4 | 434 | if (mm) { |
df5f8314 | 435 | task_mem(m, mm); |
1da177e4 LT |
436 | mmput(mm); |
437 | } | |
df5f8314 EB |
438 | task_sig(m, task); |
439 | task_cap(m, task); | |
d01d4827 | 440 | task_cpus_allowed(m, task); |
df5f8314 | 441 | cpuset_task_status_allowed(m, task); |
347a8dc3 | 442 | #if defined(CONFIG_S390) |
df5f8314 | 443 | task_show_regs(m, task); |
1da177e4 | 444 | #endif |
df5f8314 | 445 | task_context_switch_counts(m, task); |
d899bf7b | 446 | task_show_stack_usage(m, task); |
df5f8314 | 447 | return 0; |
1da177e4 LT |
448 | } |
449 | ||
ee992744 EB |
450 | static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, |
451 | struct pid *pid, struct task_struct *task, int whole) | |
1da177e4 LT |
452 | { |
453 | unsigned long vsize, eip, esp, wchan = ~0UL; | |
454 | long priority, nice; | |
455 | int tty_pgrp = -1, tty_nr = 0; | |
456 | sigset_t sigign, sigcatch; | |
457 | char state; | |
8ea02606 | 458 | pid_t ppid = 0, pgid = -1, sid = -1; |
1da177e4 | 459 | int num_threads = 0; |
f83ce3e6 | 460 | int permitted; |
1da177e4 LT |
461 | struct mm_struct *mm; |
462 | unsigned long long start_time; | |
463 | unsigned long cmin_flt = 0, cmaj_flt = 0; | |
464 | unsigned long min_flt = 0, maj_flt = 0; | |
efe567fc | 465 | cputime_t cutime, cstime, utime, stime; |
9ac52315 | 466 | cputime_t cgtime, gtime; |
1da177e4 | 467 | unsigned long rsslim = 0; |
1da177e4 | 468 | char tcomm[sizeof(task->comm)]; |
a593d6ed | 469 | unsigned long flags; |
1da177e4 LT |
470 | |
471 | state = *get_task_state(task); | |
472 | vsize = eip = esp = 0; | |
f83ce3e6 | 473 | permitted = ptrace_may_access(task, PTRACE_MODE_READ); |
1da177e4 LT |
474 | mm = get_task_mm(task); |
475 | if (mm) { | |
476 | vsize = task_vsize(mm); | |
f83ce3e6 JE |
477 | if (permitted) { |
478 | eip = KSTK_EIP(task); | |
479 | esp = KSTK_ESP(task); | |
480 | } | |
1da177e4 LT |
481 | } |
482 | ||
483 | get_task_comm(tcomm, task); | |
484 | ||
485 | sigemptyset(&sigign); | |
486 | sigemptyset(&sigcatch); | |
efe567fc | 487 | cutime = cstime = utime = stime = cputime_zero; |
9ac52315 | 488 | cgtime = gtime = cputime_zero; |
3cfd0885 | 489 | |
a593d6ed ON |
490 | if (lock_task_sighand(task, &flags)) { |
491 | struct signal_struct *sig = task->signal; | |
91593504 ON |
492 | |
493 | if (sig->tty) { | |
5d0fdf1e AC |
494 | struct pid *pgrp = tty_get_pgrp(sig->tty); |
495 | tty_pgrp = pid_nr_ns(pgrp, ns); | |
496 | put_pid(pgrp); | |
91593504 | 497 | tty_nr = new_encode_dev(tty_devnum(sig->tty)); |
a593d6ed ON |
498 | } |
499 | ||
500 | num_threads = atomic_read(&sig->count); | |
1da177e4 LT |
501 | collect_sigign_sigcatch(task, &sigign, &sigcatch); |
502 | ||
a593d6ed ON |
503 | cmin_flt = sig->cmin_flt; |
504 | cmaj_flt = sig->cmaj_flt; | |
505 | cutime = sig->cutime; | |
506 | cstime = sig->cstime; | |
9ac52315 | 507 | cgtime = sig->cgtime; |
a593d6ed ON |
508 | rsslim = sig->rlim[RLIMIT_RSS].rlim_cur; |
509 | ||
1da177e4 LT |
510 | /* add up live thread stats at the group level */ |
511 | if (whole) { | |
a593d6ed | 512 | struct task_struct *t = task; |
1da177e4 LT |
513 | do { |
514 | min_flt += t->min_flt; | |
515 | maj_flt += t->maj_flt; | |
d5b7c78e | 516 | gtime = cputime_add(gtime, t->gtime); |
1da177e4 LT |
517 | t = next_thread(t); |
518 | } while (t != task); | |
1da177e4 | 519 | |
a593d6ed ON |
520 | min_flt += sig->min_flt; |
521 | maj_flt += sig->maj_flt; | |
0cf55e1e | 522 | thread_group_times(task, &utime, &stime); |
f9e26291 | 523 | gtime = cputime_add(gtime, sig->gtime); |
1da177e4 | 524 | } |
a593d6ed | 525 | |
b488893a | 526 | sid = task_session_nr_ns(task, ns); |
a98fdcef | 527 | ppid = task_tgid_nr_ns(task->real_parent, ns); |
b488893a | 528 | pgid = task_pgrp_nr_ns(task, ns); |
a593d6ed ON |
529 | |
530 | unlock_task_sighand(task, &flags); | |
1da177e4 | 531 | } |
1da177e4 | 532 | |
f83ce3e6 | 533 | if (permitted && (!whole || num_threads < 2)) |
1da177e4 LT |
534 | wchan = get_wchan(task); |
535 | if (!whole) { | |
536 | min_flt = task->min_flt; | |
537 | maj_flt = task->maj_flt; | |
d180c5bc | 538 | task_times(task, &utime, &stime); |
d5b7c78e | 539 | gtime = task->gtime; |
1da177e4 LT |
540 | } |
541 | ||
542 | /* scale priority and nice values from timeslices to -20..20 */ | |
543 | /* to make it look like a "normal" Unix priority/nice value */ | |
544 | priority = task_prio(task); | |
545 | nice = task_nice(task); | |
546 | ||
547 | /* Temporary variable needed for gcc-2.96 */ | |
548 | /* convert timespec -> nsec*/ | |
924b42d5 TJ |
549 | start_time = |
550 | (unsigned long long)task->real_start_time.tv_sec * NSEC_PER_SEC | |
551 | + task->real_start_time.tv_nsec; | |
1da177e4 LT |
552 | /* convert nsec -> ticks */ |
553 | start_time = nsec_to_clock_t(start_time); | |
554 | ||
ee992744 | 555 | seq_printf(m, "%d (%s) %c %d %d %d %d %d %u %lu \ |
4dee26b7 | 556 | %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \ |
9ac52315 | 557 | %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n", |
ee992744 | 558 | pid_nr_ns(pid, ns), |
1da177e4 LT |
559 | tcomm, |
560 | state, | |
561 | ppid, | |
562 | pgid, | |
563 | sid, | |
564 | tty_nr, | |
565 | tty_pgrp, | |
566 | task->flags, | |
567 | min_flt, | |
568 | cmin_flt, | |
569 | maj_flt, | |
570 | cmaj_flt, | |
efe567fc CB |
571 | cputime_to_clock_t(utime), |
572 | cputime_to_clock_t(stime), | |
1da177e4 LT |
573 | cputime_to_clock_t(cutime), |
574 | cputime_to_clock_t(cstime), | |
575 | priority, | |
576 | nice, | |
577 | num_threads, | |
1da177e4 LT |
578 | start_time, |
579 | vsize, | |
4294621f | 580 | mm ? get_mm_rss(mm) : 0, |
8ea02606 | 581 | rsslim, |
1da177e4 LT |
582 | mm ? mm->start_code : 0, |
583 | mm ? mm->end_code : 0, | |
9ebd4eba | 584 | (permitted && mm) ? task->stack_start : 0, |
1da177e4 LT |
585 | esp, |
586 | eip, | |
587 | /* The signal information here is obsolete. | |
588 | * It must be decimal for Linux 2.0 compatibility. | |
589 | * Use /proc/#/status for real-time signals. | |
590 | */ | |
591 | task->pending.signal.sig[0] & 0x7fffffffUL, | |
592 | task->blocked.sig[0] & 0x7fffffffUL, | |
593 | sigign .sig[0] & 0x7fffffffUL, | |
594 | sigcatch .sig[0] & 0x7fffffffUL, | |
595 | wchan, | |
596 | 0UL, | |
597 | 0UL, | |
598 | task->exit_signal, | |
599 | task_cpu(task), | |
600 | task->rt_priority, | |
25890454 | 601 | task->policy, |
9ac52315 LV |
602 | (unsigned long long)delayacct_blkio_ticks(task), |
603 | cputime_to_clock_t(gtime), | |
604 | cputime_to_clock_t(cgtime)); | |
8ea02606 | 605 | if (mm) |
1da177e4 | 606 | mmput(mm); |
ee992744 | 607 | return 0; |
1da177e4 LT |
608 | } |
609 | ||
ee992744 EB |
610 | int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns, |
611 | struct pid *pid, struct task_struct *task) | |
1da177e4 | 612 | { |
ee992744 | 613 | return do_task_stat(m, ns, pid, task, 0); |
1da177e4 LT |
614 | } |
615 | ||
ee992744 EB |
616 | int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns, |
617 | struct pid *pid, struct task_struct *task) | |
1da177e4 | 618 | { |
ee992744 | 619 | return do_task_stat(m, ns, pid, task, 1); |
1da177e4 LT |
620 | } |
621 | ||
a56d3fc7 EB |
622 | int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, |
623 | struct pid *pid, struct task_struct *task) | |
1da177e4 LT |
624 | { |
625 | int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0; | |
626 | struct mm_struct *mm = get_task_mm(task); | |
8ea02606 | 627 | |
1da177e4 LT |
628 | if (mm) { |
629 | size = task_statm(mm, &shared, &text, &data, &resident); | |
630 | mmput(mm); | |
631 | } | |
a56d3fc7 EB |
632 | seq_printf(m, "%d %d %d %d %d %d %d\n", |
633 | size, resident, shared, text, lib, data, 0); | |
1da177e4 | 634 | |
a56d3fc7 | 635 | return 0; |
1da177e4 | 636 | } |