make ps(1) use ProcFS
This commit is contained in:
parent
d7b10963c2
commit
40c8a7062c
3 changed files with 249 additions and 355 deletions
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@ -2,8 +2,6 @@
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#
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#
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PROG= ps
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PROG= ps
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CPPFLAGS+= -I${MINIXSRCDIR} -I${MINIXSRCDIR}/servers
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BINMODE= 4755
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MAN=
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MAN=
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.include <bsd.prog.mk>
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.include <bsd.prog.mk>
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604
commands/ps/ps.c
604
commands/ps/ps.c
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@ -1,4 +1,5 @@
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/* ps - print status Author: Peter Valkenburg */
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/* ps - print status Author: Peter Valkenburg */
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/* Modified for ProcFS by Alen Stojanov and David van Moolenbroek */
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/* Ps.c, Peter Valkenburg (valke@psy.vu.nl), january 1990.
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/* Ps.c, Peter Valkenburg (valke@psy.vu.nl), january 1990.
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*
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*
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@ -32,19 +33,16 @@
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* Most fields are similar to V7 ps(1), except for CPU, NICE, PRI which are
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* Most fields are similar to V7 ps(1), except for CPU, NICE, PRI which are
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* absent, RECV which replaces WCHAN, and PGRP that is an extra.
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* absent, RECV which replaces WCHAN, and PGRP that is an extra.
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* The info is obtained from the following fields of proc, mproc and fproc:
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* The info is obtained from the following fields of proc, mproc and fproc:
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* F - kernel status field, p_rts_flags
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* ST - kernel status field, p_rts_flags; pm status field, mp_flags (R if
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* S - kernel status field, p_rts_flags; mm status field, mp_flags (R if p_rts_flags
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* p_rts_flags is 0; Z if mp_flags == ZOMBIE; T if mp_flags == STOPPED;
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* is 0; Z if mp_flags == ZOMBIE; T if mp_flags == STOPPED; else W).
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* else W).
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* UID - mm eff uid field, mp_effuid
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* UID - pm eff uid field, mp_effuid
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* PID - mm pid field, mp_pid
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* PID - pm pid field, mp_pid
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* PPID - mm parent process index field, mp_parent (used as index in proc).
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* PPID - pm parent process index field, mp_parent (used as index in proc).
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* PGRP - mm process group field, mp_procgrp
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* PGRP - pm process group field, mp_procgrp
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* SZ - kernel text size + physical stack address - physical data address
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* SZ - memory size, including common and shared memory
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* + stack size
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* p_memmap[T].mem_len + p_memmap[S].mem_phys - p_memmap[D].mem_phys
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* + p_memmap[S].mem_len
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* RECV - kernel process index field for message receiving, p_getfrom
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* RECV - kernel process index field for message receiving, p_getfrom
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* If sleeping, mm's mp_flags, or fs's fp_task are used for more info.
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* If sleeping, pm's mp_flags, or fs's fp_task are used for more info.
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* TTY - fs controlling tty device field, fp_tty.
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* TTY - fs controlling tty device field, fp_tty.
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* TIME - kernel user + system times fields, user_time + sys_time
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* TIME - kernel user + system times fields, user_time + sys_time
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* CMD - system process index (converted to mnemonic name by using the p_name
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* CMD - system process index (converted to mnemonic name by using the p_name
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@ -54,50 +52,28 @@
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*/
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*/
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#include <minix/config.h>
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#include <minix/config.h>
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#include <minix/com.h>
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#include <minix/sysinfo.h>
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#include <minix/endpoint.h>
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#include <minix/endpoint.h>
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#include <minix/paths.h>
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#include <minix/procfs.h>
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#include <limits.h>
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#include <limits.h>
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#include <timers.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <minix/const.h>
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#include <minix/const.h>
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#include <minix/type.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/dmap.h>
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#include <string.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <minix/com.h>
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#include <fcntl.h>
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#include <fcntl.h>
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#include <a.out.h>
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#include <dirent.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <ttyent.h>
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#include <ttyent.h>
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#include <machine/archtypes.h>
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#include "kernel/const.h"
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#include "kernel/type.h"
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#include "kernel/proc.h"
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#include "pm/mproc.h"
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#include "pm/const.h"
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#include "vfs/fproc.h"
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#include "vfs/const.h"
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#include "mfs/const.h"
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/*----- ps's local stuff below this line ------*/
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/*----- ps's local stuff below this line ------*/
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#define mindev(dev) (((dev)>>MINOR) & 0377) /* yield minor device */
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#define majdev(dev) (((dev)>>MAJOR) & 0377) /* yield major device */
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#define TTY_MAJ 4 /* major device of console */
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/* Structure for tty name info. */
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/* Structure for tty name info. */
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typedef struct {
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typedef struct {
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char tty_name[NAME_MAX + 1]; /* file name in /dev */
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char tty_name[NAME_MAX + 1]; /* file name in /dev */
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@ -107,81 +83,57 @@ typedef struct {
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ttyinfo_t *ttyinfo; /* ttyinfo holds actual tty info */
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ttyinfo_t *ttyinfo; /* ttyinfo holds actual tty info */
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size_t n_ttyinfo; /* Number of tty info slots */
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size_t n_ttyinfo; /* Number of tty info slots */
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u32_t system_hz; /* system clock frequency */
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unsigned int nr_procs; /* maximum number of processes */
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unsigned int nr_tasks; /* maximum number of tasks */
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struct pstat *ptable; /* table with process information */
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/* Macro to convert endpoints to slots into ptable */
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#define SLOT_NR(e) (_ENDPOINT_P(e) + nr_tasks)
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/* Macro to convert memory offsets to rounded kilo-units */
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/* Macro to convert memory offsets to rounded kilo-units */
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#define off_to_k(off) ((unsigned) (((off) + 512) / 1024))
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#define off_to_k(off) ((unsigned) (((off) + 512) / 1024))
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/* Number of tasks and processes and addresses of the main process tables. */
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int nr_tasks, nr_procs;
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extern int errno;
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/* Process tables of the kernel, PM, and VFS. */
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struct proc *ps_proc;
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struct mproc *ps_mproc;
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struct fproc *ps_fproc;
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/* Where is INIT? */
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int init_proc_nr;
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#define low_user init_proc_nr
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#define KMEM_PATH "/dev/kmem" /* opened for kernel proc table */
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#define MEM_PATH "/dev/mem" /* opened for pm/fs + user processes */
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int kmemfd, memfd; /* file descriptors of [k]mem */
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/* Short and long listing formats:
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/* Short and long listing formats:
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*
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*
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* PID TTY TIME CMD
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* PID TTY TIME CMD
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* ppppp tttmmm:ss cccccccccc...
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* ppppp tttmmm:ss cccccccccc...
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*
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*
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* F S UID PID PPID PGRP SZ RECV TTY TIME CMD
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* ST UID PID PPID PGRP SZ RECV TTY TIME CMD
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* fff s uuu ppppp ppppp ppppp ssss rrrrrrrrrr tttmmm:ss cccccccc...
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* s uuu ppppp ppppp ppppp ssss rrrrrrrrrr tttmmm:ss cccccccc...
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*/
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*/
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#define S_HEADER " PID TTY TIME CMD\n"
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#define S_HEADER " PID TTY TIME CMD\n"
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#define S_FORMAT "%5s %3s %s %s\n"
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#define S_FORMAT "%5s %3s %s %s\n"
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#define L_HEADER " F S UID PID PPID PGRP SZ RECV TTY TIME CMD\n"
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#define L_HEADER "ST UID PID PPID PGRP SZ RECV TTY TIME CMD\n"
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#define L_FORMAT "%3o %c %3d %5s %5d %5d %6d %12s %3s %s %s\n"
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#define L_FORMAT " %c %3d %5s %5d %5d %6d %12s %3s %s %s\n"
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struct pstat { /* structure filled by pstat() */
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struct pstat { /* structure filled by pstat() */
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struct pstat *ps_next; /* next in process list */
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int ps_task; /* is this process a task or not? */
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int ps_endpt; /* process endpoint (NONE means unused slot) */
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dev_t ps_dev; /* major/minor of controlling tty */
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dev_t ps_dev; /* major/minor of controlling tty */
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uid_t ps_ruid; /* real uid */
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uid_t ps_ruid; /* real uid */
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uid_t ps_euid; /* effective uid */
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uid_t ps_euid; /* effective uid */
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pid_t ps_pid; /* process id */
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pid_t ps_pid; /* process id */
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pid_t ps_ppid; /* parent process id */
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pid_t ps_ppid; /* parent process id */
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int ps_pgrp; /* process group id */
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int ps_pgrp; /* process group id */
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int ps_flags; /* kernel flags */
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int ps_mflags; /* mm flags */
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int ps_ftask; /* fs suspend task */
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int ps_blocked_on; /* what is the process blocked on */
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char ps_state; /* process state */
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char ps_state; /* process state */
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vir_bytes ps_tsize; /* text size (in bytes) */
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char ps_pstate; /* sleep state */
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vir_bytes ps_dsize; /* data size (in bytes) */
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char ps_fstate; /* VFS block state */
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vir_bytes ps_ssize; /* stack size (in bytes) */
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int ps_ftask; /* VFS suspend task (endpoint) */
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phys_bytes ps_vtext; /* virtual text offset */
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vir_bytes ps_memory; /* memory usage */
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phys_bytes ps_vdata; /* virtual data offset */
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int ps_recv; /* process number to receive from (endpoint) */
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phys_bytes ps_vstack; /* virtual stack offset */
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phys_bytes ps_text; /* physical text offset */
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phys_bytes ps_data; /* physical data offset */
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phys_bytes ps_stack; /* physical stack offset */
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int ps_recv; /* process number to receive from */
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time_t ps_utime; /* accumulated user time */
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time_t ps_utime; /* accumulated user time */
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time_t ps_stime; /* accumulated system time */
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time_t ps_stime; /* accumulated system time */
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char ps_name[PROC_NAME_LEN+1];/* process name */
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char *ps_args; /* concatenated argument string */
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char *ps_args; /* concatenated argument string */
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vir_bytes ps_procargs; /* initial stack frame from PM */
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};
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};
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/* Ps_state field values in pstat struct above */
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#define Z_STATE 'Z' /* Zombie */
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#define W_STATE 'W' /* Waiting */
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#define S_STATE 'S' /* Sleeping */
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#define R_STATE 'R' /* Runnable */
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#define T_STATE 'T' /* stopped (Trace) */
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_PROTOTYPE(void disaster, (int sig ));
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_PROTOTYPE(int main, (int argc, char *argv []));
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_PROTOTYPE(int main, (int argc, char *argv []));
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_PROTOTYPE(char *get_args, (struct pstat *bufp ));
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_PROTOTYPE(void plist, (void));
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_PROTOTYPE(int pstat, (int p_nr, struct pstat *bufp, int Eflag ));
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_PROTOTYPE(int addrread, (int fd, phys_clicks base, vir_bytes addr,
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_PROTOTYPE(int addrread, (int fd, phys_clicks base, vir_bytes addr,
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char *buf, int nbytes ));
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char *buf, int nbytes ));
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_PROTOTYPE(void usage, (const char *pname ));
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_PROTOTYPE(void usage, (const char *pname ));
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@ -197,9 +149,9 @@ _PROTOTYPE(int gettynames, (void));
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*/
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*/
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PRIVATE char *tname(dev_t dev_nr)
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PRIVATE char *tname(dev_t dev_nr)
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{
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{
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int i;
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unsigned int i;
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if (majdev(dev_nr) == TTY_MAJ && mindev(dev_nr) == 0) return "co";
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if (major(dev_nr) == TTY_MAJOR && minor(dev_nr) == 0) return "co";
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for (i = 0; i < n_ttyinfo && ttyinfo[i].tty_name[0] != '\0'; i++)
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for (i = 0; i < n_ttyinfo && ttyinfo[i].tty_name[0] != '\0'; i++)
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if (ttyinfo[i].tty_dev == dev_nr)
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if (ttyinfo[i].tty_dev == dev_nr)
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@ -208,109 +160,101 @@ PRIVATE char *tname(dev_t dev_nr)
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return "?";
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return "?";
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}
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}
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/* Return canonical task name of task p_nr; overwritten on each call (yucch) */
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/* Find a task by its endpoint. */
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PRIVATE char *taskname(int p_nr)
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PRIVATE struct pstat *findtask(endpoint_t endpt)
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{
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{
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int n;
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struct pstat *ps;
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n = _ENDPOINT_P(p_nr) + nr_tasks;
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unsigned int slot;
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if(n < 0 || n >= nr_tasks + nr_procs) {
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return "OUTOFRANGE";
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slot = SLOT_NR(endpt);
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}
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return ps_proc[n].p_name;
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if (slot >= nr_tasks + nr_procs)
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return NULL;
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ps = &ptable[slot];
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if (ps != NULL && ps->ps_endpt == (int) endpt)
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return ps;
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return NULL;
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}
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}
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/* Prrecv prints the RECV field for process with pstat buffer pointer bufp.
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/* Return canonical task name of the given endpoint. */
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PRIVATE char *taskname(endpoint_t endpt)
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{
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struct pstat *ps;
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ps = findtask(endpt);
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return ps ? ps->ps_name : "???";
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}
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/* Prrecv prints the RECV field for process with pstat buffer pointer ps.
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* This is either "ANY", "taskname", or "(blockreason) taskname".
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* This is either "ANY", "taskname", or "(blockreason) taskname".
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*/
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*/
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PRIVATE char *prrecv(struct pstat *bufp)
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PRIVATE char *prrecv(struct pstat *ps)
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{
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{
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char *blkstr, *task; /* reason for blocking and task */
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char *blkstr, *task; /* reason for blocking and task */
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static char recvstr[20];
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static char recvstr[20];
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if (bufp->ps_recv == ANY) return "ANY";
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if (ps->ps_recv == ANY) return "ANY";
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task = taskname(bufp->ps_recv);
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task = taskname(ps->ps_recv);
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if (bufp->ps_state != S_STATE) return task;
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if (ps->ps_state != STATE_SLEEP) return task;
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blkstr = "?";
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blkstr = "?";
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if (bufp->ps_recv == PM_PROC_NR) {
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if (ps->ps_recv == PM_PROC_NR) {
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if (bufp->ps_mflags & PAUSED)
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switch (ps->ps_pstate) {
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blkstr = "pause";
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case PSTATE_PAUSED: blkstr = "pause"; break;
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else if (bufp->ps_mflags & WAITING)
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case PSTATE_WAITING: blkstr = "wait"; break;
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blkstr = "wait";
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case PSTATE_SIGSUSP: blkstr = "sigsusp"; break;
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else if (bufp->ps_mflags & SIGSUSPENDED)
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}
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blkstr = "sigsusp";
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} else if (ps->ps_recv == VFS_PROC_NR) {
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} else if (bufp->ps_recv == VFS_PROC_NR) {
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switch (ps->ps_fstate) {
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switch(bufp->ps_blocked_on) {
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case FSTATE_PIPE: blkstr = "pipe"; break;
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case FP_BLOCKED_ON_PIPE:
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case FSTATE_LOCK: blkstr = "flock"; break;
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blkstr = "pipe";
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case FSTATE_POPEN: blkstr = "popen"; break;
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break;
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case FSTATE_SELECT: blkstr = "select"; break;
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case FP_BLOCKED_ON_POPEN:
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case FSTATE_DOPEN: blkstr = "dopen"; break;
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blkstr = "popen";
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case FSTATE_TASK: blkstr = taskname(ps->ps_ftask); break;
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break;
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default: blkstr = "??"; break;
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case FP_BLOCKED_ON_DOPEN:
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blkstr = "dopen";
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break;
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case FP_BLOCKED_ON_LOCK:
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blkstr = "flock";
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break;
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case FP_BLOCKED_ON_SELECT:
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blkstr = "select";
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break;
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case FP_BLOCKED_ON_OTHER:
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blkstr = taskname(bufp->ps_ftask);
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break;
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case FP_BLOCKED_ON_NONE:
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blkstr = "??";
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break;
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}
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}
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}
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}
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(void) sprintf(recvstr, "(%s) %s", blkstr, task);
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(void) sprintf(recvstr, "(%s) %s", blkstr, task);
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return recvstr;
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return recvstr;
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}
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}
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/* If disaster is called some of the system parameters imported into ps are
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PRIVATE void getkinfo(void)
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* probably wrong. This tends to result in memory faults.
|
|
||||||
*/
|
|
||||||
void disaster(sig)
|
|
||||||
int sig;
|
|
||||||
{
|
{
|
||||||
fprintf(stderr, "Ooops, got signal %d\n", sig);
|
FILE *fp;
|
||||||
fprintf(stderr, "Was ps recompiled since the last kernel change?\n");
|
|
||||||
exit(3);
|
if ((fp = fopen("kinfo", "r")) == NULL)
|
||||||
|
err("Unable to open " _PATH_PROC "/kinfo");
|
||||||
|
|
||||||
|
if (fscanf(fp, "%u %u", &nr_procs, &nr_tasks) != 2)
|
||||||
|
err("Unable to read from " _PATH_PROC "/kinfo");
|
||||||
|
|
||||||
|
fclose(fp);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Main interprets arguments, gets system addresses, opens [k]mem, reads in
|
/* Main interprets arguments, gathers information, and prints a process list.
|
||||||
* process tables from kernel/pm/fs and calls pstat() for relevant entries.
|
|
||||||
*/
|
*/
|
||||||
int main(argc, argv)
|
int main(argc, argv)
|
||||||
int argc;
|
int argc;
|
||||||
char *argv[];
|
char *argv[];
|
||||||
{
|
{
|
||||||
int i;
|
int i;
|
||||||
struct pstat buf;
|
unsigned int n;
|
||||||
int db_fd;
|
struct pstat *ps;
|
||||||
int uid = getuid(); /* real uid of caller */
|
int uid = getuid(); /* real uid of caller */
|
||||||
char *opt;
|
char *opt;
|
||||||
int opt_all = FALSE; /* -a */
|
int opt_all = FALSE; /* -a */
|
||||||
int opt_long = FALSE; /* -l */
|
int opt_long = FALSE; /* -l */
|
||||||
int opt_notty = FALSE; /* -x */
|
int opt_notty = FALSE; /* -x */
|
||||||
int opt_endpoint = FALSE; /* -E */
|
int opt_endpoint = FALSE; /* -E */
|
||||||
char *ke_path; /* paths of kernel, */
|
|
||||||
char *mm_path; /* mm, */
|
|
||||||
char *fs_path; /* and fs used in ps -U */
|
|
||||||
char pid[2 + sizeof(pid_t) * 3];
|
char pid[2 + sizeof(pid_t) * 3];
|
||||||
unsigned long ustime;
|
unsigned long ustime;
|
||||||
char cpu[sizeof(clock_t) * 3 + 1 + 2];
|
char cpu[sizeof(clock_t) * 3 + 1 + 2];
|
||||||
struct kinfo kinfo;
|
|
||||||
int s;
|
|
||||||
u32_t system_hz;
|
|
||||||
|
|
||||||
if(getsysinfo_up(PM_PROC_NR, SIU_SYSTEMHZ, sizeof(system_hz), &system_hz) < 0) {
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
(void) signal(SIGSEGV, disaster); /* catch a common crash */
|
|
||||||
|
|
||||||
/* Parse arguments; a '-' need not be present (V7/BSD compatability) */
|
/* Parse arguments; a '-' need not be present (V7/BSD compatability) */
|
||||||
for (i = 1; i < argc; i++) {
|
for (i = 1; i < argc; i++) {
|
||||||
|
@ -327,57 +271,34 @@ char *argv[];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Open memory devices and get PS info from the kernel */
|
|
||||||
if ((kmemfd = open(KMEM_PATH, O_RDONLY)) == -1) err(KMEM_PATH);
|
|
||||||
if ((memfd = open(MEM_PATH, O_RDONLY)) == -1) err(MEM_PATH);
|
|
||||||
if (gettynames() == -1) err("Can't get tty names");
|
if (gettynames() == -1) err("Can't get tty names");
|
||||||
|
|
||||||
getsysinfo(PM_PROC_NR, SI_KINFO, &kinfo);
|
if (chdir(_PATH_PROC) != 0) err("Can't chdir to /proc");
|
||||||
|
|
||||||
nr_tasks = kinfo.nr_tasks;
|
/* Get information from the proc file system */
|
||||||
nr_procs = kinfo.nr_procs;
|
system_hz = (u32_t) sysconf(_SC_CLK_TCK);
|
||||||
|
|
||||||
/* Allocate memory for process tables */
|
getkinfo();
|
||||||
ps_proc = (struct proc *) malloc((nr_tasks + nr_procs) * sizeof(ps_proc[0]));
|
|
||||||
ps_mproc = (struct mproc *) malloc(nr_procs * sizeof(ps_mproc[0]));
|
|
||||||
ps_fproc = (struct fproc *) malloc(nr_procs * sizeof(ps_fproc[0]));
|
|
||||||
if (ps_proc == NULL || ps_mproc == NULL || ps_fproc == NULL)
|
|
||||||
err("Out of memory");
|
|
||||||
|
|
||||||
if(minix_getkproctab(ps_proc, nr_tasks + nr_procs, 1) < 0) {
|
plist();
|
||||||
fprintf(stderr, "minix_getkproctab failed.\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if(getsysinfo(PM_PROC_NR, SI_PROC_TAB, ps_mproc) < 0) {
|
|
||||||
fprintf(stderr, "getsysinfo() for PM SI_PROC_TAB failed.\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if(getsysinfo(VFS_PROC_NR, SI_PROC_TAB, ps_fproc) < 0) {
|
|
||||||
fprintf(stderr, "getsysinfo() for VFS SI_PROC_TAB failed.\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* We need to know where INIT hangs out. */
|
|
||||||
for (i = VFS_PROC_NR; i < nr_procs; i++) {
|
|
||||||
if (strcmp(ps_proc[nr_tasks + i].p_name, "init") == 0) break;
|
|
||||||
}
|
|
||||||
init_proc_nr = i;
|
|
||||||
|
|
||||||
/* Now loop through process table and handle each entry */
|
/* Now loop through process table and handle each entry */
|
||||||
printf("%s", opt_long ? L_HEADER : S_HEADER);
|
printf("%s", opt_long ? L_HEADER : S_HEADER);
|
||||||
for (i = -nr_tasks; i < nr_procs; i++) {
|
for (n = 0; n < nr_procs + nr_tasks; n++) {
|
||||||
if (pstat(i, &buf, opt_endpoint) != -1 &&
|
ps = &ptable[n];
|
||||||
(opt_all || buf.ps_euid == uid || buf.ps_ruid == uid) &&
|
if (ps->ps_endpt == NONE)
|
||||||
(opt_notty || majdev(buf.ps_dev) == TTY_MAJ)) {
|
continue;
|
||||||
if (buf.ps_pid == 0 && i != PM_PROC_NR) {
|
|
||||||
sprintf(pid, "(%d)", i);
|
if ((opt_all || ps->ps_euid == uid || ps->ps_ruid == uid) &&
|
||||||
|
(opt_notty || major(ps->ps_dev) == TTY_MAJOR)) {
|
||||||
|
if (ps->ps_task) {
|
||||||
|
sprintf(pid, "(%d)", ps->ps_pid);
|
||||||
} else {
|
} else {
|
||||||
sprintf(pid, "%d", buf.ps_pid);
|
sprintf(pid, "%d",
|
||||||
|
opt_endpoint ? ps->ps_endpt : ps->ps_pid);
|
||||||
}
|
}
|
||||||
|
|
||||||
ustime = (buf.ps_utime + buf.ps_stime) / system_hz;
|
ustime = (ps->ps_utime + ps->ps_stime) / system_hz;
|
||||||
if (ustime < 60 * 60) {
|
if (ustime < 60 * 60) {
|
||||||
sprintf(cpu, "%2lu:%02lu", ustime / 60, ustime % 60);
|
sprintf(cpu, "%2lu:%02lu", ustime / 60, ustime % 60);
|
||||||
} else
|
} else
|
||||||
|
@ -389,196 +310,181 @@ char *argv[];
|
||||||
}
|
}
|
||||||
|
|
||||||
if (opt_long) printf(L_FORMAT,
|
if (opt_long) printf(L_FORMAT,
|
||||||
buf.ps_flags, buf.ps_state,
|
ps->ps_state,
|
||||||
buf.ps_euid, pid, buf.ps_ppid,
|
ps->ps_euid, pid, ps->ps_ppid,
|
||||||
buf.ps_pgrp,
|
ps->ps_pgrp,
|
||||||
#if 0
|
off_to_k(ps->ps_memory),
|
||||||
off_to_k((buf.ps_tsize
|
(ps->ps_recv != NONE ? prrecv(ps) : ""),
|
||||||
+ buf.ps_stack - buf.ps_data
|
tname((dev_t) ps->ps_dev),
|
||||||
+ buf.ps_ssize)),
|
|
||||||
#else
|
|
||||||
0,
|
|
||||||
#endif
|
|
||||||
(buf.ps_flags & RTS_RECEIVING ?
|
|
||||||
prrecv(&buf) :
|
|
||||||
""),
|
|
||||||
tname((dev_t) buf.ps_dev),
|
|
||||||
cpu,
|
cpu,
|
||||||
i <= init_proc_nr || buf.ps_args == NULL
|
ps->ps_args != NULL ? ps->ps_args : ps->ps_name
|
||||||
? taskname(i) : buf.ps_args);
|
);
|
||||||
else
|
else
|
||||||
printf(S_FORMAT,
|
printf(S_FORMAT,
|
||||||
pid, tname((dev_t) buf.ps_dev),
|
pid, tname((dev_t) ps->ps_dev),
|
||||||
cpu,
|
cpu,
|
||||||
i <= init_proc_nr || buf.ps_args == NULL
|
ps->ps_args != NULL ? ps->ps_args : ps->ps_name
|
||||||
? taskname(i) : buf.ps_args);
|
);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return(0);
|
return(0);
|
||||||
}
|
}
|
||||||
|
|
||||||
char *get_args(bufp)
|
/* Get_args obtains the command line of a process. */
|
||||||
struct pstat *bufp;
|
char *get_args(struct pstat *ps)
|
||||||
{
|
{
|
||||||
int nargv;
|
char path[PATH_MAX], buf[4096];
|
||||||
int cnt; /* # of bytes read from stack frame */
|
ssize_t i, n;
|
||||||
int neos; /* # of '\0's seen in argv string space */
|
int fd;
|
||||||
phys_bytes iframe;
|
|
||||||
long l;
|
|
||||||
char *cp, *args;
|
|
||||||
static union stack {
|
|
||||||
vir_bytes stk_i;
|
|
||||||
char *stk_cp;
|
|
||||||
char stk_c;
|
|
||||||
} stk[ARG_MAX / sizeof(char *)];
|
|
||||||
union stack *sp;
|
|
||||||
|
|
||||||
/* Phys address of the original stack frame. */
|
/* Get a reasonable subset of the contents of the 'cmdline' file from procfs.
|
||||||
iframe = bufp->ps_procargs - bufp->ps_vstack + bufp->ps_stack;
|
* It contains all arguments, separated and terminated by null characters.
|
||||||
|
*/
|
||||||
|
sprintf(path, "%d/cmdline", ps->ps_pid);
|
||||||
|
|
||||||
/* Calculate the number of bytes to read from user stack */
|
fd = open(path, O_RDONLY);
|
||||||
l = (phys_bytes) bufp->ps_ssize - (iframe - bufp->ps_stack);
|
if (fd < 0) return NULL;
|
||||||
if (l > ARG_MAX) l = ARG_MAX;
|
|
||||||
cnt = l;
|
n = read(fd, buf, sizeof(buf));
|
||||||
|
if (n <= 0) {
|
||||||
|
close(fd);
|
||||||
|
|
||||||
/* Get cnt bytes from user initial stack to local stack buffer */
|
|
||||||
if (lseek(memfd, (off_t) iframe, 0) < 0)
|
|
||||||
return NULL;
|
return NULL;
|
||||||
|
|
||||||
if ( read(memfd, (char *)stk, cnt) != cnt )
|
|
||||||
return NULL;
|
|
||||||
|
|
||||||
sp = stk;
|
|
||||||
nargv = (int) sp[0].stk_i; /* number of argv arguments */
|
|
||||||
|
|
||||||
/* See if argv[0] is with the bytes we read in */
|
|
||||||
l = (long) sp[1].stk_cp - (long) bufp->ps_procargs;
|
|
||||||
|
|
||||||
if ( ( l < 0 ) || ( l > cnt ) )
|
|
||||||
return NULL;
|
|
||||||
|
|
||||||
/* l is the offset of the argv[0] argument */
|
|
||||||
/* change for concatenation the '\0' to space, for nargv elements */
|
|
||||||
|
|
||||||
args = &((char *) stk)[(int)l];
|
|
||||||
neos = 0;
|
|
||||||
for (cp = args; cp < &((char *) stk)[cnt]; cp++)
|
|
||||||
if (*cp == '\0')
|
|
||||||
if (++neos >= nargv)
|
|
||||||
break;
|
|
||||||
else
|
|
||||||
*cp = ' ';
|
|
||||||
if (cp == args) return NULL;
|
|
||||||
*cp = '\0';
|
|
||||||
|
|
||||||
return args;
|
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Pstat collects info on process number p_nr and returns it in buf.
|
close(fd);
|
||||||
* It is assumed that tasks do not have entries in fproc/mproc.
|
|
||||||
*/
|
|
||||||
int pstat(int p_nr, struct pstat *bufp, int endpoints)
|
|
||||||
{
|
|
||||||
int p_ki = p_nr + nr_tasks; /* kernel proc index */
|
|
||||||
|
|
||||||
if (p_nr < -nr_tasks || p_nr >= nr_procs) {
|
/* Replace all argument separating null characters with spaces. */
|
||||||
fprintf(stderr, "pstat: %d out of range\n", p_nr);
|
for (i = 0; i < n-1; i++)
|
||||||
|
if (buf[i] == '\0')
|
||||||
|
buf[i] = ' ';
|
||||||
|
|
||||||
|
/* The last character should already be null, except if it got cut off. */
|
||||||
|
buf[n-1] = '\0';
|
||||||
|
|
||||||
|
return strdup(buf);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Pstat obtains the actual information for the given process, and stores it
|
||||||
|
* in the pstat structure. The outside world may change while we are doing
|
||||||
|
* this, so nothing is reported in case any of the calls fail.
|
||||||
|
*/
|
||||||
|
int pstat(struct pstat *ps, pid_t pid)
|
||||||
|
{
|
||||||
|
FILE *fp;
|
||||||
|
int version, ruid, euid, dev;
|
||||||
|
char type, path[PATH_MAX], name[256];
|
||||||
|
|
||||||
|
ps->ps_pid = pid;
|
||||||
|
ps->ps_next = NULL;
|
||||||
|
|
||||||
|
sprintf(path, "%d/psinfo", pid);
|
||||||
|
|
||||||
|
if ((fp = fopen(path, "r")) == NULL)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if (fscanf(fp, "%d", &version) != 1) {
|
||||||
|
fclose(fp);
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (isemptyp(&ps_proc[p_ki])
|
/* The psinfo file's version must match what we expect. */
|
||||||
&& !(ps_mproc[p_nr].mp_flags & IN_USE)) {
|
if (version != PSINFO_VERSION) {
|
||||||
|
fputs("procfs version mismatch!\n", stderr);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (fscanf(fp, " %c %d %255s %c %d %*d %lu %lu %*u %*u",
|
||||||
|
&type, &ps->ps_endpt, name, &ps->ps_state,
|
||||||
|
&ps->ps_recv, &ps->ps_utime, &ps->ps_stime) != 7) {
|
||||||
|
|
||||||
|
fclose(fp);
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
bufp->ps_flags = ps_proc[p_ki].p_rts_flags;
|
strncpy(ps->ps_name, name, sizeof(ps->ps_name)-1);
|
||||||
|
ps->ps_name[sizeof(ps->ps_name)-1] = 0;
|
||||||
|
|
||||||
if (p_nr >= low_user) {
|
ps->ps_task = type == TYPE_TASK;
|
||||||
bufp->ps_dev = ps_fproc[p_nr].fp_tty;
|
|
||||||
bufp->ps_ftask = ps_fproc[p_nr].fp_task;
|
if (!ps->ps_task) {
|
||||||
bufp->ps_blocked_on = ps_fproc[p_nr].fp_blocked_on;
|
if (fscanf(fp, " %lu %*u %*u %c %d %u %u %u %*d %c %d %u",
|
||||||
|
&ps->ps_memory, &ps->ps_pstate, &ps->ps_ppid,
|
||||||
|
&ruid, &euid, &ps->ps_pgrp, &ps->ps_fstate,
|
||||||
|
&ps->ps_ftask, &dev) != 9) {
|
||||||
|
|
||||||
|
fclose(fp);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
ps->ps_ruid = ruid;
|
||||||
|
ps->ps_euid = euid;
|
||||||
|
ps->ps_dev = dev;
|
||||||
} else {
|
} else {
|
||||||
bufp->ps_dev = 0;
|
ps->ps_memory = 0L;
|
||||||
bufp->ps_ftask = 0;
|
ps->ps_pstate = PSTATE_NONE;
|
||||||
bufp->ps_blocked_on = FP_BLOCKED_ON_NONE;
|
ps->ps_ppid = 0;
|
||||||
|
ps->ps_ruid = 0;
|
||||||
|
ps->ps_euid = 0;
|
||||||
|
ps->ps_pgrp = 0;
|
||||||
|
ps->ps_fstate = FSTATE_NONE;
|
||||||
|
ps->ps_ftask = NONE;
|
||||||
|
ps->ps_dev = NO_DEV;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (p_nr >= 0) {
|
fclose(fp);
|
||||||
bufp->ps_ruid = ps_mproc[p_nr].mp_realuid;
|
|
||||||
bufp->ps_euid = ps_mproc[p_nr].mp_effuid;
|
|
||||||
if(endpoints) bufp->ps_pid = ps_proc[p_ki].p_endpoint;
|
|
||||||
else bufp->ps_pid = ps_mproc[p_nr].mp_pid;
|
|
||||||
bufp->ps_ppid = ps_mproc[ps_mproc[p_nr].mp_parent].mp_pid;
|
|
||||||
/* Assume no parent when the parent and the child share the same pid.
|
|
||||||
* This is what PM currently assumes.
|
|
||||||
*/
|
|
||||||
if(bufp->ps_ppid == bufp->ps_pid) {
|
|
||||||
bufp->ps_ppid = NO_PID;
|
|
||||||
}
|
|
||||||
bufp->ps_pgrp = ps_mproc[p_nr].mp_procgrp;
|
|
||||||
bufp->ps_mflags = ps_mproc[p_nr].mp_flags;
|
|
||||||
} else {
|
|
||||||
if(endpoints) bufp->ps_pid = ps_proc[p_ki].p_endpoint;
|
|
||||||
else bufp->ps_pid = NO_PID;
|
|
||||||
bufp->ps_ppid = NO_PID;
|
|
||||||
bufp->ps_ruid = bufp->ps_euid = 0;
|
|
||||||
bufp->ps_pgrp = 0;
|
|
||||||
bufp->ps_mflags = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* State is interpretation of combined kernel/mm flags for non-tasks */
|
if (ps->ps_state == STATE_ZOMBIE)
|
||||||
if (p_nr >= low_user) { /* non-tasks */
|
ps->ps_args = "<defunct>";
|
||||||
if (ps_mproc[p_nr].mp_flags & ZOMBIE)
|
else if (!ps->ps_task)
|
||||||
bufp->ps_state = Z_STATE; /* zombie */
|
ps->ps_args = get_args(ps);
|
||||||
else if (ps_mproc[p_nr].mp_flags & STOPPED)
|
|
||||||
bufp->ps_state = T_STATE; /* stopped (traced) */
|
|
||||||
else if (ps_proc[p_ki].p_rts_flags == 0)
|
|
||||||
bufp->ps_state = R_STATE; /* in run-queue */
|
|
||||||
else if (ps_mproc[p_nr].mp_flags & (WAITING | PAUSED | SIGSUSPENDED) ||
|
|
||||||
fp_is_blocked(&ps_fproc[p_nr]))
|
|
||||||
bufp->ps_state = S_STATE; /* sleeping */
|
|
||||||
else
|
else
|
||||||
bufp->ps_state = W_STATE; /* a short wait */
|
ps->ps_args = NULL;
|
||||||
} else { /* tasks are simple */
|
|
||||||
if (ps_proc[p_ki].p_rts_flags == 0)
|
|
||||||
bufp->ps_state = R_STATE; /* in run-queue */
|
|
||||||
else
|
|
||||||
bufp->ps_state = W_STATE; /* other i.e. waiting */
|
|
||||||
}
|
|
||||||
|
|
||||||
bufp->ps_tsize = (size_t) ps_proc[p_ki].p_memmap[T].mem_len << CLICK_SHIFT;
|
|
||||||
bufp->ps_dsize = (size_t) ps_proc[p_ki].p_memmap[D].mem_len << CLICK_SHIFT;
|
|
||||||
bufp->ps_ssize = (size_t) ps_proc[p_ki].p_memmap[S].mem_len << CLICK_SHIFT;
|
|
||||||
bufp->ps_vtext = (off_t) ps_proc[p_ki].p_memmap[T].mem_vir << CLICK_SHIFT;
|
|
||||||
bufp->ps_vdata = (off_t) ps_proc[p_ki].p_memmap[D].mem_vir << CLICK_SHIFT;
|
|
||||||
bufp->ps_vstack = (off_t) ps_proc[p_ki].p_memmap[S].mem_vir << CLICK_SHIFT;
|
|
||||||
bufp->ps_text = (off_t) ps_proc[p_ki].p_memmap[T].mem_phys << CLICK_SHIFT;
|
|
||||||
bufp->ps_data = (off_t) ps_proc[p_ki].p_memmap[D].mem_phys << CLICK_SHIFT;
|
|
||||||
bufp->ps_stack = (off_t) ps_proc[p_ki].p_memmap[S].mem_phys << CLICK_SHIFT;
|
|
||||||
|
|
||||||
bufp->ps_recv = _ENDPOINT_P(ps_proc[p_ki].p_getfrom_e);
|
|
||||||
|
|
||||||
bufp->ps_utime = ps_proc[p_ki].p_user_time;
|
|
||||||
bufp->ps_stime = ps_proc[p_ki].p_sys_time;
|
|
||||||
|
|
||||||
bufp->ps_procargs = ps_mproc[p_nr].mp_frame_addr;
|
|
||||||
|
|
||||||
if (bufp->ps_state == Z_STATE)
|
|
||||||
bufp->ps_args = "<defunct>";
|
|
||||||
else if (p_nr > init_proc_nr)
|
|
||||||
bufp->ps_args = get_args(bufp);
|
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Addrread reads nbytes from offset addr to click base of fd into buf. */
|
/* Plist creates a list of processes with status information. */
|
||||||
int addrread(int fd, phys_clicks base, vir_bytes addr, char *buf, int nbytes)
|
void plist(void)
|
||||||
{
|
{
|
||||||
if (lseek(fd, ((off_t) base << CLICK_SHIFT) + addr, 0) < 0)
|
DIR *p_dir;
|
||||||
return -1;
|
struct dirent *p_ent;
|
||||||
|
struct pstat pbuf;
|
||||||
|
pid_t pid;
|
||||||
|
char *end;
|
||||||
|
unsigned int slot;
|
||||||
|
|
||||||
return read(fd, buf, nbytes);
|
/* Allocate a table for process information. Initialize all slots' endpoints
|
||||||
|
* to NONE, indicating those slots are not used.
|
||||||
|
*/
|
||||||
|
if ((ptable = malloc((nr_tasks + nr_procs) * sizeof(struct pstat))) == NULL)
|
||||||
|
err("Out of memory!");
|
||||||
|
|
||||||
|
for (slot = 0; slot < nr_tasks + nr_procs; slot++)
|
||||||
|
ptable[slot].ps_endpt = NONE;
|
||||||
|
|
||||||
|
/* Fill in the table slots for all existing processes, by retrieving all PID
|
||||||
|
* entries from the /proc directory.
|
||||||
|
*/
|
||||||
|
p_dir = opendir(".");
|
||||||
|
|
||||||
|
if (p_dir == NULL) err("Can't open " _PATH_PROC);
|
||||||
|
|
||||||
|
p_ent = readdir(p_dir);
|
||||||
|
while (p_ent != NULL) {
|
||||||
|
pid = strtol(p_ent->d_name, &end, 10);
|
||||||
|
|
||||||
|
if (!end[0] && pid != 0 && !pstat(&pbuf, pid)) {
|
||||||
|
slot = SLOT_NR(pbuf.ps_endpt);
|
||||||
|
|
||||||
|
if (slot < nr_tasks + nr_procs)
|
||||||
|
memcpy(&ptable[slot], &pbuf, sizeof(pbuf));
|
||||||
|
}
|
||||||
|
|
||||||
|
p_ent = readdir(p_dir);
|
||||||
|
}
|
||||||
|
|
||||||
|
closedir(p_dir);
|
||||||
}
|
}
|
||||||
|
|
||||||
void usage(const char *pname)
|
void usage(const char *pname)
|
||||||
|
@ -605,7 +511,7 @@ int gettynames(void)
|
||||||
static char dev_path[] = "/dev/";
|
static char dev_path[] = "/dev/";
|
||||||
struct stat statbuf;
|
struct stat statbuf;
|
||||||
static char path[sizeof(dev_path) + NAME_MAX];
|
static char path[sizeof(dev_path) + NAME_MAX];
|
||||||
int index;
|
unsigned int index;
|
||||||
struct ttyent *ttyp;
|
struct ttyent *ttyp;
|
||||||
|
|
||||||
index = 0;
|
index = 0;
|
||||||
|
|
|
@ -29,17 +29,7 @@ ps \- process status
|
||||||
processes are listed in short format (the PID, TTY, TIME and CMD fields as
|
processes are listed in short format (the PID, TTY, TIME and CMD fields as
|
||||||
explained below). The long listing contains:
|
explained below). The long listing contains:
|
||||||
.PP
|
.PP
|
||||||
.ta 0.5i 1.0i
|
ST
|
||||||
F Kernel flags:
|
|
||||||
001: free slot
|
|
||||||
002: no memory map
|
|
||||||
004: sending;
|
|
||||||
010: receiving
|
|
||||||
020: inform on pending signals
|
|
||||||
040: pending signals
|
|
||||||
100: being traced.
|
|
||||||
.PP
|
|
||||||
S
|
|
||||||
State:
|
State:
|
||||||
R: runnable
|
R: runnable
|
||||||
W: waiting (on a message)
|
W: waiting (on a message)
|
||||||
|
|
Loading…
Reference in a new issue