595d73a896
- introduce PROC_STOPPED flag, which tracks whether the process is stopped on PROC_STOP in the kernel, rather than implicitly deriving this from PM_SIG_PENDING; - make the process resumption test based on current state rather than state transitions; - add and clarify several flag checks in the signal handling code; - add test79 to test signal handling robustness. Change-Id: Ic8c7527095035b300b56f2ab1b9dd190bd4bf001
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/* This file contains procedures to dump to PM' data structures.
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*
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* The entry points into this file are
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* mproc_dmp: display PM process table
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*
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* Created:
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* May 11, 2005: by Jorrit N. Herder
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*/
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#include "inc.h"
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#include "../pm/mproc.h"
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#include <minix/timers.h>
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#include <minix/config.h>
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#include <minix/type.h>
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struct mproc mproc[NR_PROCS];
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/*===========================================================================*
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* mproc_dmp *
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*===========================================================================*/
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static char *flags_str(int flags)
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{
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static char str[13];
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str[0] = (flags & WAITING) ? 'W' : '-';
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str[1] = (flags & ZOMBIE) ? 'Z' : '-';
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str[2] = (flags & ALARM_ON) ? 'A' : '-';
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str[3] = (flags & EXITING) ? 'E' : '-';
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str[4] = (flags & TRACE_STOPPED) ? 'T' : '-';
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str[5] = (flags & SIGSUSPENDED) ? 'U' : '-';
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str[6] = (flags & REPLY) ? 'R' : '-';
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str[7] = (flags & VFS_CALL) ? 'F' : '-';
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str[8] = (flags & PROC_STOPPED) ? 's' : '-';
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str[9] = (flags & PRIV_PROC) ? 'p' : '-';
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str[10] = (flags & PARTIAL_EXEC) ? 'x' : '-';
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str[11] = (flags & DELAY_CALL) ? 'd' : '-';
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str[12] = '\0';
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return str;
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}
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void mproc_dmp()
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{
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struct mproc *mp;
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int i, n=0;
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static int prev_i = 0;
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if (getsysinfo(PM_PROC_NR, SI_PROC_TAB, mproc, sizeof(mproc)) != OK) {
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printf("Error obtaining table from PM. Perhaps recompile IS?\n");
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return;
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}
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printf("Process manager (PM) process table dump\n");
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printf("-process- -nr-pnr-tnr- --pid--ppid--pgrp- -uid-- -gid-- -nice- -flags------\n");
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for (i=prev_i; i<NR_PROCS; i++) {
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mp = &mproc[i];
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if (mp->mp_pid == 0 && i != PM_PROC_NR) continue;
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if (++n > 22) break;
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printf("%8.8s %4d%4d%4d %5d %5d %5d ",
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mp->mp_name, i, mp->mp_parent, mp->mp_tracer, mp->mp_pid, mproc[mp->mp_parent].mp_pid, mp->mp_procgrp);
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printf("%2d(%2d) %2d(%2d) ",
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mp->mp_realuid, mp->mp_effuid, mp->mp_realgid, mp->mp_effgid);
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printf(" %3d %s ",
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mp->mp_nice, flags_str(mp->mp_flags));
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printf("\n");
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}
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if (i >= NR_PROCS) i = 0;
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else printf("--more--\r");
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prev_i = i;
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}
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/*===========================================================================*
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* sigaction_dmp *
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*===========================================================================*/
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void sigaction_dmp()
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{
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struct mproc *mp;
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int i, n=0;
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static int prev_i = 0;
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clock_t uptime;
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if (getsysinfo(PM_PROC_NR, SI_PROC_TAB, mproc, sizeof(mproc)) != OK) {
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printf("Error obtaining table from PM. Perhaps recompile IS?\n");
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return;
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}
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getticks(&uptime);
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printf("Process manager (PM) signal action dump\n");
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printf("-process- -nr- --ignore- --catch- --block- -pending- -alarm---\n");
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for (i=prev_i; i<NR_PROCS; i++) {
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mp = &mproc[i];
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if (mp->mp_pid == 0 && i != PM_PROC_NR) continue;
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if (++n > 22) break;
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printf("%8.8s %3d ", mp->mp_name, i);
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printf(" %08lx %08lx %08lx ",
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mp->mp_ignore, mp->mp_catch, mp->mp_sigmask);
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printf("%08lx ", mp->mp_sigpending);
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if (mp->mp_flags & ALARM_ON) printf("%8lu", mp->mp_timer.tmr_exp_time-uptime);
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else printf(" -");
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printf("\n");
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}
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if (i >= NR_PROCS) i = 0;
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else printf("--more--\r");
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prev_i = i;
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}
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