- rip = u.u_procp;
-#if defined(tahoe)
- rpp->p_ckey = rip->p_ckey;
- rpp->p_dkey = 0;
-#endif
- rpp->p_stat = SIDL;
- timerclear(&rpp->p_realtimer.it_value);
- rpp->p_flag = SLOAD | (rip->p_flag & (SPAGV|SHPUX));
- if (rip->p_session->s_ttyvp != NULL && rip->p_flag & SCTTY)
- rpp->p_flag |= SCTTY;
- if (isvfork) {
- rpp->p_flag |= SVFORK;
- rpp->p_ndx = rip->p_ndx;
- } else
- rpp->p_ndx = rpp - proc;
- bcopy(rip->p_comm, rpp->p_comm, MAXCOMLEN+1);
- bcopy(rip->p_logname, rpp->p_logname, MAXLOGNAME);
- rpp->p_uid = rip->p_uid;
- rpp->p_ruid = rip->p_ruid;
- rpp->p_rgid = rip->p_rgid;
- rpp->p_pgrp = rip->p_pgrp;
- rpp->p_pgrpnxt = rip->p_pgrpnxt;
- rip->p_pgrpnxt = rpp;
- rpp->p_nice = rip->p_nice;
- rpp->p_textp = isvfork ? 0 : rip->p_textp;
- rpp->p_pid = mpid;
- rpp->p_ppid = rip->p_pid;
- rpp->p_pptr = rip;
- rpp->p_osptr = rip->p_cptr;
- if (rip->p_cptr)
- rip->p_cptr->p_ysptr = rpp;
- rpp->p_ysptr = NULL;
- rpp->p_cptr = NULL;
- rip->p_cptr = rpp;
- rpp->p_time = 0;
- bzero((caddr_t)&rpp->p_utime, sizeof (struct timeval));
- bzero((caddr_t)&rpp->p_stime, sizeof (struct timeval));
- rpp->p_cpu = 0;
- rpp->p_sigmask = rip->p_sigmask;
- rpp->p_sigcatch = rip->p_sigcatch;
- rpp->p_sigignore = rip->p_sigignore;
- /* take along any pending signals like stops? */
- if (isvfork) {
- rpp->p_tsize = rpp->p_dsize = rpp->p_mmsize = rpp->p_ssize = 0;
- rpp->p_szpt = clrnd(ctopt(HIGHPAGES));
- forkstat.cntvfork++;
- forkstat.sizvfork += rip->p_dsize + rip->p_ssize;
- } else {
- rpp->p_tsize = rip->p_tsize;
- rpp->p_dsize = rip->p_dsize;
- rpp->p_mmsize = rip->p_mmsize;
- rpp->p_ssize = rip->p_ssize;
- rpp->p_szpt = rip->p_szpt;
- forkstat.cntfork++;
- forkstat.sizfork += rip->p_dsize + rip->p_ssize;
- }
-#ifdef KTRACE
- if (rip->p_traceflag&KTRFAC_INHERIT) {
- rpp->p_traceflag = rip->p_traceflag;
- if ((rpp->p_tracep = rip->p_tracep) != NULL)
- VREF(rpp->p_tracep);
- } else {
- rpp->p_tracep = NULL;
- rpp->p_traceflag = 0;
- }
-#endif
- rpp->p_rssize = 0;
- rpp->p_maxrss = rip->p_maxrss;
- rpp->p_wchan = 0;
- rpp->p_slptime = 0;
- rpp->p_pctcpu = 0;
- rpp->p_cpticks = 0;
- {
- struct proc **hash = &pidhash[PIDHASH(rpp->p_pid)];
+ bzero(&p2->p_startzero,
+ (unsigned) ((caddr_t)&p2->p_endzero - (caddr_t)&p2->p_startzero));
+ bcopy(&p1->p_startcopy, &p2->p_startcopy,
+ (unsigned) ((caddr_t)&p2->p_endcopy - (caddr_t)&p2->p_startcopy));
+
+ /*
+ * Duplicate sub-structures as needed.
+ * Increase reference counts on shared objects.
+ * The p_stats and p_sigacts substructs are set in vm_fork.
+ */
+ p2->p_flag = P_INMEM;
+ if (p1->p_flag & P_PROFIL)
+ startprofclock(p2);
+ MALLOC(p2->p_cred, struct pcred *, sizeof(struct pcred),
+ M_SUBPROC, M_WAITOK);
+ bcopy(p1->p_cred, p2->p_cred, sizeof(*p2->p_cred));
+ p2->p_cred->p_refcnt = 1;
+ crhold(p1->p_ucred);