1 /*- 2 * Copyright (c) 2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Simon 'corecode' Schubert <corecode@fs.ei.tum.de> 6 * by Thomas E. Spanjaard <tgen@netphreax.net> 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 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 3. Neither the name of The DragonFly Project nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific, prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 32 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $DragonFly: src/sys/kern/kern_kinfo.c,v 1.16 2007/10/21 16:45:17 dillon Exp $ 36 */ 37 38 /* 39 * This is a source file used by both the kernel and libkvm. 40 */ 41 42 #ifndef _KERNEL 43 #define _KERNEL_STRUCTURES 44 #endif 45 46 #include <sys/proc.h> 47 #include <vm/vm_map.h> 48 #include <sys/kinfo.h> 49 #include <sys/tty.h> 50 #include <sys/conf.h> 51 #include <sys/jail.h> 52 #include <sys/globaldata.h> 53 #ifdef _KERNEL 54 #include <sys/systm.h> 55 #else 56 #include <string.h> 57 #endif 58 59 60 /* 61 * Fill in a struct kinfo_proc. 62 */ 63 void 64 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp) 65 { 66 struct session *sess; 67 struct pgrp *pgrp; 68 69 /* 70 * NOTE: pgrp and sess can wind up NULL if we caught a process 71 * in the middle of exiting. 72 */ 73 pgrp = p->p_pgrp; 74 sess = pgrp ? pgrp->pg_session : NULL; 75 76 bzero(kp, sizeof(*kp)); 77 78 kp->kp_paddr = (uintptr_t)p; 79 kp->kp_fd = (uintptr_t)p->p_fd; 80 81 kp->kp_flags = p->p_flag; 82 kp->kp_stat = p->p_stat; 83 kp->kp_lock = p->p_lock; 84 kp->kp_acflag = p->p_acflag; 85 kp->kp_traceflag = p->p_traceflag; 86 kp->kp_siglist = p->p_siglist; 87 if (p->p_sigacts) { 88 kp->kp_sigignore = p->p_sigignore; /* p_sigacts-> */ 89 kp->kp_sigcatch = p->p_sigcatch; /* p_sigacts-> */ 90 kp->kp_sigflag = p->p_sigacts->ps_flag; 91 } 92 kp->kp_start = p->p_start; 93 94 strncpy(kp->kp_comm, p->p_comm, sizeof(kp->kp_comm) - 1); 95 kp->kp_comm[sizeof(kp->kp_comm) - 1] = 0; 96 97 kp->kp_uid = p->p_ucred->cr_uid; 98 kp->kp_ngroups = p->p_ucred->cr_ngroups; 99 bcopy(p->p_ucred->cr_groups, kp->kp_groups, 100 NGROUPS * sizeof(kp->kp_groups[0])); 101 kp->kp_ruid = p->p_ucred->cr_ruid; 102 kp->kp_svuid = p->p_ucred->cr_svuid; 103 kp->kp_rgid = p->p_ucred->cr_rgid; 104 kp->kp_svgid = p->p_ucred->cr_svgid; 105 106 kp->kp_pid = p->p_pid; 107 if (p->p_oppid != 0) 108 kp->kp_ppid = p->p_oppid; 109 else 110 kp->kp_ppid = p->p_pptr != NULL ? p->p_pptr->p_pid : -1; 111 if (pgrp) { 112 kp->kp_pgid = pgrp->pg_id; 113 kp->kp_jobc = pgrp->pg_jobc; 114 } 115 if (sess) { 116 kp->kp_sid = sess->s_sid; 117 bcopy(sess->s_login, kp->kp_login, MAXLOGNAME); 118 if (sess->s_ttyvp != NULL) 119 kp->kp_auxflags |= KI_CTTY; 120 if (SESS_LEADER(p)) 121 kp->kp_auxflags |= KI_SLEADER; 122 } 123 if (sess && (p->p_flag & P_CONTROLT) != 0 && sess->s_ttyp != NULL) { 124 kp->kp_tdev = dev2udev(sess->s_ttyp->t_dev); 125 if (sess->s_ttyp->t_pgrp != NULL) 126 kp->kp_tpgid = sess->s_ttyp->t_pgrp->pg_id; 127 else 128 kp->kp_tpgid = -1; 129 if (sess->s_ttyp->t_session != NULL) 130 kp->kp_tsid = sess->s_ttyp->t_session->s_sid; 131 else 132 kp->kp_tsid = -1; 133 } else { 134 kp->kp_tdev = NOUDEV; 135 } 136 kp->kp_exitstat = p->p_xstat; 137 kp->kp_nthreads = p->p_nthreads; 138 kp->kp_nice = p->p_nice; 139 kp->kp_swtime = p->p_swtime; 140 141 kp->kp_vm_map_size = p->p_vmspace->vm_map.size; 142 kp->kp_vm_rssize = vmspace_resident_count(p->p_vmspace); 143 kp->kp_vm_swrss = p->p_vmspace->vm_swrss; 144 kp->kp_vm_tsize = p->p_vmspace->vm_tsize; 145 kp->kp_vm_dsize = p->p_vmspace->vm_dsize; 146 kp->kp_vm_ssize = p->p_vmspace->vm_ssize; 147 148 if (jailed(p->p_ucred)) 149 kp->kp_jailid = p->p_ucred->cr_prison->pr_id; 150 151 kp->kp_ru = p->p_ru; 152 kp->kp_ru = p->p_cru; 153 } 154 155 /* 156 * Fill in a struct kinfo_lwp. 157 */ 158 void 159 fill_kinfo_lwp(struct lwp *lwp, struct kinfo_lwp *kl) 160 { 161 bzero(kl, sizeof(*kl)); 162 163 kl->kl_pid = lwp->lwp_proc->p_pid; 164 kl->kl_tid = lwp->lwp_tid; 165 166 kl->kl_flags = lwp->lwp_flag; 167 kl->kl_stat = lwp->lwp_stat; 168 kl->kl_lock = lwp->lwp_lock; 169 kl->kl_tdflags = lwp->lwp_thread->td_flags; 170 171 /* 172 * The process/lwp stat may not reflect whether the process is 173 * actually sleeping or not if the related thread was directly 174 * descheduled by LWKT. Adjust the stat if the thread is not 175 * runnable and not waiting to be scheduled on a cpu by the 176 * user process scheduler. 177 */ 178 if (kl->kl_stat == LSRUN) { 179 if ((kl->kl_tdflags & TDF_RUNQ) == 0 && 180 (lwp->lwp_flag & LWP_ONRUNQ) == 0) { 181 kl->kl_stat = LSSLEEP; 182 } 183 } 184 #ifdef SMP 185 kl->kl_mpcount = lwp->lwp_thread->td_mpcount; 186 #else 187 kl->kl_mpcount = 0; 188 #endif 189 190 kl->kl_prio = lwp->lwp_usdata.bsd4.priority; /* XXX TGEN dangerous assumption */ 191 kl->kl_tdprio = lwp->lwp_thread->td_pri; 192 kl->kl_rtprio = lwp->lwp_rtprio; 193 194 kl->kl_uticks = lwp->lwp_thread->td_uticks; 195 kl->kl_sticks = lwp->lwp_thread->td_sticks; 196 kl->kl_iticks = lwp->lwp_thread->td_iticks; 197 kl->kl_cpticks = lwp->lwp_cpticks; 198 kl->kl_pctcpu = lwp->lwp_pctcpu; 199 kl->kl_slptime = lwp->lwp_slptime; 200 kl->kl_origcpu = lwp->lwp_usdata.bsd4.origcpu; /* XXX TGEN same */ 201 kl->kl_estcpu = lwp->lwp_usdata.bsd4.estcpu; 202 kl->kl_cpuid = lwp->lwp_thread->td_gd->gd_cpuid; 203 204 kl->kl_ru = lwp->lwp_ru; 205 206 kl->kl_siglist = lwp->lwp_siglist; 207 kl->kl_sigmask = lwp->lwp_sigmask; 208 209 kl->kl_wchan = (uintptr_t)lwp->lwp_thread->td_wchan; 210 if (lwp->lwp_thread->td_wmesg) { 211 strncpy(kl->kl_wmesg, lwp->lwp_thread->td_wmesg, WMESGLEN); 212 kl->kl_wmesg[WMESGLEN] = 0; 213 } 214 } 215 216 /* 217 * Fill in a struct kinfo_proc for kernel threads (i.e. those without proc). 218 */ 219 void 220 fill_kinfo_proc_kthread(struct thread *td, struct kinfo_proc *kp) 221 { 222 bzero(kp, sizeof(*kp)); 223 224 /* 225 * Fill in fake proc information and semi-fake lwp info. 226 */ 227 kp->kp_pid = -1; 228 kp->kp_tdev = NOUDEV; 229 strncpy(kp->kp_comm, td->td_comm, sizeof(kp->kp_comm) - 1); 230 kp->kp_comm[sizeof(kp->kp_comm) - 1] = 0; 231 kp->kp_flags = P_SYSTEM; 232 kp->kp_stat = SACTIVE; 233 234 kp->kp_lwp.kl_pid = -1; 235 kp->kp_lwp.kl_tid = -1; 236 kp->kp_lwp.kl_tdflags = td->td_flags; 237 #ifdef SMP 238 kp->kp_lwp.kl_mpcount = td->td_mpcount; 239 #else /* !SMP */ 240 kp->kp_lwp.kl_mpcount = 0; 241 #endif /* SMP */ 242 243 kp->kp_lwp.kl_tdprio = td->td_pri; 244 kp->kp_lwp.kl_rtprio.type = RTP_PRIO_THREAD; 245 kp->kp_lwp.kl_rtprio.prio = td->td_pri & TDPRI_MASK; 246 247 kp->kp_lwp.kl_uticks = td->td_uticks; 248 kp->kp_lwp.kl_sticks = td->td_sticks; 249 kp->kp_lwp.kl_iticks = td->td_iticks; 250 kp->kp_lwp.kl_cpuid = td->td_gd->gd_cpuid; 251 252 kp->kp_lwp.kl_wchan = (uintptr_t)td->td_wchan; 253 if (td->td_flags & TDF_RUNQ) 254 kp->kp_lwp.kl_stat = LSRUN; 255 else 256 kp->kp_lwp.kl_stat = LSSLEEP; 257 if (td->td_wmesg) { 258 strncpy(kp->kp_lwp.kl_wmesg, td->td_wmesg, WMESGLEN); 259 kp->kp_lwp.kl_wmesg[WMESGLEN] = 0; 260 } 261 } 262