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-rw-r--r--sys/ddb/db_ps.c374
1 files changed, 319 insertions, 55 deletions
diff --git a/sys/ddb/db_ps.c b/sys/ddb/db_ps.c
index b5175b7..f12ccf4 100644
--- a/sys/ddb/db_ps.c
+++ b/sys/ddb/db_ps.c
@@ -32,9 +32,13 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
+#include <sys/jail.h>
+#include <sys/kdb.h>
+#include <sys/linker_set.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
+#include <sys/sysent.h>
#include <sys/cons.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
@@ -42,19 +46,47 @@ __FBSDID("$FreeBSD$");
#include <ddb/ddb.h>
-static void dumpthread(volatile struct proc *p, volatile struct thread *td);
+/* XXX I'd prefer a better way. */
+#if defined(__alpha__) || defined(__amd64__) || defined(__ia64__) || defined(__sparc64__)
+#define PTR64
+#endif
+
+#ifdef PTR64
+CTASSERT(sizeof(uintptr_t) == sizeof(uint64_t));
+#else
+CTASSERT(sizeof(uintptr_t) == sizeof(uint32_t));
+#endif
+
+static void dumpthread(volatile struct proc *p, volatile struct thread *td,
+ int all);
+/*
+ * Layout:
+ * - column counts
+ * - header
+ * - single-threaded process
+ * - multi-threaded process
+ * - thread in a MT process
+ *
+ * 1 2 3 4 5 6 7
+ * 1234567890123456789012345678901234567890123456789012345678901234567890
+ * pid uid ppid pgrp state wmesg wchan cmd
+ * <pid> <ui> <ppi> <pgi> <stat> < wmesg > < wchan > <name>
+ * <pid> <ui> <ppi> <pgi> <stat> (threaded) <command>
+ * <tid > <stat> < wmesg > < wchan > <name>
+ *
+ * For machines with 64-bit pointers, we expand the wchan field 8 more
+ * characters.
+ */
void
-db_ps(dummy1, dummy2, dummy3, dummy4)
- db_expr_t dummy1;
- boolean_t dummy2;
- db_expr_t dummy3;
- char * dummy4;
+db_ps(db_expr_t addr, boolean_t hasaddr, db_expr_t count, char *modif)
{
volatile struct proc *p, *pp;
volatile struct thread *td;
- char *state;
- int np, quit;
+ struct ucred *cred;
+ struct pgrp *pgrp;
+ char state[9];
+ int np, quit, rflag, sflag, dflag, lflag, wflag;
np = nprocs;
quit = 0;
@@ -66,10 +98,14 @@ db_ps(dummy1, dummy2, dummy3, dummy4)
p = &proc0;
db_setup_paging(db_simple_pager, &quit, db_lines_per_page);
- db_printf(" pid proc uid ppid pgrp flag stat wmesg wchan cmd\n");
+#ifdef PTR64
+ db_printf(" pid uid ppid pgrp state wmesg wchan cmd\n");
+#else
+ db_printf(" pid uid ppid pgrp state wmesg wchan cmd\n");
+#endif
while (--np >= 0 && !quit) {
if (p == NULL) {
- printf("oops, ran out of processes early!\n");
+ db_printf("oops, ran out of processes early!\n");
break;
}
/* PROC_LOCK(p); */
@@ -77,33 +113,99 @@ db_ps(dummy1, dummy2, dummy3, dummy4)
if (pp == NULL)
pp = p;
+ cred = p->p_ucred;
+ pgrp = p->p_pgrp;
+ db_printf("%5d %4d %5d %5d ", p->p_pid,
+ cred != NULL ? cred->cr_ruid : 0, pp->p_pid,
+ pgrp != NULL ? pgrp->pg_id : 0);
+ /* Determine our primary process state. */
switch(p->p_state) {
case PRS_NORMAL:
if (P_SHOULDSTOP(p))
- state = "stop";
- else
- state = "";
+ state[0] = 'T';
+ else {
+ /*
+ * One of D, L, R, S, W. For a
+ * multithreaded process we will use
+ * the state of the thread with the
+ * highest precedence. The
+ * precendence order from high to low
+ * is R, L, D, S, W. If no thread is
+ * in a sane state we use '?' for our
+ * primary state.
+ */
+ rflag = sflag = dflag = lflag = wflag = 0;
+ FOREACH_THREAD_IN_PROC(p, td) {
+ if (td->td_state == TDS_RUNNING ||
+ td->td_state == TDS_RUNQ ||
+ td->td_state == TDS_CAN_RUN)
+ rflag++;
+ if (TD_ON_LOCK(td))
+ lflag++;
+ if (TD_IS_SLEEPING(td)) {
+ if (!td->td_flags & TDF_SINTR)
+ dflag++;
+ else
+ sflag++;
+ }
+ if (TD_AWAITING_INTR(td))
+ wflag++;
+ }
+ if (rflag)
+ state[0] = 'R';
+ else if (lflag)
+ state[0] = 'L';
+ else if (dflag)
+ state[0] = 'D';
+ else if (sflag)
+ state[0] = 'S';
+ else if (wflag)
+ state[0] = 'W';
+ else
+ state[0] = '?';
+ }
break;
case PRS_NEW:
- state = "new ";
+ state[0] = 'N';
break;
case PRS_ZOMBIE:
- state = "zomb";
+ state[0] = 'Z';
break;
default:
- state = "Unkn";
+ state[0] = 'U';
break;
}
- db_printf("%5d %8p %4d %5d %5d %07x %s",
- p->p_pid, (volatile void *)p,
- p->p_ucred != NULL ? p->p_ucred->cr_ruid : 0, pp->p_pid,
- p->p_pgrp != NULL ? p->p_pgrp->pg_id : 0, p->p_flag,
- state);
+ state[1] = '\0';
+
+ /* Additional process state flags. */
+ if (!p->p_sflag & PS_INMEM)
+ strlcat(state, "W", sizeof(state));
+ if (p->p_flag & P_TRACED)
+ strlcat(state, "X", sizeof(state));
+ if (p->p_flag & P_WEXIT && p->p_state != PRS_ZOMBIE)
+ strlcat(state, "E", sizeof(state));
+ if (p->p_flag & P_PPWAIT)
+ strlcat(state, "V", sizeof(state));
+ if (p->p_flag & P_SYSTEM || p->p_lock > 0)
+ strlcat(state, "L", sizeof(state));
+ if (p->p_session != NULL && SESS_LEADER(p))
+ strlcat(state, "s", sizeof(state));
+ /* Cheated here and didn't compare pgid's. */
+ if (p->p_flag & P_CONTROLT)
+ strlcat(state, "+", sizeof(state));
+ if (cred != NULL && jailed(cred))
+ strlcat(state, "J", sizeof(state));
+ db_printf(" %-6.6s ", state);
if (p->p_flag & P_HADTHREADS)
- db_printf("(threaded) %s\n", p->p_comm);
+#ifdef PTR64
+ db_printf(" (threaded) %s\n",
+ p->p_comm);
+#else
+ db_printf(" (threaded) %s\n", p->p_comm);
+#endif
FOREACH_THREAD_IN_PROC(p, td) {
- dumpthread(p, td);
+ dumpthread(p, td, p->p_flag & P_HADTHREADS);
if (quit)
break;
}
@@ -117,54 +219,216 @@ db_ps(dummy1, dummy2, dummy3, dummy4)
}
static void
-dumpthread(volatile struct proc *p, volatile struct thread *td)
+dumpthread(volatile struct proc *p, volatile struct thread *td, int all)
{
+ char state[9], wprefix;
+ const char *wmesg;
+ void *wchan;
+
+ if (all) {
+ db_printf(" %9d ", td->td_tid);
+ switch (td->td_state) {
+ case TDS_RUNNING:
+ snprintf(state, sizeof(state), "Run");
+ break;
+ case TDS_RUNQ:
+ snprintf(state, sizeof(state), "RunQ");
+ break;
+ case TDS_CAN_RUN:
+ snprintf(state, sizeof(state), "CanRun");
+ break;
+ case TDS_INACTIVE:
+ snprintf(state, sizeof(state), "Inactv");
+ break;
+ case TDS_INHIBITED:
+ state[0] = '\0';
+ if (TD_ON_LOCK(td))
+ strlcat(state, "L", sizeof(state));
+ if (TD_IS_SLEEPING(td)) {
+ if (td->td_flags & TDF_SINTR)
+ strlcat(state, "S", sizeof(state));
+ else
+ strlcat(state, "D", sizeof(state));
+ }
+ if (TD_IS_SWAPPED(td))
+ strlcat(state, "W", sizeof(state));
+ if (TD_AWAITING_INTR(td))
+ strlcat(state, "I", sizeof(state));
+ if (TD_IS_SUSPENDED(td))
+ strlcat(state, "s", sizeof(state));
+ if (state[0] != '\0')
+ break;
+ default:
+ snprintf(state, sizeof(state), "???");
+ }
+ db_printf(" %-6.6s ", state);
+ }
+ wprefix = ' ';
+ if (TD_ON_LOCK(td)) {
+ wprefix = '*';
+ wmesg = td->td_lockname;
+ wchan = td->td_blocked;
+ } else if (TD_ON_SLEEPQ(td)) {
+ wmesg = td->td_wmesg;
+ wchan = td->td_wchan;
+ } else if (TD_IS_RUNNING(td)) {
+ snprintf(state, sizeof(state), "CPU %d", td->td_oncpu);
+ wmesg = state;
+ wchan = NULL;
+ } else {
+ wmesg = "";
+ wchan = NULL;
+ }
+ db_printf("%c%-8.8s ", wprefix, wmesg);
+ if (wchan == NULL)
+#ifdef PTR64
+ db_printf("%18s ", "");
+#else
+ db_printf("%10s ", "");
+#endif
+ else
+ db_printf("%p ", wchan);
+ if (p->p_flag & P_SYSTEM)
+ db_printf("[");
+ if (td->td_name[0] != '\0')
+ db_printf("%s", td->td_name);
+ else
+ db_printf("%s", td->td_proc->p_comm);
+ if (p->p_flag & P_SYSTEM)
+ db_printf("]");
+ db_printf("\n");
+}
- if (p->p_flag & P_HADTHREADS)
- db_printf( " thread %p ksegrp %p ", td, td->td_ksegrp);
- if (TD_ON_SLEEPQ(td))
- db_printf("[SLPQ %s %p]", td->td_wmesg, (void *)td->td_wchan);
+DB_SHOW_COMMAND(thread, db_show_thread)
+{
+ struct thread *td;
+ boolean_t comma;
+
+ /* Determine which thread to examine. */
+ if (have_addr)
+ td = db_lookup_thread(addr, FALSE);
+ else
+ td = kdb_thread;
+
+ db_printf("Thread %d at %p:\n", td->td_tid, td);
+ db_printf(" proc (pid %d): %p ", td->td_proc->p_pid, td->td_proc);
+ db_printf(" ksegrp: %p\n", td->td_ksegrp);
+ if (td->td_name[0] != '\0')
+ db_printf(" name: %s\n", td->td_name);
+ db_printf(" flags: %#x ", td->td_flags);
+ db_printf(" pflags: %#x\n", td->td_pflags);
+ db_printf(" state: ");
switch (td->td_state) {
+ case TDS_INACTIVE:
+ db_printf("INACTIVE\n");
+ break;
+ case TDS_CAN_RUN:
+ db_printf("CAN RUN\n");
+ break;
+ case TDS_RUNQ:
+ db_printf("RUNQ\n");
+ break;
+ case TDS_RUNNING:
+ db_printf("RUNNING (CPU %d)\n", td->td_oncpu);
+ break;
case TDS_INHIBITED:
- if (TD_ON_LOCK(td)) {
- db_printf("[LOCK %6s %8p]",
- td->td_lockname,
- (void *)td->td_blocked);
- }
+ db_printf("INHIBITED: {");
+ comma = FALSE;
if (TD_IS_SLEEPING(td)) {
- db_printf("[SLP]");
- }
- if (TD_IS_SWAPPED(td)) {
- db_printf("[SWAP]");
+ db_printf("SLEEPING");
+ comma = TRUE;
}
if (TD_IS_SUSPENDED(td)) {
- db_printf("[SUSP]");
+ if (comma)
+ db_printf(", ");
+ db_printf("SUSPENDED");
+ comma = TRUE;
+ }
+ if (TD_IS_SWAPPED(td)) {
+ if (comma)
+ db_printf(", ");
+ db_printf("SWAPPED");
+ comma = TRUE;
+ }
+ if (TD_ON_LOCK(td)) {
+ if (comma)
+ db_printf(", ");
+ db_printf("LOCK");
+ comma = TRUE;
}
if (TD_AWAITING_INTR(td)) {
- db_printf("[IWAIT]");
+ if (comma)
+ db_printf(", ");
+ db_printf("IWAIT");
}
+ db_printf("}\n");
break;
- case TDS_CAN_RUN:
- db_printf("[Can run]");
+ default:
+ db_printf("??? (%#x)\n", td->td_state);
break;
- case TDS_RUNQ:
- db_printf("[RUNQ]");
+ }
+ if (TD_ON_LOCK(td))
+ db_printf(" lock: %s turnstile: %p\n", td->td_lockname,
+ td->td_blocked);
+ if (TD_ON_SLEEPQ(td))
+ db_printf(" wmesg: %s wchan: %p\n", td->td_wmesg,
+ td->td_wchan);
+ db_printf(" priority: %d\n", td->td_priority);
+}
+
+DB_SHOW_COMMAND(proc, db_show_proc)
+{
+ struct thread *td;
+ struct proc *p;
+ int i, quit;
+
+ /* Determine which process to examine. */
+ if (have_addr)
+ p = db_lookup_proc(addr);
+ else
+ p = kdb_thread->td_proc;
+
+ quit = 0;
+ db_setup_paging(db_simple_pager, &quit, db_lines_per_page);
+ db_printf("Process %d (%s) at %p:\n", p->p_pid, p->p_comm, p);
+ db_printf(" state: ");
+ switch (p->p_state) {
+ case PRS_NEW:
+ db_printf("NEW\n");
break;
- case TDS_RUNNING:
- db_printf("[CPU %d]", td->td_oncpu);
+ case PRS_NORMAL:
+ db_printf("NORMAL\n");
break;
- case TDS_INACTIVE:
- db_printf("[INACTIVE]");
+ case PRS_ZOMBIE:
+ db_printf("ZOMBIE\n");
break;
default:
- db_printf("[UNK: %#x]", td->td_state);
+ db_printf("??? (%#x)\n", p->p_state);
}
- if (p->p_flag & P_HADTHREADS) {
-#ifdef KEF_DIDRUN
- if (td->td_kse)
- db_printf("[kse %p]", td->td_kse);
-#endif
+ if (p->p_ucred != NULL) {
+ db_printf(" uid: %d gids: ", p->p_ucred->cr_uid);
+ for (i = 0; i < p->p_ucred->cr_ngroups; i++) {
+ db_printf("%d", p->p_ucred->cr_groups[i]);
+ if (i < (p->p_ucred->cr_ngroups - 1))
+ db_printf(", ");
+ }
db_printf("\n");
- } else
- db_printf(" %s\n", p->p_comm);
+ }
+ if (p->p_pptr != NULL)
+ db_printf(" parent: pid %d at %p\n", p->p_pptr->p_pid,
+ p->p_pptr);
+ if (p->p_leader != NULL && p->p_leader != p)
+ db_printf(" leader: pid %d at %p\n", p->p_leader->p_pid,
+ p->p_leader);
+ if (p->p_sysent != NULL)
+ db_printf(" ABI: %s\n", p->p_sysent->sv_name);
+ if (p->p_args != NULL)
+ db_printf(" arguments: %.*s\n", (int)p->p_args->ar_length,
+ p->p_args->ar_args);
+ db_printf(" threads: %d\n", p->p_numthreads);
+ FOREACH_THREAD_IN_PROC(p, td) {
+ dumpthread(p, td, 1);
+ if (quit)
+ break;
+ }
}
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