From 3d32d4a7c97401beb9eb1aaafbcb0389e50d9109 Mon Sep 17 00:00:00 2001 From: Eric van Gyzen Date: Wed, 7 Dec 2016 15:04:22 +0000 Subject: [PATCH] Export the whole thread name in kinfo_proc kinfo_proc::ki_tdname is three characters shorter than thread::td_name. Add a ki_moretdname field for these three extra characters. Add the new field to kinfo_proc32, as well. Update all in-tree consumers to read the new field and assemble the full name, except for lldb's HostThreadFreeBSD.cpp, which I will handle separately. Bump __FreeBSD_version. Reviewed by: kib MFC after: 1 week Relnotes: yes Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D8722 --- bin/ps/print.c | 16 ++++++++++------ lib/libkvm/kvm_proc.c | 2 -- sys/compat/freebsd32/freebsd32.h | 3 ++- sys/kern/kern_proc.c | 10 +++++++++- sys/sys/param.h | 2 +- sys/sys/user.h | 3 ++- usr.bin/procstat/procstat.c | 16 ++++++++++++++++ usr.bin/procstat/procstat.h | 1 + usr.bin/procstat/procstat_cs.c | 9 ++++----- usr.bin/procstat/procstat_kstack.c | 9 ++++----- usr.bin/procstat/procstat_threads.c | 9 ++++----- usr.bin/top/machine.c | 15 +++++++++------ 12 files changed, 62 insertions(+), 33 deletions(-) diff --git a/bin/ps/print.c b/bin/ps/print.c index 1cbcf628d382..d8823ed35720 100644 --- a/bin/ps/print.c +++ b/bin/ps/print.c @@ -120,11 +120,12 @@ command(KINFO *k, VARENT *ve) if (cflag) { /* If it is the last field, then don't pad */ if (STAILQ_NEXT(ve, next_ve) == NULL) { - asprintf(&str, "%s%s%s%s", + asprintf(&str, "%s%s%s%s%s", k->ki_d.prefix ? k->ki_d.prefix : "", k->ki_p->ki_comm, (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "", - (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : ""); + (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "", + (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : ""); } else str = strdup(k->ki_p->ki_comm); @@ -172,14 +173,16 @@ ucomm(KINFO *k, VARENT *ve) char *str; if (STAILQ_NEXT(ve, next_ve) == NULL) { /* last field, don't pad */ - asprintf(&str, "%s%s%s%s", + asprintf(&str, "%s%s%s%s%s", k->ki_d.prefix ? k->ki_d.prefix : "", k->ki_p->ki_comm, (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "", - (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : ""); + (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "", + (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : ""); } else { if (showthreads && k->ki_p->ki_numthreads > 1) - asprintf(&str, "%s/%s", k->ki_p->ki_comm, k->ki_p->ki_tdname); + asprintf(&str, "%s/%s%s", k->ki_p->ki_comm, + k->ki_p->ki_tdname, k->ki_p->ki_moretdname); else str = strdup(k->ki_p->ki_comm); } @@ -192,7 +195,8 @@ tdnam(KINFO *k, VARENT *ve __unused) char *str; if (showthreads && k->ki_p->ki_numthreads > 1) - str = strdup(k->ki_p->ki_tdname); + asprintf(&str, "%s%s", k->ki_p->ki_tdname, + k->ki_p->ki_moretdname); else str = strdup(" "); diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c index 5cd0493cf3d4..0885732ea7d3 100644 --- a/lib/libkvm/kvm_proc.c +++ b/lib/libkvm/kvm_proc.c @@ -426,8 +426,6 @@ kvm_proclist(kvm_t *kd, int what, int arg, struct proc *p, kp->ki_pri.pri_native = mtd.td_base_pri; kp->ki_lastcpu = mtd.td_lastcpu; kp->ki_wchan = mtd.td_wchan; - if (mtd.td_name[0] != 0) - strlcpy(kp->ki_tdname, mtd.td_name, MAXCOMLEN); kp->ki_oncpu = mtd.td_oncpu; if (mtd.td_name[0] != '\0') strlcpy(kp->ki_tdname, mtd.td_name, sizeof(kp->ki_tdname)); diff --git a/sys/compat/freebsd32/freebsd32.h b/sys/compat/freebsd32/freebsd32.h index 982b44e0a1ad..39213aec94d3 100644 --- a/sys/compat/freebsd32/freebsd32.h +++ b/sys/compat/freebsd32/freebsd32.h @@ -315,7 +315,8 @@ struct kinfo_proc32 { char ki_comm[COMMLEN+1]; char ki_emul[KI_EMULNAMELEN+1]; char ki_loginclass[LOGINCLASSLEN+1]; - char ki_sparestrings[50]; + char ki_moretdname[MAXCOMLEN-TDNAMLEN+1]; + char ki_sparestrings[46]; int ki_spareints[KI_NSPARE_INT]; int ki_oncpu; int ki_lastcpu; diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c index 450dc623d894..f39326f696f2 100644 --- a/sys/kern/kern_proc.c +++ b/sys/kern/kern_proc.c @@ -1020,7 +1020,14 @@ fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread) strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg)); else bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg)); - strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname)); + if (strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname)) >= + sizeof(kp->ki_tdname)) { + strlcpy(kp->ki_moretdname, + td->td_name + sizeof(kp->ki_tdname) - 1, + sizeof(kp->ki_moretdname)); + } else { + bzero(kp->ki_moretdname, sizeof(kp->ki_moretdname)); + } if (TD_ON_LOCK(td)) { kp->ki_kiflag |= KI_LOCKBLOCK; strlcpy(kp->ki_lockname, td->td_lockname, @@ -1265,6 +1272,7 @@ freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32) bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1); bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1); bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1); + bcopy(ki->ki_moretdname, ki32->ki_moretdname, MAXCOMLEN - TDNAMLEN + 1); CP(*ki, *ki32, ki_tracer); CP(*ki, *ki32, ki_flag2); CP(*ki, *ki32, ki_fibnum); diff --git a/sys/sys/param.h b/sys/sys/param.h index cf38985573f0..7bdc85f314b1 100644 --- a/sys/sys/param.h +++ b/sys/sys/param.h @@ -58,7 +58,7 @@ * in the range 5 to 9. */ #undef __FreeBSD_version -#define __FreeBSD_version 1200017 /* Master, propagated to newvers */ +#define __FreeBSD_version 1200018 /* Master, propagated to newvers */ /* * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD, diff --git a/sys/sys/user.h b/sys/sys/user.h index 6049e80cf3ae..5115b79880b6 100644 --- a/sys/sys/user.h +++ b/sys/sys/user.h @@ -180,12 +180,13 @@ struct kinfo_proc { char ki_comm[COMMLEN+1]; /* command name */ char ki_emul[KI_EMULNAMELEN+1]; /* emulation name */ char ki_loginclass[LOGINCLASSLEN+1]; /* login class */ + char ki_moretdname[MAXCOMLEN-TDNAMLEN+1]; /* more thread name */ /* * When adding new variables, take space for char-strings from the * front of ki_sparestrings, and ints from the end of ki_spareints. * That way the spare room from both arrays will remain contiguous. */ - char ki_sparestrings[50]; /* spare string space */ + char ki_sparestrings[46]; /* spare string space */ int ki_spareints[KI_NSPARE_INT]; /* spare room for growth */ int ki_oncpu; /* Which cpu we are on */ int ki_lastcpu; /* Last cpu we were on */ diff --git a/usr.bin/procstat/procstat.c b/usr.bin/procstat/procstat.c index cafb33525b27..0388ba01e6af 100644 --- a/usr.bin/procstat/procstat.c +++ b/usr.bin/procstat/procstat.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include @@ -126,6 +127,21 @@ kinfo_proc_sort(struct kinfo_proc *kipp, int count) qsort(kipp, count, sizeof(*kipp), kinfo_proc_compare); } +const char * +kinfo_proc_thread_name(const struct kinfo_proc *kipp) +{ + static char name[MAXCOMLEN+1]; + + strlcpy(name, kipp->ki_tdname, sizeof(name)); + strlcat(name, kipp->ki_moretdname, sizeof(name)); + if (name[0] == '\0' || strcmp(kipp->ki_comm, name) == 0) { + name[0] = '-'; + name[1] = '\0'; + } + + return (name); +} + int main(int argc, char *argv[]) { diff --git a/usr.bin/procstat/procstat.h b/usr.bin/procstat/procstat.h index dfdf3285ebb7..43bd8416d96f 100644 --- a/usr.bin/procstat/procstat.h +++ b/usr.bin/procstat/procstat.h @@ -38,6 +38,7 @@ extern int hflag, nflag, Cflag, Hflag; struct kinfo_proc; void kinfo_proc_sort(struct kinfo_proc *kipp, int count); +const char * kinfo_proc_thread_name(const struct kinfo_proc *kipp); void procstat_args(struct procstat *prstat, struct kinfo_proc *kipp); void procstat_auxv(struct procstat *prstat, struct kinfo_proc *kipp); diff --git a/usr.bin/procstat/procstat_cs.c b/usr.bin/procstat/procstat_cs.c index bbf9d05eec4e..8af912edb749 100644 --- a/usr.bin/procstat/procstat_cs.c +++ b/usr.bin/procstat/procstat_cs.c @@ -53,7 +53,7 @@ procstat_cs(struct procstat *procstat, struct kinfo_proc *kipp) int once, twice, lastcpu, cpu; if (!hflag) - xo_emit("{T:/%5s %6s %-16s %-16s %2s %4s %-7s}\n", "PID", + xo_emit("{T:/%5s %6s %-19s %-19s %2s %4s %-7s}\n", "PID", "TID", "COMM", "TDNAME", "CPU", "CSID", "CPU MASK"); kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, @@ -65,11 +65,10 @@ procstat_cs(struct procstat *procstat, struct kinfo_proc *kipp) kipp = &kip[i]; xo_emit("{k:process_id/%5d/%d} ", kipp->ki_pid); xo_emit("{:thread_id/%6d/%d} ", kipp->ki_tid); - xo_emit("{:command/%-16s/%s} ", strlen(kipp->ki_comm) ? + xo_emit("{:command/%-19s/%s} ", strlen(kipp->ki_comm) ? kipp->ki_comm : "-"); - xo_emit("{:thread_name/%-16s/%s} ", (strlen(kipp->ki_tdname) && - (strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ? - kipp->ki_tdname : "-"); + xo_emit("{:thread_name/%-19s/%s} ", + kinfo_proc_thread_name(kipp)); if (kipp->ki_oncpu != 255) xo_emit("{:cpu/%3d/%d} ", kipp->ki_oncpu); else if (kipp->ki_lastcpu != 255) diff --git a/usr.bin/procstat/procstat_kstack.c b/usr.bin/procstat/procstat_kstack.c index a413926736b3..374f9d085692 100644 --- a/usr.bin/procstat/procstat_kstack.c +++ b/usr.bin/procstat/procstat_kstack.c @@ -171,7 +171,7 @@ procstat_kstack(struct procstat *procstat, struct kinfo_proc *kipp, int kflag) unsigned int kip_count, kstk_count; if (!hflag) - xo_emit("{T:/%5s %6s %-16s %-16s %-29s}\n", "PID", "TID", "COMM", + xo_emit("{T:/%5s %6s %-19s %-19s %-29s}\n", "PID", "TID", "COMM", "TDNAME", "KSTACK"); kkstp = kkstp_free = procstat_getkstack(procstat, kipp, &kstk_count); @@ -208,10 +208,9 @@ procstat_kstack(struct procstat *procstat, struct kinfo_proc *kipp, int kflag) xo_emit("{k:process_id/%5d/%d} ", kipp->ki_pid); xo_emit("{:thread_id/%6d/%d} ", kkstp->kkst_tid); - xo_emit("{:command/%-16s/%s} ", kipp->ki_comm); - xo_emit("{:thread_name/%-16s/%s} ", (strlen(kipp->ki_tdname) && - (strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ? - kipp->ki_tdname : "-"); + xo_emit("{:command/%-19s/%s} ", kipp->ki_comm); + xo_emit("{:thread_name/%-19s/%s} ", + kinfo_proc_thread_name(kipp)); switch (kkstp->kkst_state) { case KKST_STATE_RUNNING: diff --git a/usr.bin/procstat/procstat_threads.c b/usr.bin/procstat/procstat_threads.c index aa9f9b5c0015..40e1b4b15bae 100644 --- a/usr.bin/procstat/procstat_threads.c +++ b/usr.bin/procstat/procstat_threads.c @@ -49,7 +49,7 @@ procstat_threads(struct procstat *procstat, struct kinfo_proc *kipp) char *threadid; if (!hflag) - xo_emit("{T:/%5s %6s %-16s %-16s %2s %4s %-7s %-9s}\n", "PID", + xo_emit("{T:/%5s %6s %-19s %-19s %2s %4s %-7s %-9s}\n", "PID", "TID", "COMM", "TDNAME", "CPU", "PRI", "STATE", "WCHAN"); xo_emit("{ek:process_id/%d}", kipp->ki_pid); @@ -71,11 +71,10 @@ procstat_threads(struct procstat *procstat, struct kinfo_proc *kipp) xo_open_container(threadid); xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); xo_emit("{:thread_id/%6d/%d} ", kipp->ki_tid); - xo_emit("{d:command/%-16s/%s} ", strlen(kipp->ki_comm) ? + xo_emit("{d:command/%-19s/%s} ", strlen(kipp->ki_comm) ? kipp->ki_comm : "-"); - xo_emit("{:thread_name/%-16s/%s} ", (strlen(kipp->ki_tdname) && - (strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ? - kipp->ki_tdname : "-"); + xo_emit("{:thread_name/%-19s/%s} ", + kinfo_proc_thread_name(kipp)); if (kipp->ki_oncpu != 255) xo_emit("{:cpu/%3d/%d} ", kipp->ki_oncpu); else if (kipp->ki_lastcpu != 255) diff --git a/usr.bin/top/machine.c b/usr.bin/top/machine.c index 885639462c95..32738869b854 100644 --- a/usr.bin/top/machine.c +++ b/usr.bin/top/machine.c @@ -991,8 +991,8 @@ format_next_process(caddr_t handle, char *(*get_userid)(int), int flags) if (!(flags & FMT_SHOWARGS)) { if (ps.thread && pp->ki_flag & P_HADTHREADS && pp->ki_tdname[0]) { - snprintf(cmdbuf, cmdlen, "%s{%s}", pp->ki_comm, - pp->ki_tdname); + snprintf(cmdbuf, cmdlen, "%s{%s%s}", pp->ki_comm, + pp->ki_tdname, pp->ki_moretdname); } else { snprintf(cmdbuf, cmdlen, "%s", pp->ki_comm); } @@ -1004,7 +1004,8 @@ format_next_process(caddr_t handle, char *(*get_userid)(int), int flags) if (ps.thread && pp->ki_flag & P_HADTHREADS && pp->ki_tdname[0]) { snprintf(cmdbuf, cmdlen, - "[%s{%s}]", pp->ki_comm, pp->ki_tdname); + "[%s{%s%s}]", pp->ki_comm, pp->ki_tdname, + pp->ki_moretdname); } else { snprintf(cmdbuf, cmdlen, "[%s]", pp->ki_comm); @@ -1052,8 +1053,9 @@ format_next_process(caddr_t handle, char *(*get_userid)(int), int flags) if (ps.thread && pp->ki_flag & P_HADTHREADS && pp->ki_tdname[0]) snprintf(cmdbuf, cmdlen, - "%s (%s){%s}", argbuf, pp->ki_comm, - pp->ki_tdname); + "%s (%s){%s%s}", argbuf, + pp->ki_comm, pp->ki_tdname, + pp->ki_moretdname); else snprintf(cmdbuf, cmdlen, "%s (%s)", argbuf, pp->ki_comm); @@ -1061,7 +1063,8 @@ format_next_process(caddr_t handle, char *(*get_userid)(int), int flags) if (ps.thread && pp->ki_flag & P_HADTHREADS && pp->ki_tdname[0]) snprintf(cmdbuf, cmdlen, - "%s{%s}", argbuf, pp->ki_tdname); + "%s{%s%s}", argbuf, pp->ki_tdname, + pp->ki_moretdname); else strlcpy(cmdbuf, argbuf, cmdlen); }