Date: Mon, 7 Apr 2025 01:29:12 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 6c0c6ad350c9 - stable/14 - libprocstat: add knowledge about NT_PROCSTAT_KQUEUES core file section Message-ID: <202504070129.5371TCNb063295@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=6c0c6ad350c9e35291d0fb1eda8f889eef655f83 commit 6c0c6ad350c9e35291d0fb1eda8f889eef655f83 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2025-03-13 23:06:05 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2025-04-07 01:28:22 +0000 libprocstat: add knowledge about NT_PROCSTAT_KQUEUES core file section (cherry picked from commit 1c3d6532ca29c7aa7d26edd4074bc91671ac1bc2) --- lib/libprocstat/core.c | 4 ++++ lib/libprocstat/core.h | 1 + lib/libprocstat/libprocstat.c | 33 +++++++++++++++++++++++++++++++-- 3 files changed, 36 insertions(+), 2 deletions(-) diff --git a/lib/libprocstat/core.c b/lib/libprocstat/core.c index a3e500367920..f74303cdb876 100644 --- a/lib/libprocstat/core.c +++ b/lib/libprocstat/core.c @@ -110,6 +110,10 @@ static const struct psc_type_info { .n_type = NT_PTLWPINFO, .structsize = sizeof(struct ptrace_lwpinfo) }, + [PSC_TYPE_KQUEUES] = { + .n_type = NT_PROCSTAT_KQUEUES, + .structsize = sizeof(struct kinfo_knote) + }, }; static bool core_offset(struct procstat_core *core, off_t offset); diff --git a/lib/libprocstat/core.h b/lib/libprocstat/core.h index 8f6aa40192da..f4276fbdf09e 100644 --- a/lib/libprocstat/core.h +++ b/lib/libprocstat/core.h @@ -43,6 +43,7 @@ enum psc_type { PSC_TYPE_ENVV, PSC_TYPE_AUXV, PSC_TYPE_PTLWPINFO, + PSC_TYPE_KQUEUES, PSC_TYPE_MAX }; diff --git a/lib/libprocstat/libprocstat.c b/lib/libprocstat/libprocstat.c index a59dff84f242..bd314f481e32 100644 --- a/lib/libprocstat/libprocstat.c +++ b/lib/libprocstat/libprocstat.c @@ -2883,6 +2883,9 @@ struct kinfo_knote * procstat_get_kqueue_info(struct procstat *procstat, struct kinfo_proc *kp, int kqfd, unsigned int *count, char *errbuf) { + struct kinfo_knote *kn, *k, *res, *rn; + size_t len, kqn; + switch (procstat->type) { case PROCSTAT_KVM: warnx("kvm method is not supported"); @@ -2891,8 +2894,34 @@ procstat_get_kqueue_info(struct procstat *procstat, return (procstat_get_kqueue_info_sysctl(kp->ki_pid, kqfd, count, errbuf)); case PROCSTAT_CORE: - warnx("core method is not supported"); - return (NULL); + k = procstat_core_get(procstat->core, PSC_TYPE_KQUEUES, + NULL, &len); + if (k == NULL) { + snprintf(errbuf, _POSIX2_LINE_MAX, + "getting NT_PROCSTAT_KQUEUES note failed"); + *count = 0; + return (NULL); + } + for (kqn = 0, kn = k; kn < k + len / sizeof(*kn); kn++) { + if (kn->knt_kq_fd == kqfd) + kqn++; + } + res = calloc(kqn, sizeof(*res)); + if (res == NULL) { + free(k); + snprintf(errbuf, _POSIX2_LINE_MAX, + "no memory"); + return (NULL); + } + for (kn = k, rn = res; kn < k + len / sizeof(*kn); kn++) { + if (kn->knt_kq_fd != kqfd) + continue; + *rn = *kn; + rn++; + } + *count = kqn; + free(k); + return (res); default: warnx("unknown access method: %d", procstat->type); return (NULL);
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