hwpmc: log name->pid, name->tid mappings

By logging all threads and processes 'pmc filter'
can now filter on process or thread name, relieving
the user of the burden of determining which tid or
pid was which when the sample was taken.

% pmc filter -T if_io_tqg -P nginx pmc.log pmc-iflib.log

% pmc filter -x -T idle pmc.log pmc-noidle.log

1 files changed, 30 insertions, 2 deletions

diff --git a/sys/sys/pmclog.h b/sys/sys/pmclog.h
index 8d170cd3ded3..9e37985d93b4 100644
--- a/sys/sys/pmclog.h
+++ b/sys/sys/pmclog.h
@@ -67,7 +67,13 @@ enum pmclog_type {
 	 *
 	 * New variant of PMCLOG_TYPE_PMCALLOCATE for dynamic event.
 	 */
-	PMCLOG_TYPE_PMCALLOCATEDYN = 17
+	PMCLOG_TYPE_PMCALLOCATEDYN = 17,
+	/*
+	 * V6 ABI
+	 */
+	PMCLOG_TYPE_THR_CREATE = 18,
+	PMCLOG_TYPE_THR_EXIT = 19,
+	PMCLOG_TYPE_PROC_CREATE = 20
 };
 
 /*
@@ -181,6 +187,12 @@ struct pmclog_proccsw {
 	uint32_t		pl_tid;
 } __packed;
 
+struct pmclog_proccreate {
+	PMCLOG_ENTRY_HEADER
+	uint32_t		pl_pid;
+	uint64_t		pl_pcomm[MAXCOMLEN+1];	/* keep 8 byte aligned */
+} __packed;
+
 struct pmclog_procexec {
 	PMCLOG_ENTRY_HEADER
 	uint32_t		pl_pid;
@@ -210,6 +222,19 @@ struct pmclog_sysexit {
 	uint32_t		pl_pid;
 } __packed;
 
+struct pmclog_threadcreate {
+	PMCLOG_ENTRY_HEADER
+	uint32_t		pl_tid;
+	uint32_t		pl_pid;
+	uint32_t		pl_pad;
+	uint64_t		pl_tdname[MAXCOMLEN+1];	/* keep 8 byte aligned */
+} __packed;
+
+struct pmclog_threadexit {
+	PMCLOG_ENTRY_HEADER
+	uint32_t		pl_tid;
+} __packed;
+
 struct pmclog_userdata {
 	PMCLOG_ENTRY_HEADER
 	uint32_t		pl_userdata;
@@ -261,7 +286,7 @@ union pmclog_entry {		/* only used to size scratch areas */
 int	pmclog_configure_log(struct pmc_mdep *_md, struct pmc_owner *_po,
     int _logfd);
 int	pmclog_deconfigure_log(struct pmc_owner *_po);
-int	pmclog_flush(struct pmc_owner *_po);
+int	pmclog_flush(struct pmc_owner *_po, int force);
 int	pmclog_close(struct pmc_owner *_po);
 void	pmclog_initialize(void);
 int	pmclog_proc_create(struct thread *td, void **handlep);
@@ -283,6 +308,9 @@ void	pmclog_process_procexec(struct pmc_owner *_po, pmc_id_t _pmid, pid_t _pid,
 void	pmclog_process_procexit(struct pmc *_pm, struct pmc_process *_pp);
 void	pmclog_process_procfork(struct pmc_owner *_po, pid_t _oldpid, pid_t _newpid);
 void	pmclog_process_sysexit(struct pmc_owner *_po, pid_t _pid);
+void	pmclog_process_threadcreate(struct pmc_owner *_po, struct thread *td, int sync);
+void	pmclog_process_threadexit(struct pmc_owner *_po, struct thread *td);
+void	pmclog_process_proccreate(struct pmc_owner *_po, struct proc *p, int sync);
 int	pmclog_process_userlog(struct pmc_owner *_po,
     struct pmc_op_writelog *_wl);
 void	pmclog_shutdown(void);