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hwppmc: set threadid in callchain records - second part of r334108

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This commit is contained in:
Matt Macy 2018-05-23 17:44:29 +00:00
parent 7e1a13f4b4
commit a85289cf9b
2 changed files with 16 additions and 9 deletions
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12
sys/dev/hwpmc/hwpmc_logging.c
View File

@ -181,7 +181,7 @@ static struct mtx pmc_kthread_mtx; /* sleep lock */
* Assertions about the log file format.
*/
CTASSERT(sizeof(struct pmclog_callchain) == 6*4 +
CTASSERT(sizeof(struct pmclog_callchain) == 8*4 +
PMC_CALLCHAIN_DEPTH_MAX*sizeof(uintfptr_t));
CTASSERT(sizeof(struct pmclog_closelog) == 3*4);
CTASSERT(sizeof(struct pmclog_dropnotify) == 3*4);
@ -190,12 +190,12 @@ CTASSERT(sizeof(struct pmclog_map_in) == PATH_MAX +
CTASSERT(offsetof(struct pmclog_map_in,pl_pathname) ==
4*4 + sizeof(uintfptr_t));
CTASSERT(sizeof(struct pmclog_map_out) == 4*4 + 2*sizeof(uintfptr_t));
CTASSERT(sizeof(struct pmclog_pcsample) == 6*4 + sizeof(uintfptr_t));
CTASSERT(sizeof(struct pmclog_pcsample) == 8*4 + sizeof(uintfptr_t));
CTASSERT(sizeof(struct pmclog_pmcallocate) == 6*4);
CTASSERT(sizeof(struct pmclog_pmcattach) == 5*4 + PATH_MAX);
CTASSERT(offsetof(struct pmclog_pmcattach,pl_pathname) == 5*4);
CTASSERT(sizeof(struct pmclog_pmcdetach) == 5*4);
CTASSERT(sizeof(struct pmclog_proccsw) == 5*4 + 8);
CTASSERT(sizeof(struct pmclog_proccsw) == 6*4 + 8);
CTASSERT(sizeof(struct pmclog_procexec) == 5*4 + PATH_MAX +
sizeof(uintfptr_t));
CTASSERT(offsetof(struct pmclog_procexec,pl_pathname) == 5*4 +
@ -907,8 +907,11 @@ pmclog_process_callchain(struct pmc *pm, struct pmc_sample *ps)
flags = PMC_CALLCHAIN_TO_CPUFLAGS(ps->ps_cpu,ps->ps_flags);
PMCLOG_RESERVE_SAFE(po, CALLCHAIN, recordlen);
PMCLOG_EMIT32(ps->ps_pid);
PMCLOG_EMIT32(ps->ps_tid);
PMCLOG_EMIT32(pm->pm_id);
PMCLOG_EMIT32(flags);
/* unused for now */
PMCLOG_EMIT32(0);
for (n = 0; n < ps->ps_nsamples; n++)
PMCLOG_EMITADDR(ps->ps_pc[n]);
PMCLOG_DESPATCH_SAFE(po);
@ -1033,7 +1036,7 @@ pmclog_process_pmcdetach(struct pmc *pm, pid_t pid)
*/
void
pmclog_process_proccsw(struct pmc *pm, struct pmc_process *pp, pmc_value_t v)
pmclog_process_proccsw(struct pmc *pm, struct pmc_process *pp, pmc_value_t v, struct thread *td)
{
struct pmc_owner *po;
@ -1049,6 +1052,7 @@ pmclog_process_proccsw(struct pmc *pm, struct pmc_process *pp, pmc_value_t v)
PMCLOG_EMIT32(pm->pm_id);
PMCLOG_EMIT64(v);
PMCLOG_EMIT32(pp->pp_proc->p_pid);
PMCLOG_EMIT32(td->td_tid);
PMCLOG_DESPATCH(po);
}

13
sys/dev/hwpmc/hwpmc_mod.c
View File

@ -1657,7 +1657,7 @@ pmc_process_csw_out(struct thread *td)
mtx_pool_unlock_spin(pmc_mtxpool, pm);
if (pm->pm_flags & PMC_F_LOG_PROCCSW)
pmclog_process_proccsw(pm, pp, tmp);
pmclog_process_proccsw(pm, pp, tmp, td);
}
}
@ -4576,10 +4576,13 @@ pmc_process_interrupt(int cpu, int ring, struct pmc *pm, struct trapframe *tf,
counter_u64_add(pm->pm_runcount, 1); /* hold onto PMC */
ps->ps_pmc = pm;
if ((td = curthread) && td->td_proc)
ps->ps_pid = td->td_proc->p_pid;
else
ps->ps_pid = -1;
ps->ps_pid = -1;
ps->ps_tid = -1;
if ((td = curthread) != NULL) {
ps->ps_tid = td->td_tid;
if (td->td_proc)
ps->ps_pid = td->td_proc->p_pid;
}
ps->ps_cpu = cpu;
ps->ps_td = td;
ps->ps_flags = inuserspace ? PMC_CC_F_USERSPACE : 0;