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MFC 198343:

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Handle the case where there is only one PMC in the system.
This commit is contained in:
Fabien Thomas 2009-12-01 22:59:37 +00:00
parent fa860bed4e
commit 7619fb0cbd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/stable/8/; revision=200007
1 changed files with 4 additions and 4 deletions
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8
sys/dev/hwpmc/hwpmc_mod.c
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@ -790,7 +790,7 @@ pmc_link_target_process(struct pmc *pm, struct pmc_process *pp)
KASSERT(PMC_IS_VIRTUAL_MODE(PMC_TO_MODE(pm)), KASSERT(PMC_IS_VIRTUAL_MODE(PMC_TO_MODE(pm)),
("[pmc,%d] Attaching a non-process-virtual pmc=%p to pid=%d", ("[pmc,%d] Attaching a non-process-virtual pmc=%p to pid=%d",
__LINE__, pm, pp->pp_proc->p_pid)); __LINE__, pm, pp->pp_proc->p_pid));
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < ((int) md->pmd_npmc - 1), KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= ((int) md->pmd_npmc - 1),
("[pmc,%d] Illegal reference count %d for process record %p", ("[pmc,%d] Illegal reference count %d for process record %p",
__LINE__, pp->pp_refcnt, (void *) pp)); __LINE__, pp->pp_refcnt, (void *) pp));
@ -843,7 +843,7 @@ pmc_unlink_target_process(struct pmc *pm, struct pmc_process *pp)
KASSERT(pm != NULL && pp != NULL, KASSERT(pm != NULL && pp != NULL,
("[pmc,%d] Null pm %p or pp %p", __LINE__, pm, pp)); ("[pmc,%d] Null pm %p or pp %p", __LINE__, pm, pp));
KASSERT(pp->pp_refcnt >= 1 && pp->pp_refcnt < (int) md->pmd_npmc, KASSERT(pp->pp_refcnt >= 1 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal ref count %d on process record %p", ("[pmc,%d] Illegal ref count %d on process record %p",
__LINE__, pp->pp_refcnt, (void *) pp)); __LINE__, pp->pp_refcnt, (void *) pp));
@ -1110,7 +1110,7 @@ pmc_detach_one_process(struct proc *p, struct pmc *pm, int flags)
* descriptor from the target hash table and unset the P_HWPMC * descriptor from the target hash table and unset the P_HWPMC
* flag in the struct proc. * flag in the struct proc.
*/ */
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < (int) md->pmd_npmc, KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal refcnt %d for process struct %p", ("[pmc,%d] Illegal refcnt %d for process struct %p",
__LINE__, pp->pp_refcnt, pp)); __LINE__, pp->pp_refcnt, pp));
@ -1785,7 +1785,7 @@ pmc_hook_handler(struct thread *td, int function, void *arg)
pmc_detach_one_process(td->td_proc, pmc_detach_one_process(td->td_proc,
pm, PMC_FLAG_NONE); pm, PMC_FLAG_NONE);
KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt < (int) md->pmd_npmc, KASSERT(pp->pp_refcnt >= 0 && pp->pp_refcnt <= (int) md->pmd_npmc,
("[pmc,%d] Illegal ref count %d on pp %p", __LINE__, ("[pmc,%d] Illegal ref count %d on pp %p", __LINE__,
pp->pp_refcnt, pp)); pp->pp_refcnt, pp));