diff options
Diffstat (limited to 'kern/pc_sample.c')
| -rw-r--r-- | kern/pc_sample.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/kern/pc_sample.c b/kern/pc_sample.c index 57002581..fcb9d71b 100644 --- a/kern/pc_sample.c +++ b/kern/pc_sample.c @@ -43,12 +43,9 @@ typedef sampled_pc_t sampled_pcs[MAX_PC_SAMPLES]; -int pc_sampling_enabled = 0; -decl_simple_lock_data(, pc_sampling_lock) /* lock for enabling */ - void take_pc_sample( - register thread_t t, - register sample_control_t *cp, + const thread_t t, + sample_control_t *cp, sampled_pc_flavor_t flavor) { vm_offset_t pc; @@ -192,6 +189,9 @@ get_sampled_pcs( (sampled_pc_array_t)cp->buffer, (seqidx2 + 1) * sizeof(sampled_pc_t)); } + } else if (nsamples < 0) { + /* Bogus SEQNO supplied. */ + nsamples = 0; } else { /* could either be zero because of overflow, or because * we are being lied to. In either case, return nothing. @@ -244,8 +244,8 @@ task_get_sampled_pcs( kern_return_t thread_enable_pc_sampling( - thread_t thread, - int *tickp, + const thread_t thread, + const int *tickp, sampled_pc_flavor_t flavors) { return KERN_FAILURE; /* not implemented */ @@ -253,8 +253,8 @@ thread_enable_pc_sampling( kern_return_t task_enable_pc_sampling( - task_t task, - int *tickp, + const task_t task, + const int *tickp, sampled_pc_flavor_t flavors) { return KERN_FAILURE; /* not implemented */ @@ -262,36 +262,36 @@ task_enable_pc_sampling( kern_return_t thread_disable_pc_sampling( - thread_t thread, - int *samplecntp) + const thread_t thread, + const int *samplecntp) { return KERN_FAILURE; /* not implemented */ } kern_return_t task_disable_pc_sampling( - task_t task, - int *samplecntp) + const task_t task, + const int *samplecntp) { return KERN_FAILURE; /* not implemented */ } kern_return_t thread_get_sampled_pcs( - thread_t thread, - sampled_pc_seqno_t *seqnop, - sampled_pc_array_t sampled_pcs_out, - int *sampled_pcs_cntp) + const thread_t thread, + const sampled_pc_seqno_t *seqnop, + const sampled_pc_array_t sampled_pcs_out, + const int *sampled_pcs_cntp) { return KERN_FAILURE; /* not implemented */ } kern_return_t task_get_sampled_pcs( - task_t task, - sampled_pc_seqno_t *seqnop, - sampled_pc_array_t sampled_pcs_out, - int *sampled_pcs_cntp) + const task_t task, + const sampled_pc_seqno_t *seqnop, + const sampled_pc_array_t sampled_pcs_out, + const int *sampled_pcs_cntp) { return KERN_FAILURE; /* not implemented */ } |