Lines Matching defs:trace

228 			      struct perf_callchain_entry *trace, u64 flags)
238 	if (trace->nr <= skip)
239 		/* skipping more than usable stack trace */
242 	trace_nr = trace->nr - skip;
244 	ips = trace->ip + skip;
306 	struct perf_callchain_entry *trace;
317 	trace = get_perf_callchain(regs, kernel, user, max_depth,
320 	if (unlikely(!trace))
321 		/* couldn't fetch the stack trace */
324 	return __bpf_get_stackid(map, trace, flags);
336 static __u64 count_kernel_ip(struct perf_callchain_entry *trace)
340 	while (nr_kernel < trace->nr) {
341 		if (trace->ip[nr_kernel] == PERF_CONTEXT_USER)
352 	struct perf_callchain_entry *trace;
369 	trace = ctx->data->callchain;
370 	if (unlikely(!trace))
373 	nr_kernel = count_kernel_ip(trace);
376 		__u64 nr = trace->nr;
378 		trace->nr = nr_kernel;
379 		ret = __bpf_get_stackid(map, trace, flags);
382 		trace->nr = nr;
391 		ret = __bpf_get_stackid(map, trace, flags);
414 	struct perf_callchain_entry *trace;
450 		trace = trace_in;
452 		trace = get_callchain_entry_for_task(task, max_depth);
454 		trace = get_perf_callchain(regs, kernel, user, max_depth,
457 	if (unlikely(!trace) || trace->nr < skip) {
463 	trace_nr = trace->nr - skip;
467 	ips = trace->ip + skip;
478 	/* trace/ips should not be dereferenced after this point */
584 	struct perf_callchain_entry *trace;
600 	trace = ctx->data->callchain;
601 	if (unlikely(!trace))
604 	nr_kernel = count_kernel_ip(trace);
607 		__u64 nr = trace->nr;
609 		trace->nr = nr_kernel;
610 		err = __bpf_get_stack(regs, NULL, trace, buf, size, flags, false /* !may_fault */);
613 		trace->nr = nr;
622 		err = __bpf_get_stack(regs, NULL, trace, buf, size, flags, false /* !may_fault */);