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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - tools/perf/arch/x86/util/auxtrace.c
1 // SPDX-License-Identifier: GPL-2.0-only
3 * auxtrace.c: AUX area tracing support
4 * Copyright (c) 2013-2014, Intel Corporation.
10 #include "../../util/header.h"
11 #include "../../util/debug.h"
12 #include "../../util/pmu.h"
13 #include "../../util/auxtrace.h"
14 #include "../../util/intel-pt.h"
15 #include "../../util/intel-bts.h"
16 #include "../../util/evlist.h"
19 struct auxtrace_record
*auxtrace_record__init_intel(struct perf_evlist
*evlist
,
22 struct perf_pmu
*intel_pt_pmu
;
23 struct perf_pmu
*intel_bts_pmu
;
24 struct perf_evsel
*evsel
;
25 bool found_pt
= false;
26 bool found_bts
= false;
28 intel_pt_pmu
= perf_pmu__find(INTEL_PT_PMU_NAME
);
29 intel_bts_pmu
= perf_pmu__find(INTEL_BTS_PMU_NAME
);
31 evlist__for_each_entry(evlist
, evsel
) {
32 if (intel_pt_pmu
&& evsel
->attr
.type
== intel_pt_pmu
->type
)
34 if (intel_bts_pmu
&& evsel
->attr
.type
== intel_bts_pmu
->type
)
38 if (found_pt
&& found_bts
) {
39 pr_err("intel_pt and intel_bts may not be used together\n");
45 return intel_pt_recording_init(err
);
48 return intel_bts_recording_init(err
);
53 struct auxtrace_record
*auxtrace_record__init(struct perf_evlist
*evlist
,
61 ret
= get_cpuid(buffer
, sizeof(buffer
));
67 if (!strncmp(buffer
, "GenuineIntel,", 13))
68 return auxtrace_record__init_intel(evlist
, err
);