linux/tools/perf/arch/x86/util/auxtrace.c
Arnaldo Carvalho de Melo a43783aeec perf tools: Include errno.h where needed
Removing it from util.h, part of an effort to disentangle the includes
hell, that makes changes to util.h or something included by it to cause
a complete rebuild of the tools.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-ztrjy52q1rqcchuy3rubfgt2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-19 13:01:51 -03:00

85 lines
2.0 KiB
C

/*
* auxtrace.c: AUX area tracing support
* Copyright (c) 2013-2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*/
#include <errno.h>
#include <stdbool.h>
#include "../../util/header.h"
#include "../../util/debug.h"
#include "../../util/pmu.h"
#include "../../util/auxtrace.h"
#include "../../util/intel-pt.h"
#include "../../util/intel-bts.h"
#include "../../util/evlist.h"
static
struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,
int *err)
{
struct perf_pmu *intel_pt_pmu;
struct perf_pmu *intel_bts_pmu;
struct perf_evsel *evsel;
bool found_pt = false;
bool found_bts = false;
intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME);
intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);
if (evlist) {
evlist__for_each_entry(evlist, evsel) {
if (intel_pt_pmu &&
evsel->attr.type == intel_pt_pmu->type)
found_pt = true;
if (intel_bts_pmu &&
evsel->attr.type == intel_bts_pmu->type)
found_bts = true;
}
}
if (found_pt && found_bts) {
pr_err("intel_pt and intel_bts may not be used together\n");
*err = -EINVAL;
return NULL;
}
if (found_pt)
return intel_pt_recording_init(err);
if (found_bts)
return intel_bts_recording_init(err);
return NULL;
}
struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist,
int *err)
{
char buffer[64];
int ret;
*err = 0;
ret = get_cpuid(buffer, sizeof(buffer));
if (ret) {
*err = ret;
return NULL;
}
if (!strncmp(buffer, "GenuineIntel,", 13))
return auxtrace_record__init_intel(evlist, err);
return NULL;
}