8a398897ff
This patch fixes a problem with the handling of the newly introduced optional event unit. The following cmdline caused a segfault: $ perf stat -e cpu/event-0x3c/ ls This patch fixes the problem with the default setting for alias->unit which was eventually causing the segfault. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1389972846-6566-2-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#ifndef __PMU_H
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#define __PMU_H
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#include <linux/bitops.h>
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#include <linux/perf_event.h>
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#include <stdbool.h>
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enum {
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PERF_PMU_FORMAT_VALUE_CONFIG,
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PERF_PMU_FORMAT_VALUE_CONFIG1,
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PERF_PMU_FORMAT_VALUE_CONFIG2,
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};
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#define PERF_PMU_FORMAT_BITS 64
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struct perf_pmu {
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char *name;
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__u32 type;
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struct cpu_map *cpus;
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struct list_head format;
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struct list_head aliases;
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struct list_head list;
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};
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struct perf_pmu *perf_pmu__find(const char *name);
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int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
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struct list_head *head_terms);
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int perf_pmu__config_terms(struct list_head *formats,
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struct perf_event_attr *attr,
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struct list_head *head_terms);
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int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
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const char **unit, double *scale);
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struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
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struct list_head *head_terms);
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int perf_pmu_wrap(void);
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void perf_pmu_error(struct list_head *list, char *name, char const *msg);
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int perf_pmu__new_format(struct list_head *list, char *name,
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int config, unsigned long *bits);
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void perf_pmu__set_format(unsigned long *bits, long from, long to);
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int perf_pmu__format_parse(char *dir, struct list_head *head);
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struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
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void print_pmu_events(const char *event_glob, bool name_only);
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bool pmu_have_event(const char *pname, const char *name);
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int perf_pmu__test(void);
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#endif /* __PMU_H */
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