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https://github.com/torvalds/linux
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c286c419c7
We have to deal with the TUI mode in perf top, so that we don't end up with a garbled screen when, say, a non root user on a machine with a paranoid setting (the default) tries to use 'perf top'. Introduce a ui__warning_paranoid() routine shared by top and record that tells the user the valid values for /proc/sys/kernel/perf_event_paranoid. Cc: David Ahern <daahern@cisco.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
42 lines
1 KiB
C
42 lines
1 KiB
C
/* For debugging general purposes */
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#ifndef __PERF_DEBUG_H
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#define __PERF_DEBUG_H
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#include <stdbool.h>
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#include "event.h"
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extern int verbose;
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extern bool quiet, dump_trace;
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int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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void trace_event(union perf_event *event);
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struct ui_progress;
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#ifdef NO_NEWT_SUPPORT
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static inline int ui_helpline__show_help(const char *format __used, va_list ap __used)
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{
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return 0;
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}
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static inline struct ui_progress *ui_progress__new(const char *title __used,
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u64 total __used)
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{
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return (struct ui_progress *)1;
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}
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static inline void ui_progress__update(struct ui_progress *self __used,
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u64 curr __used) {}
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static inline void ui_progress__delete(struct ui_progress *self __used) {}
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#else
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extern char ui_helpline__last_msg[];
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int ui_helpline__show_help(const char *format, va_list ap);
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#include "ui/progress.h"
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#endif
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void ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
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void ui__warning_paranoid(void);
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#endif /* __PERF_DEBUG_H */
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