linux/tools/perf/util/debug.h
Arnaldo Carvalho de Melo c286c419c7 perf tools: Fixup exit path when not able to open events
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>
2011-03-29 13:40:27 -03:00

41 lines
1 KiB
C

/* For debugging general purposes */
#ifndef __PERF_DEBUG_H
#define __PERF_DEBUG_H
#include <stdbool.h>
#include "event.h"
extern int verbose;
extern bool quiet, dump_trace;
int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void trace_event(union perf_event *event);
struct ui_progress;
#ifdef NO_NEWT_SUPPORT
static inline int ui_helpline__show_help(const char *format __used, va_list ap __used)
{
return 0;
}
static inline struct ui_progress *ui_progress__new(const char *title __used,
u64 total __used)
{
return (struct ui_progress *)1;
}
static inline void ui_progress__update(struct ui_progress *self __used,
u64 curr __used) {}
static inline void ui_progress__delete(struct ui_progress *self __used) {}
#else
extern char ui_helpline__last_msg[];
int ui_helpline__show_help(const char *format, va_list ap);
#include "ui/progress.h"
#endif
void ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
void ui__warning_paranoid(void);
#endif /* __PERF_DEBUG_H */