752914208a
It is used everywhere so always build it regardless of ui engine. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1352911664-24620-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
#include "util.h"
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#include "../debug.h"
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/*
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* Default error logging functions
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*/
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static int perf_stdio__error(const char *format, va_list args)
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{
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fprintf(stderr, "Error:\n");
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vfprintf(stderr, format, args);
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return 0;
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}
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static int perf_stdio__warning(const char *format, va_list args)
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{
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fprintf(stderr, "Warning:\n");
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vfprintf(stderr, format, args);
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return 0;
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}
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static struct perf_error_ops default_eops =
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{
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.error = perf_stdio__error,
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.warning = perf_stdio__warning,
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};
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static struct perf_error_ops *perf_eops = &default_eops;
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int ui__error(const char *format, ...)
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{
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int ret;
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va_list args;
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va_start(args, format);
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ret = perf_eops->error(format, args);
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va_end(args);
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return ret;
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}
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int ui__warning(const char *format, ...)
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{
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int ret;
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va_list args;
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va_start(args, format);
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ret = perf_eops->warning(format, args);
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va_end(args);
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return ret;
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}
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int ui__error_paranoid(void)
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{
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return ui__error("Permission error - are you root?\n"
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"Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
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" -1 - Not paranoid at all\n"
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" 0 - Disallow raw tracepoint access for unpriv\n"
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" 1 - Disallow cpu events for unpriv\n"
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" 2 - Disallow kernel profiling for unpriv\n");
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}
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/**
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* perf_error__register - Register error logging functions
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* @eops: The pointer to error logging function struct
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*
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* Register UI-specific error logging functions. Before calling this,
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* other logging functions should be unregistered, if any.
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*/
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int perf_error__register(struct perf_error_ops *eops)
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{
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if (perf_eops != &default_eops)
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return -1;
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perf_eops = eops;
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return 0;
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}
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/**
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* perf_error__unregister - Unregister error logging functions
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* @eops: The pointer to error logging function struct
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*
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* Unregister already registered error logging functions.
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*/
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int perf_error__unregister(struct perf_error_ops *eops)
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{
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if (perf_eops != eops)
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return -1;
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perf_eops = &default_eops;
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return 0;
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}
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