forked from luck/tmp_suning_uos_patched
1d037ca164
perf defines both __used and __unused variables to use for marking
unused variables. The variable __used is defined to
__attribute__((__unused__)), which contradicts the kernel definition to
__attribute__((__used__)) for new gcc versions. On Android, __used is
also defined in system headers and this leads to warnings like: warning:
'__used__' attribute ignored
__unused is not defined in the kernel and is not a standard definition.
If __unused is included everywhere instead of __used, this leads to
conflicts with glibc headers, since glibc has a variables with this name
in its headers.
The best approach is to use __maybe_unused, the definition used in the
kernel for __attribute__((unused)). In this way there is only one
definition in perf sources (instead of 2 definitions that point to the
same thing: __used and __unused) and it works on both Linux and Android.
This patch simply replaces all instances of __used and __unused with
__maybe_unused.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com
[ committer note: fixed up conflict with a116e05 in builtin-sched.c ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
49 lines
1.2 KiB
C
49 lines
1.2 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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#include "../ui/helpline.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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struct perf_error_ops;
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#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
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static inline void ui_progress__update(u64 curr __maybe_unused,
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u64 total __maybe_unused,
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const char *title __maybe_unused) {}
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#define ui__error(format, arg...) ui__warning(format, ##arg)
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static inline int
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perf_error__register(struct perf_error_ops *eops __maybe_unused)
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{
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return 0;
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}
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static inline int
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perf_error__unregister(struct perf_error_ops *eops __maybe_unused)
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{
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return 0;
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}
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#else /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
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#include "../ui/progress.h"
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int ui__error(const char *format, ...) __attribute__((format(printf, 1, 2)));
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#include "../ui/util.h"
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#endif /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
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int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
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int ui__error_paranoid(void);
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#endif /* __PERF_DEBUG_H */
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