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95485b1cda
For building perf without libunwind, we can set NO_LIBUNWIND=1 as a argument of make. It then defines NO_LIBUNWIND_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Also change NO_PERF_REGS macro to HAVE_PERF_REGS for the same reason. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1348824728-14025-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
15 lines
258 B
C
15 lines
258 B
C
#ifndef __PERF_REGS_H
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#define __PERF_REGS_H
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#ifdef HAVE_PERF_REGS
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#include <perf_regs.h>
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#else
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#define PERF_REGS_MASK 0
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static inline const char *perf_reg_name(int id __maybe_unused)
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{
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return NULL;
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}
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#endif /* HAVE_PERF_REGS */
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#endif /* __PERF_REGS_H */
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