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perf probe: Cleanup debuginfo related code

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Cleanup debuginfo related code to eliminate fragile code which
pointed by Ingo (Thanks!).
1) Invert logic of NO_DWARF_SUPPORT to DWARF_SUPPORT.
2) For removing assymetric/local variable ifdefs, introduce
  more helper functions.
3) Change options order to reduce the number of ifdefs.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1269274229-20442-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Masami Hiramatsu
2010-03-22 13:10:26 -03:00
committed by Ingo Molnar
parent f3a1f0ea94
commit 4b4da7f766
4 changed files with 200 additions and 178 deletions
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4
tools/perf/util/probe-finder.h
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@@ -15,7 +15,7 @@ static inline int is_c_varname(const char *name)
return isalpha(name[0]) || name[0] == '_';
}
#ifndef NO_DWARF_SUPPORT
#ifdef DWARF_SUPPORT
/* Find kprobe_trace_events specified by perf_probe_event from debuginfo */
extern int find_kprobe_trace_events(int fd, struct perf_probe_event *pev,
struct kprobe_trace_event **tevs);
@@ -57,6 +57,6 @@ struct line_finder {
int found;
};
#endif /* NO_DWARF_SUPPORT */
#endif /* DWARF_SUPPORT */
#endif /*_PROBE_FINDER_H */