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authorPeter Zijlstra2009-08-05 14:05:16 +0200
committerIngo Molnar2009-08-05 14:12:08 +0200
commit2cdbc46d7b2cb0acb68c3ecad93b000552121fa6 (patch)
treef56deaa9e5c3c030d1a0c53a158a43a3212759d8 /tools/perf/util
parent114cfab222233f50f46d7162cf7d99fdc6c271e5 (diff)
perf: Auto-detect libbfd
Since the C++ demangling isn't needed for everybody and bfd/iberty aren't widely/easily available on all machines, make it optional. It also allows you to forcefully disable demangling by using NO_DEMANGLE=1 and otherwise tries to detect libbfd/libiberty combinations that result in a compiling demangler. Reported-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> LKML-Reference: <20090801082048.GX12579@kernel.dk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/symbol.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b4fe0579bd6b..0580b94785e7 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -6,7 +6,16 @@
#include <libelf.h>
#include <gelf.h>
#include <elf.h>
+
+#ifndef NO_DEMANGLE
#include <bfd.h>
+#else
+static inline
+char *bfd_demangle(void __used *v, const char __used *c, int __used i)
+{
+ return NULL;
+}
+#endif
const char *sym_hist_filter;