linux-kernel - [PATCH] Perf: bfd.h/libbfd detection fails with recent binutils

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Date:	Wed, 19 Sep 2012 09:29:02 +0200
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	linux-kernel@...r.kernel.org
Cc:	Mike Frysinger <vapier@...too.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Paul Mackerras <paulus@...ba.org>
Subject: [PATCH] Perf: bfd.h/libbfd detection fails with recent binutils

With recent binutils I get:

 perf % make
Makefile:668: No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demanglin

That happens because bfd.h now contains:

#if !defined PACKAGE && !defined PACKAGE_VERSION
#error config.h must be included before this header
#endif

I've reopened a bug in the hope that this check will be deleted:
http://sourceware.org/bugzilla/show_bug.cgi?id=14243

But in the meantime, the following patch fixes the problem

Signed-off-by: Markus Trippelsdorf <markus@...ppelsdorf.de>

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 35655c3..5604664 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -644,7 +644,7 @@ else
 		EXTLIBS += -liberty
 		BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
         else
-		FLAGS_BFD=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd
+		FLAGS_BFD=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
 		has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD))
 		ifeq ($(has_bfd),y)
 			EXTLIBS += -lbfd
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 1fe733a..50a0912 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -26,6 +26,7 @@ static inline char *bfd_demangle(void __used *v, const char __used *c,
 	return NULL;
 }
 #else
+#define PACKAGE 'perf'
 #include <bfd.h>
 #endif
 #endif

-- 
Markus
--
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