linux-kernel - [PATCH v3 3/3] perf tools: Hook up MIPS unwind and dwarf-regs in the Makefile

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Message-Id: <a3a7e99203ceaf662dc61895418c76e837eaf6ab.1459501014.git.ralf@linux-mips.org>
Date:	Fri, 1 Apr 2016 10:56:57 +0200
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	David Daney <david.daney@...ium.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Paul Burton <paul.burton@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	Matt Redfearn <matt.redfearn@...tec.com>,
	Qais Yousef <qais.yousef@...tec.com>,
	Ben Hutchings <ben@...adent.org.uk>,
	Jiri Olsa <jolsa@...hat.com>, Wang Nan <wangnan0@...wei.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/3] perf tools: Hook up MIPS unwind and dwarf-regs in the
 Makefile

From: David Daney <david.daney@...ium.com>

Define a new symbol (ARCH_SUPPORTS_LIBUNWIND) in config/Makefile.
Use this from x86 and MIPS to gate testing of libunwind.

Signed-off-by: David Daney <david.daney@...ium.com>
Cc: linux-mips@...ux-mips.org
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: linux-kernel@...r.kernel.org
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
---
 tools/perf/config/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index f7d7f5a..713c69c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -51,6 +51,11 @@ ifeq ($(NO_PERF_REGS),0)
   $(call detected,CONFIG_PERF_REGS)
 endif
 
+ifeq ($(ARCH),mips)
+  NO_PERF_REGS := 0
+  LIBUNWIND_LIBS = -lunwind -lunwind-mips
+endif
+
 # So far there's only x86 and arm libdw unwind support merged in perf.
 # Disable it on all other architectures in case libdw unwind
 # support is detected in system. Add supported architectures
-- 
2.5.5