linux-kernel - [PATCH 2/2] perf tools: Hook up MIPS unwind and dwarf-regs in the Makefile

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Message-Id: <f43306ea57733a711b66a92a5e5f17fd1a6f3f8a.1428450297.git.ralf@linux-mips.org>
Date:	Wed, 08 Apr 2015 01:58:47 +0200
From:	David Daney <david.daney@...ium.com>
To:	David Daney <david.daney@...ium.com>, linux-mips@...ux-mips.org,
	Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Subject: [PATCH 2/2] 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>
Patchwork: https://patchwork.linux-mips.org/patch/5250/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
---
 tools/perf/config/Makefile | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index cc22408..0d0595e 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -27,19 +27,29 @@ ifeq ($(ARCH),x86)
   else
     LIBUNWIND_LIBS = -lunwind -lunwind-x86
   endif
+  ARCH_SUPPORTS_LIBUNWIND := 1
   NO_PERF_REGS := 0
 endif
 
 ifeq ($(ARCH),arm)
   NO_PERF_REGS := 0
+  ARCH_SUPPORTS_LIBUNWIND := 1
   LIBUNWIND_LIBS = -lunwind -lunwind-arm
 endif
 
 ifeq ($(ARCH),arm64)
   NO_PERF_REGS := 0
+  ARCH_SUPPORTS_LIBUNWIND := 1
   LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
 endif
 
+# Additional ARCH settings for MIPS
+ifeq ($(ARCH),mips)
+  ARCH_SUPPORTS_LIBUNWIND := 1
+  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
-- 
1.9.3

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