linux-kernel - [PATCH 2/2] perf tools: Make NO_AUXTRACE default for non-x86 architectures

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Date:	Tue, 25 Aug 2015 13:42:28 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Subject: [PATCH 2/2] perf tools: Make NO_AUXTRACE default for non-x86 architectures

Currently the AUXTRACE infrastructure is only used by Intel PT
and Intel BTS but is compiled into all architectures to support
the ability to process a perf.data file (including one containing
Intel PT or Intel BTS data) from any architecture on any other
architecture.

Generally people don't want that ability with respect to AUXTRACE
by default.

Make the build option NO_AUXTRACE the default for non-x86
architectures.  To build with AUXTRACE on those architectures
use NO_AUXTRACE=0.

The build-test is updated accordingly.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/config/Makefile | 8 ++++++++
 tools/perf/tests/make      | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 827557fc7511..ddc3b64fdad2 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -621,6 +621,14 @@ ifdef LIBBABELTRACE
 endif
 
 ifndef NO_AUXTRACE
+  ifneq ($(ARCH),x86)
+    NO_AUXTRACE := 1
+  else
+    NO_AUXTRACE := 0
+  endif
+endif
+
+ifeq ($(NO_AUXTRACE), 0)
   $(call detected,CONFIG_AUXTRACE)
   CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 endif
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index ba31c4bd441d..977ded210de2 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -44,6 +44,7 @@ make_no_libnuma     := NO_LIBNUMA=1
 make_no_libaudit    := NO_LIBAUDIT=1
 make_no_libbionic   := NO_LIBBIONIC=1
 make_no_auxtrace    := NO_AUXTRACE=1
+make_auxtrace       := NO_AUXTRACE=0
 make_tags           := tags
 make_cscope         := cscope
 make_help           := help
@@ -94,6 +95,7 @@ run += make_no_libnuma
 run += make_no_libaudit
 run += make_no_libbionic
 run += make_no_auxtrace
+run += make_auxtrace
 run += make_help
 run += make_doc
 run += make_perf_o
-- 
1.9.1

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