From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Wang Nan <wangnan0@huawei.com>
Subject: [PATCH 02/14] tools: Set the maximum optimization level according to the compiler being used
Date: Wed, 15 Feb 2017 16:04:12 -0300 [thread overview]
Message-ID: <20170215190424.18687-3-acme@kernel.org> (raw)
In-Reply-To: <20170215190424.18687-1-acme@kernel.org>
From: Arnaldo Carvalho de Melo <acme@redhat.com>
To avoid this when using clang:
warning: optimization level '-O6' is not supported; using '-O3' instead
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kaghp8ddvzdsg03putemcq96@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/lib/api/Makefile | 8 +++++++-
tools/lib/subcmd/Makefile | 8 +++++++-
tools/perf/Makefile.config | 4 ++++
3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index adba83b325d5..eb6e0b36bfc1 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -17,7 +17,13 @@ MAKEFLAGS += --no-print-directory
LIBFILE = $(OUTPUT)libapi.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+
+ifeq ($(CC), clang)
+ CFLAGS += -O3
+else
+ CFLAGS += -O6
+endif
# Treat warnings as errors unless directed not to
ifneq ($(WERROR),0)
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 3f8cc44a0dbd..3d1c3b5b5150 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -19,7 +19,13 @@ MAKEFLAGS += --no-print-directory
LIBFILE = $(OUTPUT)libsubcmd.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+
+ifeq ($(CC), clang)
+ CFLAGS += -O3
+else
+ CFLAGS += -O6
+endif
# Treat warnings as errors unless directed not to
ifneq ($(WERROR),0)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 03cf947755b9..2b941efadb04 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -144,8 +144,12 @@ ifndef DEBUG
endif
ifeq ($(DEBUG),0)
+ifeq ($(CC), clang)
+ CFLAGS += -O3
+else
CFLAGS += -O6
endif
+endif
ifdef PARSER_DEBUG
PARSER_DEBUG_BISON := -t
--
2.9.3
next prev parent reply other threads:[~2017-02-15 19:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-15 19:04 [GIT PULL 00/14] perf/core clang fixes Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 01/14] tools: Suppress request for warning options not existent in clang Arnaldo Carvalho de Melo
2017-02-15 19:04 ` Arnaldo Carvalho de Melo [this message]
2017-02-15 19:04 ` [PATCH 03/14] tools lib subcmd: Make it an error to pass a signed value to OPTION_UINTEGER Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 04/14] Revert "perf bench futex: Sanitize numeric parameters" Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 05/14] perf bench numa: Make sure dprintf() is not defined Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 06/14] perf tests: Synthesize struct instead of using field after variable sized type Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 07/14] perf record: Do not put a variable sized type not at the end of a struct Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 08/14] perf tools: " Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 09/14] perf probe: Avoid accessing uninitialized 'map' variable Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 10/14] perf evsel: Do not put a variable sized type not at the end of a struct Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 11/14] perf intel pt decoder: clang has no -Wno-override-init Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 12/14] perf tools: Be consistent on the type of map->symbols[] interator Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 13/14] perf pmu: Fix check for unset alias->unit array Arnaldo Carvalho de Melo
2017-02-15 19:04 ` [PATCH 14/14] perf tools: Add missing parse_events_error() prototype Arnaldo Carvalho de Melo
2017-02-16 19:54 ` [GIT PULL 00/14] perf/core clang fixes Ingo Molnar
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