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Message-Id: <20191001111216.7208-2-acme@kernel.org>
Date: Tue, 1 Oct 2019 08:11:53 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>
Cc: Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Clark Williams <williams@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Ian Rogers <irogers@...gle.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 01/24] libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
From: Ian Rogers <irogers@...gle.com>
Unconditionally defining _FORTIFY_SOURCE can break tools that don't work
with it, such as memory sanitizers:
https://github.com/google/sanitizers/wiki/AddressSanitizer#faq
Fixes: 4b6ab94eabe4 ("perf subcmd: Create subcmd library")
Signed-off-by: Ian Rogers <irogers@...gle.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lore.kernel.org/lkml/20190925195924.152834-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/lib/subcmd/Makefile | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index ed61fb3a46c0..5b2cd5e58df0 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -20,7 +20,13 @@ MAKEFLAGS += --no-print-directory
LIBFILE = $(OUTPUT)libsubcmd.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -fPIC
+
+ifeq ($(DEBUG),0)
+ ifeq ($(feature-fortify-source), 1)
+ CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
+ endif
+endif
ifeq ($(CC_NO_CLANG), 0)
CFLAGS += -O3
--
2.21.0
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