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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Clark Williams <williams@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Ian Rogers <irogers@google.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Stephane Eranian <eranian@google.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 01/24] libsubcmd: Make _FORTIFY_SOURCE defines dependent on the feature
Date: Tue,  1 Oct 2019 08:11:53 -0300	[thread overview]
Message-ID: <20191001111216.7208-2-acme@kernel.org> (raw)
In-Reply-To: <20191001111216.7208-1-acme@kernel.org>

From: Ian Rogers <irogers@google.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@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20190925195924.152834-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.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


  reply	other threads:[~2019-10-01 11:12 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-01 11:11 [GIT PULL] perf/urgent improvements and fixes Arnaldo Carvalho de Melo
2019-10-01 11:11 ` Arnaldo Carvalho de Melo [this message]
2019-10-01 11:11 ` [PATCH 02/24] perf tests: Avoid raising SEGV using an obvious NULL dereference Arnaldo Carvalho de Melo
2019-10-01 11:11 ` [PATCH 03/24] perf docs: Allow man page date to be specified Arnaldo Carvalho de Melo
2019-10-01 11:11 ` [PATCH 04/24] tools headers uapi: Sync drm/i915_drm.h with the kernel sources Arnaldo Carvalho de Melo
2019-10-01 11:11 ` [PATCH 05/24] tools headers uapi: Sync asm-generic/mman-common.h with the kernel Arnaldo Carvalho de Melo
2019-10-01 11:11 ` [PATCH 06/24] tools headers uapi: Sync linux/usbdevice_fs.h with the kernel sources Arnaldo Carvalho de Melo
2019-10-01 13:59   ` Alan Stern
2019-10-01 19:23     ` Arnaldo Carvalho de Melo
2019-10-01 11:11 ` [PATCH 07/24] tools headers uapi: Sync linux/fs.h " Arnaldo Carvalho de Melo
2019-10-01 18:45   ` Eric Biggers
2019-10-01 18:57     ` Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 08/24] tools headers kvm: Sync kvm headers " Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 09/24] perf llvm: Don't access out-of-scope array Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 10/24] perf vendor events s390: Add JSON transaction for machine type 8561 Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 11/24] perf vendor events s390: Use s390 machine name instead of " Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 12/24] perf map: Fix overlapped map handling Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 13/24] perf inject jit: Fix JIT_CODE_MOVE filename Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 14/24] perf docs: Correct and clarify jitdump spec Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 15/24] perf script brstackinsn: Fix recovery from LBR/binary mismatch Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 16/24] perf jevents: Fix period for Intel fixed counters Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 17/24] perf tools: Propagate get_cpuid() error Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 18/24] perf evsel: Fall back to global 'perf_env' in perf_evsel__env() Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 19/24] perf annotate: Propagate perf_env__arch() error Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 20/24] perf annotate: Fix the signedness of failure returns Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 21/24] perf annotate: Propagate the symbol__annotate() error return Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 22/24] perf annotate: Fix arch specific ->init() failure errors Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 23/24] perf annotate: Return appropriate error code for allocation failures Arnaldo Carvalho de Melo
2019-10-01 11:12 ` [PATCH 24/24] perf annotate: Don't return -1 for error when doing BPF disassembly Arnaldo Carvalho de Melo
2019-10-07 13:16 ` [GIT PULL] perf/urgent improvements and fixes Ingo Molnar

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