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From: Arnd Bergmann <arnd@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>, Kees Cook <keescook@chromium.org>,
	Brendan Higgins <brendanhiggins@google.com>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Alan Maguire <alan.maguire@oracle.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	Vitor Massaru Iha <vitor@massaru.org>,
	linux-hardening@vger.kernel.org, linux-kselftest@vger.kernel.org,
	kunit-dev@googlegroups.com
Subject: [RFC 1/3] bitfield: build kunit tests without structleak plugin
Date: Mon, 25 Jan 2021 13:45:26 +0100	[thread overview]
Message-ID: <20210125124533.101339-2-arnd@kernel.org> (raw)
In-Reply-To: <20210125124533.101339-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

The structleak plugin causes the stack frame size to grow immensely:

lib/bitfield_kunit.c: In function 'test_bitfields_constants':
lib/bitfield_kunit.c:93:1: error: the frame size of 7440 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]

Turn it off in this file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 lib/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Makefile b/lib/Makefile
index b5307d3eec1a..6a7300f0f02f 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -348,6 +348,7 @@ obj-$(CONFIG_PLDMFW) += pldmfw/
 
 # KUnit tests
 obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
+CFLAGS_REMOVE_bitfield_kunit.o += -fplugin-arg-structleak_plugin-byref -fplugin-arg-structleak_plugin-byref-all
 obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
 obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
 obj-$(CONFIG_BITS_TEST) += test_bits.o
-- 
2.29.2


  reply	other threads:[~2021-01-26  5:51 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-25 12:45 [RFC 0/3] kunit vs structleak Arnd Bergmann
2021-01-25 12:45 ` Arnd Bergmann [this message]
2021-01-25 12:45 ` [RFC 2/3] drivers/base: build kunit tests without structleak plugin Arnd Bergmann
2021-01-25 12:45 ` [RFC 3/3] thunderbolt: " Arnd Bergmann
2021-01-27 12:53   ` Mika Westerberg
2021-01-27 20:15 ` [RFC 0/3] kunit vs structleak Kees Cook
2021-01-29 21:29   ` Brendan Higgins

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