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From: Anders Roxell <anders.roxell@linaro.org>
To: elver@google.com
Cc: kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, keescook@chromium.org,
davidgow@google.com, Jason@zx2c4.com,
Anders Roxell <anders.roxell@linaro.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 1/2] kernel: kcsan: kcsan_test: build without structleak
plugin
Date: Mon, 28 Nov 2022 11:43:58 +0100
Message-Id: <20221128104358.2660634-1-anders.roxell@linaro.org>
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[1/2] kernel: kcsan: kcsan_test: build without structleak plugin
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Commit Message
Anders Roxell
Nov. 28, 2022, 10:43 a.m. UTC
Building kcsan_test with strucleak plugin enabled makes the stack frame
size to grow.
kernel/kcsan/kcsan_test.c:704:1: error: the frame size of 3296 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
Turn off the structleak plugin checks for kcsan_test.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
kernel/kcsan/Makefile | 1 +
1 file changed, 1 insertion(+)
Comments
On Mon, 28 Nov 2022 at 11:44, Anders Roxell <anders.roxell@linaro.org> wrote: > > Building kcsan_test with strucleak plugin enabled makes the stack frame > size to grow. > > kernel/kcsan/kcsan_test.c:704:1: error: the frame size of 3296 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] > > Turn off the structleak plugin checks for kcsan_test. > > Suggested-by: Arnd Bergmann <arnd@arndb.de> > Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Acked-by: Marco Elver <elver@google.com> > --- > kernel/kcsan/Makefile | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile > index 4f35d1bced6a..8cf70f068d92 100644 > --- a/kernel/kcsan/Makefile > +++ b/kernel/kcsan/Makefile > @@ -17,4 +17,5 @@ KCSAN_INSTRUMENT_BARRIERS_selftest.o := y > obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o > > CFLAGS_kcsan_test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer > +CFLAGS_kcsan_test.o += $(DISABLE_STRUCTLEAK_PLUGIN) > obj-$(CONFIG_KCSAN_KUNIT_TEST) += kcsan_test.o > -- > 2.35.1 >
diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile index 4f35d1bced6a..8cf70f068d92 100644 --- a/kernel/kcsan/Makefile +++ b/kernel/kcsan/Makefile @@ -17,4 +17,5 @@ KCSAN_INSTRUMENT_BARRIERS_selftest.o := y obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o CFLAGS_kcsan_test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer +CFLAGS_kcsan_test.o += $(DISABLE_STRUCTLEAK_PLUGIN) obj-$(CONFIG_KCSAN_KUNIT_TEST) += kcsan_test.o