From: Thomas Huth <thuth@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: "Chen Qun" <kuhn.chenqun@huawei.com>,
"Alex Bennée" <alex.bennee@linaro.org>
Subject: [PULL 12/12] configure: Compile with -Wimplicit-fallthrough=2
Date: Wed, 16 Dec 2020 18:29:49 +0100 [thread overview]
Message-ID: <20201216172949.57380-13-thuth@redhat.com> (raw)
In-Reply-To: <20201216172949.57380-1-thuth@redhat.com>
Coverity always complains about switch-case statements that fall through
the next one when there is no comment in between - which could indicate
a forgotten "break" statement. Instead of handling these issues after
they have been committed, it would be better to avoid them in the build
process already. Thus let's enable the -Wimplicit-fallthrough warning now.
The "=2" level seems to be a good compromise between being too strict and
too generic about the possible comments, so we'll start with "=2" for now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20201211152426.350966-13-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
configure | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure b/configure
index c228f7c21e..881af4b6be 100755
--- a/configure
+++ b/configure
@@ -2023,6 +2023,7 @@ add_to warn_flags -Wempty-body
add_to warn_flags -Wnested-externs
add_to warn_flags -Wendif-labels
add_to warn_flags -Wexpansion-to-defined
+add_to warn_flags -Wimplicit-fallthrough=2
nowarn_flags=
add_to nowarn_flags -Wno-initializer-overrides
--
2.27.0
next prev parent reply other threads:[~2020-12-16 17:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 17:29 [PULL 00/12] Compile QEMU with -Wimplicit-fallthrough Thomas Huth
2020-12-16 17:29 ` [PULL 01/12] disas/libvixl: Fix fall-through annotation for GCC >= 7 Thomas Huth
2020-12-16 17:29 ` [PULL 02/12] target/unicore32/translate: Add missing fallthrough annotations Thomas Huth
2020-12-16 17:29 ` [PULL 03/12] hw/rtc/twl92230: Silence warnings about missing fallthrough statements Thomas Huth
2020-12-16 17:29 ` [PULL 04/12] hw/timer/renesas_tmr: silence the compiler warnings Thomas Huth
2020-12-16 17:29 ` [PULL 05/12] target/i386: silence the compiler warnings in gen_shiftd_rm_T1 Thomas Huth
2020-12-16 17:29 ` [PULL 06/12] hw/intc/arm_gicv3_kvm: silence the compiler warnings Thomas Huth
2020-12-16 17:29 ` [PULL 07/12] accel/tcg/user-exec: " Thomas Huth
2020-12-16 17:29 ` [PULL 08/12] target/sparc/translate: " Thomas Huth
2020-12-16 17:29 ` [PULL 09/12] target/sparc/win_helper: " Thomas Huth
2020-12-16 17:29 ` [PULL 10/12] tcg/optimize: Add fallthrough annotations Thomas Huth
2020-12-16 17:29 ` [PULL 11/12] tests/fp: Do not emit implicit-fallthrough warnings in the softfloat tests Thomas Huth
2020-12-16 17:29 ` Thomas Huth [this message]
2020-12-16 23:01 ` [PULL 00/12] Compile QEMU with -Wimplicit-fallthrough no-reply
2020-12-17 6:09 ` Thomas Huth
2020-12-17 12:51 ` Peter Maydell
2020-12-17 13:03 ` Thomas Huth
2020-12-17 14:00 ` Status/future of QEMU bsd-user impl ? (Wea Re: [PULL 00/12] Compile QEMU with -Wimplicit-fallthrough) Daniel P. Berrangé
2020-12-17 16:03 ` Warner Losh
2020-12-17 16:20 ` Peter Maydell
2020-12-17 17:10 ` Warner Losh
2020-12-17 17:59 ` Warner Losh
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