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| author | Peter Maydell <peter.maydell@linaro.org> | 2020-12-30 20:45:42 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-12-30 20:45:43 +0000 |
| commit | 65a3c5984074313602fb5f61cc5f464abfb020c7 (patch) | |
| tree | 010b69e520c68e5efc7c8b152f2da412dd5383df /include | |
| parent | a05f8ecd88f15273d033b6f044b850a8af84a5b8 (diff) | |
| parent | 0a2ebce92a3f10a89843e4a7a8e2f2eba4f7b109 (diff) | |
| download | qemu-65a3c5984074313602fb5f61cc5f464abfb020c7.zip qemu-65a3c5984074313602fb5f61cc5f464abfb020c7.tar.gz qemu-65a3c5984074313602fb5f61cc5f464abfb020c7.tar.bz2 | |
Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-12-18' into staging
* Compile QEMU with -Wimplicit-fallthrough=2 to avoid bugs in
switch-case statements
# gpg: Signature made Fri 18 Dec 2020 08:19:04 GMT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/pull-request-2020-12-18:
configure: Compile with -Wimplicit-fallthrough=2
hw/rtc/twl92230: Add missing 'break'
bsd-user: Silence warnings about missing fallthrough statement
tests/fp: Do not emit implicit-fallthrough warnings in the softfloat tests
tcg/optimize: Add fallthrough annotations
target/sparc/win_helper: silence the compiler warnings
target/sparc/translate: silence the compiler warnings
accel/tcg/user-exec: silence the compiler warnings
hw/intc/arm_gicv3_kvm: silence the compiler warnings
target/i386: silence the compiler warnings in gen_shiftd_rm_T1
hw/timer/renesas_tmr: silence the compiler warnings
hw/rtc/twl92230: Silence warnings about missing fallthrough statements
target/unicore32/translate: Add missing fallthrough annotations
disas/libvixl: Fix fall-through annotation for GCC >= 7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/compiler.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 1b9e58e..df9ec08 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -222,4 +222,15 @@ extern void QEMU_NORETURN QEMU_ERROR("code path is reachable") #define qemu_build_not_reached() g_assert_not_reached() #endif +/** + * In most cases, normal "fallthrough" comments are good enough for + * switch-case statements, but sometimes the compiler has problems + * with those. In that case you can use QEMU_FALLTHROUGH instead. + */ +#if __has_attribute(fallthrough) +# define QEMU_FALLTHROUGH __attribute__((fallthrough)) +#else +# define QEMU_FALLTHROUGH do {} while (0) /* fallthrough */ +#endif + #endif /* COMPILER_H */ |