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authorRichard Henderson <richard.henderson@linaro.org>2021-04-28 12:34:06 -0700
committerLaurent Vivier <laurent@vivier.eu>2021-05-15 21:44:38 +0200
commit9e0fb648b259981350777020717bba8365957b0f (patch)
treed95b6e78289d9cf3fbe6d02a52d8e228c727175e /linux-user
parentac1a92ec8f1328141707965bb1df4252fdb76b68 (diff)
linux-user/s390x: Add build asserts for sigset sizes
At point of usage, it's not immediately obvious that we don't need a loop to copy these arrays. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20210428193408.233706-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/s390x/signal.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index 81ba59b46a..839a7ae4b3 100644
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -141,6 +141,8 @@ void setup_frame(int sig, struct target_sigaction *ka,
return;
}
+ /* Make sure that we're initializing all of oldmask. */
+ QEMU_BUILD_BUG_ON(ARRAY_SIZE(frame->sc.oldmask) != 1);
__put_user(set->sig[0], &frame->sc.oldmask[0]);
save_sigregs(env, &frame->sregs);
@@ -266,6 +268,9 @@ long do_sigreturn(CPUS390XState *env)
force_sig(TARGET_SIGSEGV);
return -TARGET_QEMU_ESIGRETURN;
}
+
+ /* Make sure that we're initializing all of target_set. */
+ QEMU_BUILD_BUG_ON(ARRAY_SIZE(target_set.sig) != 1);
__get_user(target_set.sig[0], &frame->sc.oldmask[0]);
target_to_host_sigset_internal(&set, &target_set);