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linux-user/s390x: Add build asserts for sigset sizes

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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>
This commit is contained in:
Richard Henderson 2021-04-28 12:34:06 -07:00 committed by Laurent Vivier
parent ac1a92ec8f
commit 9e0fb648b2
1 changed files with 5 additions and 0 deletions
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5
linux-user/s390x/signal.c
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@ -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);