From 9e0fb648b259981350777020717bba8365957b0f Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 28 Apr 2021 12:34:06 -0700 Subject: [PATCH] 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 Reviewed-by: David Hildenbrand Message-Id: <20210428193408.233706-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- linux-user/s390x/signal.c | 5 +++++ 1 file changed, 5 insertions(+) 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);