From 2941e0fa050314cd200f24e3b99da61440b106ab Mon Sep 17 00:00:00 2001 From: Ilya Leoshkevich Date: Wed, 17 Aug 2022 14:39:02 +0200 Subject: linux-user/s390x: Save/restore fpc when handling a signal Linux kernel does this in fpregs_store() and fpregs_load(), so qemu-user should do this as well. Found by running valgrind's none/tests/s390x/test_sig. Signed-off-by: Ilya Leoshkevich Reviewed-by: Richard Henderson Message-Id: <20220817123902.585623-1-iii@linux.ibm.com> Signed-off-by: Laurent Vivier --- linux-user/s390x/signal.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'linux-user') diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c index 4979c4b..f721655 100644 --- a/linux-user/s390x/signal.c +++ b/linux-user/s390x/signal.c @@ -146,6 +146,7 @@ static void save_sigregs(CPUS390XState *env, target_sigregs *sregs) * We have to store the fp registers to current->thread.fp_regs * to merge them with the emulated registers. */ + __put_user(env->fpc, &sregs->fpregs.fpc); for (i = 0; i < 16; i++) { __put_user(*get_freg(env, i), &sregs->fpregs.fprs[i]); } @@ -331,6 +332,7 @@ static void restore_sigregs(CPUS390XState *env, target_sigregs *sc) for (i = 0; i < 16; i++) { __get_user(env->aregs[i], &sc->regs.acrs[i]); } + __get_user(env->fpc, &sc->fpregs.fpc); for (i = 0; i < 16; i++) { __get_user(*get_freg(env, i), &sc->fpregs.fprs[i]); } -- cgit v1.1