linux-user/s390x/signal.c | 2 ++ 1 file changed, 2 insertions(+)
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 <iii@linux.ibm.com>
---
linux-user/s390x/signal.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index 4979c4b017..f72165576f 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]);
}
--
2.37.1
Le 17/08/2022 à 14:39, Ilya Leoshkevich a écrit : > 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 <iii@linux.ibm.com> > --- > linux-user/s390x/signal.c | 2 ++ > 1 file changed, 2 insertions(+) Applied to my linux-user-for-7.2 branch. Thanks, Laurent
On 8/17/22 07:39, Ilya Leoshkevich wrote: > 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 <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
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