From ca192277db2bfc466840f19f2ee314a84fc78d5c Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 22 Apr 2021 16:02:24 -0700 Subject: [PATCH] linux-user: Honor TARGET_ARCH_HAS_SA_RESTORER in do_syscall MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Do not access a field that may not be present. This will become an issue when sharing more code in the next patch. Signed-off-by: Richard Henderson Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20210422230227.314751-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- linux-user/syscall.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 15b3af257b..a2e18b06c6 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9038,7 +9038,9 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, act._sa_handler = old_act->_sa_handler; target_siginitset(&act.sa_mask, old_act->sa_mask); act.sa_flags = old_act->sa_flags; +#ifdef TARGET_ARCH_HAS_SA_RESTORER act.sa_restorer = old_act->sa_restorer; +#endif unlock_user_struct(old_act, arg2, 0); pact = &act; } else { @@ -9051,7 +9053,9 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, old_act->_sa_handler = oact._sa_handler; old_act->sa_mask = oact.sa_mask.sig[0]; old_act->sa_flags = oact.sa_flags; +#ifdef TARGET_ARCH_HAS_SA_RESTORER old_act->sa_restorer = oact.sa_restorer; +#endif unlock_user_struct(old_act, arg3, 1); } #endif