From: Richard Henderson <richard.hender...@linaro.org>
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 <richard.hender...@linaro.org>
Reviewed-by: Alex Bennée <alex.ben...@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Message-Id: <20210422230227.314751-5-richard.hender...@linaro.org>
Signed-off-by: Laurent Vivier <laur...@vivier.eu>
---
linux-user/syscall.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 1f282574a12c..7b139a9c3a55 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
--
2.31.1
