1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/arch/um/os-Linux/internal.h b/kernel/arch/um/os-Linux/internal.h
new file mode 100644
index 000000000..0dc2c9f13
--- /dev/null
+++ b/kernel/arch/um/os-Linux/internal.h
@@ -0,0 +1 @@
+void alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc);