[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/arch/um/Makefile-os-Linux b/src/kernel/linux/v4.19/arch/um/Makefile-os-Linux
new file mode 100644
index 0000000..2c8a598
--- /dev/null
+++ b/src/kernel/linux/v4.19/arch/um/Makefile-os-Linux
@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+# Licensed under the GPL
+#
+
+# To get a definition of F_SETSIG
+USER_CFLAGS += -D_GNU_SOURCE -D_LARGEFILE64_SOURCE
+KBUILD_CFLAGS += -D_LARGEFILE64_SOURCE
+DEV_NULL_PATH = \"/dev/null\"