stos: init: Add kernel C entry

Signed-off-by: Chloe M. <chloe@mensia.org>

paw/stos/ke/Makefile

@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2026, Chloe M.
+# Provided under the BSD-3 clause
+#
+# Description:  OS core build script
+# Author:		Chloe M.
+#
+
+.SILENT:
+include ../../mk/stos.mk
+
+CFILES = $(shell find ../init -name "*.c")
+DFILES = $(CFILES:.c=.d)
+OFILES = $(CFILES:.c=.o)
+
+CFLAGS =			\
+	$(SYS_CFLAGS)	\
+	-MMD			\
+	-D_KERNEL		\
+	-MMD			\
+	-DPRINTF_DISABLE_SUPPORT_PTRDIFF_T \
+	-DPRINTF_DISABLE_SUPPORT_FLOAT	   \
+	-I../head						   \
+	-I$(ST_PROJECT_ROOT)/sdk/head
+
+.PHONY: all
+all: $(OFILES)
+
+%.o: %.c
+	$(PROMPT) "CC" $<
+	$(SYS_CC) -c $(CFLAGS) $< -o $@