build system and some other stuff

1 files changed, 36 insertions, 0 deletions

diff --git a/sys/Makefile b/sys/Makefile
new file mode 100644
index 0000000..865a5a3
--- /dev/null
+++ b/sys/Makefile
@@ -0,0 +1,36 @@
+BUILDDIR=build/${TARGET}
+TARGETDIR=../mainboard/${TARGET}
+
+.if !exists(${TARGETDIR}/conf/mainboard.conf)
+.error 'ERROR: invalid target "${TARGET}"'
+.else
+.include <${TARGETDIR}/conf/mainboard.conf>
+.endif
+
+SRC=\
+    kern/entry.S\
+    kern/init.c\
+    kern/kernel_earlyprintf.c\
+    kern/mm/kalloc.c\
+    dev/sbi.c
+
+${BUILDDIR}/kernel.elf: ${SRC}
+	mkdir -p ${BUILDDIR}
+	${CROSS_COMPILE}gcc ${SRC} \
+		-Wl,--defsym=LOAD_ADDR=${LOAD_ADDR}\
+		-Wl,--defsym=PAGE_SIZE=${PAGE_SIZE}\
+		-Wl,--defsym=NPROC=${NPROC}\
+		-DPAGE_SIZE=${PAGE_SIZE}\
+		-I ./include\
+		${CFLAGS} -T kern/kernel.lds ${LDFLAGS}\
+		-L../lib/${BUILDDIR}/\
+		-l:libc.a\
+		-o $@
+
+debug: ${BUILDDIR}/kernel.elf
+	${DEBUG} ${BUILDDIR}/kernel.elf
+
+clean:
+	rm -rf ${BUILDDIR}
+
+.PHONY: debug clean