Initial commit

Signed-off-by: Danny Holman <dholman@gymli.xyz>

1 files changed, 72 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c42fa08
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,72 @@
+CC=i686-elf-gcc
+CFLAGS?=-O2 -g
+LDFLAGS?=
+LIBS?=
+
+CFLAGS:=$(CFLAGS) -ffreestanding -Wall -Wextra -Iinclude
+LDFLAGS:=$(LDFLAGS)
+LIBS:=$(LIBS) -nostdlib -lgcc
+
+ARCHDIR=arch/i386
+
+include $(ARCHDIR)/make.config
+
+CFLAGS:=$(CFLAGS) $(KERNEL_ARCH_CFLAGS)
+LDFLAGS:=$(LDFLAGS) $(KERNEL_ARCH_LDFLAGS)
+LIBS:=$(LIBS) $(KERNEL_ARCH_LIBS)
+
+KERNEL=vmbox
+
+KERNEL_OBJS=$(KERNEL_ARCH_OBJS) \
+	    kernel/init.o \
+	    kernel/string.o \
+	    kernel/io.o \
+
+OBJS=$(ARCHDIR)/crti.o \
+     $(ARCHDIR)/crtbegin.o \
+     $(KERNEL_OBJS) \
+     $(ARCHDIR)/crtend.o \
+     $(ARCHDIR)/crtn.o \
+
+LINK_LIST=$(LDFLAGS) \
+	  $(ARCHDIR)/crti.o \
+	  $(ARCHDIR)/crtbegin.o \
+	  $(KERNEL_OBJS) \
+	  $(LIBS) \
+	  $(ARCHDIR)/crtend.o \
+	  $(ARCHDIR)/crtn.o \
+
+.PHONY: all clean install install-headers install-kernel
+.SUFFIXES: .o .c .s
+
+all: $(KERNEL)
+
+$(KERNEL): $(OBJS) $(ARCHDIR)/linker.ld
+	@$(CC) -T $(ARCHDIR)/linker.ld -o $@ $(CFLAGS) $(LINK_LIST)
+	@echo [LD] $@
+
+$(ARCHDIR)/crtbegin.o $(ARCHDIR)/crtend.o:
+	@OBJ=`$(CC) $(CFLAGS) $(LDFLAGS) -print-file-name=$(@F)` && cp "$$OBJ" $@
+
+.c.o:
+	@$(CC) -MD -c $< -o $@ -std=gnu11 $(CFLAGS)
+	@echo [CC] $@
+
+.s.o:
+	@$(CC) -MD -c $< -o $@ $(CFLAGS)
+	@echo [CC] $@
+
+clean:
+	$(RM) $(KERNEL)
+	$(RM) $(OBJS) *.o */*.o */*/*.o
+	$(RM) $(OBJS:.o=.d) *.d */*.d */*/*.d
+
+install: install-headers install-kernel
+
+install-headers:
+	mkdir -p $(DESTDIR)$(INCLUDEDIR)
+	cp -R --preserve-timestamps include/. $(DESTDIR)$(INCLUDEDIR)/.
+
+install-kernel: $(KERNEL)
+	mkdir -p $(DESTDIR)$(BOOTDIR)
+	cp $(KERNEL) $(DESTDIR)$(BOOTDIR)