FENIX_kernel/makefile
2020-12-01 21:01:03 -06:00

69 lines
1.7 KiB
Makefile
Executable file

DEFAULT_HOST!=../default-host.sh
HOST?=DEFAULT_HOST
HOSTARCH!=../target-triplet-to-arch.sh $(HOST)
CFLAGS?=-O2 -g
CPPFLAGS?=
LDFLAGS?=
LIBS?=
DESTDIR?=
PREFIX?=/usr/local
EXEC_PREFIX?=$(PREFIX)
BOOTDIR?=$(EXEC_PREFIX)/boot
INCLUDEDIR?=$(PREFIX)/include
CFLAGS:=$(CFLAGS) -ffreestanding -Wall -Wextra
CPPFLAGS:=$(CPPFLAGS) -D__is_kernel -Iinclude
LDFLAGS:=$(LDFLAGS)
LIBS:=$(LIBS) -nostdlib -lk -lgcc
ARCHDIR=arch/$(HOSTARCH)
include $(ARCHDIR)/make.config
CFLAGS:=$(CFLAGS) $(KERNEL_ARCH_CFLAGS)
CPPFLAGS:=$(CPPFLAGS) $(KERNEL_ARCH_CPPFLAGS)
LDFLAGS:=$(LDFLAGS) $(KERNEL_ARCH_LDFLAGS)
LIBS:=$(LIBS) $(KERNEL_ARCH_LIBS)
KERNEL_OBJS=$(KERNEL_ARCH_OBJS) kernel/kernel.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: fenix.kernel
fenix.kernel: $(OBJS) $(ARCHDIR)/linker.ld
$(CC) -T $(ARCHDIR)/linker.ld -o $@ $(CFLAGS) $(LINK_LIST)
#grub-file --is-x86-multiboot fenix.kernel
$(ARCHDIR)/crtbegin.o $(ARCHDIR)/crtend.o:
OBJ=`$(CC) $(CFLAGS) $(LDFLAGS) -print-file-name=$(@F)` && cp "$$OBJ" $@
.c.o:
$(CC) -MD -c $< -o $@ -std=c99 $(CFLAGS) $(CPPFLAGS)
.S.o:
$(CC) -MD -c $< -o $@ $(CFLAGS) $(CPPFLAGS)
clean:
rm -f fenix.kernel
rm -f $(OBJS) *.o */*.o */*/*.o
rm -f $(OBJS:.o=.d) *.d */*.d */*/*.d
install: install-headers install-kernel
install-headers:
mkdir -p $(DESTDIR)$(INCLUDEDIR)
cp -R include/. $(DESTDIR)$(INCLUDEDIR)/.
install-kernel: fenix.kernel
mkdir -p $(DESTDIR)$(BOOTDIR)
cp fenix.kernel $(DESTDIR)$(BOOTDIR)
-include $(OBJS:.o=.d)