nuclear@65: ifneq ($(shell uname -m), i386)
nuclear@72: 	# -m32 instructs the compiler to produce 32bit code
nuclear@65: 	ccemu = -m32
nuclear@65: 
nuclear@65: 	ifeq ($(shell uname -s), FreeBSD)
nuclear@66: 		ldemu = -m elf_i386_fbsd
nuclear@65: 	else
nuclear@66: 		ldemu = -m elf_i386
nuclear@65: 	endif
nuclear@65: endif
nuclear@65: 
nuclear@0: # collect all of our C and assembly source files
nuclear@10: csrc = $(wildcard src/boot/*.c) $(wildcard src/*.c) $(wildcard src/klibc/*.c)
nuclear@10: asmsrc = $(wildcard src/boot/*.S) $(wildcard src/*.S) $(wildcard src/klibc/*.S)
nuclear@7: dep = $(asmsrc:.S=.d) $(csrc:.c=.d)
nuclear@0: 
nuclear@0: # each source file will generate one object file
nuclear@2: obj = $(asmsrc:.S=.o) $(csrc:.c=.o)
nuclear@0: 
nuclear@0: CC = gcc
nuclear@0: 
nuclear@72: inc = -Isrc -Isrc/klibc -Isrc/boot -Iinclude
nuclear@16: 
nuclear@0: # -nostdinc instructs the compiler to ignore standard include directories
nuclear@72: CFLAGS = $(ccemu) -Wall -g -nostdinc -fno-builtin $(inc) -DKERNEL
nuclear@65: ASFLAGS = $(ccemu) -g -nostdinc -fno-builtin $(inc)
nuclear@0: 
nuclear@0: bin = kernel.elf
nuclear@0: 
nuclear@0: # default target: make an ELF binary by linking the object files
nuclear@1: # we need to specify where to assume the text section (code) is going
nuclear@1: # in memory, as well as the kernel entry point (kentry).
nuclear@0: $(bin): $(obj)
nuclear@65: 	ld $(ldemu) -o $@ -Ttext 0x100000 -e kentry $(obj) -Map link.map
nuclear@0: 
nuclear@38: %.s: %.c
nuclear@38: 	$(CC) $(CFLAGS) -S -o $@ $<
nuclear@38: 
nuclear@7: -include $(dep)
nuclear@7: 
nuclear@7: %.d: %.c
nuclear@7: 	@$(CPP) $(CFLAGS) -MM -MT $(@:.d=.o) $< >$@
nuclear@7: 
nuclear@7: %.d: %.S
nuclear@7: 	@$(CPP) $(ASFLAGS) -MM -MT $(@:.d=.o) $< >$@
nuclear@7: 
nuclear@0: .PHONY: clean
nuclear@0: clean:
nuclear@0: 	rm -f $(obj) $(bin)
nuclear@7: 
nuclear@7: .PHONY: cleandep
nuclear@7: cleandep:
nuclear@7: 	rm -f $(dep)