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arch/x86_64/Makefile

537 bytes raw

 1ifndef KERNEL_SRC
 2$(error KERNEL_SRC undefined)
 3endif
 4
 5ifndef KERNEL_ELF
 6$(error KERNEL_ELF undefined)
 7endif
 8
 9ifndef BUILD
10$(error BUILD undefined)
11endif
12
13CC := x86_64-elf-gcc
14
15CFLAGS += \
16	-mno-red-zone -mgeneral-regs-only \
17	-Iarch/x86_64/include
18
19LDFLAGS += \
20	-Tarch/x86_64/linker.ld
21
22ARCH_SRC := \
23	arch/x86_64/entry.S
24
25SRC := $(KERNEL_SRC) $(ARCH_SRC)
26OBJ := $(patsubst %,$(BUILD)/%.o,$(SRC))
27
28$(KERNEL_ELF): $(OBJ)
29	@mkdir -p $(dir $@)
30	$(CC) $(LDFLAGS) -o $@ $^
31
32$(BUILD)/%.o: %
33	@mkdir -p $(dir $@)
34	$(CC) $(CFLAGS) -o $@ -c $<