88 lines
1.6 KiB
Plaintext
88 lines
1.6 KiB
Plaintext
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AS := nasm
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CC := clang
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LD := lld
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DAS := objdump
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ifneq '$(AS_ENV)' ''
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AS := $(AS_ENV)
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endif
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$(info Using AS=$(AS))
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ifneq '$(CC_ENV)' ''
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CC := $(CC_ENV)
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endif
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$(info Using CC=$(CC))
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ifneq '$(LD_ENV)' ''
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LD := $(LD_ENV)
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endif
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$(info Using LD=$(LD))
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ifneq '$(DAS_ENV)' ''
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DAS := $(DAS_ENV)
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endif
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$(info Using DAS=$(DAS))
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INC_COMMON := inc
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MK := mk
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OUT := out
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C_FLAGS_ARCH_X86_64 := -mcmodel=kernel \
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-target x86_64-pc-none-elf \
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-mno-red-zone \
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-mno-mmx \
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-mno-sse \
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-mno-sse2 \
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-mno-sse3 \
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-mno-3dnow
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# generic freestanding cflags used for target
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# each submodule can append to this flag
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C_FLAGS = -x c \
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-g \
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-c \
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-O2 \
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-std=c17 \
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-Wall \
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-Wextra \
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-Wpedantic \
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-Werror \
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-ffreestanding \
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-fno-pic \
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-fno-stack-protector \
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$(C_FLAGS_ARCH_X86_64) \
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-I$(INC_COMMON) \
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$(C_FLAGS_$(MOD))
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# generic asm flags used for target
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# each submodule can append to this flag
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AS_FLAGS = -w+all \
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-w+error \
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-f elf64 \
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-F dwarf \
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-g \
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-I$(INC_COMMON) \
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$(AS_FLAGS_$(MOD))
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# generic pre-processing flags used for target
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PREP_FLAGS = -E \
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-xc\
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-P \
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-I$(INC_COMMON) \
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$(C_FLAGS_$(MOD))
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# generic generate dependency flags used for target
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# each submodule can append to this flag
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GDEP_FLAGS = $(PREP_FLAGS) \
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-MMD \
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-MT $@
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MKDIR = mkdir -p $(dir $@)
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COMP = $(CC) $(C_FLAGS) -o $@ $<
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COMPAS = $(AS) $(AS_FLAGS) -o $@ $<
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PREP = $(CC) $(PREP_FLAGS) $< > $@
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GDEP = $(CC) $(GDEP_FLAGS) -MF $(addsuffix .d, $@) $< > /dev/null
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include Rules.top
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