limine/decompressor/Makefile

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BUILDDIR =
ifeq ($(BUILDDIR), )
$(error BUILDDIR not specified)
endif
TOOLCHAIN = x86_64-elf
TOOLCHAIN_CC = $(TOOLCHAIN)-gcc
TOOLCHAIN_OBJCOPY = $(TOOLCHAIN)-objcopy
ifeq ($(shell which $(TOOLCHAIN_CC)), )
TOOLCHAIN_CC := gcc
endif
ifeq ($(shell which $(TOOLCHAIN_OBJCOPY)), )
TOOLCHAIN_OBJCOPY := objcopy
endif
CFLAGS = -flto -Os -pipe -Wall -Wextra -Werror
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INTERNAL_CFLAGS = \
-m32 \
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-march=i386 \
-std=gnu11 \
-ffreestanding \
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-fno-stack-protector \
-fno-pic \
-fno-pie \
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-fomit-frame-pointer \
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-Wno-address-of-packed-member \
-masm=intel \
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-mgeneral-regs-only \
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-MMD \
-I.
LDFLAGS = -flto -Os
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INTERNAL_LDFLAGS = \
-m32 \
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-march=i386 \
-Wl,-melf_i386 \
-nostdlib \
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-no-pie \
-fno-pic \
-fno-pie \
-z max-page-size=0x1000 \
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-static \
-Tlinker.ld
.PHONY: all clean builddir
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C_FILES := $(shell find -L ./ -type f -name '*.c' | sort)
ASM_FILES := $(shell find -L ./ -type f -name '*.asm' | sort)
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OBJ := $(addprefix $(BUILDDIR)/, $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o))
HEADER_DEPS := $(addprefix $(BUILDDIR)/, $(C_FILES:.c=.d))
all:
$(MAKE) builddir
$(MAKE) $(BUILDDIR)/decompressor.bin
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builddir:
for i in $(OBJ); do mkdir -p `dirname $$i`; done
$(BUILDDIR)/decompressor.bin: $(OBJ)
$(TOOLCHAIN_CC) $(OBJ) $(LDFLAGS) $(INTERNAL_LDFLAGS) -o $(BUILDDIR)/decompressor.elf
$(TOOLCHAIN_OBJCOPY) -O binary $(BUILDDIR)/decompressor.elf $@
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-include $(HEADER_DEPS)
$(BUILDDIR)/%.o: %.c
$(TOOLCHAIN_CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
$(BUILDDIR)/%.o: %.asm
nasm $< -f elf32 -o $@
clean:
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rm -rf $(BUILDDIR)