105 lines
3.0 KiB
Makefile
105 lines
3.0 KiB
Makefile
ifneq (,)
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This makefile requires GNU Make.
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endif
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BUILDDIR =
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override SPACE := $(subst ,, )
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MKESCAPE = $(subst $(SPACE),\ ,$(1))
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SHESCAPE = $(subst ','\'',$(1))
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OBJESCAPE = $(subst .a ,.a' ',$(subst .o ,.o' ',$(call SHESCAPE,$(1))))
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ifeq ($(call MKESCAPE,$(BUILDDIR)), )
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$(error BUILDDIR not specified)
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endif
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TOOLCHAIN ?= limine
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TOOLCHAIN_CC ?= $(TOOLCHAIN)-gcc
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TOOLCHAIN_LD ?= $(TOOLCHAIN)-ld
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TOOLCHAIN_OBJCOPY ?= $(TOOLCHAIN)-objcopy
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ifeq ($(shell command -v $(TOOLCHAIN_CC) ; ), )
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override TOOLCHAIN_CC := cc
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endif
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ifeq ($(shell command -v $(TOOLCHAIN_LD) ; ), )
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override TOOLCHAIN_LD := ld
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endif
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ifeq ($(shell command -v $(TOOLCHAIN_OBJCOPY) ; ), )
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override TOOLCHAIN_OBJCOPY := objcopy
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endif
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ifeq ($(TOOLCHAIN_CC), clang)
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override TOOLCHAIN_CC += --target=i686-elf
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endif
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WERROR = -Werror
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CFLAGS ?= -Os -pipe -Wall -Wextra $(WERROR)
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override INTERNAL_CFLAGS := \
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-m32 \
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-march=i686 \
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-mtune=generic \
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-mabi=sysv \
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-std=gnu11 \
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-ffreestanding \
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-fno-stack-protector \
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-fno-pic \
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-fno-pie \
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-fomit-frame-pointer \
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-Wno-address-of-packed-member \
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-mno-80387 \
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-mno-mmx \
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-mno-3dnow \
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-mno-sse \
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-mno-sse2 \
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-MMD \
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-I. \
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-I'$(call SHESCAPE,$(BUILDDIR))/tinf'
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LDFLAGS ?=
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override INTERNAL_LDFLAGS := \
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-melf_i386 \
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-nostdlib \
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-z max-page-size=0x1000 \
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-static \
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-Tlinker.ld
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override C_FILES := $(shell find -L ./ -type f -name '*.c')
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override ASM_FILES := $(shell find -L ./ -type f -name '*.asm')
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override OBJ := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o))
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override HEADER_DEPS := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(C_FILES:.c=.d))
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.PHONY: all
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all: $(call MKESCAPE,$(BUILDDIR))/decompressor.bin
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$(call MKESCAPE,$(BUILDDIR))/decompressor.bin: $(OBJ) $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
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$(TOOLCHAIN_LD) '$(call OBJESCAPE,$^)' $(LDFLAGS) $(INTERNAL_LDFLAGS) -o '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf'
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$(TOOLCHAIN_OBJCOPY) -O binary '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf' '$(call SHESCAPE,$@)'
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$(call MKESCAPE,$(BUILDDIR))/tinf-copied: ../tinf/*
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rm -rf '$(call SHESCAPE,$(BUILDDIR))/tinf'
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mkdir -p '$(call SHESCAPE,$(BUILDDIR))'
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cp -r ../tinf '$(call SHESCAPE,$(BUILDDIR))/'
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touch '$(call SHESCAPE,$(BUILDDIR))/tinf-copied'
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$(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
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dirname '$(call SHESCAPE,$@)' | xargs -d '\n' mkdir -p
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$(TOOLCHAIN_CC) $(CFLAGS) -Os $(INTERNAL_CFLAGS) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'
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-include $(HEADER_DEPS)
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$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied
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dirname '$(call SHESCAPE,$@)' | xargs -d '\n' mkdir -p
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$(TOOLCHAIN_CC) $(CFLAGS) -Os $(INTERNAL_CFLAGS) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
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$(call MKESCAPE,$(BUILDDIR))/%.o: %.asm
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dirname '$(call SHESCAPE,$@)' | xargs -d '\n' mkdir -p
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nasm '$(call SHESCAPE,$<)' -f elf32 -o '$(call SHESCAPE,$@)'
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.PHONY: clean
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clean:
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rm -rf '$(call SHESCAPE,$(BUILDDIR))'
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