limine/decompressor/Makefile
2021-12-08 17:41:19 +01:00

101 lines
2.9 KiB
Makefile

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