limine/decompressor/Makefile
2021-08-07 07:26:34 +02:00

82 lines
1.6 KiB
Makefile

BUILDDIR =
ifeq ($(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)
INTERNAL_CFLAGS = \
-m32 \
-march=i386 \
-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.
LDFLAGS ?=
INTERNAL_LDFLAGS = \
-melf_i386 \
-nostdlib \
-z max-page-size=0x1000 \
-static \
-Tlinker.ld
.PHONY: all clean builddir
C_FILES := $(shell find -L ./ -type f -name '*.c' | sort)
ASM_FILES := $(shell find -L ./ -type f -name '*.asm' | sort)
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
builddir:
for i in $(OBJ); do mkdir -p `dirname $$i`; done
$(BUILDDIR)/decompressor.bin: $(OBJ)
$(TOOLCHAIN_LD) $(OBJ) $(LDFLAGS) $(INTERNAL_LDFLAGS) -o $(BUILDDIR)/decompressor.elf
$(TOOLCHAIN_OBJCOPY) -O binary $(BUILDDIR)/decompressor.elf $@
-include $(HEADER_DEPS)
$(BUILDDIR)/%.o: %.c
$(TOOLCHAIN_CC) $(CFLAGS) -Os $(INTERNAL_CFLAGS) -c $< -o $@
$(BUILDDIR)/%.o: %.asm
nasm $< -f elf32 -o $@
clean:
rm -rf $(BUILDDIR)