limine/decompressor/GNUmakefile
2023-03-23 01:02:58 +01:00

81 lines
2.1 KiB
Makefile

override MAKEFLAGS += -rR
include $(TOOLCHAIN_FILE)
export CC_FOR_TARGET
export LD_FOR_TARGET
export OBJDUMP_FOR_TARGET
export OBJCOPY_FOR_TARGET
export READELF_FOR_TARGET
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
override CFLAGS_FOR_TARGET += \
-Os \
-std=gnu11 \
-nostdinc \
-ffreestanding \
-fno-stack-protector \
-fno-stack-check \
-fomit-frame-pointer \
-fno-strict-aliasing \
-fno-lto \
-fno-pie \
-fno-pic \
-m32 \
-march=i686 \
-mabi=sysv \
-mno-80387 \
-Wshadow \
-Wvla
override CPPFLAGS_FOR_TARGET := \
-I../freestanding-headers \
-I./tinf \
-I. \
$(CPPFLAGS_FOR_TARGET) \
-MMD \
-MP
override LDFLAGS_FOR_TARGET += \
-m elf_i386 \
-nostdlib \
-z max-page-size=0x1000 \
-static \
-T linker.ld
ifeq ($(LD_FOR_TARGET_HAS_NO_PIE),yes)
override LDFLAGS_FOR_TARGET += -no-pie
endif
override C_FILES := $(shell find . -type f -name '*.c')
override ASM_FILES := $(shell find . -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) ../libgcc-binaries/libgcc-i686.a
$(LD_FOR_TARGET) '$(call OBJESCAPE,$^)' $(LDFLAGS_FOR_TARGET) -o '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf'
$(OBJCOPY_FOR_TARGET) -O binary '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf' '$(call SHESCAPE,$@)'
-include $(HEADER_DEPS)
$(call MKESCAPE,$(BUILDDIR))/%.o: %.c
$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
$(CC_FOR_TARGET) $(CFLAGS_FOR_TARGET) $(CPPFLAGS_FOR_TARGET) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'
$(call MKESCAPE,$(BUILDDIR))/%.o: %.asm
$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
nasm '$(call SHESCAPE,$<)' -f elf32 -o '$(call SHESCAPE,$@)'