rulimine/stage23/Makefile

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Makefile
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TARGET =
BUILDDIR =
ifeq ($(BUILDDIR), )
$(error BUILDDIR not specified)
endif
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ifeq ($(TARGET), bios)
TOOLCHAIN=i386-elf
else ifeq ($(TARGET), uefi)
TOOLCHAIN=x86_64-elf
else
$(error Invalid target)
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endif
CC = $(TOOLCHAIN)-gcc
LD = $(TOOLCHAIN)-ld
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OBJCOPY = $(TOOLCHAIN)-objcopy
OBJDUMP = $(TOOLCHAIN)-objdump
READELF = $(TOOLCHAIN)-readelf
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COM_OUTPUT = false
E9_OUTPUT = false
BUILD_ID := $(shell dd if=/dev/urandom count=8 bs=1 | od -An -t x8 | sed 's/^ /0x/')
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LIMINE_VERSION := $(shell git describe --exact-match --tags `git log -n1 --pretty='%h'` || ( git log -n1 --pretty='%h' && echo -n "(trunk)" ) )
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WERROR = -Werror
CFLAGS = -O3 -g -pipe -Wall -Wextra $(WERROR)
S2CFLAGS = -Os -g -pipe -Wall -Wextra $(WERROR)
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INTERNAL_CFLAGS := \
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-std=gnu11 \
-fplan9-extensions \
-ffreestanding \
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-fno-stack-protector \
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-fno-omit-frame-pointer \
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-fno-lto \
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-Wno-address-of-packed-member \
-masm=intel \
-mgeneral-regs-only \
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-MMD \
-DBUILD_ID=$(BUILD_ID) \
-DLIMINE_VERSION='"$(LIMINE_VERSION)"' \
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-DCOM_OUTPUT=$(COM_OUTPUT) \
-DE9_OUTPUT=$(E9_OUTPUT) \
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-D$(TARGET)=1 \
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-I. \
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-I..
ifeq ($(TARGET), bios)
INTERNAL_CFLAGS += \
-fno-pic
endif
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ifeq ($(TARGET), uefi)
INTERNAL_CFLAGS += \
-I../gnu-efi/inc \
-I../gnu-efi/inc/x86_64 \
-fpic \
-mno-red-zone
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endif
LDFLAGS = -O3 -g
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INTERNAL_LDFLAGS := \
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-fno-lto \
-nostdlib \
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-z max-page-size=0x1000
ifeq ($(TARGET), bios)
INTERNAL_LDFLAGS += \
-static \
-fno-pie \
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-lgcc \
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-static-libgcc
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endif
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.PHONY: all clean builddir
C_FILES := $(shell find -L ./ -type f -name '*.c' | sort)
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ifeq ($(TARGET), bios)
ASM_FILES := $(shell find -L ./ -type f -name '*.asm' | sort)
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OBJ := $(addprefix $(BUILDDIR)/, $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o))
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endif
ifeq ($(TARGET), uefi)
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ASM_FILES := $(shell find -L ./ -type f -name '*.asm64' | sort)
OBJ := $(addprefix $(BUILDDIR)/, $(ASM_FILES:.asm64=.o) $(C_FILES:.c=.o))
endif
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HEADER_DEPS := $(addprefix $(BUILDDIR)/, $(C_FILES:.c=.d))
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ifeq ($(TARGET), bios)
all:
$(MAKE) builddir
$(MAKE) $(BUILDDIR)/limine_dbg.elf $(BUILDDIR)/limine.sys $(BUILDDIR)/stage2.bin $(BUILDDIR)/stage2.bin.gz
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else ifeq ($(TARGET), uefi)
all:
$(MAKE) builddir
$(MAKE) $(BUILDDIR)/BOOTX64.EFI
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endif
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builddir:
for i in $(OBJ); do mkdir -p `dirname $$i`; done
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$(BUILDDIR)/sys/smp_trampoline.bin: sys/smp_trampoline.real
nasm $< -f bin -o $@
$(BUILDDIR)/sys/smp_trampoline.o: $(BUILDDIR)/sys/smp_trampoline.bin
cd "`dirname $<`" && \
$(OBJCOPY) -B i8086 -I binary -O default "`basename $<`" $@
$(BUILDDIR)/font.o: font.bin
cd "`dirname $<`" && \
$(OBJCOPY) -B i8086 -I binary -O default "`basename $<`" $@
ifeq ($(TARGET), bios)
$(BUILDDIR)/stage2.bin.gz: $(BUILDDIR)/stage2.bin
gzip -n -9 < $< > $@
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$(BUILDDIR)/stage2.bin: $(BUILDDIR)/limine.sys
dd if=$< bs=$$(( 0x$$($(READELF) -S $(BUILDDIR)/limine.elf | grep .stage3.text | sed 's/^.*] //' | awk '{print $$3}' | sed 's/^0*//') - 0x8000 )) count=1 of=$@
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$(BUILDDIR)/stage2.map.o: $(BUILDDIR)/limine_stage2only.elf
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GENSYMS="`pwd`/gensyms.sh" && \
cd "`dirname $<`" && \
"$$GENSYMS" $(OBJDUMP) $< stage2
$(BUILDDIR)/full.map.o: $(BUILDDIR)/limine_nomap.elf
GENSYMS="`pwd`/gensyms.sh" && \
cd "`dirname $<`" && \
"$$GENSYMS" $(OBJDUMP) $< full
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$(BUILDDIR)/limine.sys: $(BUILDDIR)/limine.elf
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$(OBJCOPY) -O binary $< $@
$(BUILDDIR)/limine_stage2only.elf: $(OBJ)
$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_stage2only.ld -o $@ || \
( echo "This error means that stage 2 was trying to use stage 3 symbols before loading stage 3" && \
false )
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$(BUILDDIR)/limine_nomap.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o
$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_nomap.ld -o $@
$(BUILDDIR)/limine.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o $(BUILDDIR)/full.map.o
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker.ld -o $@
$(BUILDDIR)/limine_dbg.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o $(BUILDDIR)/full.map.o
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_dbg.ld -o $@
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endif
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ifeq ($(TARGET), uefi)
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$(BUILDDIR)/BOOTX64.EFI: $(BUILDDIR)/limine_efi.elf
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$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .rel.* -j .rela.* -j .reloc --target efi-app-x86_64 --subsystem=10 $< $@
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$(BUILDDIR)/limine_efi.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o
$(LD) -shared -Bsymbolic \
-T../gnu-efi/gnuefi/elf_x86_64_efi.lds \
../gnu-efi/gnuefi/crt0-efi-x86_64.o \
../gnu-efi/gnuefi/libgnuefi.a \
../gnu-efi/lib/x86_64/efi_stub.o \
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$^ -o $@
endif
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-include $(HEADER_DEPS)
$(BUILDDIR)/%.o: %.c
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$(CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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-include $(HEADER_DEPS)
ifeq ($(TARGET), bios)
$(BUILDDIR)/%.s2.o: %.s2.c
$(CC) $(S2CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
endif
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-include $(HEADER_DEPS)
ifeq ($(TARGET), uefi)
$(BUILDDIR)/%.32.o: %.32.c
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$(CC) -m32 $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@.32
$(OBJCOPY) -I elf32-i386 -O elf64-x86-64 $@.32 $@
rm $@.32
endif
$(BUILDDIR)/%.o: %.asm
nasm $< -F dwarf -g -f elf32 -o $@
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$(BUILDDIR)/%.o: %.asm64
nasm $< -F dwarf -g -f elf64 -o $@
clean:
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rm -rf $(BUILDDIR)