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build: add initial Bootloader implementation
Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
137
Bootloader/uefi/Makefile
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137
Bootloader/uefi/Makefile
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@ -0,0 +1,137 @@
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BOOT_FILENAME = BOOTX64.EFI
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GNUEFI_RELEASE_VERSION=3.0.18
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GIT_COMMIT = $(shell git rev-parse HEAD)
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GIT_COMMIT_SHORT = $(shell git rev-parse --short HEAD)
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HEADERS := $(sort $(dir $(wildcard ../include/*)))
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INCLUDE_DIR = -I../include
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define find-sources
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$(shell find ./ -type f -name '$1' -print0 | xargs -0)
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endef
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BMP_SOURCES := $(call find-sources,*.bmp)
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PSF_SOURCES := $(call find-sources,*.psf)
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S_SOURCES := $(call find-sources,*.S)
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s_SOURCES := $(call find-sources,*.s)
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C_SOURCES := $(call find-sources,*.c)
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CXX_SOURCES := $(call find-sources,*.cpp)
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OBJ = $(BMP_SOURCES:.bmp=.o) $(PSF_SOURCES:.psf=.o) $(s_SOURCES:.s=.o) $(S_SOURCES:.S=.o) $(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o)
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LDFLAGS = -static -nostdlib -nodefaultlibs -nolibc \
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-Wl,-static,--no-dynamic-linker,-ztext \
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-zmax-page-size=0x1000 \
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-Wl,-Map kernel.map -fno-pic -fno-pie
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# Disable all warnings by adding "-w" in WARNCFLAG and if you want to treat the warnings as errors, add "-Werror"
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# -Wconversion this may be re-added later
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WARNCFLAG = -Wall -Wextra \
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-Wfloat-equal -Wpointer-arith -Wcast-align \
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-Wredundant-decls -Winit-self -Wswitch-default \
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-Wstrict-overflow=5 -Wno-error=cpp -Werror \
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-Wno-unused-parameter -Wno-error=format
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CFLAG_STACK_PROTECTOR := -fstack-protector-all
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# https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
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CFLAGS := \
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$(INCLUDE_DIR) \
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-D__kernel__='1' \
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-DKERNEL_NAME='"$(OSNAME)"' \
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-DKERNEL_ARCH='"$(OSARCH)"' \
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-DKERNEL_VERSION='"$(KERNEL_VERSION)"' \
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-DGIT_COMMIT='"$(GIT_COMMIT)"' \
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-DGIT_COMMIT_SHORT='"$(GIT_COMMIT_SHORT)"' \
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-fno-pic -fno-pie -fno-builtin
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ifeq ($(OSARCH), amd64)
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CFLAGS += -march=core2 -mcmodel=kernel -m64 -mno-red-zone
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LDFLAGS += -T../linker.ld
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else ifeq ($(OSARCH), i386)
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CFLAGS += -march=pentium -m32 -mno-red-zone
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LDFLAGS += -T../linker.ld
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else ifeq ($(OSARCH), arm)
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CFLAGS += -march=armv7-a -mfloat-abi=softfp -ggdb3
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LDFLAGS += -T../linker.ld
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WARNCFLAG += -w
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else ifeq ($(OSARCH), aarch64)
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CFLAGS += -march=armv9.4-a -mtune=cortex-a72 -mlittle-endian -mcmodel=large
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LDFLAGS += -T../linker.ld
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endif # OSARCH
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# -finstrument-functions for __cyg_profile_func_enter & __cyg_profile_func_exit. Used for profiling and debugging.
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ifeq ($(DEBUG), 1)
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# CFLAGS += --coverage
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# CFLAGS += -pg
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# CFLAGS += -finstrument-functions
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CFLAGS += -DDEBUG -ggdb3 -O0 -fdiagnostics-color=always -fstack-usage -fsanitize=undefined
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ifeq ($(OSARCH), amd64)
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CFLAGS += -fverbose-asm
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endif # amd64
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ifeq ($(OSARCH), arm)
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CFLAGS += -fstack-check -fverbose-asm
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endif # arm
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ifeq ($(OSARCH), aarch64)
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CFLAGS += -fstack-check -fverbose-asm
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endif # aarch64
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LDFLAGS += -ggdb3 -O0
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ASFLAGS += -g --gstabs+ --gdwarf-5 -D
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WARNCFLAG += -Wno-unused-function -Wno-maybe-uninitialized -Wno-builtin-declaration-mismatch -Wno-unknown-pragmas -Wno-unused-parameter -Wno-unused-variable
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endif # DEBUG
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default:
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$(error Do not run this Makefile directly!)
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build: $(BOOT_FILENAME)
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$(BOOT_FILENAME): $(OBJ)
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$(info Linking $@)
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$(LD) -shared -Bsymbolic -L../gnu-efi/x86_64/lib -L../gnu-efi/x86_64/gnuefi -T../gnu-efi/gnuefi/elf_x86_64_efi.lds ../gnu-efi/x86_64/gnuefi/crt0-efi-x86_64.o $(OBJ) -o tmp.so -lgnuefi -lefi
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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 tmp.so BOOTX64.EFI
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rm tmp.so
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%.o: %.c $(HEADERS)
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$(info Compiling $<)
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$(CC) -I../include -fpic -ffreestanding -fno-stack-protector -fno-stack-check -fshort-wchar -mno-red-zone -maccumulate-outgoing-args -c $< -o $@
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%.o: %.cpp $(HEADERS)
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$(info Compiling $<)
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$(CC) -I../include -fpic -ffreestanding -fno-stack-protector -fno-stack-check -fshort-wchar -mno-red-zone -maccumulate-outgoing-args -c $< -o $@
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%.o: %.S
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$(info Compiling $<)
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$(AS) $(ASFLAGS) -c $< -o $@
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%.o: %.s
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$(info Compiling $<)
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$(AS) $(ASFLAGS) -c $< -o $@
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%.o: %.psf
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ifeq ($(OSARCH), amd64)
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$(OBJCOPY) -O elf64-x86-64 -I binary $< $@
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else ifeq ($(OSARCH), i386)
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$(OBJCOPY) -O elf32-i386 -I binary $< $@
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else ifeq ($(OSARCH), arm)
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$(OBJCOPY) -O elf32-littlearm -I binary $< $@
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else ifeq ($(OSARCH), aarch64)
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$(OBJCOPY) -O elf64-littleaarch64 -I binary $< $@
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endif
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$(NM) $@
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%.o: %.bmp
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ifeq ($(OSARCH), amd64)
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$(OBJCOPY) -O elf64-x86-64 -I binary $< $@
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else ifeq ($(OSARCH), i386)
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$(OBJCOPY) -O elf32-i386 -I binary $< $@
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else ifeq ($(OSARCH), arm)
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$(OBJCOPY) -O elf32-littlearm -I binary $< $@
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else ifeq ($(OSARCH), aarch64)
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$(OBJCOPY) -O elf64-littlearch64 -I binary $< $@
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endif
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$(NM) $@
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clean:
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rm -f kernel.map kernel_dump.map kernel_dump_intel.map $(OBJ) $(STACK_USAGE_OBJ) $(GCNO_OBJ) $(BOOT_FILENAME)
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