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- .POSIX:
- .PHONY: all clean run
- ARCH = $(shell uname -m | sed s,i[3456789]86,ia32,)
- OBJS = main.o
- TARGET = hello.efi
- EFIINC = /usr/include/efi
- EFIINCS = -I$(EFIINC) -I$(EFIINC)/$(ARCH) -I$(EFIINC)/protocol
- LIB = /usr/lib
- EFILIB = /usr/lib
- EFI_CRT_OBJS = $(EFILIB)/crt0-efi-$(ARCH).o
- EFI_LDS = $(EFILIB)/elf_$(ARCH)_efi.lds
- CFLAGS = $(EFIINCS) -fno-stack-protector -fpic -fshort-wchar -mno-red-zone -Wall
- ifeq ($(ARCH),x86_64)
- CFLAGS += -DEFI_FUNCTION_WRAPPER
- endif
- LDFLAGS = -nostdlib -znocombreloc -T $(EFI_LDS) -shared \
- -Bsymbolic -L $(EFILIB) -L $(LIB) $(EFI_CRT_OBJS)
- all: $(TARGET)
- hello.so: $(OBJS)
- ld $(LDFLAGS) $(OBJS) -o $@ -lefi -lgnuefi
- %.efi: %.so
- objcopy -j .text -j .sdata -j .data -j .dynamic \
- -j .dynsym -j .rel -j .rela -j .reloc \
- --target=efi-app-$(ARCH) $^ $@
- run: all
- qemu-system-x86_64 -bios ovmf.fd
- clean:
- rm -f *.efi *.o *.so
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