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ARCH = $(shell uname -m | sed s,i[3456789]86,ia32,)
OBJS = hello.o
TARGET = hello.efi
TARGET_DEBUG = hello.debug
EFIINC = /usr/include/efi
EFFINCS = -I$(EFIINC) -I$(EFIINC)/$(ARCH) -I$(EFIINC)/protocol
EFILIB = /usr/lib
EFI_CRT_OBJS = $(EFILIB)/crt0-efi-$(ARCH).o
EFI_LDS = $(EFILIB)/elf_$(ARCH)_efi.lds
CFLAGS = $(EFFINCS) -fno-stack-protector -fpic \
-fshort-wchar -mno-red-zone -Wall
CFLAGS += -ggdb3 -O0 -DEFI_DEBUG=1
# -DDEBUG
ifeq ($(ARCH),x86_64)
CFLAGS += -DEFI_FUNCTION_WRAPPER
endif
LDFLAGS = -nostdlib -znocombreloc -T $(EFI_LDS) -shared \
-Bsymbolic -L $(EFILIB) $(EFI_CRT_OBJS)
SECTIONS = .text .sdata .data .dynamic .dynsym .rel .rela .reloc
DEBUG_SECTIONS = .debug_info .debug_abbrev .debug_aranges \
.debug_line .debug_str
all: clear $(TARGET) $(TARGET_DEBUG)
cp hello.efi ../test_code/hda-contents/
hello.so: $(OBJS)
ld $(LDFLAGS) $(OBJS) -o $@ -lefi -lgnuefi
%.efi: %.so
objcopy $(foreach sec,$(SECTIONS),-j $(sec)) \
--target=efi-app-$(ARCH) $^ $@
%.debug: %.so
objcopy $(foreach sec,$(SECTIONS) $(DEBUG_SECTIONS),-j $(sec)) \
--target=efi-app-$(ARCH) $^ $@
clear:
rm -f *.efi
rm -f *.debug
rm -f *.o
rm -f *.so
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