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VERSION=18
ARCH=$(shell $(CC) -dumpmachine | sed "s/\(-\).*$$//")
LIBDIR=$(shell echo $$(cd /usr/lib/$$(gcc -print-multi-os-directory); pwd))
LIBEFIDIR=$(or $(wildcard $(LIBDIR)/gnuefi), $(LIBDIR))
ifeq ($(ARCH),i686)
ARCH=ia32
MACHINE_TYPE_NAME=ia32
endif
ifeq ($(ARCH),x86_64)
MACHINE_TYPE_NAME=x64
ARCH_CFLAGS= \
-DEFI_FUNCTION_WRAPPER \
-mno-red-zone
endif
CPPFLAGS = \
-I. \
-I/usr/include/efi \
-I/usr/include/efi/$(ARCH)
CFLAGS = \
-DVERSION=$(VERSION) \
-Wall \
-Wextra \
-nostdinc \
-ggdb -O0 \
-fpic \
-fshort-wchar \
-nostdinc \
-ffreestanding \
-fno-strict-aliasing \
-fno-stack-protector \
-Wsign-compare \
$(ARCH_CFLAGS)
LDFLAGS = -T $(LIBEFIDIR)/elf_$(ARCH)_efi.lds \
-shared \
-Bsymbolic \
-nostdlib \
-znocombreloc \
-L $(LIBDIR) \
$(LIBEFIDIR)/crt0-efi-$(ARCH).o
%.o: %.c
$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
gummiboot$(MACHINE_TYPE_NAME).efi: gummiboot.so
objcopy -j .text -j .sdata -j .data -j .dynamic \
-j .dynsym -j .rel -j .rela -j .reloc -j .eh_frame \
--target=efi-app-$(ARCH) $< $@
gummiboot.so: gummiboot.o
$(LD) $(LDFLAGS) gummiboot.o -o $@ -lefi -lgnuefi \
$(shell $(CC) -print-libgcc-file-name)
gummiboot.o: gummiboot.c Makefile
clean:
rm -f gummiboot.o gummiboot.so gummiboot$(MACHINE_TYPE_NAME).efi
install:
cp gummiboot$(MACHINE_TYPE_NAME).efi /boot/EFI/gummiboot/
tar:
git archive --format=tar --prefix=gummiboot-$(VERSION)/ $(VERSION) | xz > gummiboot-$(VERSION).tar.xz
test-disk: gummiboot$(MACHINE_TYPE_NAME).efi test-create-disk.sh
./test-create-disk.sh
test: test-disk
qemu-kvm -m 256 -L /usr/lib/qemu-bios -snapshot test-disk
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