68 lines
2.0 KiB
Makefile
68 lines
2.0 KiB
Makefile
include $(MAKEDIR)/syslinux.mk
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com32 = $(topdir)/com32
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core = $(topdir)/core
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# Support IA32 and x86_64 platforms with one build
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# Set up architecture specifics; for cross compilation, set ARCH as apt
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# gnuefi sets up architecture specifics in ia32 or x86_64 sub directories
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# set up the LIBDIR and EFIINC for building for the appropriate architecture
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GCCOPT := $(call gcc_ok,-fno-stack-protector,)
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EFIINC = $(objdir)/include/efi
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LIBDIR = $(objdir)/lib
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ifeq ($(ARCH),i386)
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ARCHOPT = -m32 -march=i386
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EFI_SUBARCH = ia32
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endif
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ifeq ($(ARCH),x86_64)
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ARCHOPT = -m64 -march=x86-64
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EFI_SUBARCH = $(ARCH)
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endif
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#LIBDIR=/usr/lib
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FORMAT=efi-app-$(EFI_SUBARCH)
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CFLAGS = -I$(EFIINC) -I$(EFIINC)/$(EFI_SUBARCH) \
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-DEFI_FUNCTION_WRAPPER -fPIC -fshort-wchar -ffreestanding \
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-Wall -I$(com32)/include -I$(com32)/include/sys \
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-I$(core)/include -I$(core)/ $(ARCHOPT) \
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-I$(com32)/lib/ -I$(com32)/libutil/include -std=gnu99 \
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-DELF_DEBUG -DSYSLINUX_EFI -I$(objdir) \
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$(GCCWARN) -D__COM32__ -D__FIRMWARE_$(FIRMWARE)__ -mno-red-zone \
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-DLDLINUX=\"$(LDLINUX)\" -fvisibility=hidden \
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-Wno-unused-parameter $(GCCOPT)
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CRT0 := $(LIBDIR)/crt0-efi-$(EFI_SUBARCH).o
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LDSCRIPT := $(LIBDIR)/elf_$(EFI_SUBARCH)_efi.lds
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LDFLAGS = -T $(SRC)/$(ARCH)/syslinux.ld -Bsymbolic -pie -nostdlib -znocombreloc \
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-L$(LIBDIR) --hash-style=gnu -m elf_$(ARCH) $(CRT0) -E
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SFLAGS = $(GCCOPT) $(GCCWARN) $(ARCHOPT) \
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-fomit-frame-pointer -D__COM32__ -D__FIRMWARE_$(FIRMWARE)__ \
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-nostdinc -iwithprefix include \
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-I$(com32)/libutil/include -I$(com32)/include -I$(com32)/include/sys $(GPLINCLUDE)
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LIBEFI = $(objdir)/lib/libefi.a
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$(LIBEFI):
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@echo Building gnu-efi for $(EFI_SUBARCH)
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$(topdir)/efi/check-gnu-efi.sh $(EFI_SUBARCH) $(objdir)
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%.o: %.S # Cancel old rule
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%.o: %.c
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.PRECIOUS: %.o
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%.o: %.S $(LIBEFI)
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$(CC) $(SFLAGS) -c -o $@ $<
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.PRECIOUS: %.o
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%.o: %.c $(LIBEFI)
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$(CC) $(CFLAGS) -c -o $@ $<
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#%.efi: %.so
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# $(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel \
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# -j .rela -j .reloc --target=$(FORMAT) $*.so $@
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