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https://gitlab.com/bztsrc/posix-uefi.git
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78 lines
2.1 KiB
Makefile
78 lines
2.1 KiB
Makefile
MYARCH = $(shell uname -m | sed s,i[3456789]86,ia32,)
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ifeq ($(ARCH),)
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ARCH = $(MYARCH)
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endif
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SRCS ?= $(wildcard *.c) $(wildcard *.S)
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TMP = $(SRCS:.c=.o)
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OBJS = $(TMP:.S=.o)
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CFLAGS += -mno-red-zone -fpic -fshort-wchar -fno-strict-aliasing -ffreestanding -fno-stack-protector -fno-stack-check \
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-D__$(ARCH)__ -I/usr/include -I. -I./uefi -I/usr/include/efi -I/usr/include/efi/$(ARCH) -I/usr/include/efi/protocol
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LDFLAGS += -nostdlib -shared -Bsymbolic
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LIBSRCS = $(filter-out crt_$(ARCH).c,$(wildcard *.c)) $(wildcard *.S)
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TMP = $(LIBSRCS:.c=.o)
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LIBOBJS = $(TMP:.S=.o)
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ifeq ($(USE_LLVM),)
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CFLAGS += -Wno-builtin-declaration-mismatch
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# see if we're cross-compiling
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ifeq ($(ARCH),$(MYARCH))
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CC = $(ARCH)-elf-gcc
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LD = $(ARCH)-elf-ld
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else
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CC = gcc
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LD = ld
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endif
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else
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CFLAGS += --target=$(ARCH)-elf -Wno-builtin-requires-header -Wno-incompatible-library-redeclaration
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LDFLAGS += -m elf_$(ARCH)
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CC = clang
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LD = ld.lld
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endif
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# you will need this from GNU binutils, llvm-objcopy won't cut it
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OBJCOPY ?= objcopy
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AR ?= ar
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ifeq ($(wildcard uefi/Makefile),)
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ALLTARGETS = crt_$(ARCH).o libuefi.a build
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else
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ALLTARGETS = uefi/crt_$(ARCH).o uefi/libuefi.a $(OBJS) $(TARGET)
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endif
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all: $(ALLTARGETS)
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uefi/libuefi.a:
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@make --no-print-directory -C uefi libuefi.a
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libuefi.a: $(LIBOBJS)
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@rm $@ 2>/dev/null || true
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$(AR) -frsv $@ $(LIBOBJS) >/dev/null
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$(TARGET): $(TARGET).so
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@$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .rel.* -j .rela.* -j .reloc --target efi-app-$(ARCH) --subsystem=10 $^ $@
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@rm $(TARGET).so
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$(TARGET).so: uefi/crt_$(ARCH).o $(OBJS)
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$(LD) $(LDFLAGS) -Luefi $^ -o $@ $(LIBS) -luefi -T uefi/elf_$(ARCH)_efi.lds
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%.o: %.c
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$(CC) $(CFLAGS) -c $< -o $@
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%.o: %.S
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$(CC) $(CFLAGS) -c $< -o $@
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build:
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@mkdir ../build ../build/uefi 2>/dev/null || true
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@cp crt_$(ARCH).o ../build/uefi/crt0.o
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@cp elf_$(ARCH)_efi.lds ../build/uefi/link.ld
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@cp libuefi.a uefi.h ../build/uefi
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clean:
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@rm $(TARGET) *.o *.a $(LIBOBJS) 2>/dev/null || true
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distclean: clean
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ifeq ($(wildcard uefi/Makefile),)
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@rm -rf ../build 2>/dev/null || true
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else
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@rm uefi/*.o uefi/libuefi.a 2>/dev/null || true
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endif
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