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# -*- Mode: makefile; indent-tabs-mode: t -*-
#
# This file is part of systemd.
#
# Copyright 2010-2012 Lennart Poettering
# Copyright 2010-2012 Kay Sievers
# Copyright 2013 Zbigniew Jędrzejewski-Szmek
# Copyright 2013 David Strauss
# Copyright 2016 Luke Shumaker
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with systemd; If not, see <http://www.gnu.org/licenses/>.
include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk
include $(topsrcdir)/build-aux/Makefile.head.mk
ifneq ($(ENABLE_EFI),)
ifneq ($(HAVE_GNUEFI),)
# ------------------------------------------------------------------------------
efi_cppflags = \
$(EFI_CPPFLAGS) \
-I$(top_builddir) -include config.h \
-I$(EFI_INC_DIR)/efi \
-I$(EFI_INC_DIR)/efi/$(EFI_ARCH) \
-DEFI_MACHINE_TYPE_NAME=\"$(EFI_MACHINE_TYPE_NAME)\"
efi_cflags = \
$(EFI_CFLAGS) \
-Wall \
-Wextra \
-std=gnu90 \
-nostdinc \
-ggdb -O0 \
-fpic \
-fshort-wchar \
-nostdinc \
-ffreestanding \
-fno-strict-aliasing \
-fno-stack-protector \
-Wsign-compare \
-Wno-missing-field-initializers
ifneq ($(ARCH_X86_64),)
efi_cflags += \
-mno-red-zone \
-mno-sse \
-mno-mmx \
-DEFI_FUNCTION_WRAPPER \
-DGNU_EFI_USE_MS_ABI
endif # ARCH_X86_64
ifneq ($(ARCH_IA32),)
efi_cflags += \
-mno-sse \
-mno-mmx
endif # ARCH_IA32
efi_ldflags = \
$(EFI_LDFLAGS) \
-T $(EFI_LDS_DIR)/elf_$(EFI_ARCH)_efi.lds \
-shared \
-Bsymbolic \
-nostdlib \
-znocombreloc \
-L $(EFI_LIB_DIR) \
$(EFI_LDS_DIR)/crt0-efi-$(EFI_ARCH).o
# Aarch64 and ARM32 don't have an EFI capable objcopy. Use 'binary' instead,
# and add required symbols manually.
ifneq ($(ARCH_AARCH64),)
efi_ldflags += --defsym=EFI_SUBSYSTEM=0xa
EFI_FORMAT = -O binary
else
EFI_FORMAT = --target=efi-app-$(EFI_ARCH)
endif # ARCH_AARCH64
$(outdir)/%.o: $(srcdir)/%.c
$(AM_V_EFI_CC)$(EFI_CC) $(efi_cppflags) $(efi_cflags) -c $< -o $@
$(outdir)/%.so:
@if test $(words $^) = 0; then echo 'Cannot link EFI library with no dependencies: $@' >&2; exit 1; fi
$(AM_V_EFI_CCLD)$(LD) $(efi_ldflags) $^ -o $@ -lefi -lgnuefi $(shell $(CC) -print-libgcc-file-name)
$(AM_V_at)! { nm -D -u $@ | grep ' U '; }
# These next 2 are the same rule
$(outdir)/%$(EFI_MACHINE_TYPE_NAME).efi : $(outdir)/%.so; $(AM_V_GEN)$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .reloc $(EFI_FORMAT) $< $@
$(outdir)/%$(EFI_MACHINE_TYPE_NAME).efi.stub: $(outdir)/%.so; $(AM_V_GEN)$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .reloc $(EFI_FORMAT) $< $@
# ------------------------------------------------------------------------------
systemd_boot_headers = \
src/boot/efi/util.h \
src/boot/efi/console.h \
src/boot/efi/graphics.h \
src/boot/efi/pefile.h \
src/boot/efi/measure.h \
src/boot/efi/disk.h
systemd_boot_sources = \
src/boot/efi/util.c \
src/boot/efi/console.c \
src/boot/efi/graphics.c \
src/boot/efi/pefile.c \
src/boot/efi/disk.c \
src/boot/efi/measure.c \
src/boot/efi/boot.c
systemd_boot = systemd-boot$(EFI_MACHINE_TYPE_NAME).efi
std.out_files += $(systemd_boot)
std.sys_files += $(bootlibdir)/$(systemd_boot)
$(outdir)/systemd-boot.so: $(addprefix $(outdir)/,$(notdir $(systemd_boot_sources:.c=.o)))
# ------------------------------------------------------------------------------
stub_headers = \
src/boot/efi/util.h \
src/boot/efi/pefile.h \
src/boot/efi/disk.h \
src/boot/efi/graphics.h \
src/boot/efi/splash.h \
src/boot/efi/measure.h \
src/boot/efi/linux.h
stub_sources = \
src/boot/efi/util.c \
src/boot/efi/pefile.c \
src/boot/efi/disk.c \
src/boot/efi/graphics.c \
src/boot/efi/splash.c \
src/boot/efi/linux.c \
src/boot/efi/measure.c \
src/boot/efi/stub.c
stub = linux$(EFI_MACHINE_TYPE_NAME).efi.stub
std.out_files += $(stub)
std.sys_files += $(bootlibdir)/$(stub)
$(outdir)/linux.so: $(addprefix $(outdir)/,$(notdir $(stub_sources:.c=.o)))
# ------------------------------------------------------------------------------
$(outdir)/test-efi-disk.img: $(outdir)/$(systemd_boot) $(outdir)/$(stub) $(srcdir)/test-efi-create-disk.sh
$(AM_V_GEN)$(@D)/test-efi-create-disk.sh
test-efi: $(outdir)/test-efi-disk.img
$(QEMU) -machine accel=kvm -m 1024 -bios $(QEMU_BIOS) -snapshot test-efi-disk.img
std.clean_files += test-efi-disk.img
# ------------------------------------------------------------------------------
endif # HAVE_GNUEFI
endif # ENABLE_EFI
include $(topsrcdir)/build-aux/Makefile.tail.mk
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