1# SPDX-License-Identifier: GPL-2.0-or-later 2# Copyright (c) 2021 Linux Test Project 3 4top_srcdir ?= ../../.. 5 6include $(top_srcdir)/include/mk/testcases.mk 7 8ASFLAGS = 9CPPFLAGS += -I$(abs_srcdir)/include 10GUEST_CPPFLAGS = $(CPPFLAGS) -DCOMPILE_PAYLOAD 11GUEST_CFLAGS = -ffreestanding -O2 -Wall -fno-asynchronous-unwind-tables -fno-stack-protector -mno-mmx -mno-sse 12GUEST_LDFLAGS = -nostdlib -Wl,--build-id=none -z noexecstack 13GUEST_LDLIBS = 14KVM_LD ?= $(LD) 15 16FILTER_OUT_MAKE_TARGETS := lib_guest lib_host lib_x86 17 18ifeq ($(HOST_CPU),x86_64) 19 ifneq (,$(findstring m32,$(CFLAGS))) 20 HOST_CPU = x86 21 endif 22endif 23 24ifeq ($(HOST_CPU),x86) 25 GUEST_CFLAGS += -m32 26 ASFLAGS += --32 27endif 28 29# Some distros enable -pie by default. That breaks KVM payload linking. 30ifdef LTP_CFLAGS_NOPIE 31 GUEST_CFLAGS += -fno-pie 32 GUEST_LDFLAGS += -no-pie 33endif 34 35GUEST_LDFLAGS += -Wl,-T$(abs_srcdir)/linker/$(HOST_CPU).lds 36ARCH_OBJ = bootstrap_$(HOST_CPU).o 37 38ifeq ($(HOST_CPU),x86_64) 39ARCH_OBJ += lib_x86.o 40BIN_FORMAT=elf64-x86-64 41else ifeq ($(HOST_CPU),x86) 42ARCH_OBJ += lib_x86.o 43BIN_FORMAT=elf32-i386 44else 45MAKE_TARGETS = 46endif 47 48lib_guest.o $(ARCH_OBJ): CPPFLAGS := $(GUEST_CPPFLAGS) 49lib_guest.o $(ARCH_OBJ): CFLAGS := $(GUEST_CFLAGS) 50 51kvm_svm03: CFLAGS += -pthread 52kvm_svm03: LDLIBS += -pthread 53 54include $(top_srcdir)/include/mk/generic_leaf_target.mk 55 56%-payload.o: %.c lib_guest.o $(ARCH_OBJ) 57ifdef VERBOSE 58 $(CC) $(GUEST_CPPFLAGS) $(GUEST_CFLAGS) $(GUEST_LDFLAGS) -o $*-payload.elf $^ $(GUEST_LDLIBS) 59 objcopy -O binary -j .init.boot -j .text -j .data -j .init -j .preinit_array -j .init_array --gap-fill=0 $*-payload.elf $*-payload.bin 60 $(KVM_LD) -z noexecstack -r -T $(abs_srcdir)/linker/payload.lds --oformat=$(BIN_FORMAT) -o $@ $*-payload.bin 61else 62 @$(CC) $(GUEST_CPPFLAGS) $(GUEST_CFLAGS) $(GUEST_LDFLAGS) -o $*-payload.elf $^ $(GUEST_LDLIBS) 63 @objcopy -O binary -j .init.boot -j .text -j .data -j .init -j .preinit_array -j .init_array --gap-fill=0 $*-payload.elf $*-payload.bin 64 @$(KVM_LD) -z noexecstack -r -T $(abs_srcdir)/linker/payload.lds --oformat=$(BIN_FORMAT) -o $@ $*-payload.bin 65 @echo KVM_CC $(target_rel_dir)$@ 66endif 67 @rm $*-payload.elf $*-payload.bin 68 69$(MAKE_TARGETS): %: %-payload.o lib_host.o 70