1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunOBJECT_FILES_NON_STANDARD := y 4*4882a593Smuzhiyun 5*4882a593Smuzhiyunpurgatory-y := head.o purgatory.o string.o sha256.o mem.o 6*4882a593Smuzhiyun 7*4882a593Smuzhiyuntargets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro 8*4882a593SmuzhiyunPURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE 11*4882a593Smuzhiyun $(call if_changed_rule,cc_o_c) 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunCFLAGS_sha256.o := -D__DISABLE_EXPORTS 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE 16*4882a593Smuzhiyun $(call if_changed_rule,as_o_S) 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunKCOV_INSTRUMENT := n 19*4882a593SmuzhiyunGCOV_PROFILE := n 20*4882a593SmuzhiyunUBSAN_SANITIZE := n 21*4882a593SmuzhiyunKASAN_SANITIZE := n 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunKBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes 24*4882a593SmuzhiyunKBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare 25*4882a593SmuzhiyunKBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding 26*4882a593SmuzhiyunKBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common 27*4882a593SmuzhiyunKBUILD_CFLAGS += -fno-stack-protector 28*4882a593SmuzhiyunKBUILD_CFLAGS += $(CLANG_FLAGS) 29*4882a593SmuzhiyunKBUILD_CFLAGS += $(call cc-option,-fno-PIE) 30*4882a593SmuzhiyunKBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS)) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun# Since we link purgatory with -r unresolved symbols are not checked, so we 33*4882a593Smuzhiyun# also link a purgatory.chk binary without -r to check for unresolved symbols. 34*4882a593SmuzhiyunPURGATORY_LDFLAGS := -nostdlib -z nodefaultlib 35*4882a593SmuzhiyunLDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T 36*4882a593SmuzhiyunLDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS) 37*4882a593Smuzhiyun$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE 38*4882a593Smuzhiyun $(call if_changed,ld) 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun$(obj)/purgatory.chk: $(obj)/purgatory FORCE 41*4882a593Smuzhiyun $(call if_changed,ld) 42*4882a593Smuzhiyun 43*4882a593SmuzhiyunOBJCOPYFLAGS_purgatory.ro := -O elf64-s390 44*4882a593SmuzhiyunOBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*' 45*4882a593SmuzhiyunOBJCOPYFLAGS_purgatory.ro += --remove-section='.comment' 46*4882a593SmuzhiyunOBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*' 47*4882a593Smuzhiyun$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE 48*4882a593Smuzhiyun $(call if_changed,objcopy) 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun$(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE 51*4882a593Smuzhiyun $(call if_changed_rule,as_o_S) 52*4882a593Smuzhiyun 53*4882a593Smuzhiyunobj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += kexec-purgatory.o 54