1purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o 2 3targets += $(purgatory-y) 4PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) 5 6LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib 7targets += purgatory.ro 8 9# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That 10# in turn leaves some undefined symbols like __fentry__ in purgatory and not 11# sure how to relocate those. Like kexec-tools, use custom flags. 12 13KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large 14 15$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE 16 $(call if_changed,ld) 17 18targets += kexec-purgatory.c 19 20quiet_cmd_bin2c = BIN2C $@ 21 cmd_bin2c = cat $(obj)/purgatory.ro | $(objtree)/scripts/basic/bin2c kexec_purgatory > $(obj)/kexec-purgatory.c 22 23$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE 24 $(call if_changed,bin2c) 25 26 27# No loaders for 32bits yet. 28ifeq ($(CONFIG_X86_64),y) 29 obj-$(CONFIG_KEXEC) += kexec-purgatory.o 30endif 31