1OBJECT_FILES_NON_STANDARD := y 2 3purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o 4 5targets += $(purgatory-y) 6PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) 7 8LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib 9targets += purgatory.ro 10 11KCOV_INSTRUMENT := n 12 13# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That 14# in turn leaves some undefined symbols like __fentry__ in purgatory and not 15# sure how to relocate those. Like kexec-tools, use custom flags. 16 17KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large 18KBUILD_CFLAGS += -m$(BITS) 19 20$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE 21 $(call if_changed,ld) 22 23targets += kexec-purgatory.c 24 25CMD_BIN2C = $(objtree)/scripts/basic/bin2c 26quiet_cmd_bin2c = BIN2C $@ 27 cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@ 28 29$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE 30 $(call if_changed,bin2c) 31 32obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o 33