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 11KASAN_SANITIZE := n 12KCOV_INSTRUMENT := n 13 14# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That 15# in turn leaves some undefined symbols like __fentry__ in purgatory and not 16# sure how to relocate those. Like kexec-tools, use custom flags. 17 18KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large 19KBUILD_CFLAGS += -m$(BITS) 20KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 21 22$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE 23 $(call if_changed,ld) 24 25targets += kexec-purgatory.c 26 27CMD_BIN2C = $(objtree)/scripts/basic/bin2c 28quiet_cmd_bin2c = BIN2C $@ 29 cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@ 30 31$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE 32 $(call if_changed,bin2c) 33 34obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o 35