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 14KBUILD_CFLAGS += -m$(BITS) 15 16$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE 17 $(call if_changed,ld) 18 19targets += kexec-purgatory.c 20 21CMD_BIN2C = $(objtree)/scripts/basic/bin2c 22quiet_cmd_bin2c = BIN2C $@ 23 cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@ 24 25$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE 26 $(call if_changed,bin2c) 27 @: 28 29 30obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o 31