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- purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o
- targets += $(purgatory-y)
- PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
- LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
- targets += purgatory.ro
- # Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
- # in turn leaves some undefined symbols like __fentry__ in purgatory and not
- # sure how to relocate those. Like kexec-tools, use custom flags.
- KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
- KBUILD_CFLAGS += -m$(BITS)
- KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
- $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
- $(call if_changed,ld)
- targets += kexec-purgatory.c
- CMD_BIN2C = $(objtree)/scripts/basic/bin2c
- quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
- $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
- $(call if_changed,bin2c)
- @:
- obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o
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