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prefix = @prefix@
datarootdir = @datarootdir@
datadir = @datadir@
ksplice-script = $(datadir)/ksplice/ksplice-obj.pl
KSPLICE_KID ?= $(error "You must set KSPLICE_KID.")
KSPLICE_VERSION ?= $(error "You must set KSPLICE_VERSION.")
map_printk ?= $(error "You must set map_printk.")
ifneq ($(KSPLICE_STANDALONE),)
KSPLICE_CFLAGS += -DKSPLICE_STANDALONE
endif
KSPLICE_CFLAGS += -DKSPLICE_KID=$(KSPLICE_KID)
KSPLICE_CFLAGS += -DMAP_PRINTK=0x$(map_printk)L
comma ?= ,
name-fix ?= $(subst $(comma),_,$(subst -,_,$(1)))
target = $(call name-fix,$(mod))
KSPLICE_MID = $(KSPLICE_KID)_$(target)
KSPLICE = ksplice-$(KSPLICE_MID)
KSPLICE_CORE = ksplice-$(KSPLICE_KID)
quiet_cmd_ksplice-collect = COLLECT $@
cmd_ksplice-collect = \
$(ksplice-script) finalize $< $<.final $* && \
$(LD) --script=$(obj)/ksplice.lds -r -o $@ $<.final
ksplice-mod-cflags = $(KSPLICE_CFLAGS) \
"-DKSPLICE_MID=$(KSPLICE_MID)" \
$(addprefix -DKSPLICE_TARGET=,$(target)) \
"-DKSPLICE_VERSION=\"$(KSPLICE_VERSION)\""
ksplice-new-code-objs = new-code-$(target).o collect-new-code-$(mod).o
ksplice-old-code-objs = old-code-$(target).o collect-old-code-$(mod).o
ifneq ($(KSPLICE_STANDALONE),)
ifeq ($(KSPLICE_SKIP_CORE),)
obj-m += $(KSPLICE_CORE).o
endif
UDIS86 = x86/libudis86
kudis86 += \
$(UDIS86)/itab.o \
$(UDIS86)/input.o \
$(UDIS86)/decode.o \
$(UDIS86)/syn.o \
$(UDIS86)/syn-intel.o \
$(UDIS86)/syn-att.o \
$(UDIS86)/udis86.o
$(KSPLICE_CORE)-objs = $(fake-ksplice.o) ksplice-rmsyms.o $(kudis86)
fake-ksplice.o = ksplice.o
$(obj)/$(KSPLICE_CORE).o: fake-ksplice.o =
endif
define ksplice-mod-vars
ifneq ($(KSPLICE_SHORT_NAME_HACK),)
obj-m += $(KSPLICE)-n.o $(KSPLICE)-o.o
$(KSPLICE)-n-objs = $(ksplice-new-code-objs)
$(KSPLICE)-o-objs = $(ksplice-old-code-objs)
else
obj-m += $(KSPLICE)-new.o $(KSPLICE)-old.o
$(KSPLICE)-new-objs = $(ksplice-new-code-objs)
$(KSPLICE)-old-objs = $(ksplice-old-code-objs)
endif
CFLAGS_new-code-$(target).o = $(ksplice-mod-cflags)
CFLAGS_old-code-$(target).o = $(ksplice-mod-cflags)
CPPFLAGS_ksplice.lds = $(ksplice-mod-cflags) -P
endef
$(foreach mod,$(KSPLICE_MODULES),$(eval $(ksplice-mod-vars)))
ifneq ($(KSPLICE_MODULES),)
$(foreach mod,$(KSPLICE_MODULES),$(obj)/new-code-$(target).o): $(obj)/%.o: $(src)/new_code_loader.c FORCE
$(call if_changed_rule,cc_o_c)
$(foreach mod,$(KSPLICE_MODULES),$(obj)/old-code-$(target).o): $(obj)/%.o: $(src)/old_code_loader.c FORCE
$(call if_changed_rule,cc_o_c)
endif
$(obj)/collect-new-code-%.o: $(obj)/%.o.KSPLICE_new_code $(obj)/ksplice.lds FORCE
$(call if_changed,ksplice-collect)
$(obj)/collect-old-code-%.o: $(obj)/%.o.KSPLICE_old_code $(obj)/ksplice.lds FORCE
$(call if_changed,ksplice-collect)
ifeq ($(quiet_cmd_cpp_lds_S),)
quiet_cmd_cpp_lds_S = LDS $@
cmd_cpp_lds_S = $(CPP) -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F)) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
%.lds: %.lds.S FORCE
$(call if_changed_dep,cpp_lds_S)
endif
$(obj)/ksplice.lds: $(src)/ksplice.lds.S FORCE
$(call if_changed_dep,cpp_lds_S)
CFLAGS_offsets.o += $(KSPLICE_CFLAGS)
ifeq ($(KSPLICE_SKIP_CORE),)
extra-y += offsets.o
endif
ifneq ($(KSPLICE_STANDALONE),)
CFLAGS_ksplice.o += $(KSPLICE_CFLAGS)
quiet_cmd_ksplice-rmsyms = RMSYMS $@
cmd_ksplice-rmsyms = \
$(ksplice-script) rmsyms $< $<.rmsyms && \
$(LD) --script=$(src)/ksplice-rmsyms.lds -r -o $@ $<.rmsyms
$(obj)/ksplice-rmsyms.o: $(obj)/ksplice.o $(obj)/offsets.o FORCE
$(call if_changed,ksplice-rmsyms)
endif # KSPLICE_STANDALONE
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