kmodsrc/Makefile.in

   1 prefix = @prefix@
   2 datarootdir = @datarootdir@
   3 datadir = @datadir@
   4
   5 ksplice-script = $(datadir)/ksplice/ksplice-obj.pl
   6
   7 KSPLICE_KID ?= $(error "You must set KSPLICE_KID.")
   8 KSPLICE_VERSION ?= $(error "You must set KSPLICE_VERSION.")
   9 map_printk ?= $(error "You must set map_printk.")
  10
  11 ifneq ($(KSPLICE_STANDALONE),)
  12     KSPLICE_CFLAGS += -DKSPLICE_STANDALONE
  13 endif
  14 KSPLICE_CFLAGS += -DKSPLICE_KID=$(KSPLICE_KID)
  15 KSPLICE_CFLAGS += -DMAP_PRINTK=0x$(map_printk)L
  16
  17 comma ?= ,
  18 name-fix ?= $(subst $(comma),_,$(subst -,_,$(1)))
  19 target = $(call name-fix,$(mod))
  20 KSPLICE_MID = $(KSPLICE_KID)_$(target)
  21 KSPLICE = ksplice-$(KSPLICE_MID)
  22 KSPLICE_CORE = ksplice-$(KSPLICE_KID)
  23
  24 quiet_cmd_ksplice-collect = COLLECT $@
  25 cmd_ksplice-collect = \
  26         $(ksplice-script) finalize $< $<.final $* && \
  27         $(LD) --script=$(obj)/ksplice.lds -r -o $@ $<.final
  28
  29 ksplice-mod-cflags = $(KSPLICE_CFLAGS) \
  30         "-DKSPLICE_MID=$(KSPLICE_MID)" \
  31         $(addprefix -DKSPLICE_TARGET=,$(target)) \
  32         "-DKSPLICE_VERSION=\"$(KSPLICE_VERSION)\""
  33
  34 ksplice-new-code-objs = new-code-$(target).o collect-new-code-$(mod).o
  35 ksplice-old-code-objs = old-code-$(target).o collect-old-code-$(mod).o
  36
  37 ifneq ($(KSPLICE_STANDALONE),)
  38 ifeq ($(KSPLICE_SKIP_CORE),)
  39 obj-m += $(KSPLICE_CORE).o
  40 endif
  41 UDIS86 = x86/libudis86
  42 kudis86 += \
  43         $(UDIS86)/itab.o \
  44         $(UDIS86)/input.o \
  45         $(UDIS86)/decode.o \
  46         $(UDIS86)/syn.o \
  47         $(UDIS86)/syn-intel.o \
  48         $(UDIS86)/syn-att.o \
  49         $(UDIS86)/udis86.o
  50 $(KSPLICE_CORE)-objs = $(fake-ksplice.o) ksplice-rmsyms.o $(kudis86)
  51 fake-ksplice.o = ksplice.o
  52 $(obj)/$(KSPLICE_CORE).o: fake-ksplice.o =
  53 endif
  54
  55 define ksplice-mod-vars
  56 obj-m += $(KSPLICE)-new.o $(KSPLICE)-old.o
  57 $(KSPLICE)-new-objs = $(ksplice-new-code-objs)
  58 $(KSPLICE)-old-objs = $(ksplice-old-code-objs)
  59 CFLAGS_new-code-$(target).o = $(ksplice-mod-cflags)
  60 CFLAGS_old-code-$(target).o = $(ksplice-mod-cflags)
  61 CPPFLAGS_ksplice.lds = $(ksplice-mod-cflags) -P
  62 endef
  63
  64 $(foreach mod,$(KSPLICE_MODULES),$(eval $(ksplice-mod-vars)))
  65
  66 ifneq ($(KSPLICE_MODULES),)
  67 $(foreach mod,$(KSPLICE_MODULES),$(obj)/new-code-$(target).o): $(obj)/%.o: $(src)/new_code_loader.c FORCE
  68         $(call if_changed_rule,cc_o_c)
  69 $(foreach mod,$(KSPLICE_MODULES),$(obj)/old-code-$(target).o): $(obj)/%.o: $(src)/old_code_loader.c FORCE
  70         $(call if_changed_rule,cc_o_c)
  71 endif
  72
  73 $(obj)/collect-new-code-%.o: $(obj)/%.o.KSPLICE_new_code $(obj)/ksplice.lds FORCE
  74         $(call if_changed,ksplice-collect)
  75 $(obj)/collect-old-code-%.o: $(obj)/%.o.KSPLICE_old_code $(obj)/ksplice.lds FORCE
  76         $(call if_changed,ksplice-collect)
  77
  78 ifeq ($(quiet_cmd_cpp_lds_S),)
  79 quiet_cmd_cpp_lds_S = LDS     $@
  80       cmd_cpp_lds_S = $(CPP) -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F)) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
  81
  82 %.lds: %.lds.S FORCE
  83         $(call if_changed_dep,cpp_lds_S)
  84 endif
  85
  86 $(obj)/ksplice.lds: $(src)/ksplice.lds.S FORCE
  87         $(call if_changed_dep,cpp_lds_S)
  88
  89 CFLAGS_offsets.o += $(KSPLICE_CFLAGS)
  90 ifeq ($(KSPLICE_SKIP_CORE),)
  91 extra-y += offsets.o
  92 endif
  93
  94 ifneq ($(KSPLICE_STANDALONE),)
  95 CFLAGS_ksplice.o += $(KSPLICE_CFLAGS)
  96
  97 RMSYMS = \
  98         thread_return \
  99         bust_spinlocks \
 100         task_curr \
 101         __kernel_text_address \
 102         tasklist_lock \
 103         stop_machine_run \
 104         module_mutex \
 105         modules \
 106         init_mm \
 107         phys_base \
 108         kallsyms_addresses \
 109         kallsyms_num_syms \
 110         kallsyms_names \
 111         kallsyms_token_table \
 112         kallsyms_token_index \
 113         __module_text_address \
 114         __start___ksymtab \
 115         __stop___ksymtab \
 116         __start___ksymtab_gpl \
 117         __stop___ksymtab_gpl \
 118         __start___ksymtab_gpl_future \
 119         __stop___ksymtab_gpl_future \
 120         __start___ksymtab_unused \
 121         __stop___ksymtab_unused \
 122         __start___ksymtab_unused_gpl \
 123         __stop___ksymtab_unused_gpl \
 124         __start___ksymtab_gpl_future \
 125         __stop___ksymtab_gpl_future \
 126         __start___kcrctab \
 127         __start___kcrctab_gpl \
 128         __start___kcrctab_gpl_future \
 129         __start___kcrctab_unused \
 130         __start___kcrctab_unused_gpl \
 131         ftrace_trace_function
 132
 133 quiet_cmd_ksplice-rmsyms = RMSYMS  $@
 134 cmd_ksplice-rmsyms = \
 135         $(ksplice-script) rmsyms $< $<.rmsyms $(RMSYMS) && \
 136         $(LD) -r -o $@ $<.rmsyms $(src)/ksplice-rmsyms.lds
 137 $(obj)/ksplice-rmsyms.o: $(obj)/ksplice.o $(obj)/offsets.o FORCE
 138         $(call if_changed,ksplice-rmsyms)
 139 endif # KSPLICE_STANDALONE