arch/powerpc/kernel/vdso64/Makefile

   1 # List of files in the vdso, has to be asm only for now
   2
   3 obj-vdso64 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o getcpu.o
   4
   5 # Build rules
   6
   7 targets := $(obj-vdso64) vdso64.so vdso64.so.dbg
   8 obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
   9
  10 GCOV_PROFILE := n
  11 UBSAN_SANITIZE := n
  12
  13 ccflags-y := -shared -fno-common -fno-builtin
  14 ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
  15                 $(call cc-ldoption, -Wl$(comma)--hash-style=both)
  16 asflags-y := -D__VDSO64__ -s
  17
  18 obj-y += vdso64_wrapper.o
  19 extra-y += vdso64.lds
  20 CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
  21
  22 # Force dependency (incbin is bad)
  23 $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
  24
  25 # link rule for the .so file, .lds has to be first
  26 $(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64)
  27         $(call if_changed,vdso64ld)
  28
  29 # strip rule for the .so file
  30 $(obj)/%.so: OBJCOPYFLAGS := -S
  31 $(obj)/%.so: $(obj)/%.so.dbg FORCE
  32         $(call if_changed,objcopy)
  33
  34 # assembly rules for the .S files
  35 $(obj-vdso64): %.o: %.S
  36         $(call if_changed_dep,vdso64as)
  37
  38 # actual build commands
  39 quiet_cmd_vdso64ld = VDSO64L $@
  40       cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
  41 quiet_cmd_vdso64as = VDSO64A $@
  42       cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $<
  43
  44 # install commands for the unstripped file
  45 quiet_cmd_vdso_install = INSTALL $@
  46       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
  47
  48 vdso64.so: $(obj)/vdso64.so.dbg
  49         @mkdir -p $(MODLIB)/vdso
  50         $(call cmd,vdso_install)
  51
  52 vdso_install: vdso64.so