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