arch/powerpc/kernel/vdso32/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 # List of files in the vdso, has to be asm only for now
   4
   5 obj-vdso32-$(CONFIG_PPC64) = getcpu.o
   6 obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o \
   7                 $(obj-vdso32-y)
   8
   9 # Build rules
  10
  11 ifeq ($(CONFIG_PPC32),y)
  12 CROSS32CC := $(CC)
  13 endif
  14
  15 targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
  16 obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
  17
  18 GCOV_PROFILE := n
  19 UBSAN_SANITIZE := n
  20
  21 ccflags-y := -shared -fno-common -fno-builtin
  22 ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
  23                 $(call cc-ldoption, -Wl$(comma)--hash-style=both)
  24 asflags-y := -D__VDSO32__ -s
  25
  26 obj-y += vdso32_wrapper.o
  27 extra-y += vdso32.lds
  28 CPPFLAGS_vdso32.lds += -P -C -Upowerpc
  29
  30 # Force dependency (incbin is bad)
  31 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
  32
  33 # link rule for the .so file, .lds has to be first
  34 $(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE
  35         $(call if_changed,vdso32ld)
  36
  37 # strip rule for the .so file
  38 $(obj)/%.so: OBJCOPYFLAGS := -S
  39 $(obj)/%.so: $(obj)/%.so.dbg FORCE
  40         $(call if_changed,objcopy)
  41
  42 # assembly rules for the .S files
  43 $(obj-vdso32): %.o: %.S FORCE
  44         $(call if_changed_dep,vdso32as)
  45
  46 # actual build commands
  47 quiet_cmd_vdso32ld = VDSO32L $@
  48       cmd_vdso32ld = $(CROSS32CC) $(c_flags) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
  49 quiet_cmd_vdso32as = VDSO32A $@
  50       cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $<
  51
  52 # install commands for the unstripped file
  53 quiet_cmd_vdso_install = INSTALL $@
  54       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
  55
  56 vdso32.so: $(obj)/vdso32.so.dbg
  57         @mkdir -p $(MODLIB)/vdso
  58         $(call cmd,vdso_install)
  59
  60 vdso_install: vdso32.so