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 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o getcpu.o
   6
   7 # Build rules
   8
   9 ifdef CROSS32_COMPILE
  10     VDSOCC := $(CROSS32_COMPILE)gcc
  11 else
  12     VDSOCC := $(CC)
  13 endif
  14
  15 CC32FLAGS :=
  16 ifdef CONFIG_PPC64
  17 CC32FLAGS += -m32
  18 endif
  19
  20 targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
  21 obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
  22
  23 GCOV_PROFILE := n
  24 KCOV_INSTRUMENT := n
  25 UBSAN_SANITIZE := n
  26
  27 ccflags-y := -shared -fno-common -fno-builtin -nostdlib \
  28         -Wl,-soname=linux-vdso32.so.1 -Wl,--hash-style=both
  29 asflags-y := -D__VDSO32__ -s
  30
  31 obj-y += vdso32_wrapper.o
  32 targets += vdso32.lds
  33 CPPFLAGS_vdso32.lds += -P -C -Upowerpc
  34
  35 # Force dependency (incbin is bad)
  36 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
  37
  38 # link rule for the .so file, .lds has to be first
  39 $(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE
  40         $(call if_changed,vdso32ld)
  41
  42 # strip rule for the .so file
  43 $(obj)/%.so: OBJCOPYFLAGS := -S
  44 $(obj)/%.so: $(obj)/%.so.dbg FORCE
  45         $(call if_changed,objcopy)
  46
  47 # assembly rules for the .S files
  48 $(obj-vdso32): %.o: %.S FORCE
  49         $(call if_changed_dep,vdso32as)
  50
  51 # actual build commands
  52 quiet_cmd_vdso32ld = VDSO32L $@
  53       cmd_vdso32ld = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
  54 quiet_cmd_vdso32as = VDSO32A $@
  55       cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) -c -o $@ $<
  56
  57 # install commands for the unstripped file
  58 quiet_cmd_vdso_install = INSTALL $@
  59       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
  60
  61 vdso32.so: $(obj)/vdso32.so.dbg
  62         @mkdir -p $(MODLIB)/vdso
  63         $(call cmd,vdso_install)
  64
  65 vdso_install: vdso32.so