1 # SPDX-License-Identifier: GPL-2.0
3 # List of files in the vdso, has to be asm only for now
5 obj-vdso32-$(CONFIG_PPC64) = getcpu.o
6 obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o \
12 VDSOCC := $(CROSS32_COMPILE)gcc
22 targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
23 obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
28 ccflags-y := -shared -fno-common -fno-builtin
29 ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
30 $(call cc-ldoption, -Wl$(comma)--hash-style=both)
31 asflags-y := -D__VDSO32__ -s
33 obj-y += vdso32_wrapper.o
35 CPPFLAGS_vdso32.lds += -P -C -Upowerpc
37 # Force dependency (incbin is bad)
38 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
40 # link rule for the .so file, .lds has to be first
41 $(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE
42 $(call if_changed,vdso32ld)
44 # strip rule for the .so file
45 $(obj)/%.so: OBJCOPYFLAGS := -S
46 $(obj)/%.so: $(obj)/%.so.dbg FORCE
47 $(call if_changed,objcopy)
49 # assembly rules for the .S files
50 $(obj-vdso32): %.o: %.S FORCE
51 $(call if_changed_dep,vdso32as)
53 # actual build commands
54 quiet_cmd_vdso32ld = VDSO32L $@
55 cmd_vdso32ld = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^)
56 quiet_cmd_vdso32as = VDSO32A $@
57 cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) -c -o $@ $<
59 # install commands for the unstripped file
60 quiet_cmd_vdso_install = INSTALL $@
61 cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
63 vdso32.so: $(obj)/vdso32.so.dbg
64 @mkdir -p $(MODLIB)/vdso
65 $(call cmd,vdso_install)
67 vdso_install: vdso32.so