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