37 lines
969 B
Makefile
37 lines
969 B
Makefile
|
|
# List of files in the vdso, has to be asm only for now
|
|
|
|
obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o
|
|
|
|
# Build rules
|
|
|
|
targets := $(obj-vdso32) vdso32.so
|
|
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
|
|
|
|
|
|
EXTRA_CFLAGS := -shared -s -fno-common -fno-builtin
|
|
EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso32.so.1
|
|
EXTRA_AFLAGS := -D__VDSO32__ -s
|
|
|
|
obj-y += vdso32_wrapper.o
|
|
extra-y += vdso32.lds
|
|
CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
|
|
|
|
# Force dependency (incbin is bad)
|
|
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
|
|
|
|
# link rule for the .so file, .lds has to be first
|
|
$(obj)/vdso32.so: $(src)/vdso32.lds $(obj-vdso32)
|
|
$(call if_changed,vdso32ld)
|
|
|
|
# assembly rules for the .S files
|
|
$(obj-vdso32): %.o: %.S
|
|
$(call if_changed_dep,vdso32as)
|
|
|
|
# actual build commands
|
|
quiet_cmd_vdso32ld = VDSO32L $@
|
|
cmd_vdso32ld = $(CROSS32CC) $(c_flags) -Wl,-T $^ -o $@
|
|
quiet_cmd_vdso32as = VDSO32A $@
|
|
cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $<
|
|
|