blob: ee8a18e50a250d783f8e3ec70b11df49bc10b6b6 [file] [log] [blame]
# List of files in the vdso, has to be asm only for now
obj-vdso32 = gettimeofday.o clock_getres.o clock_gettime.o note.o
# Build rules
targets := $(obj-vdso32)
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS))
KBUILD_AFLAGS_31 += -m31 -s
KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS))
KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin
KBUILD_CFLAGS_31 += -nostdlib -Wl, \
$(call cc-ldoption, -Wl$(comma)--hash-style=both)
$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31)
$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31)
obj-y += vdso32_wrapper.o
extra-y += += -P -C -U$(ARCH)
# Disable gcov profiling for VDSO code
# Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/
# link rule for the .so file, .lds has to be first
$(obj)/ $(src)/ $(obj-vdso32)
$(call if_changed,vdso32ld)
# strip rule for the .so file
$(obj)/ OBJCOPYFLAGS := -S
$(obj)/ $(obj)/ FORCE
$(call if_changed,objcopy)
# assembly rules for the .S files
$(obj-vdso32): %.o: %.S
$(call if_changed_dep,vdso32as)
# actual build commands
quiet_cmd_vdso32ld = VDSO32L $@
cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
quiet_cmd_vdso32as = VDSO32A $@
cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $<
# install commands for the unstripped file
quiet_cmd_vdso_install = INSTALL $@
cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ $(obj)/
@mkdir -p $(MODLIB)/vdso
$(call cmd,vdso_install)