| |
| # List of files in the vdso, has to be asm only for now |
| |
| obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.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 $@ $< |
| |
