| # SPDX-License-Identifier: GPL-2.0 | |
| # List of files in the vdso, has to be asm only for now | |
| obj-vdso32-$(CONFIG_PPC64) = getcpu.o | |
| obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o \ | |
| $(obj-vdso32-y) | |
| # Build rules | |
| ifeq ($(CONFIG_PPC32),y) | |
| CROSS32CC := $(CC) | |
| endif | |
| targets := $(obj-vdso32) vdso32.so vdso32.so.dbg | |
| obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32)) | |
| GCOV_PROFILE := n | |
| UBSAN_SANITIZE := n | |
| ccflags-y := -shared -fno-common -fno-builtin | |
| ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \ | |
| $(call cc-ldoption, -Wl$(comma)--hash-style=both) | |
| asflags-y := -D__VDSO32__ -s | |
| obj-y += vdso32_wrapper.o | |
| extra-y += vdso32.lds | |
| CPPFLAGS_vdso32.lds += -P -C -Upowerpc | |
| # 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.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE | |
| $(call if_changed,vdso32ld) | |
| # strip rule for the .so file | |
| $(obj)/%.so: OBJCOPYFLAGS := -S | |
| $(obj)/%.so: $(obj)/%.so.dbg FORCE | |
| $(call if_changed,objcopy) | |
| # assembly rules for the .S files | |
| $(obj-vdso32): %.o: %.S FORCE | |
| $(call if_changed_dep,vdso32as) | |
| # actual build commands | |
| quiet_cmd_vdso32ld = VDSO32L $@ | |
| cmd_vdso32ld = $(CROSS32CC) $(c_flags) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) | |
| quiet_cmd_vdso32as = VDSO32A $@ | |
| cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $< | |
| # install commands for the unstripped file | |
| quiet_cmd_vdso_install = INSTALL $@ | |
| cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ | |
| vdso32.so: $(obj)/vdso32.so.dbg | |
| @mkdir -p $(MODLIB)/vdso | |
| $(call cmd,vdso_install) | |
| vdso_install: vdso32.so |