projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b020632e MS |
1 | # List of files in the vdso, has to be asm only for now |
| 2 | ||
| 3 | obj-vdso32 = gettimeofday.o clock_getres.o clock_gettime.o note.o | |
| 4 | ||
| 5 | # Build rules | |
| 6 | ||
| 7 | targets := $(obj-vdso32) vdso32.so vdso32.so.dbg | |
| 8 | obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32)) | |
| 9 | ||
| 10 | KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS)) | |
| 11 | KBUILD_AFLAGS_31 += -m31 -s | |
| 12 | ||
| 13 | KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS)) | |
| 14 | KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin | |
| 15 | KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \ | |
| f86fd306 | 16 | $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) |
| b020632e MS |
17 | |
| 18 | $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31) | |
| 19 | $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31) | |
| 20 | ||
| 21 | obj-y += vdso32_wrapper.o | |
| 22 | extra-y += vdso32.lds | |
| 23 | CPPFLAGS_vdso32.lds += -P -C -U$(ARCH) | |
| 24 | ||
| 25 | # Force dependency (incbin is bad) | |
| 26 | $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so | |
| 27 | ||
| 28 | # link rule for the .so file, .lds has to be first | |
| 29 | $(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) | |
| 30 | $(call if_changed,vdso32ld) | |
| 31 | ||
| 32 | # strip rule for the .so file | |
| 33 | $(obj)/%.so: OBJCOPYFLAGS := -S | |
| 34 | $(obj)/%.so: $(obj)/%.so.dbg FORCE | |
| 35 | $(call if_changed,objcopy) | |
| 36 | ||
| 37 | # assembly rules for the .S files | |
| 38 | $(obj-vdso32): %.o: %.S | |
| 39 | $(call if_changed_dep,vdso32as) | |
| 40 | ||
| 41 | # actual build commands | |
| 42 | quiet_cmd_vdso32ld = VDSO32L $@ | |
| 43 | cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $^ -o $@ | |
| 44 | quiet_cmd_vdso32as = VDSO32A $@ | |
| 45 | cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $< | |
| 46 | ||
| 47 | # install commands for the unstripped file | |
| 48 | quiet_cmd_vdso_install = INSTALL $@ | |
| 49 | cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ | |
| 50 | ||
| 51 | vdso32.so: $(obj)/vdso32.so.dbg | |
| 52 | @mkdir -p $(MODLIB)/vdso | |
| 53 | $(call cmd,vdso_install) | |
| 54 | ||
| 55 | vdso_install: vdso32.so |