projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b020632e MS |
1 | # List of files in the vdso, has to be asm only for now |
| 2 | ||
| 907fa061 HC |
3 | KCOV_INSTRUMENT := n |
| 4 | ||
| 249c543b | 5 | obj-vdso64 = gettimeofday.o clock_getres.o clock_gettime.o note.o getcpu.o |
| b020632e MS |
6 | |
| 7 | # Build rules | |
| 8 | ||
| 9 | targets := $(obj-vdso64) vdso64.so vdso64.so.dbg | |
| 10 | obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64)) | |
| 11 | ||
| 12 | KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS)) | |
| 13 | KBUILD_AFLAGS_64 += -m64 -s | |
| 14 | ||
| 15 | KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS)) | |
| 16 | KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin | |
| 17 | KBUILD_CFLAGS_64 += -nostdlib -Wl,-soname=linux-vdso64.so.1 \ | |
| aad1b688 | 18 | $(call cc-ldoption, -Wl$(comma)--hash-style=both) |
| b020632e MS |
19 | |
| 20 | $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64) | |
| 21 | $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64) | |
| 22 | ||
| 23 | obj-y += vdso64_wrapper.o | |
| 24 | extra-y += vdso64.lds | |
| 25 | CPPFLAGS_vdso64.lds += -P -C -U$(ARCH) | |
| 26 | ||
| add7490c PO |
27 | # Disable gcov profiling for VDSO code |
| 28 | GCOV_PROFILE := n | |
| 29 | ||
| b020632e MS |
30 | # Force dependency (incbin is bad) |
| 31 | $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so | |
| 32 | ||
| 33 | # link rule for the .so file, .lds has to be first | |
| 34 | $(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) | |
| 35 | $(call if_changed,vdso64ld) | |
| 36 | ||
| 37 | # strip rule for the .so file | |
| 38 | $(obj)/%.so: OBJCOPYFLAGS := -S | |
| 39 | $(obj)/%.so: $(obj)/%.so.dbg FORCE | |
| 40 | $(call if_changed,objcopy) | |
| 41 | ||
| 42 | # assembly rules for the .S files | |
| 43 | $(obj-vdso64): %.o: %.S | |
| 44 | $(call if_changed_dep,vdso64as) | |
| 45 | ||
| 46 | # actual build commands | |
| 47 | quiet_cmd_vdso64ld = VDSO64L $@ | |
| 48 | cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@ | |
| 49 | quiet_cmd_vdso64as = VDSO64A $@ | |
| 50 | cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $< | |
| 51 | ||
| 52 | # install commands for the unstripped file | |
| 53 | quiet_cmd_vdso_install = INSTALL $@ | |
| 54 | cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ | |
| 55 | ||
| 56 | vdso64.so: $(obj)/vdso64.so.dbg | |
| 57 | @mkdir -p $(MODLIB)/vdso | |
| 58 | $(call cmd,vdso_install) | |
| 59 | ||
| 60 | vdso_install: vdso64.so |