projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | # List of files in the vdso, has to be asm only for now |
| 2 | ||
| 1b29f9d1 | 3 | obj-vdso64 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o |
| 1da177e4 LT |
4 | |
| 5 | # Build rules | |
| 6 | ||
| 8150caad | 7 | targets := $(obj-vdso64) vdso64.so vdso64.so.dbg |
| 1da177e4 LT |
8 | obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64)) |
| 9 | ||
| a15098c9 ME |
10 | GCOV_PROFILE := n |
| 11 | ||
| 8150caad | 12 | EXTRA_CFLAGS := -shared -fno-common -fno-builtin |
| 0b0bf7a3 | 13 | EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso64.so.1 \ |
| f86fd306 | 14 | $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) |
| 1da177e4 LT |
15 | EXTRA_AFLAGS := -D__VDSO64__ -s |
| 16 | ||
| 17 | obj-y += vdso64_wrapper.o | |
| 18 | extra-y += vdso64.lds | |
| 19 | CPPFLAGS_vdso64.lds += -P -C -U$(ARCH) | |
| 20 | ||
| 21 | # Force dependency (incbin is bad) | |
| 22 | $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so | |
| 23 | ||
| 24 | # link rule for the .so file, .lds has to be first | |
| 8150caad | 25 | $(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) |
| 1da177e4 LT |
26 | $(call if_changed,vdso64ld) |
| 27 | ||
| 8150caad RM |
28 | # strip rule for the .so file |
| 29 | $(obj)/%.so: OBJCOPYFLAGS := -S | |
| 30 | $(obj)/%.so: $(obj)/%.so.dbg FORCE | |
| 31 | $(call if_changed,objcopy) | |
| 32 | ||
| 1da177e4 LT |
33 | # assembly rules for the .S files |
| 34 | $(obj-vdso64): %.o: %.S | |
| 35 | $(call if_changed_dep,vdso64as) | |
| 36 | ||
| 37 | # actual build commands | |
| 38 | quiet_cmd_vdso64ld = VDSO64L $@ | |
| 39 | cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@ | |
| 40 | quiet_cmd_vdso64as = VDSO64A $@ | |
| 41 | cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $< | |
| 42 | ||
| 8150caad RM |
43 | # install commands for the unstripped file |
| 44 | quiet_cmd_vdso_install = INSTALL $@ | |
| 45 | cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ | |
| 46 | ||
| 47 | vdso64.so: $(obj)/vdso64.so.dbg | |
| 48 | @mkdir -p $(MODLIB)/vdso | |
| 49 | $(call cmd,vdso_install) | |
| 1da177e4 | 50 | |
| 8150caad | 51 | vdso_install: vdso64.so |