This keeps an unstripped copy of the 64bit vDSO images built before they are
stripped and embedded in the kernel. The unstripped copies get installed
in $(MODLIB)/vdso/ by "make install" (or you can explicitly use the
subtarget "make vdso_install"). These files can be useful when they
contain source-level debugging information.
[ tglx: arch/x86 adaptation ]
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
$(obj)/vdso.o: $(obj)/vdso.so
$(obj)/vdso.o: $(obj)/vdso.so
-targets += vdso.so vdso.lds $(vobjs-y) vdso-syms.o
+targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) vdso-syms.o
# The DSO images are built using a special linker script.
quiet_cmd_syscall = SYSCALL $@
# The DSO images are built using a special linker script.
quiet_cmd_syscall = SYSCALL $@
$(call ld-option, -Wl$(comma)--hash-style=sysv) \
-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
SYSCFLAGS_vdso.so = $(vdso-flags)
$(call ld-option, -Wl$(comma)--hash-style=sysv) \
-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
SYSCFLAGS_vdso.so = $(vdso-flags)
+SYSCFLAGS_vdso.so.dbg = $(vdso-flags)
$(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
$(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE
$(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
$(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE
+
+$(obj)/vdso.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
$(call if_changed,syscall)
$(call if_changed,syscall)
+$(obj)/%.so: OBJCOPYFLAGS := -S
+$(obj)/%.so: $(obj)/%.so.dbg FORCE
+ $(call if_changed,objcopy)
+
CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64
$(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL)
CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64
$(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL)
SYSCFLAGS_vdso-syms.o = -r -d
$(obj)/vdso-syms.o: $(src)/vdso.lds $(vobjs) FORCE
$(call if_changed,syscall)
SYSCFLAGS_vdso-syms.o = -r -d
$(obj)/vdso-syms.o: $(src)/vdso.lds $(vobjs) FORCE
$(call if_changed,syscall)
+
+quiet_cmd_vdso_install = INSTALL $@
+ cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@
+vdso.so:
+ @mkdir -p $(MODLIB)/vdso
+ $(call cmd,vdso_install)
+
+vdso_install: vdso.so
ifeq ($(CONFIG_IA32_EMULATION),y)
$(Q)$(MAKE) $(build)=arch/x86/ia32 $@
endif
ifeq ($(CONFIG_IA32_EMULATION),y)
$(Q)$(MAKE) $(build)=arch/x86/ia32 $@
endif
+ $(Q)$(MAKE) $(build)=arch/x86/vdso $@
archclean:
$(Q)rm -rf $(objtree)/arch/x86_64/boot
archclean:
$(Q)rm -rf $(objtree)/arch/x86_64/boot