[Patch 1/8] UML: Remove 'TOPDIR' from Makefiles

[WANG Cong]

TOPDIR is obsolete, use objtree instead.
This patch removes TOPDIR from all UML Makefiles.

Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>

---

diff --git a/arch/um/Makefile b/arch/um/Makefile
index ba6813a..57491af 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -158,7 +158,7 @@ ifneq ($(KBUILD_SRC),)
 	$(Q)mkdir -p $(objtree)/include/asm-um
 	$(Q)ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
 else
-	$(Q)cd $(TOPDIR)/$(dir $@) ; \
+	$(Q)cd $(objtree)/$(dir $@) ; \
 	ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@)
 endif
 
@@ -168,7 +168,7 @@ ifneq ($(KBUILD_SRC),)
 	$(Q)mkdir -p $(objtree)/include/asm-um
 	$(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
 else
-	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch
+	$(Q)cd $(objtree)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch
 endif
 
 $(objtree)/$(ARCH_DIR)/include:
diff --git a/arch/um/sys-ppc/Makefile b/arch/um/sys-ppc/Makefile
index a9814a7..a3cfae7 100644
--- a/arch/um/sys-ppc/Makefile
+++ b/arch/um/sys-ppc/Makefile
@@ -6,7 +6,7 @@ OBJ = built-in.o
 OBJS = ptrace.o sigcontext.o semaphore.o checksum.o miscthings.o misc.o \
 	ptrace_user.o sysrq.o
 
-EXTRA_AFLAGS := -DCONFIG_PPC32 -I. -I$(TOPDIR)/arch/ppc/kernel
+EXTRA_AFLAGS := -DCONFIG_PPC32 -I. -I$(objtree)/arch/ppc/kernel
 
 all: $(OBJ)
 
@@ -22,25 +22,25 @@ sigcontext.o: sigcontext.c
 
 semaphore.c:
 	rm -f $@
-	ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@
+	ln -s $(objtree)/arch/ppc/kernel/$@ $@
 
 checksum.S:
 	rm -f $@
-	ln -s $(TOPDIR)/arch/ppc/lib/$@ $@
+	ln -s $(objtree)/arch/ppc/lib/$@ $@
 
 mk_defs.c:
 	rm -f $@
-	ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@
+	ln -s $(objtree)/arch/ppc/kernel/$@ $@
 
 ppc_defs.head:
 	rm -f $@
-	ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@
+	ln -s $(objtree)/arch/ppc/kernel/$@ $@
 
 ppc_defs.h: mk_defs.c ppc_defs.head \
-		$(TOPDIR)/include/asm-ppc/mmu.h \
-		$(TOPDIR)/include/asm-ppc/processor.h \
-		$(TOPDIR)/include/asm-ppc/pgtable.h \
-		$(TOPDIR)/include/asm-ppc/ptrace.h
+		$(objtree)/include/asm-ppc/mmu.h \
+		$(objtree)/include/asm-ppc/processor.h \
+		$(objtree)/include/asm-ppc/pgtable.h \
+		$(objtree)/include/asm-ppc/ptrace.h
 #	$(CC) $(CFLAGS) -S mk_defs.c
 	cp ppc_defs.head ppc_defs.h
 # for bk, this way we can write to the file even if it's not checked out
@@ -56,13 +56,13 @@ ppc_defs.h: mk_defs.c ppc_defs.head \
 
 checksum.o: checksum.S
 	rm -f asm
-	ln -s $(TOPDIR)/include/asm-ppc asm
+	ln -s $(objtree)/include/asm-ppc asm
 	$(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
 	rm -f asm
 
 misc.o: misc.S ppc_defs.h
 	rm -f asm
-	ln -s $(TOPDIR)/include/asm-ppc asm
+	ln -s $(objtree)/include/asm-ppc asm
 	$(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
 	rm -f asm
 
diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
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