Merge mars.ravnborg.org:/home/sam/src/linux/kernel/bk/linux-2.5

into mars.ravnborg.org:/home/sam/src/linux/kernel/bk/kbuild

Makefile

@@ -90,25 +90,23 @@ KBUILD_MODULES :=
 KBUILD_BUILTIN := 1
 
 #	If we have only "make modules", don't compile built-in objects.
+#	When we're building modules with modversions, we need to consider
+#	the built-in objects during the descend as well, in order to
+#	make sure the checksums are uptodate before we record them.
 
 ifeq ($(MAKECMDGOALS),modules)
-  KBUILD_BUILTIN :=
+  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 endif
 
 #	If we have "make <whatever> modules", compile modules
 #	in addition to whatever we do anyway.
-
-ifneq ($(filter modules,$(MAKECMDGOALS)),)
-  KBUILD_MODULES := 1
-endif
-
 #	Just "make" or "make all" shall build modules as well
 
-ifeq ($(MAKECMDGOALS),)
+ifneq ($(filter all modules,$(MAKECMDGOALS)),)
   KBUILD_MODULES := 1
 endif
 
-ifneq ($(filter all,$(MAKECMDGOALS)),)
+ifeq ($(MAKECMDGOALS),)
   KBUILD_MODULES := 1
 endif
 
@@ -310,18 +308,6 @@ ifndef CONFIG_FRAME_POINTER
 CFLAGS		+= -fomit-frame-pointer
 endif
 
-#	When we're building modules with modversions, we need to consider
-#	the built-in objects during the descend as well, in order to
-#	make sure the checksums are uptodate before we record them.
-
-ifdef CONFIG_MODVERSIONS
-ifeq ($(KBUILD_MODULES),1)
-ifneq ($(KBUILD_BUILTIN),1)
-  KBUILD_BUILTIN := 1
-endif
-endif
-endif
-
 #
 # INSTALL_PATH specifies where to place the updated kernel and system map
 # images.  Uncomment if you want to place them anywhere other than root.
@@ -380,7 +366,7 @@ define rule_vmlinux__
 endef
 
 define rule_vmlinux
-	$(rule_vmlinux__)
+	$(rule_vmlinux__); \
 	$(NM) $@ | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > System.map
 endef
 
@@ -446,9 +432,8 @@ else
 	@echo '*** Warning: Overriding SUBDIRS on the command line can cause'
 	@echo '***          inconsistencies'
 endif
-	$(Q)mkdir -p $(MODVERDIR)
 endif
-	@echo '  Starting the build. KBUILD_BUILTIN=$(KBUILD_BUILTIN) KBUILD_MODULES=$(KBUILD_MODULES)'
+	$(if $(CONFIG_MODULES),$(Q)mkdir -p $(MODVERDIR))
 
 #	This can be used by arch/$ARCH/Makefile to preprocess
 #	their vmlinux.lds.S file
@@ -470,9 +455,7 @@ targets += arch/$(ARCH)/vmlinux.lds.s
 %.o: %.c scripts FORCE
 	$(Q)$(MAKE) $(build)=$(@D) $@
 %/:      scripts prepare FORCE
-	$(Q)$(MAKE) $(build)=$(@D)
-%.ko: scripts FORCE
-	$(Q)$(MAKE) $(build)=$(@D) $@
+	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
 %.lst: %.c scripts FORCE
 	$(Q)$(MAKE) $(build)=$(@D) $@
 %.s: %.S scripts FORCE
@@ -514,7 +497,7 @@ define filechk_version.h
 	if expr length "$(KERNELRELEASE)" \> $(uts_len) >/dev/null ; then \
 	  echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
 	  exit 1; \
-	fi;
+	fi; \
 	(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \
 	  echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
 	 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
@@ -825,6 +808,7 @@ help:
 	@echo  '* vmlinux	  - Build the bare kernel'
 	@echo  '* modules	  - Build all modules'
 	@echo  '  modules_install - Install all modules'
+	@echo  '  dir/            - Build all files in dir and below'
 	@echo  '  dir/file.[ois]  - Build specified target only'
 	@echo  '  rpm		  - Build a kernel as an RPM package'
 	@echo  '  tags/TAGS	  - Generate tags file for editors'

arch/i386/kernel/Makefile

@@ -38,14 +38,22 @@ obj-$(CONFIG_SCx200)		+= scx200.o
 
 # vsyscall.o contains the vsyscall DSO images as __initdata.
 # We must build both images before we can assemble it.
+# Note: kbuild does not track this dependency due to usage of .incbin
 $(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
-extra-y += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
+targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
 
 # The DSO images are built using a special linker script.
+quiet_cmd_syscall = SYSCALL $@
+      cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \
+		          -Wl,-T,$(filter-out FORCE,$^) -o $@
+
+vsyscall-flags = -shared -s -Wl,-soname=linux-vsyscall.so.1
+SYSCFLAGS_vsyscall-sysenter.so	= $(vsyscall-flags)
+SYSCFLAGS_vsyscall-int80.so	= $(vsyscall-flags)
+
 $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
-$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o
-	$(CC) -nostdlib -shared -s -Wl,-soname=linux-vsyscall.so.1 \
-	      -o $@ -Wl,-T,$^
+$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
+	$(call if_changed,syscall)
 
 # We also create a special relocatable object that should mirror the symbol
 # table and layout of the linked DSO.  With ld -R we can then refer to
@@ -53,5 +61,7 @@ $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o
 extra-y += vsyscall-syms.o
 $(obj)/built-in.o: $(obj)/vsyscall-syms.o
 $(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
-$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds $(obj)/vsyscall-sysenter.o
-	$(CC) -nostdlib -r -o $@ -Wl,-T,$^
+
+SYSCFLAGS_vsyscall-syms.o = -r
+$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds $(obj)/vsyscall-sysenter.o FORCE
+	$(call if_changed,syscall)

drivers/char/Makefile

@@ -82,8 +82,11 @@ obj-$(CONFIG_HANGCHECK_TIMER) += hangcheck-timer.o
 # Files generated that shall be removed upon make clean
 clean-files := consolemap_deftbl.c defkeymap.c qtronixmap.c
 
+quiet_cmd_conmk = CONMK   $@
+      cmd_conmk = scripts/conmakehash $< > $@
+
 $(obj)/consolemap_deftbl.c: $(src)/$(FONTMAPFILE)
-	$(call do_cmd,CONMK   $@,$(objtree)/scripts/conmakehash $< > $@)
+	$(call cmd,conmk)
 
 $(obj)/defkeymap.o:  $(obj)/defkeymap.c
 

drivers/pci/Makefile

@@ -42,16 +42,17 @@ endif
 
 host-progs := gen-devlist
 
-# Files generated that shall be removed upon make clean
-clean-files := devlist.h classlist.h
-
 # Dependencies on generated files need to be listed explicitly
-
 $(obj)/names.o: $(obj)/devlist.h $(obj)/classlist.h
+$(obj)/classlist.h: $(obj)/devlist.h
 
 # And that's how to generate them
-
+quiet_cmd_devlist = DEVLIST $@
+      cmd_devlist = ( cd $(obj); ./gen-devlist ) < $<
 $(obj)/devlist.h: $(src)/pci.ids $(obj)/gen-devlist
-	( cd $(obj); ./gen-devlist ) < $<
+	$(call cmd,devlist)
+
+# Files generated that shall be removed upon make clean
+clean-files := devlist.h classlist.h
+
 
-$(obj)/classlist.h: $(obj)/devlist.h

lib/Makefile

 #
 # Makefile for some libs needed in the kernel.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
 
 lib-y := errno.o ctype.o string.o vsprintf.o cmdline.o \
@@ -24,15 +20,18 @@ obj-$(CONFIG_CRC32)	+= crc32.o
 obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/
 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
 
-include $(TOPDIR)/drivers/net/Makefile.lib
-include $(TOPDIR)/drivers/usb/Makefile.lib
-include $(TOPDIR)/fs/Makefile.lib
-include $(TOPDIR)/net/bluetooth/bnep/Makefile.lib
+include drivers/net/Makefile.lib
+include drivers/usb/Makefile.lib
+include fs/Makefile.lib
+include net/bluetooth/bnep/Makefile.lib
 
 host-progs	:= gen_crc32table
 clean-files	:= crc32table.h
 
 $(obj)/crc32.o: $(obj)/crc32table.h
 
+quiet_cmd_crc32 = GEN     $@
+      cmd_crc32 = $< > $@
+
 $(obj)/crc32table.h: $(obj)/gen_crc32table
-	./$< > $@
+	$(call cmd,crc32)

scripts/Makefile.lib

@@ -227,24 +227,6 @@ if_changed_rule = $(if $(strip $? \
 
 cmd = @$(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
 
-# do_cmd is a shorthand used to support both compressed, verbose
-# and silent output in a single line.
-# Compared to cmd described avobe, do_cmd does no rely on any variables 
-# previously assigned a value.
-#
-# Usage $(call do_cmd,CMD   $@,cmd_to_execute bla bla)
-# Example:
-# $(call do_cmd,CP $@,cp -b $< $@)
-# make -s => nothing will be printed
-# make KBUILD_VERBOSE=1 => cp -b path/to/src.file path/to/dest.file
-# make KBUILD_VERBOSE=0 =>   CP path/to/dest.file
-define do_cmd
-	@$(if $(filter quiet_,$(quiet)), echo '  $(1)' &&,
-           $(if $(filter silent_,$(quiet)),,
-             echo "$(2)" &&)) \
-        $(2)
-endef
-
 #	$(call descend,<dir>,<target>)
 #	Recursively call a sub-make in <dir> with target <target> 
 # Usage is deprecated, because make do not see this as an invocation of make.