Merge http://linux-isdn.bkbits.net/linux-2.5.make

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

Makefile

@@ -162,22 +162,21 @@ PERL		= perl
 MODFLAGS	= -DMODULE
 CFLAGS_MODULE   = $(MODFLAGS)
 AFLAGS_MODULE   = $(MODFLAGS)
+LDFLAGS_MODULE  = -r
 CFLAGS_KERNEL	=
 AFLAGS_KERNEL	=
+
 NOSTDINC_FLAGS  = -nostdinc -iwithprefix include
 
 CPPFLAGS	:= -D__KERNEL__ -Iinclude
 CFLAGS 		:= $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
 	  	   -fno-strict-aliasing -fno-common
-ifndef CONFIG_FRAME_POINTER
-CFLAGS		+= -fomit-frame-pointer
-endif
 AFLAGS		:= -D__ASSEMBLY__ $(CPPFLAGS)
 
 export	VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION KERNELRELEASE ARCH \
 	CONFIG_SHELL TOPDIR HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
 	CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
-	HOSTCXX HOSTCXXFLAGS LDFLAGS_BLOB
+	HOSTCXX HOSTCXXFLAGS LDFLAGS_BLOB LDFLAGS_MODULE
 
 export CPPFLAGS NOSTDINC_FLAGS OBJCOPYFLAGS LDFLAGS
 export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE 
@@ -203,7 +202,7 @@ scripts/docproc scripts/fixdep scripts/split-include : scripts ;
 
 .PHONY: scripts
 scripts:
-	+@$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts
 
 # Objects we will link into vmlinux / subdirs we need to visit
 # ---------------------------------------------------------------------------
@@ -260,6 +259,10 @@ ifdef CONFIG_MODULES
 export EXPORT_FLAGS := -DEXPORT_SYMTAB
 endif
 
+ifndef CONFIG_FRAME_POINTER
+CFLAGS		+= -fomit-frame-pointer
+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.
@@ -351,12 +354,12 @@ ifdef CONFIG_KALLSYMS
 kallsyms.o := .tmp_kallsyms2.o
 
 quiet_cmd_kallsyms = KSYM    $@
-cmd_kallsyms = sh $(KALLSYMS) $< $@
+cmd_kallsyms = $(NM) -n $< | scripts/kallsyms > $@
 
-.tmp_kallsyms1.o: .tmp_vmlinux1
-	$(call cmd,kallsyms)
+.tmp_kallsyms1.o .tmp_kallsyms2.o: %.o: %.S scripts FORCE
+	$(call if_changed_dep,as_o_S)
 
-.tmp_kallsyms2.o: .tmp_vmlinux2
+.tmp_kallsyms%.S: .tmp_vmlinux%
 	$(call cmd,kallsyms)
 
 .tmp_vmlinux1: $(vmlinux-objs) arch/$(ARCH)/vmlinux.lds.s FORCE
@@ -435,7 +438,7 @@ include/config/MARKER: scripts/split-include include/linux/autoconf.h
 # 	with it and forgot to run make oldconfig
 
 include/linux/autoconf.h: .config
-	+@$(call descend,scripts/kconfig,scripts/kconfig/conf)
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts/kconfig scripts/kconfig/conf
 	./scripts/kconfig/conf -s arch/$(ARCH)/Kconfig
 
 # Generate some files
@@ -542,7 +545,7 @@ _modinst_:
 
 .PHONY: $(patsubst %, _modinst_%, $(SUBDIRS))
 $(patsubst %, _modinst_%, $(SUBDIRS)) :
-	$(Q)$(MAKE) -f scripts/Makefile.modinst obj=$(patsubst _modinst_%,%,$@)
+	$(Q)$(MAKE) -rR -f scripts/Makefile.modinst obj=$(patsubst _modinst_%,%,$@)
 else # CONFIG_MODULES
 
 # Modules not configured
@@ -639,13 +642,13 @@ ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 	make_with_config
 
 scripts/kconfig/conf scripts/kconfig/mconf scripts/kconfig/qconf: scripts/fixdep FORCE
-	+@$(call descend,scripts/kconfig,$@)
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts/kconfig $@
 
 xconfig: scripts/kconfig/qconf
 	./scripts/kconfig/qconf arch/$(ARCH)/Kconfig
 
 menuconfig: scripts/kconfig/mconf
-	$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts lxdialog
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=scripts/lxdialog
 	./scripts/kconfig/mconf arch/$(ARCH)/Kconfig
 
 config: scripts/kconfig/conf
@@ -708,8 +711,9 @@ cmd_rmclean	  = rm -f $(CLEAN_FILES)
 clean: archclean $(addprefix _clean_,$(clean-dirs))
 	$(call cmd,rmclean)
 	@find . $(RCS_FIND_IGNORE) \
-	 	\( -name '*.[oas]' -o -name '.*.cmd' -o -name '.*.d' \
-		-o -name '.*.tmp' \) -type f -print | xargs rm -f
+	 	\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
+		-o -name '.*.d' -o -name '.*.tmp' \) -type f \
+		-print | xargs rm -f
 
 # mrproper - delete configuration + modules + core files
 #
@@ -795,7 +799,7 @@ help:
 	@echo  ''
 	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
 	@echo  'For further info browse Documentation/kbuild/*'
- 
+
 
 # Documentation targets
 # ---------------------------------------------------------------------------
@@ -827,7 +831,7 @@ else # ifneq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 # ===========================================================================
 
 %:: FORCE
-	$(MAKE) $@
+	$(Q)$(MAKE) $@
 
 endif # ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 endif # ifdef include_config
@@ -841,6 +845,9 @@ a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(NOSTDINC_FLAGS) \
 quiet_cmd_as_s_S = CPP     $@
 cmd_as_s_S       = $(CPP) $(a_flags)   -o $@ $< 
 
+quiet_cmd_as_o_S = AS      $@
+cmd_as_o_S       = $(CC) $(a_flags) -c -o $@ $<
+
 # read all saved command lines
 
 targets := $(wildcard $(sort $(targets)))
@@ -888,6 +895,6 @@ endef
 #	$(call descend,<dir>,<target>)
 #	Recursively call a sub-make in <dir> with target <target>
 
-descend = $(Q)$(MAKE) -f scripts/Makefile.build obj=$(1) $(2)
+descend =$(Q)$(MAKE) -f scripts/Makefile.build obj=$(1) $(2)
 
 FORCE:

arch/i386/Makefile

@@ -66,7 +66,7 @@ drivers-$(CONFIG_OPROFILE)		+= arch/i386/oprofile/
 CFLAGS += -Iarch/i386/$(MACHINE)
 AFLAGS += -Iarch/i386/$(MACHINE)
 
-makeboot = $(call descend,arch/i386/boot,$(1))
+makeboot =$(Q)$(MAKE) -f scripts/Makefile.build obj=arch/i386/boot $(1)
 
 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
 		clean archclean archmrproper
@@ -77,20 +77,20 @@ BOOTIMAGE=arch/i386/boot/bzImage
 zImage zlilo zdisk: BOOTIMAGE=arch/i386/boot/zImage
 
 zImage bzImage: vmlinux
-	+@$(call makeboot,$(BOOTIMAGE))
+	$(call makeboot,$(BOOTIMAGE))
 
 compressed: zImage
 
 zlilo bzlilo: vmlinux
-	+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zlilo)
+	$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zlilo)
 
 zdisk bzdisk: vmlinux
-	+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zdisk)
+	$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zdisk)
 
 install: vmlinux
-	+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) install)
+	$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) install)
 
 archclean:
-	@$(MAKE) -f scripts/Makefile.clean obj=arch/i386/boot
+	$(Q)$(MAKE) -f scripts/Makefile.clean obj=arch/i386/boot
 
 archmrproper:

arch/i386/boot/Makefile

@@ -32,12 +32,6 @@ subdir- 	:= compressed
 
 host-progs	:= tools/build
 
-# 	Default
-
-boot: bzImage
-
-include $(TOPDIR)/Rules.make
-
 # ---------------------------------------------------------------------------
 
 $(obj)/zImage:  IMAGE_OFFSET := 0x1000
@@ -53,6 +47,7 @@ cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \
 $(obj)/zImage $(obj)/bzImage: $(obj)/bootsect $(obj)/setup \
 			      $(obj)/vmlinux.bin $(obj)/tools/build FORCE
 	$(call if_changed,image)
+	@echo 'Kernel: $@ is ready'
 
 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
 	$(call if_changed,objcopy)
@@ -64,9 +59,8 @@ $(obj)/setup $(obj)/bootsect: %: %.o FORCE
 	$(call if_changed,ld)
 
 $(obj)/compressed/vmlinux: FORCE
-	+@$(call descend,$(obj)/compressed,IMAGE_OFFSET=$(IMAGE_OFFSET) \
-		$(obj)/compressed/vmlinux)
-
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=$(obj)/compressed \
+					IMAGE_OFFSET=$(IMAGE_OFFSET) $@
 
 zdisk: $(BOOTIMAGE)
 	dd bs=8192 if=$(BOOTIMAGE) of=/dev/fd0

arch/i386/boot/compressed/Makefile

@@ -13,6 +13,7 @@ LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32
 
 $(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
 	$(call if_changed,ld)
+	@:
 
 $(obj)/vmlinux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)

drivers/misc/Makefile

 #
 # Makefile for misc devices that really don't fit anywhere else.
 #
-
+obj- := misc.o	# Dummy rule to force built-in.o to be made
 include $(TOPDIR)/Rules.make

kernel/kallsyms.c

@@ -45,14 +45,11 @@ const char *kallsyms_lookup(unsigned long addr,
 		for (i = 0; i < best; i++)
 			name += strlen(name)+1;
 
-		/* Base symbol size on next symbol, but beware aliases. */
-		symbol_end = (unsigned long)_etext;
-		for (i = best+1; i < kallsyms_num_syms; i++) {
-			if (kallsyms_addresses[i] != kallsyms_addresses[best]){
-				symbol_end = kallsyms_addresses[i];
-				break;
-			}
-		}
+		/* Base symbol size on next symbol. */
+		if (best + 1 < kallsyms_num_syms)
+			symbol_end = kallsyms_addresses[best + 1];
+		else
+			symbol_end = (unsigned long)_etext;
 
 		*symbolsize = symbol_end - kallsyms_addresses[best];
 		*modname = NULL;

scripts/Makefile

@@ -8,31 +8,11 @@
 # docproc: 	 Preprocess .tmpl file in order to generate .sgml documentation
 # conmakehash:	 Create arrays for initializing the kernel console tables
 
-EXTRA_TARGETS := fixdep split-include docproc conmakehash
+host-progs    := fixdep split-include conmakehash docproc kallsyms
+build-targets := $(host-progs)
 
+# Let clean descend into subdirs
 subdir-	:= lxdialog kconfig
 
-# Yikes. We need to build this stuff here even if the user only wants
-# modules.
-
-KBUILD_BUILTIN := 1
-
-# The following temporary rule will make sure that people's
-# trees get updated to the right permissions, since patch(1)
-# can't do it
-# ---------------------------------------------------------------------------
-
-host-progs := fixdep split-include conmakehash docproc
-
-include $(TOPDIR)/Rules.make
-
-
-# ---------------------------------------------------------------------------
-# Targets hardcoded and wellknow in top-level makefile
-.PHONY: lxdialog
-lxdialog:
-	$(call descend,scripts/lxdialog,)
-
 # fixdep is needed to compile other host programs
-$(obj)/split-include $(obj)/docproc \
-$(obj)/conmakehash lxdialog: $(obj)/fixdep
+$(addprefix $(obj)/,$(filter-out fixdep,$(host-progs))): $(obj)/fixdep

scripts/Makefile.build

@@ -40,12 +40,14 @@ endif
 ifdef L_TARGET
 L_TARGET := $(obj)/$(L_TARGET)
 else
+ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-)),)
 O_TARGET := $(obj)/built-in.o
 endif
+endif
 
 __build: $(if $(KBUILD_BUILTIN),$(O_TARGET) $(L_TARGET) $(EXTRA_TARGETS)) \
-	 $(if $(KBUILD_MODULES),$(obj-m)) \
-	 $(subdir-ym)
+	 $(if $(KBUILD_MODULES),$(obj-m:.o=.ko)) \
+	 $(subdir-ym) $(build-targets)
 	@:
 
 # Compile C sources (.c)
@@ -103,7 +105,9 @@ cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
 	$(call if_changed_dep,cc_o_c)
 
 quiet_cmd_cc_lst_c = MKLST   $@
-cmd_cc_lst_c       = $(CC) $(c_flags) -g -c -o $*.o $< && sh scripts/makelst $*.o System.map $(OBJDUMP) > $@
+      cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
+		     $(CONFIG_SHELL) $(src)/scripts/makelst $*.o \
+				     System.map $(OBJDUMP) > $@
 
 %.lst: %.c FORCE
 	$(call if_changed_dep,cc_lst_c)
@@ -116,9 +120,6 @@ modkern_aflags := $(AFLAGS_KERNEL)
 $(real-objs-m)      : modkern_aflags := $(AFLAGS_MODULE)
 $(real-objs-m:.o=.s): modkern_aflags := $(AFLAGS_MODULE)
 
-a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(NOSTDINC_FLAGS) \
-	  $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
-
 quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
 cmd_as_s_S       = $(CPP) $(a_flags)   -o $@ $< 
 
@@ -171,21 +172,29 @@ endif
 #
 # Rule to link composite objects
 #
+quiet_cmd_link_multi-y = LD      $@
+cmd_link_multi-y = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(addprefix $(obj)/,$($(subst $(obj)/,,$(@:.o=-objs))) $($(subst $(obj)/,,$(@:.o=-y)))),$^)
 
-quiet_cmd_link_multi = LD $(quiet_modtag)  $@
-cmd_link_multi = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(addprefix $(obj)/,$($(subst $(obj)/,,$(@:.o=-objs))) $($(subst $(obj)/,,$(@:.o=-y)))),$^)
+quiet_cmd_link_multi-m = LD [M]  $@
+cmd_link_multi-m = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_MODULE) -o $@ $(filter $(addprefix $(obj)/,$($(subst $(obj)/,,$(@:.ko=-objs))) $($(subst $(obj)/,,$(@:.ko=-y)))),$^)
+
+quiet_cmd_link_single-m = LD [M]  $@
+cmd_link_single-m = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_MODULE) -o $@ $<
 
 # We would rather have a list of rules like
 # 	foo.o: $(foo-objs)
 # but that's not so easy, so we rather make all composite objects depend
 # on the set of all their parts
 $(multi-used-y) : %.o: $(multi-objs-y) FORCE
-	$(call if_changed,link_multi)
+	$(call if_changed,link_multi-y)
+
+$(multi-used-m:.o=.ko) : %.ko: $(multi-objs-m) FORCE
+	$(call if_changed,link_multi-m)
 
-$(multi-used-m) : %.o: $(multi-objs-m) FORCE
-	$(call if_changed,link_multi)
+$(single-used-m:.o=.ko) : %.ko: %.o FORCE
+	$(call if_changed,link_single-m)
 
-targets += $(multi-used-y) $(multi-used-m)
+targets += $(multi-used-y) $(multi-used-m:.o=.ko) $(single-used-m:.o=.ko)
 
 # Compile programs on the host
 # ===========================================================================
@@ -217,9 +226,7 @@ targets += $(multi-used-y) $(multi-used-m)
 # Create executable from a single .c file
 # host-csingle -> Executable
 quiet_cmd_host-csingle 	= HOSTCC  $@
-      cmd_host-csingle	= $(HOSTCC) -Wp,-MD,$(depfile) \
-			  $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
-			  $(HOST_LOADLIBES) -o $@ $<
+      cmd_host-csingle	= $(HOSTCC) $(hostc_flags) $(HOST_LOADLIBES) -o $@ $<
 $(host-csingle): %: %.c FORCE
 	$(call if_changed_dep,host-csingle)
 
@@ -235,9 +242,7 @@ $(host-cmulti): %: $(host-cobjs) $(host-cshlib) FORCE
 # Create .o file from a single .c file
 # host-cobjs -> .o
 quiet_cmd_host-cobjs	= HOSTCC  $@
-      cmd_host-cobjs	= $(HOSTCC) -Wp,-MD,$(depfile) \
-			  $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
-			  $(HOSTCFLAGS_$(@F)) -c -o $@ $<
+      cmd_host-cobjs	= $(HOSTCC) $(hostc_flags) -c -o $@ $<
 $(host-cobjs): %.o: %.c FORCE
 	$(call if_changed_dep,host-cobjs)
 
@@ -253,18 +258,14 @@ $(host-cxxmulti): %: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
 
 # Create .o file from a single .cc (C++) file
 quiet_cmd_host-cxxobjs	= HOSTCXX $@
-      cmd_host-cxxobjs	= $(HOSTCXX) -Wp,-MD,$(depfile) \
-			  $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
-			  $(HOSTCXXFLAGS_$(@F)) -c -o $@ $<
+      cmd_host-cxxobjs	= $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
 $(host-cxxobjs): %.o: %.cc FORCE
 	$(call if_changed_dep,host-cxxobjs)
 
 # Compile .c file, create position independent .o file
 # host-cshobjs -> .o
 quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
-      cmd_host-cshobjs	= $(HOSTCC) -Wp,-MD,$(depfile) -fPIC\
-			  $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
-			  $(HOSTCFLAGS_$(@F)) -c -o $@ $<
+      cmd_host-cshobjs	= $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
 $(host-cshobjs): %.o: %.c FORCE
 	$(call if_changed_dep,host-cshobjs)
 

scripts/Makefile.lib

@@ -43,6 +43,7 @@ __obj-m = $(filter-out export.o,$(obj-m))
 multi-used-y := $(sort $(foreach m,$(__obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
 multi-used-m := $(sort $(foreach m,$(__obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
 multi-used   := $(multi-used-y) $(multi-used-m)
+single-used-m := $(filter-out $(multi-used-m),$(obj-m))
 
 # Build list of the parts of our composite objects, our composite
 # objects depend on those (obviously)
@@ -92,12 +93,14 @@ host-cshobjs	:= $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
 # Add subdir path
 
 EXTRA_TARGETS	:= $(addprefix $(obj)/,$(EXTRA_TARGETS))
+build-targets	:= $(addprefix $(obj)/,$(build-targets))
 obj-y		:= $(addprefix $(obj)/,$(obj-y))
 obj-m		:= $(addprefix $(obj)/,$(obj-m))
 export-objs	:= $(addprefix $(obj)/,$(export-objs))
 subdir-obj-y	:= $(addprefix $(obj)/,$(subdir-obj-y))
 real-objs-y	:= $(addprefix $(obj)/,$(real-objs-y))
 real-objs-m	:= $(addprefix $(obj)/,$(real-objs-m))
+single-used-m	:= $(addprefix $(obj)/,$(single-used-m))
 multi-used-y	:= $(addprefix $(obj)/,$(multi-used-y))
 multi-used-m	:= $(addprefix $(obj)/,$(multi-used-m))
 multi-objs-y	:= $(addprefix $(obj)/,$(multi-objs-y))
@@ -128,6 +131,12 @@ modname_flags  = $(if $(filter 1,$(words $(modname))),-DKBUILD_MODNAME=$(subst $
 c_flags        = -Wp,-MD,$(depfile) $(CFLAGS) $(NOSTDINC_FLAGS) \
 	         $(modkern_cflags) $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o) \
 	         $(basename_flags) $(modname_flags) $(export_flags) 
+a_flags        = -Wp,-MD,$(depfile) $(AFLAGS) $(NOSTDINC_FLAGS)\
+		 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
+hostc_flags    = -Wp,-MD,$(depfile) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS)\
+		 $(HOSTCFLAGS_$(*F).o)
+hostcxx_flags  = -Wp,-MD,$(depfile) $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS)\
+		 $(HOSTCXXFLAGS_$(*F).o)
 
 # Finds the multi-part object the current object will be linked into
 modname-multi = $(sort $(foreach m,$(multi-used),\
@@ -139,7 +148,7 @@ modname-multi = $(sort $(foreach m,$(multi-used),\
 quiet_cmd_shipped = SHIPPED $@
 cmd_shipped = cat $< > $@
 
-%:: %_shipped
+$(obj)/%:: $(src)/%_shipped
 	$(call cmd,shipped)
 
 # Commands useful for building a boot image
@@ -236,4 +245,4 @@ endef
 #	$(call descend,<dir>,<target>)
 #	Recursively call a sub-make in <dir> with target <target> 
 
-descend = $(Q)$(MAKE) -f scripts/Makefile.build obj=$(1) $(2)
+descend =$(Q)$(MAKE) -f scripts/Makefile.build obj=$(1) $(2)

scripts/Makefile.modinst

@@ -15,12 +15,12 @@ include scripts/Makefile.lib
 
 # ==========================================================================
 
-quiet_cmd_modules_install = INSTALL $(obj-m)
+quiet_cmd_modules_install = INSTALL $(obj-m:.o=.ko)
       cmd_modules_install = mkdir -p $(MODLIB)/kernel && \
-		      cp $(obj-m) $(MODLIB)/kernel/
+		      cp $(obj-m:.o=.ko) $(MODLIB)/kernel/
 
 modules_install: $(subdir-ym)
-ifneq ($(obj-m),)
+ifneq ($(obj-m:.o=.ko),)
 	$(call cmd,modules_install)
 else
 	@:

scripts/kallsyms

-#! /bin/sh
-# Written by Rusty Russell <rusty@rustcorp.com.au> 2002.
-
-if [ $# -ne 2 ]; then
-    echo Usage: kallsyms vmlinux objfile >&2
-
-    echo Adds a .kallsyms section containing symbol info.
-    exit 1
-fi
-
-set -e
-
-# Clean up on exit.
-trap "rm -f kallsyms.map kallsyms.c $2" 0
-
-# Takes nm output from $1, produces a .c file on standard output.
-encode_symbols()
-{
-    # First take addresses.
-    echo "unsigned long kallsyms_addresses[] = {"
-    sed 's/^[	]*\([A-Fa-f0-9]*\).*/0x\1UL,/' < $1
-    echo "};"
-
-    # Now output size.
-    echo "unsigned long kallsyms_num_syms = `wc -l < $1`;"
-
-    # Now output names.
-    echo "char kallsyms_names[] = ";
-    sed 's/^[         ]*[A-Fa-f0-9]*[         ]*.[    ]\(.*\)/"\1\\0"/' < $1
-    echo ";"
-}
-
-# FIXME: Use System.map as input, and regenerate each time in Makefile.
-$NM -n $1 | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > kallsyms.map
-
-encode_symbols kallsyms.map > kallsyms.c
-$CC $CFLAGS -c -o $2 kallsyms.c
-
-trap "rm -f kallsyms.map kallsyms.c" 0
-exit 0

scripts/kallsyms.c

+/* Generate assembler source containing symbol information
+ *
+ * Copyright 2002       by Kai Germaschewski
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * Usage: nm -n vmlinux | scripts/kallsyms > symbols.S
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct sym_entry {
+	unsigned long long addr;
+	char type;
+	char *sym;
+};
+
+
+static struct sym_entry *table;
+static int size, cnt;
+static unsigned long long _stext, _etext;
+
+static void
+usage(void)
+{
+	fprintf(stderr, "Usage: kallsyms < in.map > out.S\n");
+	exit(1);
+}
+
+static int
+read_symbol(FILE *in, struct sym_entry *s)
+{
+	char str[500];
+	int rc;
+
+	rc = fscanf(in, "%llx %c %499s\n", &s->addr, &s->type, str);
+	if (rc != 3) {
+		if (rc != EOF) {
+			/* skip line */
+			fgets(str, 500, in);
+		}
+		return -1;
+	}
+	s->sym = strdup(str);
+	return 0;
+}
+
+static int
+symbol_valid(struct sym_entry *s)
+{
+	if (s->addr < _stext)
+		return 0;
+
+	if (s->addr > _etext)
+		return 0;
+
+	if (strstr(s->sym, "_compiled."))
+		return 0;
+
+	return 1;
+}
+
+static void
+read_map(FILE *in)
+{
+	int i;
+
+	while (!feof(in)) {
+		if (cnt >= size) {
+			size += 10000;
+			table = realloc(table, sizeof(*table) * size);
+			if (!table) {
+				fprintf(stderr, "out of memory\n");
+				exit (1);
+			}
+		}
+		if (read_symbol(in, &table[cnt]) == 0)
+			cnt++;
+	}
+	for (i = 0; i < cnt; i++) {
+		if (strcmp(table[i].sym, "_stext") == 0)
+			_stext = table[i].addr;
+		if (strcmp(table[i].sym, "_etext") == 0)
+			_etext = table[i].addr;
+	}
+}
+
+static void
+write_src(void)
+{
+	unsigned long long last_addr;
+	int i, valid = 0;
+
+	printf(".data\n");
+
+	printf(".globl kallsyms_addresses\n");
+	printf("\t.align 8\n");
+	printf("kallsyms_addresses:\n");
+	for (i = 0, last_addr = 0; i < cnt; i++) {
+		if (!symbol_valid(&table[i]))
+			continue;
+		
+		if (table[i].addr == last_addr)
+			continue;
+
+		printf("\t.long\t%#llx\n", table[i].addr);
+		valid++;
+		last_addr = table[i].addr;
+	}
+	printf("\n");
+
+	printf(".globl kallsyms_num_syms\n");
+	printf("\t.align 8\n");
+	printf("\t.long\t%d\n", valid);
+	printf("\n");
+
+	printf(".globl kallsyms_names\n");
+	printf(".data\n");
+	printf("\t.align 8\n");
+	printf("kallsyms_names:\n");
+	for (i = 0, last_addr = 0; i < cnt; i++) {
+		if (!symbol_valid(&table[i]))
+			continue;
+		
+		if (table[i].addr == last_addr)
+			continue;
+
+		printf("\t.string\t\"%s\"\n", table[i].sym);
+		last_addr = table[i].addr;
+	}
+	printf("\n");
+}
+
+int
+main(int argc, char **argv)
+{
+	if (argc != 1)
+		usage();
+
+	read_map(stdin);
+	write_src();
+
+	return 0;
+}
+

scripts/lxdialog/Makefile

@@ -15,19 +15,15 @@ endif
 endif
 endif
 
-host-progs := lxdialog
+host-progs    := lxdialog
+build-targets := $(host-progs)
 
 lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
 		 util.o lxdialog.o msgbox.o
 
-EXTRA_TARGETS := lxdialog
-
 first_rule: ncurses
 
-include $(TOPDIR)/Rules.make
-
 .PHONY: ncurses
-
 ncurses:
 	@echo "main() {}" > lxtemp.c
 	@if $(HOSTCC) lxtemp.c  $(HOST_LOADLIBES); then \